Walker 921-2201 Ignition Coil - Left

Walker ThunderSpark Ignition Coil 921-2201

Walker ThunderSpark ignition coil 921-2201 is a direct-fit ignition coil for select Ford truck and van applications. It is listed for left-side use on specific Ford F-150, F-250 Super Duty, F-350 Super Duty, F-350, and E-350 Super Duty models.

Key Features

• Walker ThunderSpark product line ignition coil
• Part number 921-2201 for fitment-based lookup
• Compatible with select Ford F-150 ignition coil applications
• Compatible with select Ford F-250 Super Duty and Ford F-350 Super Duty applications
• Left-side fitment on listed vehicles
• Single-coil note applies to specified Ford F-350 applications

Fitment Details

• Fits 2017 Ford E-350 Super Duty, left.
• Fits 2011-2017 Ford F-250 Super Duty, left.
• Fits 2011-2017 Ford F-350 Super Duty, left.
• Fits 2011-2016 Ford F-350, left; single coil.
• Fits 2010-2014 Ford F-150, left.
• Fits 2010 Ford F-350 Super Duty, left; single coil.

What It Is Used For

• Restoring spark output in a failing ignition circuit
• Addressing engine misfire conditions tied to coil failure
• Correcting rough idle or hesitation related to weak ignition performance
• Replacing a damaged or worn ignition coil on the listed Ford models

Installation Notes and Tips

Verify the vehicle year, model, and left-side application before ordering. Match the part number 921-2201 to the existing coil and confirm the single-coil note where listed for Ford F-350 applications. For accurate results, inspect related ignition components during replacement and clear any stored diagnostic trouble codes after installation.

Quality Assurance

Walker ThunderSpark is the product line identified for this ignition coil, and 921-2201 is cataloged for the listed Ford applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.