Research Parts

Symptoms, typical lifespan, DIY difficulty, and cost for individual parts and components.

A/C Clutch Turns the A/C on and off by engaging the compressor when you want cold air.

A/C Clutch Bearing Helps the A/C system's moving parts spin smoothly so they don't wear out quickly.

A/C Clutch Coil Connector Sends power to the A/C system to make the cold air work.

A/C Clutch Connector Provides the connection that powers the A/C system to engage when you turn on the cold air.

A/C Clutch Control Relay Harness Connector Connects the relay that helps the A/C compressor know when to start working to cool the car.

A/C Clutch Cycle Switch Controls when the A/C should turn on or off based on how much pressure is in the system.

A/C Clutch Cycle Switch Connector Helps send power to the part that turns the A/C on and off when needed.

A/C Clutch Hub Helps the A/C system get power from the engine to cool the car.

A/C Clutch Relay Turns the A/C system on by sending power to the compressor when needed.

A/C Compressor The main part of the A/C that pumps refrigerant through the system to make the air cold.

A/C Compressor Bypass Pulley Lets the engine keep running normally even if the A/C is not working.

A/C Compressor Connector Sends power to the A/C system to make it work.

A/C Compressor Control Valve Controls the amount of refrigerant going through the A/C to keep it cool at the right levels.

A/C Compressor Oil Seal Stops the oil from leaking out of the A/C compressor.

A/C Condenser Cools the refrigerant by turning it from a gas into a liquid so it can keep the car cool.

A/C Condenser Fan Switch Turns the fan on to cool down the A/C system when needed.

A/C Condenser With Drier Removes moisture and cools the refrigerant so it works better to cool the car.

A/C Control Vacuum Check Valve Stops air from leaking in the A/C system so it can change modes properly.

A/C Cut-Off Switch Turns off the A/C if the pressure gets too high or too low to protect the system.

A/C Desiccant Element Filter Keeps moisture out of the A/C system to prevent it from breaking down.

A/C Discharge Hose Sends the refrigerant from the A/C compressor to the part that cools it down.

A/C Evaporator Temperature Sensor Keeps the A/C from freezing up and stops it from overcooling.

A/C Evaporator Tube O-Ring A small seal that prevents refrigerant from leaking where the lines connect.

A/C Filter - In-Line A filter that keeps dirt out of the A/C system to help it run smoothly.

A/C High Side Pressure Switch Connector Connects the pressure sensor in the A/C system to the car’s electrical system.

A/C Hose Assembly A set of hoses that move the refrigerant through the A/C system.

A/C Leak Sealer A chemical additive that seals small refrigerant leaks in air conditioning systems.

A/C Line O-Ring A rubber seal that prevents leaks where the A/C lines connect.

A/C Liquid Hose Moves liquid refrigerant through the A/C system to help cool the air.

A/C Orifice Tube Controls the flow of refrigerant so the A/C system works efficiently.

A/C Pressure Switch Monitors the pressure in the A/C system to keep it working safely.

A/C Receiver Drier Desiccant Element A set of parts that helps keep the A/C system dry so it doesn’t freeze or corrode.

A/C Refrigerant Discharge/Suction Hose Assembly Hoses that carry refrigerant to and from different parts of the A/C system.

A/C Relay A switch that turns the A/C compressor on and off when needed.

A/C Relay Connector Connects the relay that powers the A/C compressor to the car’s electrical system.

A/C Schrader Valve A valve used to add or remove refrigerant from the A/C system.

A/C Selector Switch Connector Connects the switch that lets you control the A/C settings to the car’s wiring.

A/C Service Valve A valve that allows refrigerant to be added or removed during maintenance.

A/C Service Valve Cap A cap that keeps dirt out of the A/C service valve and stops leaks.

A/C Suction Hose Moves the refrigerant from the A/C’s cooling part back to the compressor to restart the cooling cycle.

A/C Switch Connector Connects the switches that control the A/C to the vehicle’s electrical system.

A/C System Treatment A maintenance additive that cleans and conditions A/C system components and lubricates the compressor.

A/C Trinary Switch Monitors the pressure and temperature in the A/C system to control the fan and compressor.

A/C Universal Accumulator Tank A tank that stores extra refrigerant and removes moisture to keep the A/C from freezing or corroding.

A/C Valve Core A small valve inside the service port that lets refrigerant be added or removed.

UV Leak Detection Dye A fluorescent dye added to A/C refrigerant to help locate leaks using an ultraviolet light.

ABS Control Module Connector Critical Connects the computer that controls the ABS to the car's electrical system.

ABS Hydraulic Unit Critical Controls the brake pressure to stop the wheels from locking up when braking hard.

ABS Pump And Motor Critical Helps control the brake pressure to prevent wheel lock-up when ABS is active.

ABS Relay Critical Turns on the ABS system when it's needed by sending power to the ABS motor and control unit.

ABS Relay Connector Critical Connects the ABS relay that powers the ABS system to the car’s wiring.

ABS Ring Critical Measures the speed of the wheels to help the ABS system stop the car safely without locking the wheels.

ABS Speed Sensor Critical Measures how fast the wheels are spinning to help the ABS stop the car safely without locking the wheels.

ABS Warning Light Relay Turns on the ABS warning light if there is a problem with the system.

ABS Wheel Speed Sensor Connector Critical Connects the wheel speed sensor that helps the ABS system to the car’s electrical system.

ABS Wheel Speed Sensor Wire Harness Critical A set of wires that send wheel speed data to the ABS system to stop the car safely.

Sensotronic Brake Control Unit Critical An electronic control module that manages advanced brake system functions including ABS, traction control, and brake force distribution on Mercedes-Benz vehicles.

Air Bag Clockspring Critical Keeps the airbag and steering wheel buttons connected electrically even when you turn the wheel.

Airbag/Crash Impact Sensor Critical The sensor that detects a crash and tells the airbag system to deploy.

Airbag/SRS Control Module Critical The computer that decides when to deploy your airbags.

Driver Airbag (Steering Wheel) Critical The airbag that deploys from the steering wheel in a crash.

Knee Airbag Critical The airbag that deploys near your knees, below the dash.

Occupant Classification Sensor Critical The sensor in the passenger seat that helps decide if the airbag should deploy.

Passenger Airbag (Dashboard) Critical The airbag that deploys from the dashboard for the front passenger.

Seat Belt Critical The strap of the seat belt that goes across your body.

Seat Belt Buckle Release Critical The part the seat belt clicks into, with the button you press to release it.

Seat Belt Latch Plate Critical The metal tab on the end of the seat belt that clicks into the buckle.

Seat Belt Pretensioner Critical The device that yanks your seat belt tight the instant a crash starts.

Seat Belt Retractor Critical The mechanism that reels your seat belt in and locks it during a hard stop.

Side Curtain Airbag Critical The airbag that drops down from the roof to protect your head in a side crash.

Side/Seat Airbag Critical The airbag built into the side of the seat that protects your torso.

Amplifier The unit that boosts audio signal to power your speakers.

Antenna Captures radio signals so the car’s radio can play clearly.

Antenna Cable Sends the radio signal from the antenna to the car’s audio system.

Antenna Connector Connects the antenna to the car’s audio system for clear radio reception.

Antenna Relay Controls the movement of a retractable antenna, making it go up and down when needed.

CD Changer A device that holds and plays multiple CDs in sequence, typically mounted in the trunk or under a seat.

Horn A device that makes a loud noise to alert others when needed.

Horn Connector A connector that links the horn to the car’s electrical system.

Horn Relay A relay that controls when the horn turns on and off.

Horn Relay Connector A connector that links the horn relay to the car’s electrical system.

Radio Capacitor A capacitor that helps reduce static and noise when listening to the radio.

Radio Installation Kit A set of parts that help install a new radio or audio system in the car.

Radio Knob A rotary control knob on the radio faceplate used to adjust volume or tune stations.

Radio Speaker Connector A connector that links the radio to the speakers.

Radio Wiring Harness A wiring harness that connects the radio to the car’s electrical system.

Speaker The part in your door or dash that actually makes the sound for your radio.

Subwoofer The big speaker that produces deep bass sound.

Tweeter The small speaker that handles the high notes for clearer sound.

Brake Adjusting Lever Critical A lever that adjusts the distance between the brake shoes and drum for proper braking.

Brake Adjusting Screw Critical A screw that controls how close the brake shoes are to the drum for proper braking.

Brake Anti-Rattle Clip A clip that keeps the brake pads in place to stop them from rattling or making noise.

Brake Bleeder Cap A small cap that covers the bleeder screw to keep it clean and free from debris.

Brake Bleeder Screw Critical A screw that lets air out of the brake lines to improve braking performance.

Brake Caliper Critical The part that squeezes the brake pads against the rotor to stop the car.

Brake Caliper Bolt/Pin Critical A bolt that holds the caliper in place and lets it move so it can apply pressure to the rotor.

Brake Caliper Bracket Critical The part that holds the brake caliper in place on the vehicle.

Brake Caliper Bracket Bolt Critical A bolt that holds the caliper bracket to the suspension or axle.

Brake Caliper Bushing Critical A small cushion that helps the caliper move smoothly and apply pressure evenly to the pads.

Brake Caliper Grease High-temperature grease for brake caliper slides and hardware.

Brake Caliper Piston Critical A piston that pushes the brake pads against the rotor to stop the car.

Brake Caliper Support Spring Critical A spring that helps hold the caliper in place and reduces noise during braking.

Brake Cleaner A fast-drying solvent spray that removes brake dust, grease, and contaminants from brake components for clean reassembly.

Brake Drum Critical The part of drum brakes that the brake shoes press against to stop the car.

Brake Dust Shield A metal or plastic shield that protects brake components from road debris, water, and brake dust.

Brake Fluid Critical The fluid that lets your brake pedal actually stop the car.

Brake Fluid Level Sensor Critical A sensor that tells you if the brake fluid is low.

Brake Fluid Level Sensor Connector Critical Connects the sensor that monitors brake fluid levels to the car’s electrical system.

Brake Hold Down Pin Critical A pin that holds the brake shoes in place in drum brakes.

Brake Hold Down Spring Critical A spring that holds the brake shoes in place inside the brake drum.

Brake Hold Down Spring Cup Critical A small part that holds the brake hold down spring in place on drum brakes.

Brake Hose Critical A tube that carries brake fluid to the brakes, so they can stop the car.

Brake Hose Banjo Bolt / Washer Critical A bolt and washer that keep the brake hose connected to the brake caliper and prevent fluid leaks.

Brake Hose Clip Critical A clip that holds the brake hose securely to the car to stop it from moving around.

Brake Light Switch Critical A switch that turns on the brake lights when you press the brake pedal.

Brake Master Cylinder Critical A part that creates hydraulic pressure to make the brakes work when you press the pedal.

Brake Master Cylinder Cap Critical A cap that keeps the brake fluid clean by sealing the master cylinder.

Brake Master Cylinder Reservoir Critical A kit used to repair or replace the brake fluid reservoir.

Brake Pad Pin Clip Critical A clip that keeps the brake pads in place so they don’t move around during braking.

Brake Pad Wear Sensor Critical A sensor that tells you when your brake pads are worn and need replacing.

Brake Pads Critical The pad that presses on the rotor to stop your car.

Brake Pedal Sensor Critical A sensor that detects how far you’ve pressed the brake pedal and controls the brake lights and other systems.

Brake Return Spring Critical A spring that pulls the brake pedal or shoes back into place after you release the brake.

Brake Rotor Critical The metal disc your brake pads clamp down on to stop the wheel.

Brake Rotor And Hub Assembly Critical A combined part that includes the brake rotor and hub for easier installation on the vehicle.

Brake Rotor Bolt Critical A bolt that holds the brake rotor in place on the hub or axle.

Brake Rotor Set Screw Critical A small screw that holds the brake rotor in place while the wheel is off for maintenance.

Brake Self Adjuster Cable Critical A cable that adjusts the brake shoes so they stay close to the drum for better braking.

Brake Shoe Spring Washer Critical A small part that helps hold the brake shoes in place inside drum brakes.

Brake Wiring Connector Critical Connects the wiring in the brake system to things like the ABS and brake lights.

Disc Brake Hardware Critical A kit that includes the hardware needed to install and maintain disc brakes.

Disc Brake Low Frequency Noise Damper A part that helps reduce the humming or droning noise made by disc brakes.

Drum Brake Adjusting Lever Pin Critical A pin that holds the drum brake adjusting lever in place.

Drum Brake Adjusting Lever Return Spring Critical A spring that helps reset the drum brake adjusting lever after it adjusts the brakes.

Drum Brake Self Adjuster Cable Guide Critical A guide that keeps the drum brake self-adjuster cable aligned.

Electronic Brake Assembly Critical A system that electronically controls the vehicle’s brakes for better performance.

Hydraulic Brake Line Critical A line that carries brake fluid to the brakes to make the vehicle stop.

Master Cylinder Cap Gasket Critical A gasket that seals the master cylinder cap to prevent brake fluid leaks.

Parking Brake Actuator Critical A part that automatically controls the parking brake in some cars.

Parking Brake Cable Critical A cable that connects the parking brake handle or pedal to the rear brakes.

Parking Brake Cable Connector Critical A connector that links the parking brake cable to the rear brakes.

Parking Brake Hardware Critical A kit that includes parts to fix or maintain the parking brake system.

Parking Brake Lever Critical A lever that allows you to manually set or release the parking brake.

Parking Brake Lever Return Spring Critical A spring that returns the parking brake lever to its resting position after use.

Parking Brake Pads Critical A set of pads that help keep the vehicle stationary when the parking brake is set.

Parking Brake Pedal Pad Critical A rubber pad that makes it easier to engage or release the parking brake with your foot.

Parking Brake Shoes Critical A part that presses against the brake drum to hold the vehicle in place when parked.

Parking Brake Strut Critical A part that links the parking brake shoes to help engage or release the parking brake.

Parking Brake Strut Spring Critical A spring that keeps tension on the parking brake strut for even brake engagement.

Parking Brake Warning Light Bulb A bulb that lights up the parking brake warning light on the dashboard.

Power Brake Booster Critical A part that makes it easier to stop the vehicle by amplifying the force on the brake pedal.

Power Brake Check Valve Critical A valve that keeps vacuum in the brake booster to help maintain brake performance.

Power Brake Filter Critical A filter that keeps debris from entering the brake booster’s vacuum or hydraulic system.

Wheel Cylinder Critical A part that helps press the brake shoes against the drum to stop the vehicle.

Wheel Cylinder Link Critical A part that connects the brake shoes to the wheel cylinder so the brakes can work.

Alternator Critical A part that generates electricity to power the car’s electrical systems and charge the battery.

Alternator Bracket Gasket Critical A seal that prevents leaks where the alternator connects to the engine.

Alternator Brush Critical A set of parts that conduct electricity inside the alternator to generate power.

Alternator Brush Holder Critical Holds the electrical brushes inside the alternator in place to generate power.

Alternator Commutator End Bearing Critical A bearing that helps the alternator's moving parts spin smoothly without wearing out.

Alternator Connector Critical Connects the alternator to the car’s electrical system to charge the battery and power accessories.

Alternator Decoupler Pulley Critical A pulley that reduces engine vibrations on the alternator to extend its life.

Alternator Drive End Bearing Critical A bearing that helps the alternator’s rotating parts spin smoothly and avoid wear.

Alternator Rectifier Critical Turns the alternator’s power into a form the car can use to run and charge the battery.

Alternator/Generator Diode Critical Prevents electricity from flowing back into the alternator and damaging it.

Auxiliary Battery Relay Sends power to and from the car’s auxiliary battery to make sure it charges and provides power when needed.

Battery Electrolyte Critical The acidic liquid inside a battery that enables electrical charge storage and transfer.

Battery Terminal Protectant A spray coating applied to battery terminals to prevent corrosion and oxidation.

Generator Critical A part that recharges the battery and powers the car’s electrical systems while driving.

Air Vent An opening in the dashboard or interior that directs heated or cooled air from the climate control system into the cabin.

Ambient Air Temperature Sensor Tells the car’s climate control system and engine how hot or cold the air outside is.

Ambient Air Temperature Sensor Connector Connects the outside air temperature sensor to the car’s electrical system.

Binary Switch Harness Connector Connects the switch that monitors A/C pressure to the car’s HVAC system.

Blend Door A flap that controls the flow of hot or cold air inside the car.

Blend Door Actuator A motor that moves the blend door to control whether hot or cold air comes through.

