Walker
ThunderCore-Ultra

Walker 900-P2045-8 Coil Boot Kit

Brand Walker 900-P2045-8
Product line ThunderCore-Ultra
Fits Lincoln, Mercury, and Ford · 29 vehicles

Coil boot kit. Restores ignition coil boot service with a direct replacement design.

ThunderCore-Ultra line. Built for dependable ignition performance from Walker.

$47.62Free shipping
In stock · usually ships same day before 1pm CST
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Order total $47.62
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Free returns within 60 days if it doesn't fit when fitment is verified.

Walker ThunderCore-Ultra Coil Boot Kit for Ford V8 Applications

Walker ThunderCore-Ultra part number 900-P2045-8 is a coil boot kit for select Ford, Lincoln, and Mercury vehicles. It is listed for 2004-2008 applications across the F-150, Expedition, Mustang, Explorer, Navigator, Mark LT, and Mountaineer platforms.

Key Features

  • Walker ThunderCore-Ultra ignition coil boot kit
  • Part number 900-P2045-8 for direct catalog identification
  • Fits 2004-2007 Ford F-150, N/A
  • Fits 2005-2007 Ford Expedition, N/A
  • Fits 2005-2007 Ford Mustang, N/A
  • Fits 2006-2008 Lincoln Mark LT, N/A
  • Fits 2006-2008 Mercury Mountaineer, N/A
  • Fits 2006-2007 Lincoln Navigator, N/A

Product Details

The ThunderCore-Ultra line from Walker covers ignition service parts for specific vehicle applications, and this coil boot kit is cataloged for the 2004-2008 Ford and Lincoln/Mercury platforms shown below. Use part number 900-P2045-8 when matching the correct ignition boot kit for your vehicle, including Ford F-150, Ford Expedition, and Ford Mustang applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Addresses

  • Misfire caused by worn or damaged coil boots
  • Ignition voltage leakage at the spark plug end
  • Hard starting related to degraded boot insulation
  • Rough idle from compromised ignition transfer
  • Intermittent engine performance from aging ignition components

Installation Notes

Verify engine and ignition system match the listed fitment before installation. Inspect the coil, spark plug, and surrounding ignition components for wear or contamination, and replace any damaged parts during service. Confirm the boot seats fully on the coil and spark plug connection for proper ignition transfer.

Quality Assurance

Walker ThunderCore-Ultra ignition components are cataloged for specific OE-style vehicle applications, and part number 900-P2045-8 is listed for direct fitment matching in the applications shown.

This part fits 29 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2008LincolnMark LT—5.4LV8N/AThunderCore-Ultra
2008MercuryMountaineer—4.6LV8N/AThunderCore-Ultra
2007FordExpedition—5.4LV8N/AThunderCore-Ultra
2007FordExplorer—4.6LV8N/AThunderCore-Ultra
2007FordExplorer Sport Trac—4.6LV8N/AThunderCore-Ultra
2007FordF-150—5.4LV8N/AThunderCore-Ultra
2007FordF-250 Super Duty—5.4LV8N/AThunderCore-Ultra
2007FordF-350—5.4LV8N/AThunderCore-Ultra
2007FordF-350 Super Duty—5.4LV8N/AThunderCore-Ultra
2007FordMustangGT4.6LV8N/AThunderCore-Ultra
2007LincolnMark LT—5.4LV8N/AThunderCore-Ultra
2007LincolnNavigator—5.4LV8N/AThunderCore-Ultra
2007MercuryMountaineer—4.6LV8N/AThunderCore-Ultra
2006FordExpedition—5.4LV8N/AThunderCore-Ultra
2006FordF-150—5.4LV8N/AThunderCore-Ultra
2006FordF-250 Super Duty—5.4LV8N/AThunderCore-Ultra
2006FordF-350—5.4LV8N/AThunderCore-Ultra
2006FordF-350 Super Duty—5.4LV8N/AThunderCore-Ultra
2006FordMustang—4.6LV8N/AThunderCore-Ultra
2006LincolnMark LT—5.4LV8N/AThunderCore-Ultra
2006LincolnNavigator—5.4LV8N/AThunderCore-Ultra
2006MercuryMountaineer—4.6LV8N/AThunderCore-Ultra
2005FordExpedition—5.4LV8N/AThunderCore-Ultra
2005FordF-150—5.4LV8N/AThunderCore-Ultra
2005FordF-250 Super Duty—5.4LV8N/AThunderCore-Ultra
2005FordF-350 Super Duty—5.4LV8N/AThunderCore-Ultra
2005FordMustang—4.6LV8N/AThunderCore-Ultra
2004FordF-150—5.4LV8N/AThunderCore-Ultra
2004FordF-350 Super Duty—5.4LV8N/AThunderCore-Ultra