Walker
ThunderCore PRO

Walker 924-1938 Spark Plug Wire Set

Brand Walker 924-1938
Product line ThunderCore PRO
Fits Ford, Mazda, and Mercury · 37 vehicles

OEM-spec build. Meets or exceeds original equipment specifications and test requirements.

Premium components. Made with hi-temp silicone boots and tips plus stainless steel terminals.

ISO 9001 facility. Precision manufactured in the USA for consistent quality control.

Cross-references AMS Automotive 4762, AMS Automotive 6107 and AMS Automotive 6686 for the same application. See all 36.

$44.01Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing β€” free returns if it doesn't
Step 2 — Quantity
Order total $44.01
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Walker ThunderCore PRO Spark Plug Wire Set

Walker ThunderCore PRO spark plug wire set 924-1938 is built for direct replacement service on select Ford, Mazda, and Mercury applications. It is manufactured in the USA in an ISO 9001 certified facility and built to meet or exceed OEM specifications and test requirements.

Compatible With 2001-2011 Ford Ranger, 2001-2010 Mazda B4000, 2002-2005 Ford Explorer Sport Trac, 2001-2004 Ford Explorer, and 2001-2004 Mercury Mountaineer. This part number, 924-1938, is also listed for 2001 Ford Explorer LHD and 2001 Ford Explorer Sport Trac built from 07/24/2000.

Key Features

  • Walker ThunderCore PRO product line for ignition wire replacement
  • Precision manufactured from premium components
  • Hi-temp OE-quality silicone boots and tips
  • Stainless steel terminals and tubes
  • Includes dielectric grease
  • Built to OEM or equivalent specifications

Detailed Description

Walker 924-1938 is a spark plug wire set engineered for ignition service where consistent electrical transfer and durable heat resistance matter. The ThunderCore PRO line focuses on OE-style construction, using silicone boots and tips, stainless steel terminals, and tubes to support reliable connection quality in the ignition system. For shoppers searching for a Ford Ranger spark plug wire set, Mazda B4000 ignition wire set, or Ford Explorer spark plug wire replacement, this part number matches the listed applications.

This part cross-references DENSO Auto Parts 671-6114 for the same application.

What It Helps Address

  • Misfires caused by worn or damaged plug wires
  • Hard starting related to weak ignition transfer
  • Rough idle from deteriorated wire insulation or terminals
  • Heat-related wire breakdown in the engine bay
  • Intermittent ignition performance from poor terminal contact

Installation Notes and Tips

Verify engine application and routing before installation. Match each wire to the correct cylinder and follow the original routing path to reduce crossfire and heat exposure. Apply the supplied dielectric grease at the boot interfaces as directed, and inspect plugs, coil connections, and wire retainers during service.

Quality Assurance

Walker manufactures this ThunderCore PRO wire set in an ISO 9001 certified facility in the USA and states that it meets or exceeds OEM specifications and test requirements.

This part fits 37 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2011FordRanger4.0LV6—N/AThunderCore PRO
2010FordRanger4.0LV6—N/AThunderCore PRO
2010MazdaB40004.0LV6—N/AThunderCore PRO
2009FordRanger4.0LV6—N/AThunderCore PRO
2009MazdaB40004.0LV6GASN/AThunderCore PRO
2008FordRanger4.0LV6—N/AThunderCore PRO
2008MazdaB40004.0LV6GASN/AThunderCore PRO
2007FordRanger4.0LV6—N/AThunderCore PRO
2007MazdaB40004.0LV6GASN/AThunderCore PRO
2006FordRanger4.0LV6—N/AThunderCore PRO
2006MazdaB40004.0LV6GASN/AThunderCore PRO
2005FordExplorer Sport Trac4.0LV6—N/AThunderCore PRO
2005FordRanger4.0LV6—N/AThunderCore PRO
2005MazdaB40004.0LV6GASN/AThunderCore PRO
2004FordExplorer4.0LV6—N/AThunderCore PRO
2004FordExplorer Sport Trac4.0LV6—N/AThunderCore PRO
2004FordRanger4.0LV6—N/AThunderCore PRO
2004MazdaB40004.0LV6GASN/AThunderCore PRO
2004MercuryMountaineer4.0LV6FLEXN/AThunderCore PRO
2004MercuryMountaineer4.0LV6GASN/AThunderCore PRO
2003FordExplorer4.0LV6—N/AThunderCore PRO
2003FordExplorer Sport Trac4.0LV6—N/AThunderCore PRO
2003FordRanger4.0LV6—N/AThunderCore PRO
2003MazdaB40004.0LV6GASN/AThunderCore PRO
2003MercuryMountaineer4.0LV6FLEXN/AThunderCore PRO
2002FordExplorer4.0LV6—N/AThunderCore PRO
2002FordExplorer Sport Trac4.0LV6—N/AThunderCore PRO
2002FordRanger4.0LV6—N/AThunderCore PRO
2002MazdaB40004.0LV6GASN/AThunderCore PRO
2002MercuryMountaineer4.0LV6FLEXN/AThunderCore PRO
2002MercuryMountaineer4.0LV6GASN/AThunderCore PRO
2001FordExplorer4.0LV6—N/AThunderCore PRO
2001FordExplorer4.0LV6—N/ALHD; ThunderCore PRO
2001FordExplorer Sport Trac4.0LV6—N/AFrom 07/24/2000; ThunderCore PRO
2001FordRanger4.0LV6—N/AThunderCore PRO
2001MazdaB40004.0LV6GASN/AThunderCore PRO
2001MercuryMountaineer4.0LV6GASN/AThunderCore PRO
Directly replaces or cross-references 36 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4762AMS Automotive — 6107AMS Automotive — 6686Anchor — 3349Anchor — 9460Anchor — 9461Anchor — 9611Anchor — 9731DENSO Auto Parts — 671-6114Edelmann — 8680Federal Parts — 4698PRENCO — 35-77589PRENCO — 35-877042X13618HY-33498HY334916-846A35-619935-630035-87697175-617386732923198224126045700132700136CB-259CH8672CH8673CH74184L-6243QW1396WR6052WR6081WR6096