Blower Motor Critical The motor that blows hot or cold air through the car’s vents.

Blower Motor Connector Critical Connects the blower motor to the car’s electrical system to power the HVAC fan.

Blower Motor Control Unit Critical Controls how fast the HVAC blower motor runs, adjusting the airflow.

Blower Motor Cutout Relay Critical Turns off the blower motor if it gets too hot or is overused.

Blower Motor Relay Critical Sends power to the blower motor when you turn on the HVAC system.

Blower Motor Relay Connector Critical Connects the relay that powers the blower motor to the car’s electrical system.

Blower Motor Resistor Critical Controls how fast the blower motor runs by adjusting the airflow levels.

Blower Motor Resistor Connector Critical Connects the resistor that controls the blower motor speed to the car’s electrical system.

Blower Motor Switch Critical A switch that lets you control how fast the blower motor runs.

Blower Motor Wheel Critical The spinning part of the blower motor that pushes air through the vents.

Cabin Air Filter Filters the air that comes through your vents into the cabin.

Climate Control Knob The rotary dial or knob you turn to adjust heating, cooling, and fan speed in your climate control system.

Climate Control Module A computer that controls the heating and A/C in the car to keep it comfortable.

Compressor Control Relay A relay that turns the A/C compressor on and off when needed.

Compressor Cut-Off Switch A switch that turns off the A/C compressor to protect it from damage.

Control Duct Hose A hose that delivers air from the heating and A/C system to the car’s vents.

Cooled Seat Fan A small electric fan built into the seat cushion that circulates cool air to keep the driver or passenger comfortable in hot weather.

Cooled Seat Switch A dashboard control switch that activates the cooling function in heated and cooled seats.

Evaporator Core A part that cools the air in the car by absorbing heat from the cabin.

Expansion Valve A valve that controls how much refrigerant enters the A/C system to cool the car.

Heated Seat Element / Pad The heating element that warms the seat cushion and backrest when the heated seat function is activated.

Heater Control Valve A valve that controls how much coolant enters the heater to adjust cabin temperature.

Heater Core A part that heats the cabin by transferring heat from the engine's coolant to the air inside.

Heater Hose Critical A hose that carries engine coolant to the heater core to heat the cabin.

Heater Hose Assembly Critical A set of hoses that carries coolant to the heater core to heat the cabin.

Heater Hose Connector Critical A connector that joins heater hoses to the engine or heater core.

Heater Hose Retainer Clip Critical A clip that holds the heater hose in place to prevent leaks or disconnection.

Heater Relay A relay that controls when the heater fan turns on and off.

Humidity Sensor A sensor that measures how much moisture is in the air and adjusts the HVAC system.

Pressure In Compressor Switch A switch that monitors the pressure inside the A/C compressor to prevent damage.

Radiator And A/C Condenser Assembly Critical A unit that cools both the engine and A/C system.

Receiver Drier/Accumulator Critical A part that removes moisture and stores extra refrigerant in the A/C system.

Recirculation Door Actuator A part that controls whether the HVAC system pulls in outside air or recirculates air inside the car.

Refrigerant Critical A chemical that helps cool the air inside the car by transferring heat.

Refrigerant Oil Critical An oil that lubricates the A/C system to keep the parts moving smoothly and prevent damage.

Refrigerant Pressure Sensor A sensor that monitors the pressure in the A/C system and helps regulate cooling performance.

Thermal Limiter Switch Critical A switch that stops the A/C system from overheating by cutting off power.

Convertible Top Cover Strut A strut that helps the convertible top cover open and close easily.

Convertible Top Hydraulic Pump Fluid Critical A fluid that powers the system to raise and lower the convertible top.

Sunroof Panel The glass or metal panel that slides open to let light and air into the cabin.

Auxiliary Cooling Fan Relay Critical Sends power to the extra cooling fan to keep the engine or A/C system cool when needed.

Bypass Hose Critical A hose that helps control the engine temperature by letting coolant bypass the radiator.

Condenser Fan Motor Relay Critical A relay that powers the fan cooling the A/C condenser.

Coolant / Antifreeze Critical Liquid that circulates through the engine to absorb and dissipate heat.

Coolant Additive A supplemental chemical treatment that boosts the protective and performance properties of existing coolant.

Coolant Air Bleeder Critical A valve that removes air from the cooling system to prevent overheating.

Coolant Bleeder Screw Critical A screw that allows air to be released from the cooling system to prevent overheating.

Coolant Fan Connector Critical Connects the fan that cools the radiator or A/C to the car’s electrical system.

Coolant Filler Neck Critical A part where you add coolant to the engine’s cooling system.

Coolant Hose Connector Critical A connector that joins two coolant hoses or connects a hose to a part of the cooling system.

Coolant Hose Flange Critical A set that helps connect coolant hoses to the engine or radiator.

Coolant Hose Flange Retainer Critical A part that keeps the coolant hose flange in place to stop leaks or hose movement.

Coolant Inlet Gasket Critical A gasket that seals the coolant inlet pipe to the engine to prevent leaks.

Coolant Level Sensor Critical A sensor that tells you if the engine’s coolant level is too low.

Coolant Outlet Flange Critical A flange that connects the coolant hose to the engine and directs coolant to the radiator.

Coolant Outlet O-Ring Critical A small rubber ring that seals the coolant outlet to stop leaks.

Coolant Pipe Gasket Critical A gasket that seals the coolant pipe to the engine to stop coolant leaks.

Coolant Recovery Tank Critical A tank that stores extra coolant when the engine gets hot and returns it when it cools.

Coolant Temperature Sending Unit Switch Connector Critical A connector that links the coolant temperature sender to the car’s electrical system.

Coolant Temperature Sensor Connector Critical A connector that links the coolant temperature sensor to the vehicle's electrical system.

Coolant Temperature Sensor/Sender/Switch Critical A sensor that tells the car's computer or gauge how hot the engine’s coolant is.

Coolant Thermostat Shim Critical A spacer that helps position the thermostat correctly to avoid leaks or malfunctions.

Coolant/Antifreeze Critical The fluid that keeps your engine from overheating or freezing.

Coolant/Heater Pipe Critical A pipe that carries coolant between the engine, heater core, and radiator.

Cooling Fan Blade Critical A fan blade that helps cool the engine by pulling air through the radiator.

Cooling Fan Clutch Critical A part that makes the engine fan turn on and off based on temperature.

Cooling Fan Controller/Module Critical A module that controls when the engine’s cooling fan turns on and off based on the temperature.

Cooling Fan Motor Critical A motor that powers the cooling fan to help cool the engine.

Cooling Fan Motor Relay Critical A relay that turns the cooling fan motor on and off based on engine temperature.

Cooling Fan Relay Connector Critical A connector that links the cooling fan relay to the car’s electrical system.

Cooling Fan Resistor Critical A part that controls how fast or slow the cooling fan runs.

Cooling Fan Switch Critical A switch that turns the cooling fan on and off based on how hot the engine gets.

Cooling Fan Switch Connector Critical A connector that links the cooling fan switch to the car’s electrical system.

Cooling System Cleaner / Flush A chemical cleaner that removes rust, scale, and mineral deposits from the cooling system before refilling with fresh coolant.

Cooling System Leak Detection Dye A fluorescent dye added to engine coolant to help locate cooling system leaks using ultraviolet light.

Cooling System Treatment A protective additive mixed into coolant to prevent rust, corrosion, and scaling in the cooling system.

Cooling/Condenser Fan/Assembly Critical A complete fan assembly that helps cool both the engine and air conditioning system.

Electrical Coolant Pump Critical An electric motor-driven pump that circulates coolant through the engine and radiator, common in hybrid and modern vehicles.

Engine Block Drain Plug Critical A plug that allows coolant to be drained from the engine block during maintenance.

Engine Heater A device that warms the engine coolant before starting to make cold weather starts easier.

Engine Heater Cord A cord that connects the engine heater to an external power source to pre-warm the engine.

EV / Hybrid Coolant Critical Specialized coolant for electric vehicle battery packs and hybrid system components.

Expansion / Freeze Plug Critical A plug that prevents the engine block from cracking when coolant expands in freezing conditions.

Grille Shutter Assembly Critical A part that opens and closes the grille to cool the engine and improve fuel efficiency.

Radiator Critical A part that cools the engine by transferring heat from the coolant to the air.

Radiator Cap The cap that seals your radiator and controls pressure inside it.

Radiator Cap Tester Adapter A tool used to test if the radiator cap is working properly.

Radiator Drain Petcock A valve that lets you drain coolant from the radiator.

Radiator Hose Critical A hose that carries coolant between the engine and radiator to cool the engine.

Radiator Mount Critical A part that holds the radiator in place and keeps it from vibrating.

Radiator Mounting Bracket Critical A bracket that holds the radiator securely in place.

Radiator Stop Leak A chemical additive that seals small radiator leaks by swelling seals and plugging small cracks or pinholes.

Thermostat Housing/Water Outlet Critical A housing that holds the thermostat and lets coolant flow through the engine to keep it from overheating.

Thermostat/Water Inlet Assembly Critical A part that controls how much coolant goes into the engine, helping regulate its temperature.

Thermostat/Water Outlet Gasket Critical A gasket that keeps coolant from leaking around the thermostat or water outlet.

Thermostats Critical A part that controls the flow of coolant to keep the engine at the right temperature.

Water Pump Critical A part that circulates coolant to keep the engine from overheating.

Water Pump Bolt Critical Bolts that hold the water pump in place, preventing coolant leaks.

Water Pump Gasket Critical A gasket that prevents coolant leaks where the water pump connects to the engine.

Water Pump Housing Critical A housing that encloses the water pump to help circulate coolant.

Water Pump Housing Gasket Critical A gasket that prevents coolant leaks where the water pump housing connects to the engine.

Water Pump Inlet Tube Critical A tube that carries coolant from the radiator to the water pump.

Water Pump O-Ring Critical An O-ring that seals the water pump’s inlet and outlet to prevent coolant leaks.

Water Pump Pulley Critical A pulley that helps drive the water pump using the engine’s belt.

Water Wetter/Coolant Enhancer A coolant additive that improves heat transfer and protects against corrosion and cavitation in the cooling system.

Cruise Control Release Switch A switch that turns off the cruise control when the brake or clutch pedal is pressed.

Cruise Control Switch A switch that turns on and adjusts the vehicle’s cruise control system.

Driver Assist System (ADAS) Camera A camera that helps the vehicle’s driver assistance systems like lane-keeping and collision warning.

Lane Departure System Camera A camera that watches the road and alerts you if you drift out of your lane.

Object Sensor Module A sensor that detects nearby objects and helps with parking or avoiding obstacles.

Parking Aid Sensor A sensor that detects objects near the car to help with parking.

Parking Aid Sensor Connector A connector that links the parking aid sensor to the car’s wiring system.

Rain Sensor A sensor that detects rain and turns on the windshield wipers automatically.

Axle Bolt Critical A bolt that holds the axle securely to the vehicle's suspension or differential.

Axle Differential Bearing Critical A bearing that helps the gears in the axle differential rotate smoothly without friction.

Axle Differential Race Critical A smooth surface that helps the differential bearing spin without friction.

Axle Flange Gasket Critical A gasket that stops differential fluid from leaking where the axle connects to the differential.

Axle Hub Mounting Bolt Critical A bolt that holds the axle hub in place, keeping the wheels attached to the vehicle.

Axle Shaft Critical A shaft that sends power from the differential to the wheels to make the car move.

Axle Shaft Bearing Critical A bearing that helps the axle shaft spin smoothly without friction.

Axle Shaft Repair Sleeve Critical A sleeve that fixes worn-out or damaged areas of the axle shaft to prevent leaks and restore function.

Axle Shaft Seal Critical A seal that stops oil from leaking out of the axle shaft housing.

Axle Spindle Seal Critical A seal that keeps dirt and water out of the spindle to keep it lubricated and working smoothly.

Center Support Bearing Critical A bearing that holds the driveshaft in place to reduce vibrations.

CV Axle Support Bearing Bracket Critical A bracket that holds the CV axle in place to prevent excessive movement.

CV Boot Critical A cover that protects the CV joint from dirt and moisture while keeping grease inside.

CV Half Shaft Critical A part that transfers power from the transmission to the wheels so they can turn.

CV Half Shaft Seal Critical A seal that prevents fluid from leaking where the CV half shaft connects to the transmission or differential.

CV Joint Grease The special grease packed inside a CV joint.

Differential Additive A treatment added to differential gear oil to protect the gears and bearings and reduce noise and wear.

Differential Carrier Bearing Critical A bearing that helps the differential rotate smoothly, reducing friction and wear.

Differential Carrier Gasket Critical A gasket that seals the differential carrier to stop oil leaks.

Differential Cover Critical A cover that protects the gears and fluid inside the differential from dirt and damage.

Differential Cover Gasket Critical A gasket that seals the differential cover to stop gear oil leaks.

Differential Crush Sleeve Critical A part that keeps the correct amount of pressure on the differential’s pinion bearings.

Differential Drain Plug A plug that allows you to drain oil from the differential for maintenance.

Differential End Yoke Critical A part that connects the driveshaft to the differential, helping transfer power to the wheels.

Differential Gear Critical A set of gears that help transfer power from the driveshaft to the wheels while letting them turn at different speeds.

Differential Hydraulic Clutch Control System Fluid Critical A fluid used to keep the hydraulic clutch in a limited-slip differential working smoothly.

Differential Oil Critical A lubricant that keeps the differential’s gears and bearings running smoothly.

Differential Ring & Pinion Critical A set of gears that transfer power from the driveshaft to the wheels through the differential.

Differential Ring Gear Bolt Critical A bolt that holds the ring gear to the differential carrier, keeping it in place.

Differential Shim Critical A spacer that helps align the gears in the differential for smooth operation.

Double Cardan CV Centering Yoke Critical A part that holds the double cardan joint in place for smooth and aligned operation.

Double Cardan CV H Yoke Critical A part that connects two universal joints in a double cardan joint for smooth power transfer.

Drive Shaft Bolt Critical A bolt that holds the driveshaft securely to the differential or transmission.

Drive Shaft Center Bearing Rubber Cushion Critical A rubber part that supports the driveshaft and reduces vibrations.

Drive Shaft Flex Joint Coupler/Damper Critical A part that absorbs vibrations and flexes to allow the driveshaft to move smoothly.

Drive Shaft Pinion Yoke Critical A part that connects the driveshaft to the differential and helps transfer power.

Drive Shaft Seal Critical A seal that stops oil from leaking where the driveshaft connects to the transmission or differential.

Drive Shaft Slip Yoke Critical A part that lets the driveshaft extend and contract to adjust for suspension movement.

Drive Shaft/Prop Shaft Critical A shaft that transfers power from the transmission to the wheels to make the vehicle move.

Four Wheel Drive Actuator Critical A part that allows the driver to switch between 2WD and 4WD.

Four Wheel Drive Indicator Light Switch A switch that turns on the 4WD indicator light when the system is engaged.

Limited-Slip Additive / Friction Modifier A specialized additive that enhances friction properties in limited-slip differentials to improve traction and performance.

Locking Hubs Critical A part that engages or disengages the front wheels for four-wheel drive.

Pinion Bearing Critical A bearing that helps the pinion gear rotate smoothly in the differential.

Pinion Race Critical A part that works with the pinion bearing to support the pinion gear and reduce friction.

Pinion Seal Critical A seal that keeps gear oil from leaking out of the differential around the pinion gear.

Spindle/Axle Nut Retainer Critical A part that keeps the axle nut from coming loose while driving.

Spindle/Axle Washer Critical A washer that helps the axle nut stay properly tightened.

Transfer Case Fluid Critical A fluid that lubricates the gears inside the transfer case, helping the 4WD system work properly.

Transfer Case Gasket Critical A gasket that keeps fluid from leaking out of the transfer case.

Transfer Case Input Shaft Repair Sleeve Critical A part that helps repair a damaged input shaft in the transfer case to prevent leaks.

Transfer Case Input Shaft Seal Critical A seal that keeps fluid from leaking around the input shaft in the transfer case.

Transfer Case Mount Critical A mount that supports the transfer case and reduces vibrations from the drivetrain.

Transfer Case Oil Pump Housing Seal Critical A seal that keeps oil from leaking out of the oil pump housing in the transfer case.

Transfer Case Output Shaft Seal Critical A seal that keeps fluid from leaking around the output shaft in the transfer case.

Transfer Case Shift Motor Critical A motor that allows the transfer case to shift between 2WD, 4WD, or different gear ranges.

