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Walker
ThunderSparkWalker 921-2235 Ignition Coil
| Brand | Walker 921-2235 |
|---|---|
| Product line | ThunderSpark |
| Fits | Audi, Porsche, and Volkswagen · 179 vehicles |
OE direct replacement. Built as an ignition coil for straightforward replacement.
ThunderSpark line. Walker’s performance-focused product line for ignition components.
Ignition coil for reliable spark delivery.
$33.75Free shipping
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Ignition Coil for Audi, Porsche, and Volkswagen
Walker ThunderSpark ignition coil Part Number 921-2235 is a direct-fit ignition component for a wide range of Audi, Porsche, and Volkswagen applications. It supports consistent spark delivery for vehicles such as the Audi A4 Quattro, Audi Q7, Porsche Cayenne, and Volkswagen Touareg.
Key Features
- Walker ThunderSpark ignition coil line
- Part Number 921-2235
- Fits multiple Audi, Porsche, and Volkswagen engine applications
- Application-specific fitment for ThunderSpark and Single Coil configurations
- Useful for restoring ignition performance on listed vehicles
Detailed Description
The Walker ThunderSpark line covers a broad range of ignition coil applications across Audi A4, A6, A8, S4, S5, Q5, Q7, and related models, plus Porsche Cayenne and Panamera and Volkswagen Touareg. Part Number 921-2235 is listed for both ThunderSpark and Single Coil fitments, so it is important to match the vehicle year, model, and notes exactly before ordering. This part cross-references no additional part numbers in the provided data.
What It Helps Address
- Engine misfire conditions tied to weak ignition output
- Rough idle caused by failing coil performance
- Hard starting related to inconsistent spark delivery
- Loss of acceleration from ignition breakdown under load
- Check engine light concerns associated with coil faults
Installation Notes and Tips
Verify the exact year, make, model, and fitment note before installation. Some applications are marked ThunderSpark, while others are marked Single Coil or include VIN-based notes for 2006 Audi models. Confirm connector style and engine application against the vehicle before replacing the coil. Part Number 921-2235 should be matched to the listed fitment only.
Quality Assurance
Walker ThunderSpark is the product line identified for this ignition coil, and the fitment data covers 2003-2019 Audi, Porsche, and Volkswagen applications. Use the listed vehicle coverage to confirm the correct replacement for your specific model.
This part fits 179 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2019 | Audi | Q7 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2018 | Audi | A6 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2018 | Audi | A7 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2018 | Audi | A8 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2018 | Audi | Q7 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2018 | Porsche | Cayenne | 3.0L | V6 | — | N/A | ThunderSpark |
| 2017 | Audi | A6 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2017 | Audi | A7 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2017 | Audi | A8 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2017 | Audi | Q5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2017 | Audi | Q7 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2017 | Audi | S5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2017 | Audi | SQ5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2017 | Porsche | Cayenne | 3.0L | V6 | — | N/A | ThunderSpark |
| 2017 | Volkswagen | Touareg | 4.2L | V8 | — | N/A | Single Coil |
| 2016 | Audi | A5 | 3.0L | V6 | — | N/A | Single Coil |
| 2016 | Audi | A5 Quattro | 3.0L | V6 | — | N/A | Single Coil |
| 2016 | Audi | A6 | 3.0L | V6 | — | N/A | Single Coil |
| 2016 | Audi | A6 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2016 | Audi | A7 | 3.0L | V6 | — | N/A | Single Coil |
| 2016 | Audi | A7 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2016 | Audi | A8 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2016 | Audi | Q5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2016 | Audi | Q7 | 3.0L | V6 | — | N/A | Single Coil |
| 2016 | Audi | S4 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2016 | Audi | S5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2016 | Audi | SQ5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2016 | Porsche | Cayenne | 3.0L | V6 | — | N/A | ThunderSpark |
| 2016 | Porsche | Panamera | 3.0L | V6 | ELECTRIC/GAS | N/A | ThunderSpark |
| 2016 | Volkswagen | Touareg | 4.2L | V8 | — | N/A | Single Coil |
| 2015 | Audi | A5 | 3.0L | V6 | — | N/A | Single Coil |
| 2015 | Audi | A5 Quattro | 3.0L | V6 | — | N/A | Single Coil |
