SKP SK521129 Suspension Control Arm and Ball Joint Assembly - Front Left Upper
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SKP SK521129 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Brand SKP SK521129
Position Front Left Upper
Fits Ford and Lincoln · 8 vehicles

OE-style replacement. Application-specific suspension control arm and ball joint assembly.

Fitment-specific design. Built for front left upper applications with listed suspension notes.

Cross-references Dorman - OE Solutions 521-129, MOOG Chassis Products RK80717 and 2L1Z3085CA for the same application. See all 6.

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Suspension Control Arm Assembly

The SKP SK521129 is a suspension control arm and ball joint assembly for specific Ford Expedition and Lincoln Navigator applications. It is built for front left upper fitment on vehicles with the listed suspension configurations and date breakpoints.

Key Features

  • Direct replacement suspension control arm and ball joint assembly.
  • Fits front left upper applications with adjustable suspension where specified.
  • Application-specific design for the listed Ford Expedition and Lincoln Navigator models.
  • Cross-references Dorman - OE Solutions 521-129 and MOOG RK80717 for the same application.

Fitment Details

Compatible With:

  • Fits 2006 Ford Expedition, Front Left Upper, w/Adjustable Suspension; To 12/14/05
  • Fits 2005 Ford Expedition, Front Left Upper, w/Adjustable Suspension
  • Fits 2004 Ford Expedition, Front Left Upper, w/Adjustable Suspension; From 12/01/03
  • Fits 2003 Ford Expedition, Front Left Upper, From 12/01/03
  • Fits 2006 Lincoln Navigator, Front Left Upper, To 12/14/05
  • Fits 2005 Lincoln Navigator, Front Left Upper
  • Fits 2003-2004 Lincoln Navigator, Front Left Upper, From 12/01/03

What It Is Used For

  • Replacing a worn or damaged upper control arm assembly.
  • Restoring proper suspension geometry at the front left upper mounting point.
  • Addressing looseness, clunking, or uneven tire wear linked to control arm wear.
  • Correcting fitment issues on vehicles with adjustable suspension or date-specific build requirements.

Installation Notes

Verify the vehicle build date and suspension configuration before ordering. This part is specific to front left upper applications and includes date-sensitive fitment for certain Expedition and Navigator models. Confirm the existing part number and mounting position against the vehicle before installation.

Quality Assurance

SKP replacement suspension components are cataloged for application-specific fitment and OE-style service use. Confirm all fitment details against the vehicle before installation.

Related reading

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2006FordExpeditionFront Left Upperw/Adjustable Suspension; To 12/14/05
2006LincolnNavigatorFront Left UpperTo 12/14/05
2005FordExpeditionFront Left Upperw/Adjustable Suspension
2005LincolnNavigatorFront Left Upper—
2004FordExpeditionFront Left Upperw/Adjustable Suspension; From 12/01/03
2004LincolnNavigatorFront Left UpperFrom 12/01/03
2003FordExpeditionFront Left UpperFrom 12/01/03
2003LincolnNavigatorFront Left UpperFrom 12/01/03
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - OE Solutions — 521-129MOOG Chassis Products — RK807172L1Z3085CA6L1Z3085BA521129WC111129