Transmission Cleaner / Flush A strong solvent treatment that circulates through the transmission to dissolve varnish and flush out accumulated deposits and worn particles.

Transmission Conditioner An additive that improves transmission fluid performance and reduces wear in gears, clutches, and bearings.

U Joints - Axle Shaft Critical A joint that connects the axle shaft to the drivetrain, allowing it to rotate and move smoothly.

U Joints - Front Shaft Critical A joint that connects the front driveshaft to the transmission and axle, allowing it to rotate smoothly.

U Joints - Rear Shaft Critical A joint that connects the rear driveshaft to the transmission and axle, allowing it to rotate smoothly.

Universal Joint - Clamp/Strap Critical A clamp or strap that holds the universal joint in place, keeping it secure and aligned.

Universal Joint - U Bolt Critical A kit with U-bolts that secure the universal joint to the driveshaft or axle shaft.

Wheel Bearing Critical A bearing that helps the wheel spin smoothly and with less friction.

Wheel Bearing Grease The grease packed into a wheel bearing to keep it spinning smoothly.

Wheel Bearing Retainer Critical A part that holds the wheel bearing in place within the wheel hub.

Wheel Dust Cap Critical A cap that protects the wheel bearing from dirt and moisture.

Wheel Hub Bolt/Screw Critical A bolt or screw that holds the wheel hub in place, keeping the wheel stable.

Wheel Lug Bolt Critical A bolt that keeps the wheel securely fastened to the hub.

Wheel Race Critical A surface that helps the wheel bearing rotate smoothly, reducing friction.

Wheel Seal Critical A seal that keeps grease in and dirt out of the wheel bearing assembly.

Air Pump A pump that helps burn off leftover fuel in the exhaust to reduce pollution.

Air Pump Check Valve Stops exhaust gases from getting into the air pump and damaging it.

Air Pump Mount Holds the air pump securely in place so it works correctly.

Air Pump Relay Connector Connects the air pump relay to the vehicle's electrical system to control emissions.

Canister Purge Valve/Solenoid A valve that helps control fuel vapors in the emissions system for cleaner emissions.

Canister Vent Solenoid Connector Connects the canister vent solenoid to the car’s electrical system.

Carbon/Vapor Canister Filter A filter that keeps fuel vapors from escaping into the atmosphere.

Catalytic Converter Critical A device that helps reduce harmful exhaust emissions for cleaner air.

Catalytic Converter Gasket Critical A gasket that seals the catalytic converter to the exhaust system to stop leaks.

DEF Treatment An additive for diesel exhaust fluid (DEF) that optimizes the selective catalytic reduction (SCR) system to reduce emissions.

Diesel Exhaust Fluid (DEF) Critical A fluid used to lower harmful emissions in diesel vehicles by converting pollutants into harmless gases.

Diesel Exhaust Fluid (DEF) Heater Critical A heater that keeps DEF fluid from freezing so it can continue to work in cold weather.

Diesel Exhaust Fluid (DEF) Pump Critical A pump that moves DEF fluid to the exhaust system to reduce emissions.

Distributor Thermal Vacuum Switch Critical A switch that controls when the distributor advances timing based on the engine’s temperature.

Diverter Valve Critical A valve that helps reduce emissions by sending air into the exhaust.

EGR Cooler A heat exchanger that cools exhaust gas recirculation fluid before it re-enters the engine to reduce emissions.

EGR Cooler Gasket Critical A set of gaskets that seals the EGR cooler to prevent gas leaks.

EGR Line Critical A pipe that carries exhaust gases to the EGR valve for emission reduction.

EGR Line/Tube Gasket Critical A gasket that seals the EGR line to prevent exhaust leaks.

EGR Pressure Feedback Sensor Critical A sensor that monitors the pressure in the EGR system and tells the car’s computer.

EGR Valve Critical A valve that sends exhaust gases back into the engine to reduce emissions.

EGR Valve Control Solenoid Critical A solenoid that controls when the EGR valve opens or closes.

EGR Valve Gasket Critical A gasket that seals the EGR valve to prevent exhaust leaks.

EGR Valve Position Sensor Critical A sensor that tells the car’s computer how far the EGR valve is open or closed.

Emission Check Valve Critical A valve that keeps exhaust gases from flowing backward in the emissions system.

Emissions System Cleaner A fuel-based additive that cleans and maintains the entire emissions control system to reduce pollutants and improve engine efficiency.

Evaporative System Leak Detection Pump Connector A connector that links the evaporative system leak detection pump to the car’s electrical system.

Secondary Air Injection Check Valve Critical A valve that keeps exhaust gases from flowing back into the air injection system.

Secondary Air Injection Relay Critical A relay that controls the secondary air injection system to reduce emissions.

Vapor Canister Critical A canister that stores fuel vapors, preventing them from being released into the air.

Vapor Canister Purge Switch Connector A connector that links the vapor canister purge switch to the electrical system.

Vapor Canister Purge Valve Hose Critical A hose that carries fuel vapors from the vapor canister to the purge valve.

Vapor Canister Shut-Off Valve Critical A valve that prevents fuel vapor loss by controlling the flow of vapors from the vapor canister.

Vapor Canister Vent Valve Critical A valve that releases excess pressure from the vapor canister, preventing fuel vapor buildup.

Accelerator Cable Critical The cable that makes the engine go faster when you press the gas pedal.

Accelerator Pedal Module Critical Detects how far you press the gas pedal and sends signals to make the engine go faster.

Accelerator Pedal Position Sensor Critical Measures how much you press the gas pedal to control how fast the engine should go.

Accelerator Pedal Position Sensor Connector Critical Connects the sensor that measures how far you press the gas pedal to the car’s electrical system.

Air Charge/Manifold Temperature Sensor Critical Tells the engine computer how hot or cold the air going into the engine is, to help it run efficiently.

Air Charge/Manifold Temperature Sensor Connector Critical Connects the sensor that measures the temperature of the air going into the engine to the electrical system.

Air Cleaner Mounting Gasket Critical A seal that prevents dirty air from getting into the engine.

Air Cleaner/Cold Air Intake Critical Filters the air going into the engine and helps the engine run better by bringing in colder air.

Air Control Valve Relay Critical Sends power to the valve that controls how much air enters the engine.

Air Filter Seal Critical A seal that keeps dirt from getting around the air filter and into the engine.

Air Intake Hose Critical A hose that moves air from the air filter to the engine.

Auto Choke/Shutdown Relay Critical Sends power to control the automatic choke or engine shutdown system for better cold starts or engine shutdown.

Auxiliary Shaft Seal Critical A seal that stops oil from leaking around the auxiliary shaft in the engine.

Balance Shaft Belt A belt that connects the balance shaft to the engine to help reduce vibrations.

Balance Shaft Chain A chain that drives the balance shaft to make the engine run more smoothly by reducing vibrations.

Balance Shaft Repair Sleeve A sleeve that repairs worn-out areas of the balance shaft to keep the engine running smoothly.

Balance Shaft Seal Critical A seal that stops oil from leaking around the balance shaft in the engine.

Barometric Pressure Sensor Critical Measures air pressure to help the engine control how much fuel it needs to run properly.

Barometric Pressure Sensor Connector Critical Connects the air pressure sensor to the car’s electrical system so it can send data to the engine.

Belt - V-Shaped Critical A belt that helps run engine accessories like the alternator and power steering.

Belt Tensioner Damper Critical A part that keeps the belt tight and prevents it from vibrating too much.

Belt Tensioner Pulley Bolt Cover Critical A cover that keeps dirt and water off the bolt that holds the belt tensioner pulley.

Belt Tensioner Spring Critical A spring that keeps the belt tight so it doesn’t slip off the engine pulleys.

Breather Element/Filter Critical A filter that keeps dirt and dust out of the engine’s crankcase.

Camshaft Critical A part that controls when the engine’s valves open and close to let air in and exhaust out.

Camshaft Adjuster Magnet Critical An electrical part that helps control the camshaft’s position for better engine performance.

Camshaft Bearings Critical Bearings that help the camshaft rotate smoothly without friction inside the engine.

Camshaft Plug Critical A plug that stops oil from leaking out of the camshaft bore.

Camshaft Position Sensor Critical A sensor that tells the engine computer where the camshaft is for better timing and fuel delivery.

Camshaft Position Sensor Connector Critical Connects the camshaft position sensor to the car’s electrical system.

Camshaft Repair Sleeve Critical A sleeve that fixes worn-out areas of the camshaft to prevent oil leaks or timing issues.

Camshaft Seal Critical A seal that stops oil from leaking around the camshaft in the engine.

Carburetor Cleaner A powerful solvent spray that dissolves varnish and carbon deposits from carburetors and fuel system components.

Chip/Power Programmer Critical A device that adjusts the car’s engine or transmission settings for better performance.

Connecting Rod Bearings Critical Bearings that help the connecting rods move smoothly on the crankshaft inside the engine.

Conversion/Lower Gasket Set Critical A set of gaskets used to prevent leaks in the lower half of the engine.

Crankcase Breather Hose Critical A hose that helps release pressure and fumes from the engine’s crankcase.

Crankcase Breather Hose Connector Critical A connector that attaches the breather hose to the engine or intake.

Crankshaft Critical A part inside the engine that turns the pistons' up-and-down motion into rotational motion for the transmission.

Crankshaft Position/Angle Sensor Critical A sensor that tells the car’s computer where the crankshaft is for proper engine timing.

Crankshaft Pulley Critical A pulley that helps power engine components like the alternator and A/C by turning belts.

Crankshaft Repair Sleeve Critical A sleeve that repairs worn-out sections of the crankshaft to stop oil leaks.

Crankshaft Seal Critical A seal that stops oil from leaking out around the crankshaft.

Crankshaft Sensor Connector Critical A connector that links the crankshaft position sensor to the car’s electrical system.

Crankshaft Thrust Washer Critical A part that stops the crankshaft from moving forward or backward inside the engine.

Cylinder Head Critical A part that holds the engine’s combustion chambers and controls air, fuel, and exhaust flow.

Cylinder Head Bolt Critical A bolt that holds the cylinder head securely to the engine block.

Cylinder Head Bolt Washer Critical A set of washers that ensure proper sealing and force distribution between the cylinder head and engine block.

Cylinder Head Plug Critical A plug that seals holes in the cylinder head to stop leaks.

Cylinder Sleeve Critical A part that lines the engine cylinder to protect it from wear and damage.

Drive Belt Idler Assembly Critical A part that helps keep the drive belt tight and aligned for smooth accessory operation.

Engine Air Box Clip Critical A clip that holds the air filter box closed to keep unfiltered air from entering the engine.

Engine Air Distribution Hose Critical A hose that carries air from the air filter to the engine’s intake manifold.

Engine Air Filter Keeps dirt and dust out of your engine's air intake.

Engine Assembly Lube Lubricant used when building or rebuilding an engine, before it's first started.

Engine Auxiliary Shaft Bearing Critical A set of bearings that support the auxiliary shaft for smooth operation.

Engine Auxiliary Shaft Repair Sleeve Critical A sleeve that repairs worn-out sections of the auxiliary shaft to stop oil leaks.

Engine Block-Long Critical The main structure of the engine that holds all internal parts like pistons and crankshaft.

Engine Circular Plug Critical A plug that seals holes in the engine block to stop oil or coolant leaks.

Engine Cleaner A foaming or spray cleaner used to remove grease, oil, and carbon deposits from external engine surfaces and components.

Engine Control Unit Critical The computer that manages engine timing, fuel injection, emissions, and other critical engine functions.

Engine Cover A protective plastic or composite panel that covers the top of the engine, hiding components and improving engine bay appearance.

Engine Crankcase Breather Connector Critical A connector that links the crankcase breather hose to the air intake system.

Engine Degreaser A solvent-based cleaning product that removes grease, oil buildup, and grime from engine surfaces.

Engine Flush A strong solvent treatment that circulates through the engine to dissolve and remove accumulated sludge and varnish deposits.

Engine Gasket Set Critical A set that includes all the gaskets needed to seal the engine components during a rebuild.

Engine Mount Critical A part that holds the engine in place and absorbs vibrations.

Engine Mount Bolt Critical A bolt that holds the engine mount to the vehicle frame.

Engine Mount Bracket Critical A bracket that holds the engine mount and keeps the engine aligned.

Engine Mount Bushing Critical A bushing that absorbs engine vibrations to keep the ride smooth.

Engine Oil Critical The oil that lubricates and protects your engine.

Engine Oil Additive A chemical concentrate mixed into engine oil to enhance its protective and cleaning properties.

Engine Oil Cooler Critical A part that cools the engine oil to keep the engine from overheating.

Engine Oil Cooler Bracket Critical A bracket that holds the oil cooler in place.

Engine Oil Cooler Hose Critical A hose that carries engine oil to and from the oil cooler.

Engine Oil Cooler Line Connector Critical A connector that links the oil cooler hose to the engine or cooler.

Engine Oil Cooler Line Connector Seal Critical A seal that stops oil leaks at the connection between the cooler hose and engine.

Engine Oil Cooler Seal Critical A seal that prevents oil leaks at the oil cooler.

Engine Oil Dipstick/Tube Critical A stick used to check the engine oil level, along with the tube it fits into.

Engine Oil Drain Plug Gasket Critical A gasket that prevents oil leaks at the oil drain plug.

Engine Oil Filler Cap Gasket Critical A gasket that seals the oil filler cap to stop oil leaks.

Engine Oil Filter Adapter Critical A part that connects the oil filter to the engine block.

Engine Oil Filter Adapter Seal Critical A seal that stops oil leaks at the oil filter adapter.

Engine Oil Filter Bypass Valve Critical A valve that lets oil bypass the filter if it’s clogged.

Engine Oil Filter Cover/Housing Plug Critical A plug that seals the oil filter housing to stop oil leaks.

Engine Oil Filter Gasket Critical A gasket that seals the oil filter to stop oil leaks.

Engine Oil Filter Housing Critical A housing that holds the oil filter and directs oil through it for filtration.

Engine Oil Filter Housing Mount Critical A mount that holds the oil filter housing to the engine block.

Engine Oil Filter Housing O-Ring/Seal Critical A seal that stops oil leaks at the oil filter housing.

Engine Oil Galley Plug Critical A plug that seals the oil passages in the engine block to stop oil leaks.

Engine Oil Level Sensor Connector A connector that links the oil level sensor to the car’s electrical system.

Engine Oil Level Sensor Gasket Critical A gasket that seals the oil level sensor to stop oil leaks.

Engine Oil Pan Critical A part at the bottom of the engine that holds oil.

Engine Oil Pan Gasket Critical A gasket that seals the oil pan to stop oil leaks.

Engine Oil Pressure Indicator Relay Critical A relay that turns on the oil pressure warning light if the oil pressure is too low.

Engine Oil Pump Critical A pump that circulates oil through the engine to keep it lubricated.

Engine Oil Pump Cover Gasket Critical A gasket that seals the oil pump cover to stop oil leaks.

Engine Oil Pump Drain Plug Critical A plug that lets you drain oil from the oil pump for maintenance.

Engine Oil Pump Gasket Critical A gasket that seals the oil pump to the engine block to stop oil leaks.

Engine Oil Pump Repair Sleeve Critical A sleeve that repairs worn-out parts of the oil pump to stop leaks and maintain pressure.

Engine Oil Separator Critical A part that separates oil from the air in the engine crankcase to reduce oil consumption.

Engine Oil Strainer Critical A part that filters out large particles from the oil before it gets to the pump.

Engine Oil Tank Level Sender A sensor that tells you how much oil is in the tank.

Engine Torque Damper Critical A part that reduces engine vibrations when the engine produces torque.

Engine/Powertrain Control Module Critical The car’s computer that controls the engine and transmission based on sensor data.

Exhaust Valve Critical A valve that lets exhaust gases leave the engine after combustion.

Fan Pulley Bracket Critical A bracket that holds the fan pulley in place and keeps the belt tight.

Glow Plug Critical A part that heats the engine air to help start a diesel engine.

Glow Plug Controller Critical A part that controls when the glow plugs turn on and off in a diesel engine.

Glow Plug Relay Critical A relay that controls how much power the glow plugs get in a diesel engine.

Harmonic Balancer Critical A part that reduces vibrations in the engine to prevent damage.

Harmonic Balancer Repair Sleeve Critical A sleeve that fixes a worn harmonic balancer to stop leaks and restore performance.

Head Gasket Critical A gasket that seals the engine to prevent oil and coolant leaks.

