SKP SK521355 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Front Left Upper Control Arm Assembly

SKP SK521355 is a suspension control arm and ball joint assembly for the front left upper position. It is built for direct replacement service on select Ford Explorer, Ford Explorer Sport Trac, and Mercury Mountaineer applications from 2006-2010.

• Fits 2006-2010 Ford Explorer, front left upper
• Fits 2007-2010 Ford Explorer Sport Trac, front left upper
• Fits 2006-2010 Mercury Mountaineer, front left upper
• OE-style replacement for suspension service on the upper front left corner
• Part number SK521355 for application matching and catalog lookup

Detailed Application Coverage

This SKP control arm assembly is a direct-fit suspension component for the front left upper position on the listed Ford and Mercury platforms. It is commonly searched as a front left upper control arm and ball joint assembly for 2006-2010 Ford Explorer, 2007-2010 Ford Explorer Sport Trac, and 2006-2010 Mercury Mountaineer. This part cross-references Dorman OE Solutions 521-355 for the same application.

Common Repair Uses

• Restoring worn upper suspension pivot points
• Addressing looseness or play in the front left upper suspension
• Replacing a noisy or damaged ball joint assembly
• Correcting uneven tire wear related to upper control arm wear
• Repairing steering response affected by suspension wear

Installation Notes

Verify vehicle year, make, model, and front left upper position before installation. After replacement, a professional wheel alignment is recommended to confirm suspension geometry and steering wheel centering. Compare the removed part to SK521355 and the vehicle fitment listing before beginning service.

Quality Assurance

SKP SK521355 is cataloged as a suspension control arm and ball joint assembly for the specified Ford Explorer, Ford Explorer Sport Trac, and Mercury Mountaineer applications. Interchange references include MOOG Chassis Products RK80723 and OE-style cross-reference 521-355 for fitment verification.