Walker 921-2305 Ignition Coil

Walker ThunderSpark Ignition Coil for Audi V8 Applications

Walker ThunderSpark 921-2305 is an ignition coil for select Audi performance sedans and sportbacks with V8 applications. It is listed for 2015-2018 Audi RS7, 2016-2018 Audi S8, and specific 2016 Audi S6 and S7 builds, making it a direct-fit option for targeted ignition service.

Key Features

• Ignition coil for select Audi RS7, S8, S6, and S7 applications
• Walker ThunderSpark product line
• Part number 921-2305 for accurate ordering and catalog lookup
• Fits 2015-2018 Audi RS7, 2016-2018 Audi S8, 2016 Audi S6 to 07/27/2015, and 2016 Audi S7 to 07/27/2015
• Position listed as N/A in the fitment data

Product Details

The Walker ThunderSpark line focuses on ignition components for vehicle-specific service needs. This ignition coil, part number 921-2305, is cataloged for select Audi RS7 and Audi S8 models, plus specific 2016 Audi S6 and S7 applications with build-date notes. Use the fitment details to confirm the exact vehicle before ordering, especially on 2016 Audi S6 and S7 models where the application is limited to vehicles built to 07/27/2015.

Common Issues This Part May Address

• Engine misfire under load
• Rough idle or uneven combustion
• Hard starting related to weak ignition output
• Loss of power from inconsistent spark delivery
• Check engine light triggered by ignition coil faults

Installation Notes and Tips

Verify the VIN, engine build date, and OE coil configuration before installation. For 2016 Audi S6 and 2016 Audi S7, confirm the vehicle was built to 07/27/2015 as listed in the fitment notes. Inspect spark plugs, coil connectors, and related ignition wiring during service to help isolate the root cause of the fault. Walker 921-2305 should be matched to the exact application shown in the catalog data.

Quality Assurance

Walker ThunderSpark parts are cataloged for specific vehicle applications and identified by part number 921-2305 for precise fitment verification. This part cross-references no additional part numbers in the provided data.