Head Gasket / Block Sealer Critical A chemical treatment that seals small head gasket or block leaks by filling microscopic gaps and cracks.

Idle Air Control Valve Connector Critical A connector that links the idle air control valve to the car’s electrical system.

Idle Air Control Valve/Motor Critical A valve that controls the engine’s idle speed by regulating how much air enters the engine.

Idle Speed Control Motor Connector Critical A connector that links the idle speed control motor to the car’s electrical system.

Idle Stop Solenoid Critical A solenoid that stops fuel from reaching the engine when it’s idling to prevent it from running after shutoff.

Idler Pulley Critical A pulley that helps guide and support the serpentine belt in the engine.

Intake / Combustion Chamber Cleaner A fuel system additive that dissolves carbon deposits from intake valves and combustion chambers to restore engine performance.

Intake Manifold Critical A part that directs air and fuel into the engine’s cylinders.

Intake Manifold Actuator Repair Parts Critical A set of parts to fix the actuator in the intake manifold that controls airflow.

Intake Manifold Bolt Critical A set of bolts used to attach the intake manifold to the engine.

Intake Manifold Cover A cover that protects the intake manifold from dirt and reduces engine noise.

Intake Manifold Gasket Critical A gasket that seals the intake manifold to the engine to prevent leaks.

Intake Manifold Runner Control Critical A part that controls how air flows through the intake manifold to improve performance.

Intake Manifold Valve Actuator Critical An actuator that opens and closes valves in the intake manifold to improve airflow.

Intake Valve Critical A valve that lets air and fuel into the engine’s combustion chamber.

Knock (Detonation) Sensor Critical A sensor that detects engine knocking and helps prevent damage by adjusting the ignition.

Knock (Detonation) Sensor Connector Critical A connector that links the knock sensor to the car’s electrical system.

Lifter Guide Critical A part that keeps the engine’s lifters aligned and running smoothly.

Lifter/Tappet Critical A part that moves the engine’s valves in sync with the camshaft.

Main Bearings Critical Bearings that help the crankshaft rotate smoothly in the engine.

Manifold Absolute Pressure (MAP) Sensor Critical A sensor that measures air pressure in the engine to adjust fuel delivery.

Manifold Absolute Pressure (MAP) Sensor Connector Critical A connector that links the MAP sensor to the vehicle’s wiring system.

Manifold Bypass Gasket Critical A gasket that seals the bypass valve in the manifold to prevent leaks.

Mass Air Flow Connector Critical A connector that links the mass air flow sensor to the car’s wiring system.

Mass Air Flow Sensor Cleaner A precision solvent spray that gently removes contaminants from the mass air flow (MAF) sensor without damaging its delicate wire or film.

Mass Air Flow Sensor/Meter Critical A sensor that measures how much air is entering the engine to adjust fuel delivery.

Oil Catch Can A container that captures oil vapors and blow-by gases from the engine crankcase before they enter the intake system.

Oil Cooler Line Retainer Critical A part that holds the oil cooler lines securely in place to prevent leaks or movement.

Oil Drain Plug Tool A tool used to remove and install the oil drain plug during oil changes.

Oil Filler/Breather Cap Critical A cap that seals the oil filler neck and allows gases to vent from the engine.

Oil Filter Critical Keeps your engine oil clean by trapping dirt and debris.

Oil Filter Adapter Critical A part that makes it easier to mount the oil filter in different locations or orientations.

Oil Leak Detection Dye A fluorescent dye added to engine oil to help locate oil leaks using ultraviolet light.

Oil Level Sensor Critical A sensor that monitors how much oil is in the engine and alerts you if it gets too low.

Oil Pressure Sensor/Switch Critical A sensor that monitors oil pressure and alerts you if it’s too low.

Oil Pressure Switch Connector Critical A connector that links the oil pressure sensor to the car’s wiring system.

Oil Pump Pickup Tube/Screen Critical A part that picks up oil from the oil pan and filters out debris before it reaches the oil pump.

Oil Pump Seal Critical A seal that prevents oil from leaking out of the oil pump.

Oil Pump Shaft Critical A shaft that drives the oil pump using power from the engine.

Oil Pump Solenoid Critical A solenoid that controls oil flow in engines with variable oil pressure.

Oil Stabilizer An additive that increases oil viscosity and film strength to protect engine components under high heat and pressure.

Oil Stop Leak An additive that swells engine seals and gaskets to reduce or stop minor oil leaks.

Oil Temperature Sensor Critical A sensor that monitors the temperature of the engine oil and alerts you if it’s too hot.

Oil Temperature Switch Critical A switch that triggers a warning light or cooling system if the oil gets too hot.

Oil Treatment A multi-purpose additive blend that cleans, protects, and conditions engine oil for improved performance.

Parts Cleaner / Degreaser A heavy-duty solvent that dissolves grease, oil, and dirt from engine parts and components during disassembly and rebuild.

PCV Valve Critical A valve that regulates gases flowing between the engine and intake manifold for better performance and emissions.

PCV Valve Diaphragm Critical A part that helps control the flow of gases through the PCV valve.

PCV Valve Elbow Critical A connector that links the PCV valve to the engine’s intake manifold.

PCV Valve Grommet Critical A grommet that seals the PCV valve in place to prevent leaks.

PCV Valve Hose Nipple Critical A connector that links the PCV valve hose to the intake manifold.

PCV Valve O-Ring Critical An O-ring that seals the PCV valve in place to prevent leaks.

PCV Valve Tubing Critical Tubing that carries gases from the engine to the PCV valve for ventilation.

Piston Rings Critical Rings that seal the piston to the cylinder to prevent leaks and improve engine performance.

Plenum Gasket Critical A set of gaskets that seal the intake plenum to the engine to prevent leaks.

Ported Vacuum Switch Critical A switch that controls vacuum flow to engine parts based on engine temperature.

Power Valve Critical A valve that controls fuel flow in carbureted engines to improve performance and efficiency.

Powertrain Control Module Relay Critical A relay that controls power to the PCM, which manages the engine and transmission systems.

Pre-Heater Hose A hose that helps the engine warm up faster in cold weather.

Pulley-Tensioner Critical A pulley that keeps the serpentine belt tight and properly tensioned.

Pushrod Critical A rod that helps open and close the engine's valves by transferring motion from the camshaft to the rocker arms.

Pushrod Cover Gasket Critical A gasket that seals the pushrod cover and prevents oil leaks from the engine.

Pushrod Tube Seal Gasket Critical A gasket that seals the pushrod tubes to prevent oil leaks.

Rear Main Seal Critical A set of seals that prevent oil from leaking out of the engine’s crankshaft.

Rear Main Seal Repair A specialized treatment designed to condition and restore the rear main engine seal to stop or reduce leaking.

Rocker Arm Critical A part that helps open and close the engine valves to let air, fuel, and exhaust flow in and out.

Rocker Arm Pivot Critical A part that allows the rocker arm to pivot and helps open and close the engine valves smoothly.

Rocker Arm Shaft Critical A shaft that holds the rocker arms in place and allows them to pivot smoothly.

Rocker Arm Stud Critical A stud that holds the rocker arms in place on the engine cylinder head.

Semicircular Plug Gasket Critical A gasket that prevents oil from leaking around the semicircular plug in the engine.

Serpentine Belt Critical The belt that powers your alternator, A/C, and other accessories.

Spark Plug Tube Seal Critical A seal that prevents oil from leaking around the spark plug tube.

Starting Fluid A volatile flammable spray that aids engine starting in cold weather or when fuel ignition is difficult.

Supercharger A device that forces more air into the engine, making it more powerful.

Tensioner Assembly-Automatic Critical A part that keeps the drive belt tight, preventing it from slipping.

Throttle Body Critical A part that controls how much air enters the engine to regulate its speed and power.

Throttle Body Cleaner A specialized solvent that removes carbon and varnish deposits from throttle bodies and idle air control passages.

Throttle Body Heater Pipe Critical A pipe that carries coolant to keep the throttle body from freezing in cold weather.

Throttle Body Mounting Gasket Critical A gasket that keeps air or fuel from leaking between the throttle body and intake manifold.

Throttle Control Motor Connector Critical A connector that links the throttle control motor to the vehicle’s wiring system.

Throttle Position Sensor Critical A sensor that monitors the throttle valve's position and helps control engine performance.

Throttle Position Sensor Connector Critical A connector that links the throttle position sensor to the vehicle’s wiring system.

Timing Belt Critical A belt that keeps the engine’s valves and pistons in sync, preventing engine damage.

Timing Belt Tensioner Critical A part that keeps the timing belt tight to prevent it from slipping.

Timing Belt Tensioner Pulley Critical A pulley that keeps the timing belt aligned and running smoothly.

Timing Chain Critical A chain that keeps the engine’s valves and pistons in sync, preventing engine damage.

Timing Chain Guide Critical A guide that keeps the timing chain aligned and running smoothly.

Timing Chain Set Critical A kit with parts to replace the timing chain and related components.

Timing Chain Tensioner Critical A part that keeps the timing chain tight to prevent it from slipping or skipping.

Timing Chain Tensioner Gasket Critical A gasket that keeps oil from leaking around the timing chain tensioner.

Timing Cover Critical A cover that protects the timing chain or belt from debris and ensures it stays lubricated.

Timing Cover Gasket Critical A set of gaskets that keeps oil from leaking around the timing cover.

Timing Cover Seal Critical A seal that keeps oil from leaking around the timing cover.

Timing Damper Critical A part that reduces vibrations in the timing system, keeping it running smoothly.

Timing Gear Critical A set of gears that keep the engine’s crankshaft and camshaft in sync.

Timing Gear Oiler Critical A part that keeps the timing gears lubricated to prevent wear.

Timing Gear/Sprocket Critical A gear or sprocket that helps transfer motion between the engine’s crankshaft and camshaft.

Timing Idler Critical A part that helps guide and tension the timing belt or chain, keeping it aligned and tight.

Torque Strut Bushing Critical A bushing that reduces vibrations between the torque strut and the vehicle frame.

Torque Strut Mount Critical A mount that supports the torque strut and helps control engine and transmission movement.

Turbocharger Critical A part that increases engine power by forcing more air into the engine.

Turbocharger Actuator Critical A part that controls how much pressure the turbocharger creates.

Turbocharger Boost Control Valve Critical A valve that controls how much boost pressure the turbocharger creates.

Turbocharger Boost Sensor Critical A sensor that measures how much pressure the turbocharger is creating.

Turbocharger Boost/Wastegate Solenoid Critical A solenoid that helps control how much pressure the turbocharger creates.

Turbocharger Coolant Line Critical A line that carries coolant to the turbocharger to keep it cool.

Turbocharger Drain Gasket Critical A gasket that prevents oil leaks from the turbocharger’s drain.

Turbocharger Gasket Critical A gasket that prevents exhaust leaks where the turbocharger connects to the exhaust manifold.

Turbocharger Inlet Gasket Critical A gasket that prevents air leaks where the turbocharger connects to the intake system.

Turbocharger Intercooler Hose Critical A hose that carries compressed air from the turbocharger to the intercooler, cooling the air before it enters the engine.

Turbocharger Oil Line Critical A line that carries oil to the turbocharger to keep it lubricated.

Turbocharger Oil Line Gasket Critical A gasket that prevents oil leaks where the turbocharger oil line connects.

Turbocharger Outlet Gasket Critical A gasket that prevents exhaust leaks where the turbocharger connects to the exhaust system.

Upper Cylinder Lubricant A fuel-based lubricant additive that protects the upper engine cylinders, valves, and fuel injectors from wear and deposit buildup.

Vacuum Control Valve Critical A valve that controls the vacuum pressure in the engine to regulate different systems.

Vacuum Hose Critical A hose that carries vacuum pressure between engine parts, controlling different systems.

Vacuum Hose Connector Critical A connector that links vacuum hoses to engine parts, preventing vacuum leaks.

Vacuum Pump Critical A pump that creates vacuum pressure for systems like the brakes and emissions controls.

Vacuum Pump Gasket Critical A gasket that prevents vacuum or fluid leaks from the vacuum pump.

Vacuum Reservoir Critical A part that stores vacuum pressure for systems like the brakes and emissions controls.

Valley Pan Cover Critical A cover that protects the valley area of the engine from debris and leaks.

Valve Cover Critical A cover that protects the valve train and prevents oil leaks.

Valve Cover Bolt/Screw Critical Bolts or screws that hold the valve cover in place, preventing oil leaks.

Valve Cover Gasket Critical A set of gaskets that prevent oil leaks from the valve cover.

Valve Cover Grommet Gasket Critical A gasket that seals around the valve cover bolts to prevent oil leaks.

Valve Cover Load Spreader Critical A part that distributes pressure evenly across the valve cover to prevent oil leaks.

Valve Keeper Critical A part that holds the valve spring in place, keeping the valve secure.

Valve Seal Treatment An additive that cleans and conditions valve seals to reduce oil consumption and smoking from valve guide leakage.

Valve Spring Retainer Critical A part that holds the valve spring in place, allowing the valve to operate properly.

Valve Stem Seal Critical A seal that prevents oil from leaking around the valve stem and into the combustion chamber.

Valve/Rocker Spring Critical A spring that opens and closes the valves in the engine, keeping the combustion process smooth.

Variable Valve Timing (VVT) Eccentric Shaft Sensor Critical A sensor that tracks the position of the eccentric shaft to control the engine's valve timing.

Variable Valve Timing (VVT) Solenoid Critical A solenoid that controls oil flow to adjust the engine's valve timing.

Variable Valve Timing (VVT) Solenoid Connector Critical A connector that links the VVT solenoid to the car's electrical system.

Variable Valve Timing (VVT) Solenoid Filter Critical A filter that prevents debris from entering the VVT solenoid.

Variable Valve Timing (VVT) Solenoid Gasket Critical A gasket that prevents oil leaks from the VVT solenoid.

Belt Conditioner A liquid dressing that restores flexibility and grip to worn serpentine belts and pulleys.

Catalytic Converter Cleaner A fuel additive that removes carbon buildup inside the catalytic converter to restore emissions control and engine performance.

Exhaust Bolt/Stud Critical A bolt or stud that holds exhaust parts together to stop leaks.

Exhaust Bolt/Stud & Spring Critical A bolt and spring set that holds exhaust parts together while allowing some flexibility.

Exhaust Clamp (Vehicle Specific) Critical A clamp that holds exhaust parts like pipes and mufflers in place to stop leaks.

Exhaust Flange Bolt/Nut Critical A bolt or nut that holds the exhaust flanges together to stop exhaust leaks.

Exhaust Hanger Critical A part that holds the exhaust system to the car’s body and reduces noise.

Exhaust Insulator Critical A part that cushions the exhaust system and absorbs vibrations.

Exhaust Manifold Critical A part that collects exhaust gases from the engine and sends them to the exhaust system.

Exhaust Manifold Bolt & Spring Critical Bolts and springs that hold the exhaust manifold to the engine and allow for movement.

Exhaust Manifold Gasket Critical A gasket that seals the exhaust manifold to the engine and stops leaks.

Exhaust Manifold Hardware Critical A kit that includes the hardware needed to install the exhaust manifold.

Exhaust Manifold Outlet Flange Gasket Critical A gasket that seals the connection between the exhaust manifold and exhaust pipe.

Exhaust Manifold With Catalytic Converter A combined part that collects exhaust gases and filters them to reduce emissions.

Exhaust Muffler A part that makes the exhaust quieter by reducing noise from the engine.

Exhaust Pipe Critical A pipe that carries exhaust gases from the engine to the exhaust system.

Exhaust Pipe Connector Gasket Critical A gasket that seals the connection between exhaust pipes to stop leaks.

Exhaust Resonator A part that reduces unwanted sounds from the exhaust system to improve sound quality.

Exhaust Spring Critical A spring that helps the exhaust system move and expand with heat.

Exhaust System Critical A system that carries exhaust gases from the engine and reduces noise and emissions.

Exhaust Tail Pipe The end of the exhaust system that releases gases out of the car.

Exhaust Temperature Sensor Critical A sensor that tells the car’s computer how hot the exhaust gases are.

Exhaust Tip The visible metal pipe at the end of your exhaust system where gases exit the vehicle.

Header Gasket Critical A gasket that seals the exhaust header to the engine to stop leaks.

Headers Critical Performance exhaust pipes that help the engine run more efficiently by reducing backpressure.

Heat Shield Fastener Critical A fastener that holds the heat shield in place to prevent heat damage to other parts.

