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SKP SK521381 Suspension Control Arm and Ball Joint Assembly - Rear Left Upper
| Brand | SKP SK521381 |
|---|---|
| Position | Rear Left Upper |
| Fits | Ford, Lincoln, and Mercury · 19 vehicles |
Direct replacement. Built as a suspension control arm and ball joint assembly for service replacement.
Application-specific fitment. Matches select Ford, Lincoln, and Mercury suspension configurations.
Cross-reference ready. Interchanges with Dorman OE Solutions 521-381 and MOOG RK620668.
Cross-references Dorman - OE Solutions 521-381, MOOG Chassis Products RK620668 and 1L2Z5500AC for the same application. See all 5.
Rear Left Upper Control Arm Assembly
This SKP suspension control arm and ball joint assembly is built for direct replacement service on select Ford, Lincoln, and Mercury applications. It matches the rear left upper position and supports precise suspension geometry for vehicles that need a dependable replacement part.
Key Features
- Suspension control arm and ball joint assembly for the rear left upper position
- Direct replacement format for straightforward service
- Fits select Ford Explorer, Lincoln Aviator, and Mercury Mountaineer applications
- Cross-references Dorman - OE Solutions 521-381 and MOOG RK620668 for the same application
- SK521381 part number for ordering and catalog lookup
Detailed Description
SK521381 is a rear left upper suspension control arm and ball joint assembly made for specific Ford Explorer, Lincoln Aviator, and Mercury Mountaineer fitments. It is the correct style of replacement when the original upper control arm and ball joint assembly has wear, looseness, or damage that affects suspension alignment and road feel. This part cross-references Dorman - OE Solutions 521-381 and MOOG RK620668 for the same application. Use SK521381 when servicing 2002-2005 Ford Explorer, 2003-2005 Lincoln Aviator, or 2002-2005 Mercury Mountaineer rear left upper suspension locations.
Common Issues This Part Can Address
- Excessive play in the rear suspension linkage
- Clunking or knocking from a worn control arm assembly
- Uneven tire wear caused by suspension looseness
- Alignment instability after component wear
- Reduced handling precision in the rear suspension
Installation Notes and Tips
Verify the rear left upper position and confirm vehicle fitment before installation. Inspect related suspension bushings, fasteners, and alignment settings during service, and perform a wheel alignment after replacement if required by the repair procedure.
Quality Assurance
SKP replacement suspension components are cataloged for direct-fit service applications and are identified by part number SK521381 for accurate ordering and verification.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2005 | Ford | Explorer | — | Rear Left Upper | — |
| 2005 | Lincoln | Aviator | — | Rear Left Upper | — |
| 2005 | Mercury | Mountaineer | — | Rear Left Upper | — |
| 2004 | Ford | Explorer | — | Rear Left Upper | — |
| 2004 | Lincoln | Aviator | — | Rear Left Upper | — |
| 2004 | Mercury | Mountaineer | — | Rear Left Upper | — |
| 2003 | Ford | Explorer | Limited | Rear Left Upper | — |
| 2003 | Ford | Explorer | Postal | Rear Left Upper | — |
| 2003 | Ford | Explorer | XLS | Rear Left Upper | — |
| 2003 | Ford | Explorer | Eddie Bauer | Rear Left Upper | — |
| 2003 | Ford | Explorer | XLT | Rear Left Upper | — |
| 2003 | Lincoln | Aviator | — | Rear Left Upper | — |
| 2003 | Mercury | Mountaineer | — | Rear Left Upper | — |
| 2002 | Ford | Explorer | Limited | Rear Left Upper | — |
| 2002 | Ford | Explorer | Postal | Rear Left Upper | — |
| 2002 | Ford | Explorer | XLS | Rear Left Upper | — |
| 2002 | Ford | Explorer | Eddie Bauer | Rear Left Upper | — |
| 2002 | Ford | Explorer | XLT | Rear Left Upper | — |
| 2002 | Mercury | Mountaineer | — | Rear Left Upper | — |
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