Dorman 520-805 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Dorman 520-805 Front Left Lower Control Arm

Dorman 520-805 is a direct replacement suspension control arm and ball joint assembly for specific Cadillac, Chevrolet, and GMC applications with aluminum front suspension arms. It is built for the front left lower 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
• Pre-greased with the ball joint installed
• Aluminum control arm construction with rubber bushings
• Press-in ball joint design with threaded stud
• Mounting hardware included
• Light-duty suspension grade, regular grade type
• Silver finish

OE-Style Suspension Replacement

This Dorman 520-805 assembly is built for vehicles that use aluminum lower control arms and a front left lower suspension layout. The casting/forged aluminum arm, press-in ball joint, and included bushings are selected to match the original suspension architecture and help maintain consistent alignment behavior. This part cross-references MOOG Chassis Products RK620888 for the same application.

Compatible With 2014-2016 Chevrolet Silverado 1500, front left lower; 2015-2016 Cadillac Escalade and Escalade ESV, front left lower; 2015-2016 Chevrolet Tahoe, front left lower; 2015-2016 GMC Yukon and Yukon XL, front left lower; and 2014-2016 GMC Sierra 1500, front left lower, with the listed aluminum-arm and RPO-code requirements.

Common Problems This Part Can Address

• Clunking or looseness from a worn lower ball joint
• Uneven tire wear caused by suspension play
• Steering wander or reduced directional stability
• Ride quality changes from deteriorated control arm bushings
• Suspension noise during braking, turning, or road impacts

Installation Notes

Verify aluminum-arm fitment and the listed RPO code requirements before ordering. This assembly uses a press-in ball joint and threaded stud, so proper suspension service tools and alignment procedures are recommended after installation. Mounting hardware is included, and the unit is pre-greased for service readiness.

Quality Assurance

Dorman subjects this control arm and ball joint assembly to an industry-leading evaluation process to support consistent fit, ride quality, and suspension performance. Part number 520-805 is engineered as a direct replacement for specific OE applications and is backed by Dorman’s product development standards.