OE Quality
60-Day Returns

Walker 900-P2041-4 Coil Boot Kit
Reliable Coil Boot Kit for Ford, Mazda, and Mercury Vehicles
The Walker ThunderCore-Ultra Coil Boot Kit 900-P2041-4 is designed to provide dependable ignition coil performance for select Ford, Mazda, and Mercury models. This kit ensures a secure connection between the ignition coil and spark plug, helping maintain efficient engine operation.
- Compatible with Ford Escape, Focus, Transit Connect, and Tribute models
- Fits Mazda 3 and Mercury Mariner vehicles
- Part number 900-P2041-4 for precise identification
- Part of the Walker ThunderCore-Ultra product line
- Designed to maintain optimal ignition coil connection and performance
About the Walker ThunderCore-Ultra Product Line
The ThunderCore-Ultra line by Walker focuses on ignition components engineered for durability and consistent electrical conductivity. This coil boot kit is part of that line, offering a reliable interface between the ignition coil and spark plug to support stable ignition and engine efficiency in compatible Ford, Mazda, and Mercury vehicles.
Product Details and Compatibility
This coil boot kit, part number 900-P2041-4, is specifically designed for use with ignition systems in Ford Escape, Focus, Transit Connect, and Tribute models, as well as Mazda 3 and Mercury Mariner vehicles. It ensures a proper seal and connection, which is critical for preventing misfires and maintaining engine performance.
Common Applications and Issues Addressed
- Prevents ignition coil misfires caused by poor coil-to-plug connection
- Reduces risk of electrical arcing and ignition system faults
- Helps maintain consistent spark delivery for smooth engine operation
- Addresses issues related to worn or damaged coil boots
- Supports overall ignition system reliability in specified Ford, Mazda, and Mercury models
Installation Notes and Tips
When installing the Walker ThunderCore-Ultra Coil Boot Kit 900-P2041-4, ensure the ignition system is cool to avoid damage. Carefully remove the old coil boots and inspect the ignition coil and spark plug terminals for corrosion or damage. Install the new coil boots securely to maintain a tight connection and prevent moisture intrusion.
Quality Assurance and Warranty
Walker manufactures the ThunderCore-Ultra coil boot kit to meet industry standards for ignition components. While specific warranty details are not provided, Walker products typically undergo quality control to ensure durability and performance in compatible Ford, Mazda, and Mercury vehicles.
This part fits 31 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2013 | Ford | Transit Connect | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2012 | Ford | Transit Connect | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2011 | Ford | Focus | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2011 | Ford | Transit Connect | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2010 | Ford | Focus | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2010 | Ford | Transit Connect | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2009 | Ford | Focus | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2008 | Ford | Escape | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2008 | Ford | Focus | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2008 | Mazda | Tribute | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2008 | Mercury | Mariner | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2007 | Ford | Escape | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2007 | Ford | Focus | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2007 | Ford | Focus | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2007 | Mercury | Mariner | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2006 | Ford | Escape | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2006 | Ford | Focus | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2006 | Ford | Focus | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2006 | Mazda | Tribute | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2006 | Mercury | Mariner | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2005 | Ford | Escape | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2005 | Ford | Focus | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2005 | Ford | Focus | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2005 | Mazda | 3 | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2005 | Mazda | 3 | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2005 | Mazda | Tribute | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2005 | Mercury | Mariner | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2004 | Ford | Focus | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2004 | Mazda | 3 | 2.3L | L4 | N/A | ThunderCore-Ultra |
| 2004 | Mazda | 3 | 2.0L | L4 | N/A | ThunderCore-Ultra |
| 2003 | Ford | Focus | 2.3L | L4 | N/A | ThunderCore-Ultra |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.