NOx (Nitrogen Oxide) Sensor A sensor that measures harmful nitrogen oxide levels in the exhaust to reduce emissions.

Oxygen Sensor Cable Critical A cable that carries data from the oxygen sensor to the car’s computer.

Oxygen Sensor Connector Critical A connector that links the oxygen sensor to the car’s electrical system.

Oxygen Sensor Relay Critical A relay that controls power to the oxygen sensors for proper operation.

Oxygen/Air-Fuel Ratio Sensor Critical A sensor that measures oxygen in the exhaust to adjust fuel and air intake for better combustion.

Bumper Cover Retainer A part that keeps the bumper cover attached to the vehicle’s body.

Car Cover A protective cover that shields the car from weather and dirt.

Car Wash Soap Soap made for washing a car's paint safely.

Carnauba Wax A natural wax that adds shine and light protection to paint.

Ceramic Coating A long-lasting coating that bonds to paint for durable protection and shine.

Clay Bar Clay used to pull embedded contaminants off paint before waxing.

Cowl Panel Retainer A retainer that keeps the cowl panel secure and prevents movement or noise.

Door The door panel itself, not the handle or lock — the whole door.

Door Hinge Critical A part that connects the door to the vehicle and lets it open and close.

Door Hinge Parts Critical A set of parts that keep the door hinge working properly.

Door Latch Assembly Critical A mechanism that locks, unlocks, and holds the door securely closed.

Door Latch Cable Critical A cable that connects the interior door handle to the door latch mechanism to open the door.

Door Lock Actuator Critical A motor that locks and unlocks the car doors electronically.

Door Lock Clip Critical A clip that keeps the door lock cylinder in place inside the door.

Door Lock Cylinder Critical A set that includes everything needed to replace a damaged door lock.

Door Lock Knobs Critical A knob inside the vehicle that lets you manually lock or unlock the doors.

Door Pillar Critical A structural vertical support beam between or adjacent to vehicle doors that provides frame rigidity and occupant protection.

Door Weatherstrip/Seal The rubber seal around your door that keeps water and wind out.

Emblem A decorative badge or logo mounted on the exterior of the vehicle that identifies the manufacturer or model.

Exterior Door Handle Critical A handle on the outside of the car used to open the door.

Exterior Mirror Critical A mirror that helps you see behind and to the side of the vehicle.

Exterior Molding Clip A clip that holds exterior trim pieces to the car.

Fender The body panel covering the front wheel.

Front Bumper The panel at the very front of your car that takes the first hit in a collision.

Front Grill The panel with the openings at the very front of your car, above or around the bumper.

Hood The panel that covers your engine when closed.

Hood Insulation Pad Clip A clip that holds the insulation pad under the hood to reduce noise and protect the engine.

Hood Latch Assembly Critical A latch that locks the hood in place to keep it closed but allows it to open when needed.

Hood Prop Rod Retainer A retainer that holds the hood prop rod in place when the hood is down.

Hood Protector/Bug Deflector A shield that protects the front of the hood from bugs and debris while driving.

Hood Release Cable Critical A cable that lets you open the hood from inside the car.

Hood Stop A part that cushions the hood when it’s closed to stop it from rattling.

Jack Pad A pad that protects the vehicle when using a jack to lift it.

License Plate Bracket A bracket that holds the license plate in place.

Lift Support A part that holds up the liftgate, trunk, or hood without needing to hold it yourself.

Liftgate Harness Connector A connector that links the liftgate’s electrical parts to the vehicle’s wiring system.

Liftgate/Tailgate Actuator A motor that opens or closes the liftgate or tailgate automatically.

Liftgate/Tailgate Handle A handle that lets you manually open or close the liftgate or tailgate.

Mirror Switch Critical A switch that controls the position of the exterior mirrors.

Mud Flap A flap that keeps mud and debris from hitting the vehicle’s body.

Nerf/Step Bar A bar that makes it easier to get in and out of taller vehicles.

Paint Protection Film (Clear Bra) Clear film applied to your car to protect the paint from chips and scratches.

Paint Sealant A synthetic product that protects paint longer than wax does.

Quarter Glass The small, usually fixed window behind the rear door.

Quarter Panel The rear side body panel covering the back wheel.

Rear Bumper The panel at the very back of your car that takes the hit if something backs into it.

Rear Windshield/Back Glass The rear window/glass of the car.

Rocker Panel The panel that runs along the bottom of your car below the doors.

Rocker Panel Clip A clip that holds the rocker panels in place on the vehicle's body.

Roof Panel The outer metal or composite covering that forms the top of your vehicle's cabin.

Rubbing/Polishing Compound A mildly abrasive product used to buff out light scratches and restore shine.

Running Board A step mounted along the side of the vehicle to make getting in and out easier.

Sealant A chemical applied to seal leaks or gaps in the vehicle.

Side Window Air Deflector A part that redirects airflow away from the side windows to reduce wind noise and allow ventilation.

Sideskirt A protective or aerodynamic panel that runs along the lower side of the vehicle between the front and rear wheels.

Silicone Grease Grease used to condition rubber seals and weatherstripping.

Splash Shield Clip/Retainer A clip or retainer that keeps the splash shield securely attached to protect the engine from dirt and water.

Sunroof Cable The cable that connects the sunroof motor to the sliding panel.

Sunroof Drain Tube The tube that drains water away from your sunroof so it doesn't leak inside.

Sunroof Motor A motor that opens and closes the sunroof.

Sunroof Seal/Weatherstrip The rubber seal around the sunroof.

Sunroof Track The track the sunroof glass slides along.

Sunroof Track Lubricant Lubricant made specifically for sunroof tracks.

Sunroof Wind Deflector The small flap that pops up at the front of the sunroof opening to cut down on wind noise.

Sunroof/Moonroof Glass The glass panel in a sunroof or moonroof.

Tailgate Cable A cable that holds the tailgate in place when it's open, preventing it from dropping.

Tailgate Relay A relay that controls the power to the tailgate components, such as the lock or window motor.

Tailgate Window Motor A motor that raises and lowers the tailgate window.

Tonneau Cover A cover that protects the truck bed or cargo area from weather and theft.

Touch-Up Paint A small amount of paint used to cover scratches and chips on the vehicle.

Towing Mirror Critical A larger mirror that helps you see past a trailer or load when towing.

Trim Restorer Product used to restore faded plastic trim back to black.

Truck Bed Mounting Hardware Bolts and brackets that hold the truck bed to the frame, keeping it stable and aligned.

Trunk Lid Latch A latch that keeps the trunk closed and secured.

Trunk Lid Pull Down Motor A motor that automatically pulls the trunk lid down to close it.

Trunk Lid Release Relay A relay that controls the electrical system for the trunk release mechanism.

Trunk Lid/Tailgate Panel The panel that opens to give you access to your trunk or cargo area.

Trunk Lock Actuator Motor A motor that locks or unlocks the trunk remotely.

Trunk Lock Cylinder A lock that lets you open or lock the trunk using a key.

Trunk Release Switch A switch that allows you to open the trunk from inside the vehicle.

Trunk/Cargo Area Light Bulb A bulb that lights up the trunk or cargo area.

Wheel Well Liner The plastic liner inside your wheel well that protects it from debris.

Windshield Critical The front glass windshield of your car.

Windshield Cowl The panel at the bottom of your windshield that covers the wipers.

Grill Guard A protective metal or plastic frame mounted over the front grille to shield the radiator and engine components from road debris and minor impacts.

Headlight Guard A protective cover or cage that shields the headlight lens from damage, dirt, and debris.

Roof Rack A frame-mounted carrier system on your vehicle's roof for safely transporting cargo like luggage, bikes, or skis.

Roof Rack Cross Bar A horizontal bar that spans across roof rack side rails to provide a load-bearing surface for carrying cargo on the roof.

Roof Rack Rail A longitudinal bar that runs along the roof of your vehicle, forming the base for mounting a roof rack or cargo carrier.

Rust Converter A chemical treatment that converts existing surface rust into a stable compound and prevents new rust formation.

Tail Light Guard A protective cage or cover that shields your tail light lens from impact and debris.

Undercoating / Rust Preventative A thick, waxy protective coating sprayed on undercarriage and body panels to prevent rust and corrosion.

Body Mounts Critical Rubber parts that help reduce noise and vibrations between the car body and frame.

Grease A thick lubricant used to protect and reduce friction in joints, bearings, and suspension components.

Hydraulic Fluid General-purpose hydraulic fluid used in various vehicle systems.

Carburetor Critical A device that mixes air and fuel for older car engines.

Carburetor Accelerator Pump Critical A small pump that helps the car accelerate by delivering extra fuel when needed.

Carburetor Accelerator Pump Diaphragm Critical A part inside the accelerator pump that controls fuel flow and prevents leaks.

Carburetor Float Critical A part that helps control the amount of fuel in the carburetor to maintain performance.

Carburetor Kit Critical A set of parts used to repair or rebuild a carburetor.

Carburetor Mounting Gasket Critical A gasket that seals the carburetor to the intake manifold to stop leaks.

Carburetor Needle And Seat Critical A part that helps control fuel flow into the carburetor for better performance.

Choke Pull Off Critical A part that lets the choke open once the engine warms up to prevent flooding.

Choke Thermostat Critical A thermostat that controls the choke to ensure the right fuel mixture when starting the engine cold.

Choke Thermostat Connector Critical Connects the choke thermostat to the car’s electrical system so it works properly.

Choke Tube Gasket Critical A gasket that seals the choke tube to prevent leaks for better engine performance.

Diesel Anti-Gel An additive that prevents diesel fuel from gelling and waxing at low temperatures.

Diesel Cetane Booster An additive that increases the cetane rating of diesel fuel to improve ignition quality and engine performance.

Diesel Fuel Injector Driver Module Critical A module that controls how and when diesel fuel injectors spray fuel into the engine.

Diesel Fuel Injector Pump Critical A pump that provides high-pressure fuel to the injectors so the engine can run efficiently.

Diesel Fuel Treatment A fuel additive formulated for diesel engines to improve combustion, clean injectors, and provide winter protection.

Direct Injection High Pressure Fuel Pump Critical A pump that delivers fuel at high pressure directly into the engine's combustion chamber.

EFI Fuel Accumulator Critical A part that keeps fuel pressure steady in the fuel injection system.

EFI Main Relay Critical A relay that controls power to the fuel injection system.

EFI Pressure Damper Critical A part that helps keep fuel pressure steady by reducing pressure spikes.

EFI Pressure Sensor Critical A sensor that tells the car’s computer how much pressure is in the fuel system.

Ethanol Treatment An additive that protects fuel system components from ethanol-related corrosion and separation.

Fuel Cap The cap that seals your gas tank.

Fuel Cut-Off Relay Critical A relay that stops fuel from reaching the engine in an emergency or system failure.

Fuel Door A door that protects the fuel cap and filler neck, allowing easy refueling access.

Fuel EVAP Control System Lines Pipes that carry fuel vapors to the emission control system.

Fuel Filler Door Lock Actuator A part that locks and unlocks the fuel door electronically.

Fuel Filler Hose Critical A hose that transfers fuel from the fuel filler to the tank.

Fuel Filler Neck Seal Critical A seal that stops fuel leaks between the fuel filler and tank.

Fuel Filter Critical A filter that removes dirt and debris from the fuel to protect the engine.

Fuel Filter And Pressure Regulator Assembly Critical A part that filters fuel and controls fuel pressure to ensure proper engine operation.

Fuel Filter Cap Critical A cap that holds the fuel filter in place and prevents leaks.

Fuel Filter O-Ring Critical A rubber ring that seals the fuel filter to stop leaks.

Fuel Injection Harness Connector Critical A connector that links the fuel injectors to the car’s electrical system.

Fuel Injection Idle Air Control Valve Gasket Critical A gasket that stops air leaks at the idle air control valve.

Fuel Injector Critical A part that sprays fuel into the engine to make it run efficiently.

Fuel Injector Cleaner A fuel additive that cleans deposits from fuel injectors to restore proper spray pattern and engine performance.

Fuel Injector Connector Critical A connector that links the fuel injector to the car’s electrical system.

Fuel Injector Line Critical A line that carries fuel to the injectors to power the engine.

Fuel Injector Seal / O-Ring Critical A kit that includes seals to prevent leaks at the fuel injectors.

Fuel Line Critical A line that carries fuel from the tank to the engine.

Fuel Line Connector Critical A connector that links fuel lines to other parts of the fuel system.

Fuel Line Retainer Critical A part that holds fuel lines in place and prevents them from moving.

Fuel Pressure Regulator Critical A part that controls the fuel pressure to keep the engine running smoothly.

Fuel Pressure Sensor Cover Critical A cover that protects the fuel pressure sensor from getting damaged.

Fuel Pump Critical A pump that moves fuel from the tank to the engine to keep it running.

Fuel Pump Cut-Off Switch Critical A switch that stops fuel from reaching the engine in an emergency.

Fuel Pump Driver Module Critical A part that controls how much fuel the pump sends to the engine.

Fuel Pump Gasket Critical A gasket that stops fuel leaks at the connection between the fuel pump and engine or tank.

Fuel Pump Harness Connector Critical A connector that links the fuel pump to the car’s electrical system.

Fuel Pump Mounting Bracket Critical A bracket that holds the fuel pump in place and keeps it from moving.

Fuel Pump O-Ring Critical A rubber ring that seals the fuel pump to stop leaks.

Fuel Pump Pressure Switch Critical A switch that monitors how much fuel pressure the pump is providing.

Fuel Pump Pulsator Critical A part that smooths out the pressure from the fuel pump to keep the engine running smoothly.

Fuel Pump Relay Critical A relay that turns the fuel pump on and off.

Fuel Pump Relay Connector Critical A connector that links the fuel pump relay to the car’s electrical system.

Fuel Pump Resistor Critical A resistor that controls how much power the fuel pump gets.

Fuel Pump Spacer Critical A part that keeps the fuel pump aligned properly when installed.

Fuel Pump Strainer Critical A filter that keeps large dirt and debris out of the fuel pump.

Fuel Pump Tank Seal Critical A seal that prevents fuel leaks where the pump connects to the tank.

Fuel Pump Wiring Harness Critical A set of wires that connects the fuel pump to the car’s electrical system.

Fuel Sending Unit/Assembly A part that tells the fuel gauge how much fuel is in the tank.

Fuel Stabilizer An additive that prevents fuel degradation and gum formation during long-term storage.

Fuel System Cleaner A comprehensive fuel system additive that cleans injectors, valves, carburetors, and fuel lines of carbon buildup.

Fuel System Moisture Remover A fuel additive that absorbs and removes water from your fuel tank to prevent corrosion and fuel system damage.

Fuel Tank Critical A tank that holds the fuel for the engine.

Fuel Tank Filler Neck Critical A part that carries fuel from the filler cap to the fuel tank.

Fuel Tank Pressure Sensor Critical A sensor that monitors the fuel tank pressure to detect leaks.

Fuel Tank Pressure Sensor Connector Critical A connector that links the fuel tank pressure sensor to the car’s electrical system.

Fuel Tank Selector Switch A switch that lets the driver choose which fuel tank to use in dual-tank vehicles.

Fuel Tank Selector Valve Critical A valve that directs fuel from the chosen tank to the engine.

Fuel Tank Selector Valve Connector Critical A connector that links the fuel tank selector valve to the car’s electrical system.

Fuel Tank Sending Unit Gasket/O-Ring Critical A seal that stops fuel leaks where the fuel sending unit connects to the tank.

Fuel Tank Strap Critical A strap that holds the fuel tank to the car’s frame.

Fuel Tank Vent Valve Critical A valve that lets fuel vapors leave the tank and go to the emission system.

Fuel Tank/Sending Unit Lock Ring Critical A ring that holds the fuel sending unit to the tank securely.

Fuel Treatment A general-purpose fuel additive that improves combustion, cleans injectors, and protects fuel system components.

Fuel Vapor Leak Detection Pump A pump that checks the fuel system for leaks by pressurizing it.

Fuel Water Remover An additive that absorbs and safely removes water from the fuel tank and system.

Gasoline Treatment A fuel additive formulated specifically for gasoline engines to clean and protect fuel system components.

Octane Booster An additive that increases the octane rating of gasoline to prevent engine knock and improve performance.

Throttle Body Injector Filter Critical A filter that keeps dirt and debris out of the fuel injectors in the throttle body.

Glass Cleaner Cleaner made for windows and windshields.

Window Handle The lever or knob you pull or turn to open and close a vehicle window manually.

