Walker 921-2166 Ignition Coil

Walker ThunderSpark Ignition Coil

Walker ThunderSpark ignition coil Part Number 921-2166 is a direct-fit ignition component for select Lexus applications. It is listed for 1998-2000 Lexus GS400, LS400, and SC400 models, giving buyers a focused replacement option for ignition system service.

Key Features

• Ignition coil for select Lexus GS400, LS400, and SC400 applications
• Walker ThunderSpark product line
• Direct replacement part number 921-2166
• Fits 1998-2000 Lexus GS400, LS400, SC400

Product Details

The Walker ThunderSpark line covers ignition components built for specific vehicle applications, and this ignition coil is cataloged for 1998-2000 Lexus GS400, 1998-2000 Lexus LS400, and 1998-2000 Lexus SC400. If you are replacing a failing ignition coil on a Lexus GS400, LS400, or SC400, part number 921-2166 provides a targeted match for those model years.

Common Issues This Part May Address

• Engine misfire related to weak ignition output
• Rough idle caused by inconsistent spark delivery
• Hard starting linked to ignition coil failure
• Loss of power under load from degraded coil performance
• Check engine light concerns tied to ignition system faults

Installation Notes

Verify the vehicle year and model before installation. Confirm the existing coil connector style and mounting location against the original part to ensure proper fitment on the Lexus GS400, LS400, or SC400. Part number 921-2166 should be matched to the exact application listed in the fitment data.

Quality Assurance

Walker ThunderSpark is the product line identified for this ignition coil, and the part is cataloged for specific Lexus applications to support accurate replacement selection. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.