Walker 921-2004 Ignition Coil

Walker ThunderSpark Ignition Coil

Walker ThunderSpark 921-2004 is an ignition coil for select Ford, Mazda, Mercury, and Lincoln applications. It is listed for single-coil setups and supports direct replacement needs across multiple model years.

Key Features

• Ignition coil for engine spark delivery
• Walker ThunderSpark product line
• Fits select Ford Escape, Mazda Tribute, and Mercury Mariner applications
• Also listed for Ford Five Hundred, Freestyle, Taurus, Mercury Montego, Sable, Lincoln LS, Mazda 6, and Mazda MPV
• Part number 921-2004 for catalog matching

Fitment Details

• Fits 2008-2009 Mazda Tribute, ThunderSpark
• Fits 2001-2006 Mazda Tribute, ThunderSpark
• Fits 2008 Ford Escape, Single Coil
• Fits 2001-2006 Ford Escape, Single Coil
• Fits 2003-2008 Mazda 6, Single Coil
• Fits 2008 Mercury Mariner, Single Coil
• Fits 2005-2006 Mercury Mariner, Single Coil
• Fits 2005-2007 Ford Five Hundred, Single Coil
• Fits 2005-2007 Ford Freestyle, Single Coil
• Fits 2005-2007 Mercury Montego, Single Coil
• Fits 2002-2006 Mazda MPV, Single Coil
• Fits 2004-2005 Ford Taurus, Single Coil
• Fits 2000 Ford Taurus, Single Coil
• Fits 2004-2005 Mercury Sable, Single Coil
• Fits 2000 Mercury Sable, Single Coil
• Fits 2000 Lincoln LS, Single Coil

What This Part Helps Address

• Misfire conditions related to weak or inconsistent spark
• Hard starting caused by ignition coil failure
• Rough idle from unstable coil output
• Loss of engine performance under load
• Check engine light concerns tied to ignition system faults

Installation Notes

Verify the vehicle’s engine configuration and match the part number 921-2004 before installation. Confirm the application is listed as a single-coil setup and compare the original coil connector and mounting style to the removed part.

Quality Assurance

Walker ThunderSpark is the product line identified for this ignition coil, and 921-2004 is cataloged for the listed Ford Escape, Mazda Tribute, Mazda 6, Mercury Mariner, and related applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.