Dorman 520-575 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly for BMW

The Dorman 520-575 suspension control arm and ball joint assembly is engineered to restore precise steering and suspension performance for select BMW models. Designed with quality materials and pre-greased components, this assembly ensures reliable operation and long service life.

• Pre-greased ball joint for immediate use
• Includes rubber bushings and mounting hardware
• Aluminum control arm with black finish for corrosion resistance
• Press-in ball joint with threaded stud for secure fitment
• Compatible with BMW 525i, 525iT, 530i, 535i, 540i, 735i, 735iL, 740i, 740iL, 750iL, and M5 models

Product Features and Specifications

This suspension control arm and ball joint assembly from Dorman is constructed from forged and cast aluminum, providing a lightweight yet durable component. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce vibration and noise, enhancing ride comfort. The ball joint is press-in mounted with a threaded stud type, ensuring a secure and precise fit. Mounting hardware is included for a complete replacement solution. The control arm measures up to 288.5 mm in width and 237 mm in length, with a mounting hole diameter of 12.3 mm.

Compatible BMW Models and Applications

This Dorman 520-575 assembly is specifically designed for use with various BMW models, including the 525i, 525iT, 530i, 535i, 540i, 735i, 735iL, 740i, 740iL, 750iL, and M5. It is ideal for owners seeking a direct replacement suspension control arm and ball joint assembly that meets original equipment specifications.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Excessive suspension noise or vibration
• Misalignment affecting vehicle handling
• Corrosion or fatigue in original control arm components

Installation Notes and Tips

Installation of the Dorman 520-575 suspension control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint comes pre-installed and pre-greased, no additional lubrication is necessary. Ensure all mounting hardware is torqued to manufacturer specifications. It is recommended to perform a wheel alignment after installation to maintain proper handling and tire wear.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. This suspension control arm and ball joint assembly is backed by Dorman's limited warranty, covering defects in materials and workmanship under normal use.