ThunderSpark 921-2174 Ignition Coil - Walker 921-2174

Single Coil

The ignition coil transforms the vehicle's battery voltage into the high voltage needed to fire the spark plug and ignite the air/fuel mixture in the cylinder. Signs of failure include: a check engine light with a misfire code on a specific cylinder, a rough idle or lack of power, reduced fuel economy, or a coil that fails a resistance test. Replace a failed ignition coil to restore complete, consistent firing on every cylinder.

Walker, part of Tenneco, manufactures exhaust systems, catalytic converters, and mufflers. Known for comprehensive coverage and reliable performance, Walker delivers cost-effective exhaust solutions.

This part also fits:

• 2007 Mazda 3 Mazdaspeed 6MT
• 2008 Mazda 3 Mazdaspeed 6MT
• 2009 Mazda 3 Mazdaspeed 6MT
• 2010 Mazda 3 Mazdaspeed 6MT
• 2011 Mazda 3 Mazdaspeed 6MT