Walker 900-P2041-4 Coil Boot Kit

Walker ThunderCore-Ultra Coil Boot Kit

Walker ThunderCore-Ultra coil boot kit, part number 900-P2041-4, is built for ignition service on select Ford, Mazda, and Mercury applications. It is a direct-fit ignition coil boot kit for vehicles such as the Ford Focus, Ford Escape, and Mazda 3, with fitment covering model years from 2003 through 2013.

Key Features

• Walker ThunderCore-Ultra product line for ignition service applications
• Coil boot kit for ignition coil maintenance and replacement
• Fits 2010-2013 Ford Transit Connect, N/A
• Fits 2003-2011 Ford Focus, N/A
• Fits 2005-2008 Ford Escape, N/A
• Fits 2008 Mazda Tribute, N/A
• Fits 2005-2006 Mazda Tribute, N/A
• Fits 2005-2008 Mercury Mariner, N/A
• Fits 2004-2005 Mazda 3, N/A
• Part number 900-P2041-4 for accurate ordering and service lookup

Detailed Description

The Walker ThunderCore-Ultra line is positioned for ignition system service where a coil boot replacement is needed to restore proper spark transfer between the ignition coil and spark plug. This part number 900-P2041-4 is listed for multiple compact and crossover platforms, including Ford Focus, Ford Escape, Mazda 3, Mazda Tribute, Mercury Mariner, and Ford Transit Connect applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Misfire conditions related to worn or damaged coil boots
• Hard starting caused by weak spark delivery
• Rough idle from inconsistent ignition transfer
• Ignition coil service needs on Ford Focus and Ford Escape platforms
• Maintenance on Mazda 3, Mazda Tribute, and Mercury Mariner ignition systems

Installation Notes and Tips

Verify engine and ignition configuration against the vehicle catalog before installation. Inspect the ignition coil, spark plug, and surrounding boot area for carbon tracking, oil contamination, or heat damage before reassembly. Use clean handling practices during service to avoid contaminating the boot surface, and confirm the part number 900-P2041-4 matches the application before installation.

Quality Assurance

Walker ThunderCore-Ultra parts are cataloged for specific vehicle applications to support accurate fitment selection. Confirm year, make, model, and engine details for the listed Ford, Mazda, and Mercury vehicles before ordering.