HomeIgnition > Ignition CoilWalker 921-2343 Ignition Coil
Part #: 921-2343

Walker 921-2343 Ignition Coil

Single Coil
⚙️ 47 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Single Coil
🚗Fitment: Buick, Cadillac, Chevrolet, and GMC, Acadia, ATS, Blazer, Camaro, Canyon, Colorado, CT5, CT6, CTS, LaCrosse, Regal Sportback, XT5, and XT6
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Reliable Ignition Coil for Buick, Cadillac, Chevrolet, and GMC Vehicles

The Walker ThunderSpark Ignition Coil 921-2343 is engineered to provide consistent ignition performance for select Buick, Cadillac, Chevrolet, and GMC models. Designed to meet OEM specifications, this ignition coil supports efficient engine operation and reliable starts.

  • Compatible with Buick LaCrosse and Regal Sportback models
  • Fits Cadillac ATS, CT5, CT6, CTS, XT5, and XT6 vehicles
  • Suitable for Chevrolet Camaro, Blazer, Colorado, and GMC Acadia, Canyon, and Colorado
  • Walker ThunderSpark brand line ensures quality ignition components
  • Part number 921-2343 for precise fitment and replacement

Walker ThunderSpark Product Line Overview

The ThunderSpark line by Walker focuses on ignition components designed to deliver reliable spark and ignition system performance. This product line emphasizes durability and compatibility with a range of domestic vehicles, including multiple Buick, Cadillac, Chevrolet, and GMC models. The 921-2343 ignition coil is part of this line, ensuring it meets the standards expected for consistent engine ignition.

Product Details and Compatibility

The Walker ThunderSpark Ignition Coil 921-2343 is specifically designed for use in various Buick, Cadillac, Chevrolet, and GMC vehicles. It supports models such as the Buick LaCrosse and Regal Sportback, Cadillac ATS, CT5, CT6, CTS, XT5, and XT6, as well as Chevrolet Camaro, Blazer, Colorado, and GMC Acadia, Canyon, and Colorado. This ignition coil helps maintain proper spark delivery to the engine, which is critical for efficient combustion and engine performance.

Common Applications and Issues Addressed

  • Resolves engine misfires and rough idling
  • Improves starting reliability in Buick, Cadillac, Chevrolet, and GMC vehicles
  • Addresses loss of power or hesitation during acceleration
  • Helps reduce engine stalling and poor fuel economy
  • Replaces faulty ignition coils to restore ignition system function

Installation Notes and Tips

When installing the Walker ThunderSpark Ignition Coil 921-2343, ensure the vehicle is turned off and the battery is disconnected to prevent electrical shock. Verify compatibility with your specific make and model before installation. Follow manufacturer torque specifications for mounting bolts and inspect wiring connectors for corrosion or damage. Proper installation will help maintain ignition system integrity and vehicle performance.

Quality Assurance and Warranty

Walker ignition coils, including the ThunderSpark 921-2343, are manufactured to meet or exceed OEM standards for fit and function. While specific warranty details are not provided here, Walker products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product packaging or manufacturer documentation for exact warranty terms.

This part fits 47 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2020BuickRegal Sportback3.6LV6N/ASingle Coil
2020CadillacCT53.0LV6N/ASingle Coil
2020CadillacCT63.6LV6N/ASingle Coil
2020CadillacXT53.6LV6N/ASingle Coil
2020CadillacXT63.6LV6N/ASingle Coil
2020ChevroletBlazer3.6LV6N/ASingle Coil
2020ChevroletCamaro3.6LV6N/ASingle Coil
2020ChevroletColorado3.6LV6N/ASingle Coil
2020GMCAcadia3.6LV6N/ASingle Coil
2020GMCCanyon3.6LV6N/ASingle Coil
2019BuickLaCrosse3.6LV6N/ASingle Coil
2019BuickRegal Sportback3.6LV6N/ASingle Coil
2019CadillacATS3.6LV6N/ASingle Coil
2019CadillacCT63.6LV6N/ASingle Coil
2019CadillacCTS3.6LV6N/ASingle Coil
2019CadillacXT53.6LV6N/ASingle Coil
2019ChevroletBlazer3.6LV6N/ASingle Coil
2019ChevroletCamaro3.6LV6N/ASingle Coil
2019ChevroletColorado3.6LV6N/ASingle Coil
2019GMCAcadia3.6LV6N/ASingle Coil
2019GMCCanyon3.6LV6N/ASingle Coil
2018BuickLaCrosse3.6LV6N/AThunderSpark
2018BuickRegal Sportback3.6LV6N/AThunderSpark
2018CadillacATS3.6LV6N/AThunderSpark
2018CadillacCT63.6LV6N/AThunderSpark
2018CadillacCT63.0LV6N/AThunderSpark
2018CadillacCTS3.6LV6N/AThunderSpark
2018CadillacXT53.6LV6N/AThunderSpark
2018ChevroletCamaro3.6LV6N/AThunderSpark
2018ChevroletColorado3.6LV6N/AThunderSpark
2018GMCAcadia3.6LV6N/AThunderSpark
2018GMCCanyon3.6LV6N/AThunderSpark
2017BuickLaCrosse3.6LV6N/AThunderSpark
2017CadillacATS3.6LV6N/AThunderSpark
2017CadillacCT63.6LV6N/AThunderSpark
2017CadillacCT63.0LV6N/AThunderSpark
2017CadillacCTS3.6LV6N/AThunderSpark
2017CadillacXT53.6LV6N/AThunderSpark
2017ChevroletCamaro3.6LV6N/AThunderSpark
2017ChevroletColorado3.6LV6N/AThunderSpark
2017GMCAcadia3.6LV6N/AThunderSpark
2017GMCCanyon3.6LV6N/AThunderSpark
2016CadillacATS3.6LV6N/AThunderSpark
2016CadillacCT63.6LV6N/AThunderSpark
2016CadillacCT63.0LV6N/AThunderSpark
2016CadillacCTS3.6LV6N/AThunderSpark
2016ChevroletCamaro3.6LV6N/AThunderSpark

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