← Search Parts

Coil Boot

Critical For Operation

Ignition System

Insulates and connects the ignition coil to the spark plug.

The coil boot is an insulating sleeve that connects the ignition coil to the spark plug, ensuring a strong electrical connection while preventing voltage leaks.

💵
Typical part cost
$5–$20🔒
🔧
Typical labor cost
$50–$100🔒
🛣️
Typically lasts
60,000–100,000 mi
📅
Or about
4.0–7.0 years
🛠️
DIY difficulty
3/10

⚠️ Owners Often Notice

If the Coil Boot is starting to fail, these are the signs owners most commonly report before it gets worse:

Engine misfires
Rough idling
Check engine light
Poor fuel economy
Hard starting
Loss of power

Related Services

Services commonly performed on or around this part.

Replace Coil Boot(s)

No standard interval on file

Inspect Coil Boot(s)

No standard interval on file

Test Coil Boot(s)

No standard interval on file