HomeIgnition > Ignition CoilWalker 921-2075 Ignition Coil
Part #: 921-2075

Walker 921-2075 Ignition Coil

ThunderSpark
36 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
ThunderSpark
Fitment: Buick, Cadillac, Chevrolet, GMC, Saab, and Saturn, Enclave, CTS, STS, Traverse, Acadia, 9-3, Outlook, LaCrosse, Rendezvous, and SRX
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Reliable Ignition Coil for Buick, Cadillac, Chevrolet, GMC, Saab, and Saturn

The Walker ThunderSpark 921-2075 ignition coil is engineered to provide consistent ignition performance for a range of vehicles including Buick LaCrosse, Cadillac CTS, Chevrolet Traverse, GMC Acadia, Saab 9-3, and Saturn Outlook. Designed to meet OEM specifications, this ignition coil supports efficient engine operation and reliable starts.

  • Compatible with multiple makes and models: Buick, Cadillac, Chevrolet, GMC, Saab, Saturn
  • Walker part number 921-2075 ensures precise fitment
  • Part of the ThunderSpark line, designed for dependable ignition system performance
  • Direct replacement ignition coil for models such as Cadillac SRX, Buick Enclave, and Chevrolet Rendezvous
  • Manufactured to meet or exceed original equipment standards

About the Walker ThunderSpark Ignition Coil Line

The ThunderSpark product line by Walker focuses on ignition components that deliver consistent spark energy and durability. The 921-2075 ignition coil is part of this line, offering reliable ignition coil performance tailored for specific vehicle applications. This ensures compatibility and helps maintain engine efficiency across various Buick, Cadillac, Chevrolet, GMC, Saab, and Saturn models.

Product Description and Application

The Walker ThunderSpark 921-2075 ignition coil is designed to replace faulty or worn ignition coils in select vehicles. It converts the battery's low voltage to the high voltage needed to create an electric spark in the spark plugs, igniting the air-fuel mixture in the engine cylinders. This ignition coil is compatible with models such as the Buick LaCrosse, Cadillac STS, Chevrolet Traverse, GMC Acadia, Saab 9-3, and Saturn Outlook, ensuring proper fit and function.

Common Issues Addressed by This Ignition Coil

  • Engine misfires or rough idling
  • Difficulty starting the engine
  • Reduced fuel efficiency
  • Check engine light related to ignition system faults
  • Loss of power or hesitation during acceleration

Installation Notes and Tips

  • Ensure the ignition system is powered off before installation
  • Verify compatibility with your vehicle’s make and model using part number 921-2075
  • Inspect wiring and connectors for damage before installing the new coil
  • Follow manufacturer torque specifications when securing the ignition coil
  • Clear any diagnostic trouble codes after installation to reset the system

Quality Assurance and Warranty

Walker ignition coils, including the ThunderSpark 921-2075, are manufactured to meet or exceed OEM standards for durability and performance. While specific warranty details may vary, Walker products typically come with a limited warranty against defects in materials and workmanship to provide confidence in your purchase.

This part fits 36 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009BuickEnclave3.6LV6N/AThunderSpark
2009CadillacCTS3.6LV6N/AThunderSpark
2009CadillacSTS3.6LV6N/AThunderSpark
2009ChevroletTraverse3.6LV6N/AThunderSpark
2009GMCAcadia3.6LV6N/AThunderSpark
2009Saab9-32.8LV6N/AThunderSpark
2009SaturnOutlook3.6LV6N/AThunderSpark
2008BuickAllure3.6LV6N/ASingle Coil
2008BuickLaCrosse3.6LV6N/AThunderSpark
2008CadillacCTS3.6LV6N/AThunderSpark
2008CadillacSTS3.6LV6N/AThunderSpark
2008Saab9-32.8LV6N/AThunderSpark
2007BuickAllure3.6LV6N/ASingle Coil
2007BuickLaCrosse3.6LV6N/AThunderSpark
2007CadillacCTS3.6LV6N/AThunderSpark
2007CadillacCTS2.8LV6N/AThunderSpark
2007CadillacSTS3.6LV6N/AThunderSpark
2007Saab9-32.8LV6N/AThunderSpark
2006BuickAllure3.6LV6N/ASingle Coil
2006BuickLaCrosse3.6LV6N/AThunderSpark
2006BuickRendezvous3.6LV6N/AThunderSpark
2006CadillacCTS3.6LV6N/AThunderSpark
2006CadillacCTS2.8LV6N/AThunderSpark
2006CadillacSRX3.6LV6N/AThunderSpark
2006CadillacSTS3.6LV6N/AThunderSpark
2006Saab9-32.8LV6N/AThunderSpark
2005BuickAllure3.6LV6N/ASingle Coil
2005BuickLaCrosse3.6LV6N/AThunderSpark
2005BuickRendezvous3.6LV6N/AThunderSpark
2005CadillacCTS3.6LV6N/AThunderSpark
2005CadillacCTS2.8LV6N/AThunderSpark
2005CadillacSRX3.6LV6N/AThunderSpark
2005CadillacSTS3.6LV6N/AThunderSpark
2004BuickRendezvous3.6LV6N/AThunderSpark
2004CadillacCTS3.6LV6N/AThunderSpark
2004CadillacSRX3.6LV6N/AThunderSpark

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.