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Walker 921-2040 Ignition Coil
Walker ThunderSpark Ignition Coil for Jeep
Walker ThunderSpark ignition coil Part Number 921-2040 is a direct-fit ignition component for select Jeep applications. It is listed for 2000-2006 Jeep TJ and Wrangler, plus 2000-2004 Jeep Grand Cherokee and 2000-2001 Jeep Cherokee, giving buyers a fitment-focused replacement option for common Jeep ignition service needs.
Key Features
- Walker ThunderSpark ignition coil for Jeep ignition system repair
- Fits 2000-2006 Jeep TJ, N/A
- Fits 2000-2006 Jeep Wrangler, N/A
- Fits 2000-2004 Jeep Grand Cherokee, N/A
- Fits 2000-2001 Jeep Cherokee, N/A
- Part Number: 921-2040
Detailed Description
This Walker ThunderSpark ignition coil is built for Jeep owners replacing a failing coil on compatible TJ, Wrangler, Grand Cherokee, and Cherokee models. The ThunderSpark product line focuses on ignition service parts for straightforward replacement in vehicle-specific applications, and 921-2040 is cataloged for the 2000-2006 Jeep Wrangler and TJ, as well as the 2000-2004 Jeep Grand Cherokee and 2000-2001 Jeep Cherokee. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
Common Issues This Part Can Address
- Engine misfire related to a weak ignition coil
- Hard starting caused by inconsistent spark output
- Rough idle during ignition system wear
- Loss of power under load from coil failure
- Check engine light concerns tied to ignition performance
Installation Notes and Tips
Verify the vehicle year, model, and ignition configuration before ordering. Match the existing coil connector and mounting style to the original part, and inspect spark plugs and related ignition components during service. Confirm fitment for your Jeep TJ, Wrangler, Grand Cherokee, or Cherokee using the listed application data before installation.
Quality Assurance
Walker ThunderSpark parts are cataloged for application-specific replacement use in ignition service. Part Number 921-2040 is listed for confirmed Jeep fitments to support accurate ordering and repair planning.
This part fits 21 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Jeep | TJ | 4.0L | L6 | N/A | ThunderSpark |
| 2006 | Jeep | Wrangler | 4.0L | L6 | N/A | ThunderSpark |
| 2005 | Jeep | TJ | 4.0L | L6 | N/A | ThunderSpark |
| 2005 | Jeep | Wrangler | 4.0L | L6 | N/A | ThunderSpark |
| 2004 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | ThunderSpark |
| 2004 | Jeep | TJ | 4.0L | L6 | N/A | ThunderSpark |
| 2004 | Jeep | Wrangler | 4.0L | L6 | N/A | ThunderSpark |
| 2003 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | ThunderSpark |
| 2003 | Jeep | TJ | 4.0L | L6 | N/A | ThunderSpark |
| 2003 | Jeep | Wrangler | 4.0L | L6 | N/A | ThunderSpark |
| 2002 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | ThunderSpark |
| 2002 | Jeep | TJ | 4.0L | L6 | N/A | ThunderSpark |
| 2002 | Jeep | Wrangler | 4.0L | L6 | N/A | ThunderSpark |
| 2001 | Jeep | Cherokee | 4.0L | L6 | N/A | ThunderSpark |
| 2001 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | ThunderSpark |
| 2001 | Jeep | TJ | 4.0L | L6 | N/A | ThunderSpark |
| 2001 | Jeep | Wrangler | 4.0L | L6 | N/A | ThunderSpark |
| 2000 | Jeep | Cherokee | 4.0L | L6 | N/A | ThunderSpark |
| 2000 | Jeep | Grand Cherokee | 4.0L | L6 | N/A | ThunderSpark |
| 2000 | Jeep | TJ | 4.0L | L6 | N/A | ThunderSpark |
| 2000 | Jeep | Wrangler | 4.0L | L6 | N/A | ThunderSpark |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.