Dorman 524-803 Suspension Control Arm - Front Left Lower Forward

Durable Suspension Control Arm for BMW Models

The Dorman 524-803 suspension control arm is engineered to provide reliable performance and precise handling for select BMW vehicles. Designed with quality materials and construction, this control arm supports suspension integrity and vehicle stability.

• Constructed from lightweight aluminum with a coated black finish for corrosion resistance
• Includes a rubber bushing with a black color and precise dimensions for optimal fit
• Features a welded ball joint mounting type with a threaded stud (ball joint not included)
• Overall length of 262.5 mm with a press-in end type and bushing linkage end
• Compatible with BMW 525xi, 528i xDrive, 528xi, 530xi, 535i xDrive, and 535xi models

Technical Details and Construction

This suspension control arm is made from cast and forged aluminum, combining strength and lightweight properties to maintain suspension geometry and improve vehicle handling. The black coated finish helps protect against rust and wear. The included rubber bushing, with an inside diameter of 14.3 mm and outside diameter of 39.6 mm, is designed to absorb vibrations and reduce noise. The ball joint mounting is welded with a threaded stud type, allowing for secure attachment (note: ball joint is not included). The control arm measures 262.5 mm in length, ensuring proper fitment for the specified BMW models.

Compatible BMW Models and Applications

This Dorman suspension control arm (part number 524-803) is compatible with the following BMW vehicles:

• BMW 525xi
• BMW 528i xDrive
• BMW 528xi
• BMW 530xi
• BMW 535i xDrive
• BMW 535xi

It is designed to replace worn or damaged control arms, restoring suspension performance and vehicle stability.

Common Issues Addressed by This Control Arm

• Excessive suspension noise or clunking during driving
• Uneven tire wear caused by misaligned suspension components
• Reduced steering responsiveness or vehicle handling instability
• Vibrations transmitted through the suspension system
• Visible damage or wear to existing control arm or bushings

Installation Notes and Tips

Installation of the Dorman 524-803 suspension control arm requires proper tools and mechanical knowledge. The control arm comes with the rubber bushing pre-installed but does not include the ball joint or mounting hardware. Ensure the ball joint is inspected and replaced if necessary. Torque all fasteners to manufacturer specifications and verify alignment after installation to maintain optimal suspension performance.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit and function. The 524-803 control arm undergoes rigorous quality checks to ensure durability and reliability. Please refer to Dorman's warranty policy for specific coverage details.