Walker 921-2186 Ignition Coil

Walker ThunderSpark Ignition Coil 921-2186

Walker ThunderSpark ignition coil 921-2186 is a direct-fit ignition coil for select Buick, Chevrolet, and Cadillac applications. It is built for drivers searching for a replacement ignition coil for Chevrolet Cruze, Chevrolet Sonic, Chevrolet Trax, Buick Encore, Chevrolet Volt, and Cadillac ELR models.

Key Features

• Walker ThunderSpark product line ignition coil
• Part number 921-2186 for application-specific replacement
• Compatible with select 2011-2021 Buick, Chevrolet, and Cadillac vehicles
• Supports ignition system repair on turbo and non-turbo listed applications
• Direct replacement format for single-coil applications

Detailed Description

The Walker ThunderSpark line focuses on ignition components for common GM compact and hybrid platforms. This ignition coil 921-2186 is listed for 2011-2015 Chevrolet Cruze, 2011-2015 Chevrolet Volt, 2012-2017 Chevrolet Sonic, 2013-2015 Buick Encore, 2013-2014 Chevrolet Trax, 2014-2016 Cadillac ELR, 2015 Chevrolet Trax, 2016 Chevrolet Cruze Limited, 2016-2021 Buick Encore, 2016-2021 Chevrolet Trax, and 2018-2020 Chevrolet Sonic. Use this part number 921-2186 when replacing a failed coil on the specified vehicle applications.

What It Is Used For

• Misfire diagnosis tied to a weak or failed ignition coil
• Rough idle caused by inconsistent spark output
• Hard starting related to ignition coil breakdown
• Check engine light conditions associated with ignition performance faults
• Restoring proper spark delivery on listed Chevrolet Cruze and Chevrolet Sonic applications

Installation Notes

Verify engine and model-year fitment before installation. Compare the original coil connector, mounting style, and application notes against the vehicle listing. For best results, inspect spark plugs and related ignition components during replacement, especially on Chevrolet Trax, Buick Encore, and Chevrolet Volt applications.

Quality Assurance

Walker ThunderSpark is the product line identified for this ignition coil, and part number 921-2186 is cataloged for the listed GM applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.