Dorman 522-878 Suspension Control Arm and Ball Joint Assembly - Front Right Lower Forward

Dorman 522-878 Front Right Lower Control Arm

Dorman 522-878 is a direct replacement suspension control arm and ball joint assembly for specific BMW applications. It is built for the front right lower forward position and is engineered to restore smooth ride quality, directional stability, and predictable steering response.

• Direct replacement for the original equipment control arm and ball joint assembly
• Fits the front right lower forward suspension position
• Pre-greased for immediate service
• Ball joint is installed and press-in mounted
• Aluminum control arm construction with rubber bushings
• Includes mounting hardware
• Regular grade, light suspension application

OE-Style Suspension Replacement

This Dorman suspension control arm assembly combines the control arm, ball joint, and bushings in one service part for BMW 535i GT xDrive, 550i GT xDrive, 740Ld xDrive, 740Li xDrive, 750i xDrive, 750Li xDrive, 750i, and 750Li applications. The aluminum arm, threaded ball joint stud, and pre-installed ball joint help simplify replacement of worn front suspension components while maintaining the original suspension geometry for the front right lower forward corner. This part cross-references MOOG Chassis Products RK621980 for the same application.

Common Problems This Part Can Address

• Front-end clunking or knocking from a worn ball joint or bushing
• Uneven tire wear caused by suspension looseness
• Steering wander or reduced directional stability
• Excess play in the front right lower forward suspension arm
• Restoring factory-like suspension response after OE wear

Installation Notes and Tips

Verify vehicle fitment by year, make, model, and front right lower forward position before installation. Because the ball joint is press-in and already installed, replacement is typically performed as a complete assembly rather than rebuilding the original arm. After installation, a professional wheel alignment is recommended to confirm suspension angles and steering tracking.

Quality Assurance

Dorman uses an industry-leading evaluation process for this suspension control arm and ball joint assembly to help support consistent ride quality, stability, and predictable handling. Part number 522-878 is built as a direct replacement for specific BMW front suspension applications.