Dorman 526-729 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Forward

Dorman 526-729 Front Left Lower Forward Control Arm

Dorman 526-729 is a direct replacement suspension control arm and ball joint assembly for specific BMW applications. It is built to restore smooth ride quality, directional stability, and predictable steering response on the front left lower forward position.

Compatible With 2015-2021 BMW M3, M4, and M2 applications, this assembly is a practical OE-style replacement for worn front suspension components. The aluminum control arm uses a powder-coated finish and includes a pre-greased ball joint, bushings, dust boot, and mounting hardware for a service-ready installation.

• Direct replacement for the original equipment control arm and ball joint assembly
• Fits 2016-2021 BMW M2, front left lower forward
• Fits 2015-2020 BMW M4, front left lower forward
• Fits 2015-2018 BMW M3, front left lower forward
• Aluminum control arm construction with casting/forged design
• Powder-coated finish for added surface protection
• Pre-greased ball joint with threaded stud and machined mounting type
• Includes bushings, dust boot, and mounting hardware
• Clockwise (right) thread direction

Detailed Fitment and Function

This Dorman suspension control arm and ball joint assembly is engineered for the front left lower forward position on BMW M2, BMW M4, and BMW M3 models listed above. The assembly is intended to replace a worn or damaged OE unit while maintaining the suspension geometry needed for stable handling and consistent road feel. Part number 526-729 is also referenced by Delphi TC3884 and Mevotech Supreme CMS101589 for the same application.

Common Problems This Part Can Address

• Clunking or knocking from the front suspension
• Excessive play in the control arm or ball joint
• Uneven tire wear caused by suspension looseness
• Steering wander or reduced directional stability
• Vibration or imprecise front-end response

Installation Notes and Tips

Verify the front left lower forward position and confirm vehicle fitment before installation. Because this assembly uses a threaded ball joint stud and includes mounting hardware, it is suited for a straightforward replacement service, but final alignment should be checked after installation. Confirm thread direction and suspension orientation during setup to avoid installation errors.

Quality Assurance

Dorman positions this assembly as a standard replacement part backed by an industry-leading evaluation process focused on ride quality, stability, and predictable suspension dynamics. Part number 526-729 is built to meet the needs of BMW M2, BMW M4, and BMW M3 front suspension service where OE-style fit and function are required.