Battery Management System Critical An electronic control unit that monitors and regulates the health, charging, and output of a hybrid or electric vehicle's battery pack.

Hybrid Battery Cooling Fan Critical A fan that cools the hybrid or electric vehicle battery to keep it from overheating.

Hybrid/EV Battery Coolant Critical The fluid that keeps a hybrid or electric car's battery at a safe temperature.

Hybrid/EV Battery Pack Critical A large battery that powers the electric motor in a hybrid or electric vehicle.

Hybrid/EV Battery Pack Disconnect Critical A part that lets you disconnect the hybrid or electric vehicle battery for safety or maintenance.

Hybrid/EV Coolant Pump Critical A pump that keeps the hybrid or electric vehicle battery cool.

Ballast Resistor Critical A resistor that keeps the ignition coil from overheating by limiting the current.

Coil Boot Critical A part that connects the ignition coil to the spark plug to deliver electricity.

Distributor Critical A device that distributes electricity from the ignition coil to the spark plugs to fire them.

Distributor Brush Critical A small part that helps pass electricity from the ignition coil to the spark plugs.

Distributor Cap Critical A cap that holds the distributor rotor and connects to the spark plug wires to send spark to each cylinder.

Distributor Cap Adapter Critical An adapter that lets you use a different type of distributor cap.

Distributor Cap Cover Critical A cover that protects the distributor cap from water and dirt.

Distributor Clamp Critical A clamp that keeps the distributor from moving or coming loose.

Distributor Connector Critical A connector that links the distributor to the vehicle’s electrical system.

Distributor Housing Seal Critical A kit that provides seals to prevent oil leaks around the distributor.

Distributor Mounting Gasket Critical A gasket that seals the distributor to the engine block to stop oil leaks.

Distributor O-Ring Critical A small ring that seals the distributor to the engine block to prevent leaks.

Distributor Pickup Critical A sensor that tells the ignition system when to fire the spark plugs.

Distributor Primary Lead Wire Critical A wire that connects the ignition coil to the distributor to pass electricity for spark.

Distributor Reluctor Critical A part that helps generate the electrical signal needed to time the spark plugs correctly.

Distributor Rotor Critical A part that spins inside the distributor to send spark to each spark plug in the right order.

Distributor Vacuum Advance Critical A part that adjusts the timing of the spark based on how hard the engine is working.

Ignition Breaker Points Critical A part that controls the timing of the spark that ignites the fuel in older vehicles.

Ignition Coil Critical A part that makes the spark needed to ignite the fuel in the engine.

Ignition Coil Adapter A part that lets you install a different type of ignition coil in your car.

Ignition Coil Connector Critical A connector that links the ignition coil to the car’s electrical system.

Ignition Coil Ground Strap Critical A strap that grounds the ignition coil to complete the electrical circuit.

Ignition Coil Housing Critical A casing that protects the ignition coil from heat and debris.

Ignition Coil Lead Wire Critical A wire that carries the spark from the ignition coil to the spark plugs or distributor.

Ignition Coil Mounting Bracket Critical A bracket that holds the ignition coil in place.

Ignition Condenser Critical A small part that stores energy to reduce electrical arcing in older ignition systems.

Ignition Control Module Critical An electronic control unit that manages the timing and firing of your engine's spark plugs.

Ignition Control Module Connector Critical A connector that links the ignition control module to the car’s electrical system.

Ignition Harness Critical A set of wires that connects the ignition system to the vehicle’s computer.

Ignition Lock Cylinder/Assembly Critical The part where you insert the key to start the vehicle.

Ignition Lock Housing Critical The housing that holds the ignition lock cylinder in place in the steering column.

Ignition Module/Control Unit/Ignitor Critical A part that controls the timing and strength of the spark for the engine.

Ignition Relay Critical A relay that controls when the ignition system gets power.

Ignition Switch Critical A switch that activates the ignition system when the key is turned.

Ignition Switch Connector Critical A connector that links the ignition switch to the car’s electrical system.

Single Lead Spark Plug/Coil Wire Critical A wire that carries electrical current from the ignition coil to the spark plug to ignite the engine’s fuel.

Spark Plug Critical Creates the spark that ignites fuel inside the engine.

Spark Plug Wire Critical A wire that carries electrical current from the ignition coil to the spark plug to ignite the engine’s fuel.

Speedometer Cable A cable that connects the transmission to the speedometer, allowing the speed to be displayed.

Speedometer Calibrator A device that adjusts the speedometer to show the correct speed when changes are made to tires or gears.

Voltage Regulator-Instrument Cluster A part that controls how much voltage is sent to the car's dashboard instruments.

Armrest The padded rest for your arm on the door or center console.

Ashtray A small receptacle mounted in the vehicle interior for disposing of cigarette ash and butts.

Brake Pedal Pad A rubber cover that makes the brake pedal easier to press without slipping.

Carpet The carpet covering the floor of your car's interior.

Center Console The console between the front seats with the cupholders and storage.

Cigarette Lighter A push-button heating element in the dashboard used to light cigarettes or start fires.

Cigarette Lighter Bezel A part that holds the cigarette lighter in place in the dashboard for a finished look.

Clock Light Bulb A small bulb that lights up the clock on the dashboard so you can see it.

Clutch Pedal Pad A rubber cover that makes the clutch pedal easier to press without slipping.

Console Lid Catch Assembly A latch that keeps the center console lid closed.

Console Wiring Harness Connector Connects the console's electrical parts to the car's main electrical system.

Courtesy Light Switch A switch that turns the interior lights on when the car doors are opened.

Cup Holder A holder inside the vehicle that keeps cups or bottles from falling over.

Dashboard/Dash Panel The big panel in front of the driver and passenger with the gauges and vents.

Dome Light Lens A cover that protects the dome light bulb and spreads light evenly in the car's interior.

Door Ajar Warning Switch A switch that alerts you when a car door is not fully closed.

Door Glass (Window) The window glass in a car door that rolls up and down.

Door Handle Interior Critical A handle inside the car that lets you open the door.

Door Interior Trim Panel Retainer Clips that keep the interior door panel attached to the door frame.

Door Jamb Switch A switch that turns on interior lights and door warning lights when the door is opened.

Door Jamb Switch Connector A connector that links the door jamb switch to the car’s electrical system.

Door Panel (Interior Trim) The interior panel on the inside of your car door.

Floor Mat The mats that protect your car's carpet from dirt and wear.

Glove Box The storage compartment in the dashboard, typically on the passenger side, used for holding vehicle documents and small items.

Headliner The fabric covering the inside of your car's roof.

Heated Seat Switch A switch that controls the heating element in your vehicle's seat, allowing you to turn seat warmth on and off or adjust its level.

Hood Ajar/Contact Switch A switch that tells the car if the hood is open or closed and sends a signal to the dashboard.

Interior Panel Clip A clip that holds interior panels securely in place.

Interior/Vinyl Protectant Product used to clean and protect your dashboard and interior plastic.

Leather Conditioner Product used to clean and condition leather seats.

Odor Eliminator/Ozone Treatment Solution Product used to remove persistent odors from the interior.

Panel Trim Retainer Assortment A set of clips that hold interior or exterior trim pieces securely in place.

Power Outlet Cover A cover that protects the car’s power outlet from dirt and debris when not in use.

Seat The seat itself — cushion, frame, and upholstery.

Seat Bolster/Lumbar Air Bladder An inflatable air chamber inside a seat that provides adjustable lumbar or side support for the driver or passenger.

Seat Track The metal rail system that allows a vehicle seat to slide forward and backward for adjustment.

Sun Visor The flip-down shade above the windshield that blocks sun glare.

Window Crank Handle A handle that lets you manually roll the windows up or down.

Window Guide A guide that helps the window move up and down smoothly and in alignment.

Window Knob The manual crank handle or knob used to roll car windows up and down.

Window Regulator A part that moves the window up and down, either manually or with power.

Window Regulator And Motor Assembly A combination of parts that move the window up and down using power.

Window Regulator Rivet A rivet that holds the window regulator in place.

Window Regulator Roller A roller that helps the window regulator move smoothly.

Window Regulator Sliding Pivot A part that connects the window to the regulator, helping it move smoothly.

Window Regulator Tape A tape that helps the window and regulator move together smoothly.

Window Regulator Track Lubricant Lubricant for the track a power window slides on.

Ash Tray Light Bulb A light that makes the ashtray or other small areas in the car easier to see at night.

Backup Light Bulb A light that turns on when the vehicle is put into reverse to help others see it.

Backup Light Connector Connects the backup light to the car’s wiring system so it turns on in reverse.

Backup Light Relay Sends power to the backup lights when the car is put into reverse.

Backup Light Switch A switch that turns on the backup lights when the vehicle goes into reverse.

Backup Light Switch Connector Connects the switch that controls the backup lights to the car’s electrical system.

Backup Socket A socket that holds the backup light bulb and connects it to the car’s wiring.

Brake Light Bulb Critical A light that turns on when you press the brakes to let other drivers know you’re stopping.

Brake Light Relay Connector Critical Connects the relay that powers the brake lights to the car’s electrical system.

Center High Mount Stop Light Assembly Critical An extra brake light at the back of the car to help other drivers see you stop.

Cornering Light Bulb A light bulb that helps illuminate the side of the vehicle when making turns.

Cornering Light Socket A socket that holds the cornering light bulb and connects it to the car’s electrical system.

Cornering Light Socket Connector A connector that links the cornering light socket to the car’s electrical system.

Cornering Light Wiring Harness A harness that carries power to the cornering lights from the car’s electrical system.

Daytime Running Light Bulb A bulb that helps keep the vehicle visible to others during the day.

Daytime Running Light Connector A connector that connects the daytime running light bulb to the car’s electrical system.

Daytime Running Light Relay A relay that controls the power to the daytime running lights.

Dome Light Bulb The bulb in your overhead interior light.

Exterior Light Bulb Check Relay A relay that monitors the car’s exterior lights and alerts you if a bulb is out.

Exterior Light Bulb Socket A socket that holds exterior bulbs and connects them to the car’s electrical system.

Flasher Connector A connector that links the turn signal relay to the car’s electrical system.

Flasher-Hazard Warning/Turn Signal A relay that controls the blinking of turn signals and hazard lights.

Floor Console Compartment Light Bulb A light bulb that lights up the floor console compartment.

Fog Light Bulb The bulb inside your fog light housing.

Fog Light Connector A connector that links the fog light to the car’s electrical system.

Fog Light Lens/Assembly The cover that protects the fog light bulb and helps focus the light.

Fog Light Relay A relay that turns the fog lights on and off.

Fog Light Relay Connector A connector that links the fog light relay to the car’s electrical system.

Fog Light Socket A socket that holds the fog light bulb and connects it to the electrical system.

Fog/Driving Light Wiring Harness The wiring that connects the fog or driving lights to the car’s electrical system.

Forward Light Harness Connector A connector that links the headlights and front lights to the car’s electrical system.

Glove Box Light Bulb A small light bulb that lights up the glove box.

Hazard Warning Relay A relay that makes the hazard lights blink on and off.

Hazard Warning Switch A switch that turns the hazard lights on and off.

Hazard Warning Switch Connector A connector that links the hazard warning switch to the car’s electrical system.

Headlight Actuator/Motor Critical A motor that moves pop-up headlights or adjusts their aim.

Headlight Adjusting Screw A screw that adjusts the aim of the headlights to ensure they’re pointing in the right direction.

Headlight Bucket Critical A housing that holds and protects the headlight assembly.

Headlight Bulb Critical The bulb that lights the road in front of your car.

Headlight Bulb Retainer Critical A part that holds the headlight bulb securely in place.

Headlight Connector Critical A connector that links the headlight to the car’s electrical system.

Headlight Cover A cover that protects the headlight lens from getting damaged.

Headlight Dimmer Switch Critical A switch that lets you control the brightness of the headlights (low or high beams).

Headlight Dimmer Switch Connector Critical A connector that links the headlight dimmer switch to the car’s electrical system.

Headlight Lens/Assembly Critical The assembly that houses the headlight bulbs and focuses the light on the road.

Headlight Level Sensor A sensor that automatically adjusts the headlight beam angle based on the car’s load.

Headlight Relay Critical A relay that controls when the headlights turn on and off.

Headlight Seal A seal that keeps water and debris out of the headlight assembly.

Headlight Switch Critical A switch that turns the headlights on and off.

Headlight Switch Connector Critical A connector that links the headlight switch to the car’s electrical system.

Headlight Washer Pump A pump that sprays fluid to clean the headlight lenses.

High Beam Indicator Light Bulb A small bulb that lights up to indicate the high beams are on.

High Intensity Discharge Headlight Igniter Critical A part that ignites the HID headlight bulb to provide brighter light.

High Mount Brake Light Bulb Critical A bulb that lights up the third brake light to make braking more visible to others.

High Mounted Brake Light Socket Critical A socket that holds the high mount brake light bulb and connects it to the car’s wiring system.

Instrument Cluster Light Socket A socket that holds the bulbs that light up the dashboard gauges.

Instrument Panel Dimmer Switch A switch that controls how bright the dashboard lights are.

Instrument Panel Light Bulb A small bulb that lights up the dashboard gauges at night.

Interior Door Light Bulb A bulb that lights up the interior of the vehicle when the door is opened.

License Plate Light Bulb A bulb that lights up the license plate at night.

License Plate Light Connector A connector that links the license plate light to the car’s electrical system.

License Plate Light Lens A lens that protects the license plate light bulb from damage.

License Plate Light Socket A socket that holds the license plate light bulb in place.

Map Light Bulb A small light bulb that lights up the interior for reading or visibility.

Operating Light Connector Critical A connector that links the external lights to the vehicle’s electrical system.

Parking & Turn Signal Light Connector Critical A connector that links the parking and turn signal lights to the car’s electrical system.

Parking Light Bulb A bulb that lights up the parking lights at night or in low-light conditions.

Parking Light Socket A socket that holds the parking light bulb in place and connects it to the car’s wiring system.

Parking/Turn Signal/Stop Light Connector Critical A connector that links the parking, turn signal, and stop lights to the car’s electrical system.

Reflector Housing/Assembly Critical A housing that holds the headlight or taillight bulb and directs the light onto the road.

Roof Marker/Identification Light Assembly A light assembly mounted on the roof of the vehicle to improve visibility.

Seat Belt Light Bulb A small light that alerts you when the seat belt is not fastened.

Side Marker Bulb The small bulb that lights up the side marker light on your fender.

Side Marker Light Assembly The small light housing on the side of your fender.

Side Marker Socket A socket that holds the side marker light bulb in place and connects it to the wiring system.

Step/Courtesy Light Bulb A light bulb that lights up the step or interior area when you open the door.

Stoplight Socket Critical A socket that holds the stoplight bulb in place and connects it to the wiring system.

Sun Visor Bulb A light bulb that illuminates the vanity mirror on the sun visor.

Tail Light Converter A device that makes sure the vehicle’s tail lights work properly with a trailer’s lights.

Tail Light Harness Critical A harness that connects the tail light assembly to the vehicle’s wiring system.

Tail Light Lens/Assembly Critical A part that covers and protects the tail light bulb, helping distribute light properly.

Tail Light Relay Critical A relay that makes sure the tail lights get power when needed.

Tail Light Socket Critical A socket that holds the tail light bulb in place and connects it to the wiring system.

Taillight Bulb The bulb that lights up at the back of your car.

Turn Signal Bulb The bulb that flashes when you use your turn signal.

Turn Signal Directional Cam A part that activates the turn signal mechanism when the lever is moved.

Turn Signal Lens/Assembly A lens that covers the turn signal bulb and directs light to indicate turns.

Turn Signal Light Socket A socket that holds the turn signal bulb and connects it to the vehicle’s wiring.

Turn Signal Relay A relay that controls the flashing of the turn signal lights.

Turn Signal Switch A switch that lets the driver activate the turn signals by moving a lever.

Turn Signal Switch Connector A connector that links the turn signal switch to the vehicle’s electrical system.

Under Hood Light Bulb A bulb that lights up the area under the hood for better visibility during maintenance.

Work Light Bulb A light bulb that illuminates work areas like the engine bay during repairs.

Xenon Headlight Control Module Critical A module that controls the power and function of xenon headlights.

Anti-Seize Compound Compound applied to bolt threads to keep them from seizing or rusting in place.

Dry Lubricant A particulate lubricant (typically PTFE or graphite) that reduces friction without leaving oily residue.

Penetrating Oil A thin, fast-penetrating oil that loosens frozen bolts, fasteners, and corroded metal parts.

