Dorman 527-393 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Forward

Dorman 527-393 Front Left Lower Forward Control Arm

Dorman 527-393 is a suspension control arm and ball joint assembly for specific BMW applications, including the 2017-2023 BMW 530i xDrive, 2017-2023 BMW 540i xDrive, 2018-2023 BMW 530e, 2018-2023 BMW 530e xDrive, and 2018 BMW 540d xDrive in the front left lower forward position. It is built as a direct replacement for the original equipment part and is evaluated for smooth ride quality, directional stability, and predictable handling.

• Direct replacement suspension control arm and ball joint assembly
• Fits BMW 530e, 530e xDrive, 530i xDrive, 540i xDrive, and 540d xDrive applications in the front left lower forward position
• Steel control arm construction with casting/forged design
• Pre-greased and supplied with the ball joint installed
• Includes bushings and mounting hardware
• Black finish for OE-style appearance
• Threaded ball joint stud with 16 mm thread diameter
• Standard replacement grade for service repair

Application Details and Fitment

Compatible with 2017-2023 BMW 530i xDrive, front left lower forward; 2017-2023 BMW 540i xDrive, front left lower forward; 2018-2023 BMW 530e, front left lower forward; 2018-2023 BMW 530e xDrive, front left lower forward; and 2018 BMW 540d xDrive, front left lower forward. This part number, Dorman 527-393, is also cross-referenced to Mevotech Supreme CMS101585 for the same application.

What This Part Helps Address

• Excessive front-end looseness or play from a worn control arm assembly
• Clunking or knocking noises from the front suspension
• Uneven tire wear caused by worn bushings or ball joint wear
• Steering wander or reduced directional stability
• Restoring proper suspension geometry after OE component wear

Installation Notes and Tips

Verify the front left lower forward position before installation and compare the original part to Dorman 527-393 for mounting points, bushing layout, and ball joint style. Because this assembly is pre-greased and includes the ball joint, it is ready for service installation, but final alignment should be checked after suspension work is completed. Confirm vehicle-specific fitment for your BMW 530e, 530i xDrive, or 540i xDrive before ordering.

Quality Assurance

Dorman uses an industry-focused evaluation process to help ensure consistent ride quality, stable handling, and predictable suspension response. The part is engineered as a standard replacement for OE-style service on the listed BMW applications.