Bosch Ignition Coil Replacement

Bosch ignition coils are replacement ignition coils (also called coil packs or coil-on-plug coils). They convert the vehicle's low battery voltage into the high voltage the spark plugs need to ignite the air-fuel mixture in the engine. A strong, consistent spark supports smooth starting, steady idle, responsive acceleration and efficient combustion.

Key Features:

• Designed as a direct replacement for worn or failing ignition coils
• Engineered to deliver consistent high-voltage output across a wide range of operating conditions
• Built with quality insulation and durable housings that resist heat, vibration and engine bay exposure
• Produced by Bosch, a long-time original equipment supplier to automakers worldwide
• Helps restore performance when symptoms such as misfires, rough idle, hard starting, reduced fuel economy or a check engine light point to a weak coil

Replacing a faulty ignition coil helps restore reliable ignition performance and reduces the risk of misfires that can strain other engine and emissions components. Pairing new coils with fresh spark plugs is a common maintenance practice. Select the individual item that matches your application from the options on this page.