Rust Penetrant A penetrating spray that dissolves rust and corrosion to free stuck parts and protect bare metal.

Silicone Lubricant A waterproof spray lubricant used for weatherstripping, door hinges, locks, and rubber components.

White Lithium Grease All-purpose grease for hinges, latches, and sliding parts.

Door Mirror Drive Motor A motor that lets you adjust the position of the side mirror.

Door Mirror Illumination Light Bulb A light that illuminates the area near the side mirror for better visibility.

Rearview Mirror The mirror mounted inside your windshield that lets you see traffic behind your vehicle.

Seat Belt Buckle Critical The metal clasp mechanism that holds the seat belt webbing securely across your lap and torso.

Seat Belt/Harness & Components Critical A belt or harness that holds you securely in place in your seat to protect you in a crash.

Anti-Theft Connector Connects the car’s anti-theft components like alarms to the electrical system.

Anti-Theft Control Module Controls the car’s anti-theft system, sounding alarms or immobilizing the engine if needed.

Anti-Theft Relay Sends power to the alarms and other parts of the car’s anti-theft system.

Collision Alarm Relay A relay that powers the collision sensor in the car's alarm system.

Key Critical The physical key used to unlock and start your vehicle.

Key Fob A small wireless remote control that locks, unlocks, and sometimes starts your vehicle from a distance.

Key Fob Battery The small battery inside your key fob.

Keyless Entry/Alarm Remote Transmitter A remote that lets you lock, unlock, or activate the alarm on your vehicle from a distance.

Center Link Critical A bar that connects both sides of the steering system so the front wheels turn together.

Control Shaft Seal Critical A seal that prevents fluid from leaking around the control shaft in the steering or transmission system.

Drag Link Critical A part that links the steering box to the tie rods, allowing you to steer the vehicle.

Idler Arm Critical A part that helps support the steering linkage, making steering easier.

Idler Arm Bushing Critical A bushing that cushions the idler arm to reduce wear and make steering smoother.

Pitman Arm Critical A part that helps transfer steering input from the steering wheel to the wheels.

Power Steering Cap Critical A cap that seals the power steering fluid reservoir to prevent leaks.

Power Steering Conditioner A chemical treatment that restores and maintains power steering fluid to improve steering responsiveness and reduce noise.

Power Steering Cooler Critical A part that cools the power steering fluid to keep it from overheating.

Power Steering Cooler Line Critical A line that carries power steering fluid to and from the cooler to keep it cool.

Power Steering Fluid The fluid that makes your steering wheel easier to turn.

Power Steering Fluid Reservoir Critical A reservoir that holds power steering fluid for use in the steering system.

Power Steering Pressure Switch Critical A switch that monitors power steering pressure and helps adjust engine idle to prevent stalling.

Power Steering Pump Critical A pump that supplies pressure to make steering easier, especially at low speeds.

Power Steering Pump Pulley Critical A pulley that drives the power steering pump using a belt connected to the engine.

Power Steering Relay Critical A relay that controls power to the electric power steering system or pump.

Power Steering Reservoir Cap Seal Critical A seal that keeps power steering fluid from leaking out of the reservoir.

Power Steering Reservoir Gasket Critical A gasket that seals the connection between the power steering reservoir and pump.

Power Steering Stop Leak A chemical additive that seals small power steering fluid leaks by conditioning seals and hose connections.

Rack & Pinion Bellows Critical A set of protective boots that cover the rack and pinion steering system to keep it clean.

Rack & Pinion Complete Unit Critical A part that helps turn the wheels when you move the steering wheel.

Rack & Pinion Mount Bushings Critical Bushings that help reduce noise and vibration from the rack and pinion steering system.

Steering Coupling Assembly Critical A part that connects the steering column to the steering system for smoother input.

Steering Damper A hydraulic or mechanical device that reduces steering wheel vibration and shimmy, especially at highway speeds.

Steering Filter Critical A filter that keeps dirt and debris out of the power steering fluid.

Steering Gear Box Critical A box that helps turn the front wheels when you move the steering wheel.

Steering Gear Pitman Shaft Seal Critical A seal that keeps power steering fluid from leaking around the pitman shaft in the steering box.

Steering Hose Assembly-Pressure Line Critical A hose that carries high-pressure fluid from the power steering pump to the steering gear.

Steering Hose Assembly-Return Line Critical A hose that returns low-pressure fluid from the steering gear to the power steering pump or reservoir.

Steering Hose-Reservoir Line Critical A hose that supplies fluid from the power steering reservoir to the system.

Steering King Pin Critical A pin that allows the wheels to pivot and turn smoothly.

Steering Pump Shaft Seal Critical A seal that keeps power steering fluid from leaking around the pump shaft.

Steering Shaft Critical A shaft that connects the steering wheel to the steering system, allowing you to control the vehicle.

Steering Stabilizer/Damper Critical A part that helps reduce vibrations in the steering system, making steering smoother and more stable.

Steering Wheel Critical The wheel the driver holds and turns to steer the car.

Steering Wheel Sensor A sensor that monitors the position of the steering wheel and helps with vehicle stability or control systems.

Tie Rod Bushing Critical A bushing that reduces friction and noise in the steering system.

Tie Rod End Critical A part that connects the steering system to the wheels, allowing them to turn when you steer.

Tie Rod End Adjusting Sleeve Critical A sleeve that adjusts the tie rod length to keep the steering system properly aligned.

Active Suspension Relay Sends power to the suspension system so it can adjust the car's height or stiffness.

Air Suspension Compressor Pumps air into the air suspension system to control the car’s height and smoothness.

Air Suspension Spring An air-filled spring that helps the car ride smoothly and adjust its height.

Alignment Ball Joint Critical Connects the steering and suspension to keep the wheels aligned and allow smooth turning.

Alignment Cam Bolt Critical A bolt that adjusts how the tires are angled to keep the vehicle properly aligned.

Alignment Control Arm Critical Connects the wheels to the car's frame and allows for adjustments in the suspension system.

Alignment Control Arm & Ball Joint Assembly Critical A combination of parts that connects the suspension to the steering for smooth operation.

Alignment Control Arm Bolt Critical Holds the control arm in place so the suspension can be aligned properly.

Alignment Control Arm Bushing Critical A rubber part that cushions the connection between the suspension and the car's frame.

Alignment Shim Critical Thin metal pieces used to adjust how the suspension is aligned for better handling.

Alignment Thrust Plate Critical A part used to adjust the rear wheels so they align properly with the front wheels.

Ball Joint Critical A joint that lets the front wheels turn smoothly while keeping the suspension in line.

Camber/Caster Alignment Bushings Critical A part that helps adjust the angle of the wheels for better alignment.

Chassis/Leaf Spring Bushing Critical A bushing that cushions the leaf spring suspension to reduce vibrations and improve ride comfort.

Coil Spring Critical A spring that supports the car and absorbs bumps for a smoother ride.

Coil Spring Insulator/Seat Critical A rubber pad that sits between the coil spring and the car to reduce noise and vibration.

Coil Spring Shim Critical A spacer used to raise the car or fix sagging by adjusting the coil spring height.

Coilover Critical A combined shock absorber and coil spring assembly that replaces a vehicle's stock suspension to allow ride height and damping adjustment.

Control Arm Critical A part that connects the wheels to the car's frame, allowing for movement and control.

Control Arm & Ball Joint Assembly Critical A combined part that includes the control arm and ball joint for easier replacement.

Control Arm Bumper Critical A rubber stop that prevents the control arm from moving too far and damaging the suspension.

Control Arm Bushing Critical A rubber part that cushions the control arm to reduce vibrations and noise.

Control Arm Shaft Critical A kit that supports the control arm, allowing it to move and pivot properly.

Hub Assembly Critical A part that holds the wheel in place and lets it rotate smoothly.

Lateral Arm Critical A part that helps control side-to-side movement of the wheels for better handling.

Lateral Link And Ball Joint Assembly Critical A part that connects the suspension to the vehicle for better control and stability.

Radius Arm Bushing Critical A bushing that reduces vibration and noise from the suspension.

Shackle Critical A part that connects the leaf spring to the vehicle frame, allowing suspension movement.

Shock Absorber Bellows Critical A cover that protects the shock absorber from dirt and debris, extending its life.

Shock Mount Insulator Critical A part that helps reduce vibration and noise from the shock absorber.

Shock/Strut Critical A part that helps absorb bumps and vibrations, making the ride smoother and more stable.

Shock/Strut Mount Critical A mount that holds the shock or strut in place and reduces noise and vibration.

Spindle Pinch Bolt & Nut Critical A bolt and nut that hold the spindle in place on the steering or suspension system.

Steering Knuckle Critical A part that connects the wheels to the steering and suspension systems.

Steering Knuckle Bearing Critical A bearing that helps the steering knuckle rotate smoothly.

Strut Bearing Plate Insulator Critical A part that reduces noise and vibration between the strut bearing and the vehicle body.

Strut Bump Stop Critical A part that stops the strut from fully compressing, protecting it from damage.

Strut Bumper/Bellow Critical A cover that protects the strut from dirt while also providing extra cushioning during suspension movement.

Strut Rod Bushing Critical A part that cushions the strut rod connection to the frame, reducing noise and vibration.

Subframe Bushing Critical A bushing that reduces noise and vibration between the subframe and the vehicle body.

Suspension Bushing Critical A kit with bushings that help reduce noise and vibration in the suspension system.

Suspension Hydraulic Fluid Specialized hydraulic fluid for electronically controlled or air suspension systems.

Suspension Knuckle Critical A part that connects the wheels to the suspension and steering systems.

Suspension Knuckle Bushing/Insert Critical A bushing that reduces friction and absorbs impacts between the suspension knuckle and other components.

Suspension Ride Height Sensor Critical A sensor that measures the height of the vehicle and helps adjust the suspension automatically.

Suspension Self-Leveling Valve Fitting Critical A part that helps maintain the vehicle's ride height by adjusting the suspension.

Suspension Solenoid Critical A solenoid that controls the flow of air or fluid in the suspension system to adjust the ride height or handling.

Suspension/Steering Grease Grease for suspension and steering parts with grease fittings.

Sway/Stabilizer Bar Assembly Critical A bar that reduces body roll during turns, making the vehicle more stable.

Sway/Stabilizer Bar Bushing Critical A bushing that cushions the sway bar and helps it work smoothly while reducing noise.

Sway/Stabilizer Bar Link Critical A part that connects the sway bar to the suspension, helping reduce body roll during turns.

Thrust Arm Critical A part that connects the suspension to the chassis, helping keep the vehicle stable.

Track/Panhard Bar Critical A bar that controls the side-to-side movement of the axle, improving stability and handling.

Trailing Arm Critical A suspension part that helps control the rear wheels and keep them aligned.

Spare Tire The backup tire kept in your trunk or under the vehicle for emergencies.

Spare Tire Mount The bracket or assembly that securely holds your spare tire in place under the vehicle or on the rear.

Tire Critical The rubber part of the wheel that touches the road and grips it.

Tire Sealant A liquid sealant injected into tires to seal small punctures and prevent air leaks.

Tire Shine/Dressing Product applied to tires to make them look clean and dark.

Valve Stem Cap A small plastic or metal cap that covers and protects the tire valve stem from dirt and moisture.

Wheel (Rim) The metal wheel that the tire is mounted on.

Wheel Valve Stem Critical A part that allows air to be added to the tire and keeps it sealed.

Trailer Brake Controller A device that controls the trailer’s brakes, ensuring safe and effective braking while towing.

Trailer Brake Controller Connector A connector that links the trailer brake controller to the vehicle’s electrical system.

Trailer Brake System Connector A connector that links the trailer’s braking system to the vehicle’s electrical system.

Trailer Connector A connector that links the trailer’s lights to the vehicle’s electrical system.

Trailer Converter Connector A connector that allows the trailer’s lights and brakes to work properly when connected to the vehicle.

Trailer Harness A set of wires that connect the vehicle’s electrical system to the trailer’s lights and brakes.

Trailer Hitch A strong metal piece that allows a trailer to be attached to the vehicle for towing.

Trailer Hitch Lock A lock that keeps the trailer hitch securely attached to prevent theft or unauthorized removal.

Trailer Tow Relay A relay that controls power to the trailer’s lights, brakes, and other systems.

TPMS Parts/Components Parts that monitor tire pressure and help alert the driver if the pressure is too low or high.

TPMS Sensor The sensor inside your wheel that tracks tire pressure.

TPMS Service Kit A kit with parts to service or replace components of the TPMS system.

Valve Stem Core A small internal component inside the tire valve stem that controls air flow in and out of the tire.

AT Bands Critical Helps the automatic transmission shift gears by applying pressure when needed.

Automatic Transmission Critical The automatic gearbox that shifts gears without driver input to deliver engine power to the wheels.

Automatic Transmission Fluid (ATF) Critical The fluid that lubricates and operates an automatic transmission.

Clutch Cable Critical A cable that connects the clutch pedal to the clutch so you can shift gears.

Clutch Fluid Critical The fluid that lets your clutch pedal actually disengage the clutch.

Clutch Fork Critical A part that helps move the clutch to engage and disengage the gears when you press the pedal.

Clutch Fork Pivot Critical A pivot that lets the clutch fork move properly to engage the clutch.

Clutch Hose Critical A hose that carries fluid to engage and disengage the clutch in hydraulic systems.

Clutch Kit Critical A set of parts to replace the clutch system, including the disc, pressure plate, and bearing.

Clutch Master & Slave Cylinder Assembly Critical A combined part that controls the hydraulic system for the clutch to engage and disengage.

Clutch Master Cylinder Critical A part that helps pressurize the fluid in the clutch system so you can shift gears.

Clutch Pilot Bearing/Bushing Critical A bearing that helps support the transmission shaft and allows smooth shifting.

Clutch Plate (Disc) Critical A part that transfers power from the engine to the transmission when you engage the clutch.

Clutch Pressure Plate Bolt Critical A bolt that holds the pressure plate securely to the flywheel for proper clutch operation.

Clutch Release Bearing Critical A bearing that helps release the clutch so you can shift gears smoothly.

Clutch Release Bearing & Slave Cylinder Assembly Critical A combined part that helps the clutch release smoothly in hydraulic systems.

Clutch Slave Cylinder Critical A part that helps engage and disengage the clutch in hydraulic systems.

Clutch Switch Critical A switch that makes sure the car only starts when you press the clutch pedal.

CVT Additive A specialized treatment for continuously variable transmissions that improves fluid performance and reduces noise or shuddering.

CVT Fluid Critical The special fluid used in continuously variable (CVT) transmissions.

CVT Transmission Critical A continuously variable transmission that smoothly changes gear ratios without discrete steps, commonly found in many modern vehicles.

DCT Fluid Critical Specialized hydraulic fluid for dual-clutch transmissions (DCTs).

EV Drive Unit Fluid Critical Lubricating fluid for electric vehicle motor and gear reduction systems.

Flywheel Critical A part that connects the engine to the transmission and helps the engine run smoothly.

Flywheel Bolt/Nut Critical Bolts or nuts that hold the flywheel to the engine.

Flywheel Ring Gear Critical A gear that connects the starter motor to the engine to start it.

Flywheel Shim Critical A thin part that helps align the flywheel with the engine and transmission.

Gear Oil Critical Oil that lubricates gears in the transmission and differential to keep them running smoothly.

Gear Oil Additive A chemical treatment that improves the performance and longevity of manual transmission or transfer case gear oil.

Gear Shift Lever Cable/Linkage Critical A cable that links the gear shifter to the transmission to change gears.

Gear Shift Lever Components Critical Various parts that help the gear shifter work smoothly.

Gear Shifter Critical The lever or dial you use to select gears in your vehicle (Park, Reverse, Neutral, Drive, or manual selections).

Manual Transmission Critical A gearbox that lets the driver manually shift between gears using a clutch pedal and gear stick.

Neutral Safety Switch Critical A switch that prevents the car from starting unless it’s in neutral or park.

Neutral Safety Switch Connector Critical A connector that links the neutral safety switch to the car’s wiring system.

Neutral Safety Switch Relay Critical A relay that controls power to the neutral safety switch.

Shift Interlock Solenoid Critical A solenoid that keeps the vehicle from being shifted out of park unless the brake is pressed.

Shift Knob The grip handle you use to move the transmission between gears.

Shift Lever Assembly Critical A lever that lets you manually shift gears in the vehicle's transmission.

Shifter Stabilizer Bushing Critical A set of bushings that helps reduce movement in the gear shifter for smoother shifting.

