Control Arm with Ball Joint Driver Side - 1ASFU00122

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Vehicle Fit

Part Details

  • Side Location:   Driver Side

This replacement front upper control arm is just what you need to bring back the safety and integrity of your vehicle's suspension and steering.


  • LH (Driver Side) FRONT UPPER
  • Replaces dealer part numbers: 6L2Z3085AA, 6L2Z 3085 AA
  • Complete assembly
    • Includes ball joint & bushings
  • Direct replacement
  • Built to strict quality control standards

Worn ball joints can cause excessive front tire wear, popping or creaking in the front end, extra play in the steering system, and pose a serious safety concern. Replace loose or worn ball joints with our quality replacement.

One way to diagnose a loose, or warn ball joint, is to jack the car up, so the wheel is off of the ground, then have someone try to move the wheel in and out. While they are moving the wheel check the ball joint for play, if it is moving you probably need to replace it.

Remember whenever you are replacing any front end or steering components you should have your vehicle professionally aligned as soon as possible. This will ensure proper tracking and even tire wear.

Our control arms are designed to be direct replacements for the original factory parts.  They are 100% brand new and require no modifications for installation.  No special tools are required because all of the bushings come pre-installed.

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm -

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.

    We recommend an alignment after finishing this repair

  1. step : Removing the Wheel (0:49)
    • Loosen the lug nuts with the vehicle on the ground
    • Raise the vehicle with a floor jack
    • Secure the vehicle on jack stands
    • Remove the lug nuts
    • Pull off the wheel
  2. step : Removing the Control Arm (1:24)
    • Loosen the 18mm castle nut from the control arm
    • Place a pick fork between the knuckle and the control arm
    • Separate the ball joint from the steering knuckle with a hammer
    • Spray the ends of the bolts on the top of the control arm
    • Remove the 18mm bolts from the control arm
    • Stick an 8mm wrench to the bottom of the castle nut
    • Loosen the nut
    • Lock onto the stud with slip jaw pliers
    • Remove the castle nut
    • Pull the control arm out of the steering knuckle
    • Place a bungee cord around the strut and the knuckle
    • Remove the control arm
  3. step : Installing the Control Arm (4:49)
    • Insert the control arm into place and insert the 18mm bolts to the control arm
    • Remove the bungee cord
    • Insert the stub into the steering knuckle
    • Tighten the back 18mm bolts so that the washer is touching the control arm
    • Raise underneath the strut with a jack to simulate the ride height
    • Tighten the 18mm castle nut
    • Torque the two back bolts to 111 foot-pounds
    • Tighten the 18mm castle nut to 41 foot-pounds
  4. step : Reattaching the Wheel (8:00)
    • Slide the wheel into place
    • Start the lug nuts by hand
    • Tighten the lug nuts preliminarily
    • Lower the vehicle to the ground
    • Tighten the lug nuts to 100 foot-pounds in a crossing or star pattern

Tools needed for replacement:

    General Tools

  • Jack Stands
  • Hammer
  • Floor Jack

  • Materials, Fluids, and Supplies

  • Gloves
  • Rust Penetrant
  • Safety Glasses

  • Ratchets & Related

  • Ratchet
  • 1/2 Inch Breaker Bar

  • Screwdrivers & Related

  • Pry Bar

  • Sockets - Metric

  • Complete Metric Socket Set

  • Specialty Tools

  • Pickle Fork

  • Wrenches - Metric

  • Complete Metric Wrench Set

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Year Make Model Description
2006-2010Ford Explorer Ford Explorer Front Upper Control Arm with Ball Joint Driver Side
2007-2010Ford Explorer Sport Trac Ford Explorer Sport Trac Front Upper Control Arm with Ball Joint Driver Side
2006-2010Mercury Mountaineer Mercury Mountaineer Front Upper Control Arm with Ball Joint Driver Side
Part #: 1ASFU00122

Order must be placed by 4pm ET
Delivery options for:

Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(08:41 min)