Specifications:

  • Brand New Motorcraft Wire Set
  • Meet or exceed original equipment specifications
  • Exact fit
    • Correct wire length
    • Correct boot style
  • Replaces dealer part numbers: 5U2Z12259C, 5U2Z-12259-C, WR6120, WR-6120, 1U2Z12259KA, 1U2Z-12259-KA, 1U2Z12259KB, 1U2Z-12259-KB, 3U2Z12259C, 3U2Z-12259-C, 5U2Z12259BA, 5U2Z-12259-BA, 5U3Z-12259-AA, 1F2218140, 1F22-18140, 1F2218140A, 1F22-18140-A
  • High quality silicon jacket
  • EPDM insulation
  • Fits the following Ford engines per listing:
    • V6 4.0L

Note for Explorer owners: Fits Sport and Sport Trac Models ONLY

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser. Please keep your invoice for proof of this warranty.

  1. step : Removing the Spark Plug (0:47)
    • Pull the spark plug wire off the spark plug
    • Remove the spark plug with a spark plug socket and ratchet
    • Pull the spark plug wire off the distributor
    • Pry open the spark plug wire retainer with a flat blade screwdriver
    • Pull out the spark plug wire
  2. step : Preparing the New Spark Plug Wire (2:12)
    • Lay out the new spark plug wires by length
    • Find the wire closest in length to the one you are replacing
    • Apply dielectric grease to the spark plug wire connections
  3. step : Installing the Spark Plug (3:24)
    • Apply dielectric grease to the spark plug
    • Line the spark plug up by hand
    • Thread the spark plug with a spark plug socket and an extension
    • Tighten the spark plug with a spark plug socket and ratchet
  4. step : Installing the Spark Plug Wire (4:34)
    • Connect the spark plug wire to the distributor
    • Route the wire through the wire retainer
    • Connect the wire to the spark plug
    • Repeat these steps for the remaining spark plugs
    • Snap the wire retainer closed

Tools needed for replacement:

    Ratchets & Related

  • Swivel
  • Ratchet
  • Socket Extensions

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - SAE

  • 5/8 Inch Spark Plug Socket

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How-to Video:

(05:36 min)

Tools List:

    Ratchets & Related

  • Swivel
  • Ratchet
  • Socket Extensions

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - SAE

  • 5/8 Inch Spark Plug Socket



This part replaces:

  • Motorcraft WR6120
  • OE # 5U2Z12259C, 1U2Z12259KA, 1U2Z12259KB, 3U2Z12259C, 5U2Z12259BA, 1F2218140, 1F2218140A

Vehicle Fit

  • 2001 Ford Explorer Sport Spark Plug Wire Set V6 4.0L (Built After 7/25/00 Production Date) Motorcraft WR6120
  • 2002-2003 Ford Explorer Spark Plug Wire Set V6 4.0L Sport Motorcraft WR6120
  • 2001 Ford Explorer Sport Trac Spark Plug Wire Set V6 4.0L (Built After 7/25/00 Production Date) Motorcraft WR6120
  • 2002-2008 Ford Explorer Sport Trac Spark Plug Wire Set V6 4.0L Motorcraft WR6120
  • 2005-2011 Ford Mustang Spark Plug Wire Set V6 4.0L Motorcraft WR6120
  • 2001-2011 Ford Ranger Spark Plug Wire Set V6 4.0L Motorcraft WR6120
  • 2001-2008 Mazda B4000 Truck Spark Plug Wire Set V6 4.0L Motorcraft WR6120
Only 4 left in stock
Part #: MCESW00008

Ships Same Day for orders placed by 4 P.M. ET

MOTORCRAFT
Brand #: WR6120

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Customer Feedback

"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
- Dwuan M.
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