Torque Converter Clutch Solenoid Critical A solenoid that controls the clutch in the torque converter to improve fuel efficiency.

Torque Converter Repair Sleeve Critical A kit with parts to repair or replace the torque converter sleeve and prevent leaks.

Torque Converter Seal Critical A seal that keeps transmission fluid from leaking out of the torque converter.

Trans Fluid Filler Cap Critical A cap that seals the transmission fluid port to prevent leaks and contamination.

Transmission Assembly Critical A complex system that transfers power from the engine to the wheels, allowing the vehicle to move.

Transmission Bushings Critical Small parts that reduce friction and vibration in the transmission, helping it last longer.

Transmission Case Cover Critical A cover that protects the transmission’s internal components from damage and contamination.

Transmission Case Vent Critical A part that lets heat and pressure escape from the transmission case, preventing damage.

Transmission Conductor Plate Critical An electrical part that helps manage signals in the transmission for smooth shifting.

Transmission Control Module Critical A computer that controls how the transmission shifts gears and operates.

Transmission Control Solenoid Critical A solenoid that controls the flow of fluid in the transmission, helping it shift gears.

Transmission Control Solenoid Seal Critical A seal that keeps transmission fluid from leaking around the control solenoid.

Transmission Control Unit Critical The computer that manages your transmission's gear shifts and hydraulic pressure for smooth operation.

Transmission Countershaft Bearing Critical A bearing that helps the countershaft rotate smoothly in the transmission.

Transmission Detent Cable Seal Critical A seal that prevents fluid leaks where the detent cable connects to the transmission.

Transmission Detent/Kickdown Cable Critical A cable that makes the transmission downshift for more power during acceleration.

Transmission Differential Bearing Critical A bearing that helps the differential rotate smoothly in the transmission.

Transmission Differential Cover Gasket Critical A gasket that prevents fluid leaks from the differential cover in the transmission.

Transmission Dipstick/Tube Critical A dipstick and tube that allow you to check the transmission fluid level and add fluid.

Transmission Dipstick/Tube Seal Critical A seal that prevents fluid leaks where the dipstick tube connects to the transmission.

Transmission Drain Plug A plug that allows transmission fluid to be drained during maintenance or repair.

Transmission Drain Plug Gasket Critical A gasket that prevents fluid leaks around the transmission drain plug.

Transmission Dust/Inspection Cover Critical A cover that protects the transmission’s internal components from dirt and damage.

Transmission Extension Housing Bushing Critical A bushing that reduces wear and vibration where the driveshaft connects to the transmission.

Transmission Extension Housing Gasket/Seal Critical A gasket or seal that prevents fluid leaks from the transmission extension housing.

Transmission Extension Housing Repair Sleeve Critical A repair part that fixes a worn or damaged transmission extension housing.

Transmission Filler Plug Critical A plug that seals the port where transmission fluid is added to prevent leaks.

Transmission Filter Critical A filter that keeps transmission fluid clean by removing dirt and debris.

Transmission Filter Housing Critical A housing that holds the transmission filter in place, ensuring proper filtration.

Transmission Filter Seal Critical A seal that prevents fluid leaks around the transmission filter.

Transmission Flexplate Critical A metal plate that connects the engine to the transmission, helping transfer power.

Transmission Fluid Critical Hydraulic fluid that powers automatic transmission shifts and keeps components cool.

Transmission Fluid Additive An additive that improves the performance of transmission fluid, reducing wear and improving shifting.

Transmission Fluid Filler Cap Locking Pin A pin that secures the transmission fluid cap to prevent tampering or accidental removal.

Transmission Fluid Pressure Sensor/Switch Critical A sensor that measures the pressure of transmission fluid and helps adjust the transmission’s performance.

Transmission Gasket Critical A set of gaskets that seal different parts of the transmission to prevent fluid leaks.

Transmission Governor Critical A part that helps regulate when the transmission shifts gears based on speed.

Transmission Indicator Light Bulb A bulb that lights up the gear indicator on the dashboard.

Transmission Input Shaft Bearing Critical A bearing that helps the input shaft rotate smoothly in the transmission.

Transmission Input Shaft Repair Sleeve Critical A sleeve that repairs a worn or damaged input shaft in the transmission.

Transmission Input Shaft Seal Critical A seal that prevents fluid leaks around the input shaft in the transmission.

Transmission Intermediate Shaft Bearing Critical A bearing that helps the intermediate shaft rotate smoothly in the transmission.

Transmission Kick Down Solenoid Critical A solenoid that helps the transmission downshift for more power during acceleration.

Transmission Kickdown Solenoid Switch Critical A switch that activates the kickdown solenoid to make the transmission downshift.

Transmission Modulator Critical A part that controls transmission fluid pressure for smooth gear shifts.

Transmission Mount Critical A part that supports the transmission and reduces vibrations.

Transmission Mount Insulator Critical A part that cushions the transmission mount to reduce noise and vibrations.

Transmission Oil Cooler Critical A cooler that helps keep transmission fluid at the right temperature to prevent overheating.

Transmission Oil Cooler Hose Critical A hose that carries transmission fluid to the oil cooler to keep it cool.

Transmission Oil Cooler Hose Retainer Critical A part that secures the transmission oil cooler hose, preventing leaks or disconnection.

Transmission Oil Cooler Hose Seal Critical A seal that prevents fluid leaks from the transmission oil cooler hose.

Transmission Oil Cooler Line Connector Critical A connector that links the transmission oil cooler lines to the transmission and cooler.

Transmission Oil Cooler Seal Critical A seal that prevents fluid leaks where the transmission oil cooler connects to the transmission.

Transmission Oil Cooler Thermostat Critical A part that controls how much transmission fluid flows through the cooler to maintain the right temperature.

Transmission Oil Cooler Thermostat Bracket Critical A bracket that holds the transmission oil cooler thermostat in place.

Transmission Oil Pan Critical A pan that holds the transmission fluid and allows it to be drained during maintenance.

Transmission Oil Pan Gasket Critical A gasket that prevents transmission fluid from leaking around the oil pan.

Transmission Oil Pump Seal Critical A seal that prevents fluid leaks around the transmission oil pump.

Transmission Output Shaft Bearing Critical A bearing that helps the output shaft rotate smoothly in the transmission.

Transmission Output Shaft Repair Sleeve Critical A sleeve that repairs a worn or damaged output shaft in the transmission.

Transmission Output Shaft Seal Critical A seal that prevents fluid leaks around the output shaft in the transmission.

Transmission Output Shaft Speed Sensor Connector Critical A connector that links the output shaft speed sensor to the vehicle’s wiring system.

Transmission Parking Pawl Actuating Rod Critical A rod that engages the parking mechanism in the transmission, preventing the vehicle from rolling.

Transmission Plug Adapter Critical A part that adapts transmission connections to ensure proper fit and function.

Transmission Shift Bushing Critical A bushing that helps the shift linkage work smoothly, allowing for easier gear changes.

Transmission Shift Cable Critical A cable that connects the gear shifter to the transmission to allow gear changes.

Transmission Shift Kit Critical A kit that upgrades the transmission for better shifting performance.

Transmission Shift Linkage Bushing Critical A bushing that helps the shift linkage work smoothly, allowing for easier gear changes.

Transmission Shift Shaft Seal Critical A seal that prevents transmission fluid leaks around the shift shaft.

Transmission Speed Sensor Critical A sensor that measures the speed of the transmission and helps adjust gear shifts.

Transmission Speedometer Pinion Seal Critical A seal that prevents fluid leaks where the speedometer pinion connects to the transmission.

Transmission Spring Disc Critical A disc that cushions the clutch in the transmission, reducing wear and making gear shifts smoother.

Transmission Stop Leak A chemical additive that seals small transmission fluid leaks by conditioning seals and gaskets.

Transmission Torque Converter Critical A part that helps transfer power from the engine to the transmission, allowing the vehicle to move.

Transmission Transfer Shaft Bearing Critical A bearing that helps the transfer shaft rotate smoothly, transferring power between the engine and transmission.

Transmission Valve Body Critical A kit with parts to rebuild or repair the transmission valve body for better gear shifting.

Transmission Valve Body Cover Gasket Critical A gasket that prevents transmission fluid leaks around the valve body cover.

Vehicle Speed Sensor Critical A sensor that measures the vehicle’s speed for the speedometer and engine.

Vehicle Speed Sensor Connector Critical A connector that links the speed sensor to the vehicle’s wiring system.

Intercooler Critical A cooler that lowers the temperature of air from the turbocharger before it enters the engine.

Intercooler Gasket Critical A gasket that seals the intercooler to the engine to prevent air leaks.

Intercooler Mount Critical A mount that holds the intercooler securely in place.

Supercharger Oil Critical Specialized lubricating fluid that keeps the supercharger's internal components cool and properly lubricated.

Turbo Blow-Off Valve Critical A valve that releases excess pressure from a turbocharged engine when the throttle closes, preventing compressor surge and damage.

Turbo Wastegate Critical A valve that controls turbocharger boost pressure by diverting exhaust gases away from the turbine.

Spare Tire Cover A protective cover that shields the spare tire from UV rays, dirt, and weather when mounted on the outside of the vehicle.

Wheel Center Cap A decorative cover that fits over the center hub of a wheel to protect the lug nuts and improve appearance.

Wheel Cleaner Cleaner made specifically for removing brake dust from wheels.

Wheel Cover A decorative or protective cap that covers the center or entire face of a wheel.

Windshield Washer Check Valve A valve that prevents washer fluid from flowing back into the reservoir.

Windshield Washer Fluid The fluid your wipers spray to help clean the windshield.

Windshield Washer Fluid Reservoir A tank that holds washer fluid for cleaning the windshield.

Windshield Washer Fluid Reservoir Cap A cap that seals the washer fluid reservoir to keep the fluid clean.

Windshield Washer Hose T Connector A connector that helps distribute washer fluid to multiple nozzles.

Windshield Washer Pump A pump that moves washer fluid from the tank to the windshield for cleaning.

Windshield Washer Pump Connector A connector that powers the washer pump to spray fluid on the windshield.

Windshield Washer Pump Grommet A grommet that prevents washer fluid leaks where the pump connects to the reservoir.

Windshield Wiper Arm Cover A cover that protects the wiper arm's hardware from dirt and moisture.

Windshield Wiper Linkage Bushing A bushing that helps the wipers move smoothly and quietly.

Windshield Wiper Motor Connector A connector that powers the wiper motor to operate the wipers.

Windshield Wiper Switch Connector A connector that allows the wiper switch to control the wipers.

Wiper Arm Critical A part that holds the wiper blade and moves it across the windshield.

Wiper Arm Seal A rubber or silicone seal that prevents water from leaking where the wiper arm connects to the windshield.

Wiper Blade The rubber blade that wipes water off your windshield.

Wiper Linkage/Transmission Critical A mechanism that helps move the wipers across the windshield.

Wiper Motor Critical A motor that powers the wipers to move across the windshield.

Wiper Motor Pulse Board Module Critical A part that controls how fast the wipers move, especially in intermittent mode.

Wiper Motor Relay Critical A relay that powers the wiper motor so the wipers can operate.

Wiper Refill Critical The rubber part of the wiper blade that clears the windshield.

Wiper Switch Critical A switch that lets the driver control the speed and operation of the wipers.

Wiper Washer Switch A switch that allows the driver to spray washer fluid onto the windshield.

Wiper-Windshield Washer Nozzle A nozzle that sprays washer fluid onto the windshield for cleaning.

Accessory Delay Relay Lets the power windows and radio work for a little while after the car is turned off.

Accessory Power Relay Sends power to the accessories like the radio and power outlets when the car is on.

Accessory Power Relay Connector Connects the relay that powers the car's accessories to the electrical system.

Auxiliary Battery A secondary battery that powers vehicle accessories and systems when the main engine battery is unavailable or depleted.

Battery Critical The battery that starts your car and powers the electronics.

Battery Cable Critical A cable that connects the battery to the car’s electrical system to power everything.

Battery Charging Cable Critical A cable that connects the battery to the alternator and other parts of the charging system.

Battery Current Sensor Critical Measures how much electricity is going in and out of the battery to help control charging.

Battery Current Sensor Connector Critical Connects the sensor that measures battery current to the car’s electrical system.

Battery Electrolyte/Acid Critical The acid/water mixture inside a car battery that lets it hold a charge.

Battery Hold Down Critical A part that keeps the battery in place so it doesn’t move around while driving.

Battery Terminal Critical The clamps that connect the battery to the car’s electrical system to send power.

Battery Vent Tube Critical A tube that lets gases from the battery escape safely.

Body Control Module Critical The computer that controls things like the lights, windows, and locks in the car.

Body Harness Connector Critical Connects the main wiring in the vehicle to parts like the lights, windows, and locks.

Circuit Breaker Critical A device that stops electricity flow if there’s an overload to protect the car’s electrical system.

Dielectric Grease The clear grease used on bulb sockets and electrical connectors to keep moisture out.

Electrical Connector Critical A connector that links electrical components to the car’s wiring.

Electrical Contact Cleaner A fast-drying solvent spray that removes oxidation and corrosion from electrical contacts and connectors to restore conductivity.

Engine Wiring Harness Connector Critical A connector that links engine sensors and components to the car’s electrical system.

Fuse Box Critical The central junction that holds and protects the fuses and relays that control power distribution to your vehicle's electrical systems.

Fuse Box Lid The plastic cover that protects the fuses and relays in your vehicle's electrical distribution panel.

Fuses Critical Small parts that protect the car’s electrical system from overloads.

Instrument Cluster Critical The gauge panel in front of the driver showing speed, fuel, and warning lights.

Instrument Panel Cluster Relay A relay that controls the power supply to the dashboard gauges and lights.

Instrument Panel Connector A connector that links the dashboard gauges to the car’s electrical system.

Main Relay Critical A relay that controls power to important electrical parts like the fuel pump or ignition.

Multi Purpose Relay Critical A relay that controls power to different electrical parts in the car.

Multi Purpose Relay Connector Critical A connector that links the relay to the car’s wiring system.

Power Door Lock Relay A relay that controls power to the door lock actuators to lock/unlock doors remotely.

Power Door Lock Switch A switch that lets you lock or unlock the doors with a button.

Power Seat Relay A relay that controls power to the seat motors so you can adjust the seat position.

Power Window Motor Connector A connector that links the power window motor to the car’s electrical system.

Power Window Motor Gear A gear that helps the power window motor raise and lower the window.

Power Window Relay A relay that controls power to the power window motors so the windows can be raised or lowered.

Power Window Switch A switch that lets you raise or lower the windows with a button.

Pulse Wiper Relay A relay that controls how fast the windshield wipers move in intermittent mode.

Push To Start Switch Critical A button that starts the car when you press it, instead of using a key.

Relay Control Module Critical A module that helps control different electrical systems in the car by managing power to relays.

Remote Key Housing A protective casing that holds the electronic parts and key blade of the remote key.

Starter Critical A motor that cranks the engine to start the car.

Starter Bolt Critical A bolt that secures the starter motor to the engine or transmission.

Starter Brush Critical A part that helps transfer electricity to the starter motor to turn the engine.

Starter Bushing Critical A bushing that supports the starter shaft, reducing friction and wear.

Starter Cut-Off Relay Critical A relay that disconnects power to the starter once the engine is running.

Starter Drive Critical A part that connects the starter motor to the engine’s flywheel to start the car.

Starter Relay Critical A relay that sends power to the starter motor to crank the engine.

Starter Relay Connector Critical A connector that links the starter relay to the vehicle’s electrical system.

Starter Solenoid Critical A part that engages the starter motor when you turn the key or press the start button.

Sunroof Switch The switch used to operate the sunroof.

Time Delay Relay A relay that controls when electrical components turn on or off after a delay.

Voltage Regulator Critical A part that controls how much voltage the alternator sends to the car’s electrical system.

Voltage Regulator Connector Critical A connector that links the voltage regulator to the car’s electrical system.

Washer Fluid Level Sensor A sensor that tracks the level of washer fluid and alerts the driver when it's low.

Washer Fluid Level Sensor Connector A connector that links the washer fluid level sensor to the vehicle’s electrical system.

Washer Fluid Level Sensor Grommet A grommet that seals the washer fluid level sensor, preventing leaks from the reservoir.

Window Defroster Relay A relay that controls the power to the rear window defroster.

Window Motor A motor that moves the window up or down using electrical power.

Wiring Relay Critical A relay that manages electrical power flow to various parts of the vehicle.