| 2015 | Audi | A6 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2015 | Audi | A7 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2015 | Audi | A8 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2015 | Audi | Q5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2015 | Audi | Q7 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2015 | Audi | R8 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2015 | Audi | R8 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2015 | Audi | S4 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2015 | Audi | S5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2015 | Audi | SQ5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2015 | Porsche | Cayenne | 3.0L | V6 | — | N/A | ThunderSpark |
| 2015 | Porsche | Panamera | 3.0L | V6 | ELECTRIC/GAS | N/A | ThunderSpark |
| 2015 | Volkswagen | Touareg | 3.0L | V6 | — | N/A | ThunderSpark |
| 2014 | Audi | A4 Quattro | 3.0L | V6 | — | N/A | Single Coil |
| 2014 | Audi | A5 Quattro | 3.0L | V6 | — | N/A | Single Coil |
| 2014 | Audi | A6 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2014 | Audi | A7 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2014 | Audi | A8 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2014 | Audi | Q5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2014 | Audi | Q7 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2014 | Audi | R8 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2014 | Audi | R8 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2014 | Audi | S4 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2014 | Audi | S5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2014 | Audi | SQ5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2014 | Porsche | Cayenne | 3.0L | V6 | — | N/A | ThunderSpark |
| 2014 | Porsche | Panamera | 3.0L | V6 | ELECTRIC/GAS | N/A | ThunderSpark |
| 2014 | Volkswagen | Touareg | 3.0L | V6 | — | N/A | ThunderSpark |
| 2013 | Audi | A4 Quattro | 3.0L | V6 | — | N/A | Single Coil |
| 2013 | Audi | A5 Quattro | 3.0L | V6 | — | N/A | Single Coil |
| 2013 | Audi | A6 | 2.8L | V6 | — | N/A | Single Coil |
| 2013 | Audi | A6 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2013 | Audi | A7 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2013 | Audi | A8 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2013 | Audi | Q5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2013 | Audi | Q7 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2013 | Audi | S4 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2013 | Audi | S5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2013 | Porsche | Cayenne | 3.0L | V6 | — | N/A | ThunderSpark |
| 2013 | Porsche | Panamera | 3.0L | V6 | — | N/A | ThunderSpark |
| 2013 | Volkswagen | Touareg | 3.0L | V6 | — | N/A | ThunderSpark |
| 2012 | Audi | A4 Quattro | 3.2L | V6 | — | N/A | Single Coil |
| 2012 | Audi | A5 Quattro | 3.0L | V6 | — | N/A | Single Coil |
| 2012 | Audi | A6 | 2.8L | V6 | — | N/A | Single Coil |
| 2012 | Audi | A6 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2012 | Audi | A7 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2012 | Audi | A8 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2012 | Audi | Q5 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2012 | Audi | Q7 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2012 | Audi | R8 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2012 | Audi | R8 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2012 | Audi | S4 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2012 | Audi | S5 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2012 | Audi | S5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2012 | Porsche | Cayenne | 3.0L | V6 | — | N/A | ThunderSpark |
| 2012 | Porsche | Panamera | 3.0L | V6 | — | N/A | ThunderSpark |
| 2012 | Volkswagen | Touareg | 3.0L | V6 | — | N/A | ThunderSpark |
| 2011 | Audi | A4 Quattro | 3.2L | V6 | — | N/A | Single Coil |
| 2011 | Audi | A5 Quattro | 3.2L | V6 | — | N/A | Single Coil |
| 2011 | Audi | A6 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2011 | Audi | A6 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2011 | Audi | A6 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2011 | Audi | A8 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2011 | Audi | Q5 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2011 | Audi | Q7 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2011 | Audi | R8 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2011 | Audi | R8 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2011 | Audi | S4 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2011 | Audi | S5 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2011 | Audi | S5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2011 | Audi | S6 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2011 | Porsche | Cayenne | 3.0L | V6 | — | N/A | ThunderSpark |
| 2011 | Volkswagen | Touareg | 3.0L | V6 | — | N/A | ThunderSpark |
| 2010 | Audi | A4 Quattro | 3.2L | V6 | — | N/A | Single Coil |
