Please Note: Whenever replacing steering components, it is highly recommended to have a professional alignment performed on the vehicle afterwards.  Failure to do so may result in issues with steering and premature tire wear.

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 Idler Arm (0:21)
    • Raise and support the vehicle
    • Remove the cotter pin from the idler arm castle nut with side cutters
    • Loosen the castle nut with a 21mm wrench or socket and breaker bar
    • Remove the castle nut
    • Attach an idler arm puller to the idler arm
    • Turn the idler arm puller bolt to separate the idler arm from the steering linkage
    • Remove the two 21mm bolts that hold the idler arm to the frame
    • Pull the idler arm off the frame
  2. step : Installing the Idler Arm (3:24)
    • Twist the castle nut off the new idler arm
    • Remove the plastic cover from the new idler arm ball joint
    • Start the grease fitting into the frame side of the idler arm by hand
    • Tighten the grease fitting with a 9/32" wrench
    • Start the grease fitting into the ball joint side of the idler arm by hand
    • Tighten the grease fitting with a 9/32" wrench
    • Line up the idler arm on the frame
    • Start the top 21mm bolt into the idler arm
    • Start the lower 21mm bolt into the idler arm
    • Tighten the two 21mm bolts preliminarily
    • Connect the steering linkage to the idler arm
    • Start the castle nut onto the idler arm stud
    • Tighten the castle nut to 70 foot-pounds of torque
    • Turn the castle nut to line up with the cotter pin hole
    • Insert the cotter pin through the cotter pin hole
    • Bend the cotter pin to secure it
    • Torque the two 21mm bolts that hold the idler arm to the frame to 140 foot-pounds
    • Add grease to each grease fitting with a grease gun until it starts to leak
    • Wipe off any remaining grease

Tools needed for replacement:

    General Tools

  • Jack Stands
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Cloth Rags

  • Pliers, Cutters & misc Wrenches

  • Side Cutters

  • Ratchets & Related

  • Socket Extensions
  • Torque Wrench
  • Ratchet
  • 1/2 Inch Breaker Bar

  • Sockets - Metric

  • 21mm Socket

  • Specialty Tools

  • Grease Gun
  • Idler Arm Puller

  • Wrenches - Metric

  • 21mm wrench

  • Wrenches - SAE

  • 9/32 Inch Wrench

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How-to Video:

(07:18 min)

Tools List:

    General Tools

  • Jack Stands
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Cloth Rags

  • Pliers, Cutters & misc Wrenches

  • Side Cutters

  • Ratchets & Related

  • Socket Extensions
  • Torque Wrench
  • Ratchet
  • 1/2 Inch Breaker Bar

  • Sockets - Metric

  • 21mm Socket

  • Specialty Tools

  • Grease Gun
  • Idler Arm Puller

  • Wrenches - Metric

  • 21mm wrench

  • Wrenches - SAE

  • 9/32 Inch Wrench



This part replaces:

  • Moog K8739T
  • Moog K8700
  • Moog ES3366T
  • Moog ES3367T
  • Moog ES3365T
  • Moog K8728T
  • Moog K8726T
  • Moog K8772
  • Moog ES3368S
  • Moog ES3364
  • Hollander 511-01022BL
  • Hollander 511-01022BR
  • OE # 5L3Z 3085 B
  • OE # 5L3Z 3084 B
  • OE # F65Z3281BA, F65Z3281AA
  • OE # 1L3Z3350AB
  • OE # 6L3Z 3079 E
  • OE # 6L3Z 3078 E
  • Moog K620056
  • Moog K620055
  • Dorman 520-219
  • Dorman 520-220
  • Dorman 520-218
  • Dorman 520-217

Vehicle Fit

  • 1999-2002 Ford Expedition 2 Wheel Drive 14 Piece Set Steering & Suspension Kit for Models with 2.48" Bolt Pattern Idler Arm
  • 2004 Ford F150 Heritage Truck 2 Wheel Drive 14 Piece Set Steering & Suspension Kit for Models with 2.48" Bolt Pattern Idler Arm
  • 1999-2003 Ford F150 Truck 2 Wheel Drive 14 Piece Set Steering & Suspension Kit for Models with 2.48" Bolt Pattern Idler Arm
  • 1999 Ford F250 Light Duty Truck 2 Wheel Drive 14 Piece Set Steering & Suspension Kit for Models with 2.48" Bolt Pattern Idler Arm
  • 2002 Lincoln Blackwood 2 Wheel Drive 14 Piece Set Steering & Suspension Kit for Models with 2.48" Bolt Pattern Idler Arm
  • 1998-2002 Lincoln Navigator 2 Wheel Drive 14 Piece Set Steering & Suspension Kit for Models with 2.48" Bolt Pattern Idler Arm
Part #: 1ASFK05291

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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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