Walker 921-2318 Ignition Coil

Walker ThunderSpark Ignition Coil

Walker ThunderSpark ignition coil Part Number 921-2318 is a direct-fit ignition coil for select Buick, Chevrolet, and GMC applications. It is listed for single-coil use on 2016-2021 models, including Buick Encore, Chevrolet Cruze, Equinox, Malibu, Volt, Trax, and GMC Terrain.

Key Features

• Walker ThunderSpark product line ignition coil
• Direct replacement for select GM vehicles
• Fits applications listed as single coil
• Supports ignition system repair on 2016-2021 Buick, Chevrolet, and GMC models
• Part Number 921-2318 for accurate ordering and lookup

Fitment Details

• Fits 2021 Buick Encore, N/A, Single Coil
• Fits 2019 Buick Encore, N/A, Single Coil
• Fits 2019-2021 Chevrolet Equinox, N/A, Single Coil
• Fits 2019-2021 Chevrolet Malibu, N/A, Single Coil
• Fits 2021 Chevrolet Trax, N/A, Single Coil
• Fits 2019-2021 GMC Terrain, N/A, Single Coil
• Fits 2019 Chevrolet Cruze, N/A, Single Coil
• Fits 2019 Chevrolet Volt, N/A, Single Coil
• Fits 2016-2018 Buick Encore, N/A, ThunderSpark
• Fits 2016-2018 Chevrolet Cruze, N/A, ThunderSpark
• Fits 2018 Chevrolet Equinox, N/A, ThunderSpark
• Fits 2016-2018 Chevrolet Malibu, N/A, ThunderSpark
• Fits 2016-2018 Chevrolet Volt, N/A, ThunderSpark
• Fits 2018 GMC Terrain, N/A, ThunderSpark

What It Is Used For

• Replacing a failed ignition coil that causes misfires
• Restoring spark delivery on affected Buick Encore and Chevrolet Cruze applications
• Addressing rough idle or hard-start conditions tied to coil failure
• Correcting loss of engine performance related to weak ignition output
• Repairing ignition system faults on Chevrolet Equinox, Malibu, Volt, and GMC Terrain models

Installation Notes and Tips

Verify the vehicle year, make, model, and coil application before ordering. This part number 921-2318 is listed for single-coil applications, so match the existing coil style and connector layout to the original unit before installation. Clear diagnostic trouble codes after repair and confirm proper engine operation.

Quality Assurance

Walker ThunderSpark is the identified product line for this ignition coil, and Part Number 921-2318 provides a precise reference for fitment lookup on the listed Buick, Chevrolet, and GMC vehicles.