| 2010 | Audi | A5 | 3.2L | V6 | — | N/A | Single Coil |
| 2010 | Audi | A5 Quattro | 3.2L | V6 | — | N/A | ThunderSpark |
| 2010 | Audi | A6 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2010 | Audi | A6 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2010 | Audi | A6 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2010 | Audi | A8 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2010 | Audi | Q5 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2010 | Audi | Q7 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2010 | Audi | R8 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2010 | Audi | R8 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2010 | Audi | RS6 | 5.0L | V10 | — | N/A | Single Coil |
| 2010 | Audi | S4 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2010 | Audi | S5 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2010 | Audi | S5 | 3.0L | V6 | — | N/A | ThunderSpark |
| 2010 | Audi | S6 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2010 | Audi | S8 | 5.2L | V10 | — | N/A | Single Coil |
| 2009 | Audi | A4 Quattro | 3.2L | V6 | — | N/A | ThunderSpark |
| 2009 | Audi | A5 | 3.2L | V6 | — | N/A | Single Coil |
| 2009 | Audi | A5 Quattro | 3.2L | V6 | — | N/A | ThunderSpark |
| 2009 | Audi | A6 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2009 | Audi | A6 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2009 | Audi | A6 Quattro | 3.0L | V6 | — | N/A | ThunderSpark |
| 2009 | Audi | A8 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2009 | Audi | Q7 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2009 | Audi | R8 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2009 | Audi | R8 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2009 | Audi | S4 | 4.2L | V8 | — | N/A | Single Coil |
| 2009 | Audi | S5 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2009 | Audi | S6 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2009 | Audi | S8 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2009 | Volkswagen | Touareg | 4.2L | V8 | — | N/A | ThunderSpark |
| 2008 | Audi | A4 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2008 | Audi | A4 Quattro | 3.2L | V6 | — | N/A | ThunderSpark |
| 2008 | Audi | A5 | 3.2L | V6 | — | N/A | Single Coil |
| 2008 | Audi | A5 Quattro | 3.2L | V6 | — | N/A | ThunderSpark |
| 2008 | Audi | A6 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2008 | Audi | A6 Quattro | 3.2L | V6 | — | N/A | ThunderSpark |
| 2008 | Audi | A6 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2008 | Audi | A8 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2008 | Audi | Q7 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2008 | Audi | R8 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2008 | Audi | S4 | 4.2L | V8 | — | N/A | Single Coil |
| 2008 | Audi | S5 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2008 | Audi | S6 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2008 | Audi | S8 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2008 | Volkswagen | Touareg | 4.2L | V8 | — | N/A | ThunderSpark |
| 2007 | Audi | A4 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2007 | Audi | A4 Quattro | 3.2L | V6 | — | N/A | ThunderSpark |
| 2007 | Audi | A6 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2007 | Audi | A6 Quattro | 3.2L | V6 | — | N/A | ThunderSpark |
| 2007 | Audi | A6 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2007 | Audi | A8 Quattro | 4.2L | V8 | — | N/A | ThunderSpark |
| 2007 | Audi | Q7 | 4.2L | V8 | — | N/A | ThunderSpark |
| 2007 | Audi | S4 | 4.2L | V8 | — | N/A | Single Coil |
| 2007 | Audi | S6 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2007 | Audi | S8 | 5.2L | V10 | — | N/A | ThunderSpark |
| 2007 | Volkswagen | Touareg | 4.2L | V8 | — | N/A | ThunderSpark |
| 2006 | Audi | A4 | 3.2L | V6 | — | N/A | ThunderSpark |
| 2006 | Audi | A4 Quattro | 3.2L | V6 | — | N/A | From Chassis/VIN 8E-6-060 001; ThunderSpark |
| 2006 | Audi | A6 | 3.2L | V6 | — | N/A | From Chassis/VIN 4F-6-050 001; ThunderSpark |
| 2006 | Audi | A6 Quattro | 3.2L | V6 | — | N/A | From Chassis/VIN 4F-6-050 001; ThunderSpark |
| 2006 | Audi | A8 Quattro | 4.2L | V8 | — | N/A | Single Coil |
| 2006 | Audi | S4 | 4.2L | V8 | — | N/A | Single Coil |
| 2005 | Audi | A4 | 3.2L | V6 | — | N/A | Single Coil |
| 2005 | Audi | A4 Quattro | 3.2L | V6 | — | N/A | Single Coil |
| 2005 | Audi | A6 Quattro | 4.2L | V8 | — | N/A | Single Coil |
| 2005 | Audi | A8 Quattro | 4.2L | V8 | — | N/A | Single Coil |
| 2005 | Audi | Allroad Quattro | 4.2L | V8 | — | N/A | Single Coil |
| 2005 | Audi | S4 | 4.2L | V8 | — | N/A | Single Coil |
| 2004 | Audi | A8 Quattro | 4.2L | V8 | — | N/A | Single Coil |
| 2004 | Audi | Allroad Quattro | 4.2L | V8 | — | N/A | Single Coil |
| 2004 | Audi | S4 | 4.2L | V8 | — | N/A | Single Coil |
| 2003 | Audi | Allroad Quattro | 4.2L | V8 | — | N/A | Single Coil |
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