Single Lead Spark Plug/Coil Wire

Critical For Operation

Ignition System

Connects the spark plug or ignition coil to the vehicle’s electrical system.

The single lead spark plug or coil wire carries the electrical current from the ignition coil to the spark plug, allowing the spark plug to ignite the air-fuel mixture in the engine’s cylinders and produce combustion.

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Typical part cost

$20–$60🔒

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Typical labor cost

$50–$150🔒

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Typically lasts

100,000–200,000 mi

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Or about

7.0–10.0 years

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DIY difficulty

3/10

⚠️ Owners Often Notice

If the Single Lead Spark Plug/Coil Wire is starting to fail, these are the signs owners most commonly report before it gets worse:

Engine misfires

Poor engine performance

Check engine light

Rough idling

Related Services

Services commonly performed on or around this part.

Replace Single Lead Spark Plug/Coil Wire(s)

No standard interval on file

Inspect Single Lead Spark Plug/Coil Wire(s)

No standard interval on file

Test Single Lead Spark Plug/Coil Wire(s)

No standard interval on file