Dorman 520-471 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Rearward

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-471 suspension control arm and ball joint assembly is engineered for reliable performance in Audi and Porsche vehicles. Designed to meet suspension grade standards, this assembly ensures smooth handling and precise control for models like the Audi A4, A5, and Porsche Macan.

• Pre-greased for immediate use without additional lubrication
• Includes rubber bushings for vibration dampening and noise reduction
• Machined ball joint mounting with threaded stud for secure fitment
• Constructed from lightweight aluminum with a black finish for corrosion resistance
• Compatible with multiple Audi and Porsche models including A4 Quattro, S4, Q5, and RS5

Technical Details and Construction

This suspension control arm and ball joint assembly features a casting/forged aluminum control arm that balances strength and weight savings. The assembly comes pre-greased and includes rubber bushings to absorb road shocks and reduce noise. The ball joint is installed and features a machined mounting type with a 14 mm threaded stud, ensuring a precise and secure connection. The control arm measures up to 288.5 mm in width and 237 mm in length, with a single mounting hole diameter of 12.3 mm. This assembly is designed for light suspension grade applications and is not adjustable.

Compatible Vehicles and Applications

This Dorman 520-471 control arm and ball joint assembly is compatible with a range of Audi and Porsche models, including:

• Audi A4, A4 allroad, A4 Quattro, S4
• Audi A5, A5 Quattro, S5, RS5
• Porsche Macan, Q5, SQ5, and allroad variants

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing poor handling
• Loose or failing ball joints leading to steering instability
• Corroded or bent control arms affecting wheel alignment
• Excessive suspension noise or vibration
• Reduced suspension performance impacting ride quality

Installation Notes and Tips

Before installation, verify vehicle compatibility with the Dorman 520-471 part number. The assembly comes pre-greased and includes bushings and ball joint installed, simplifying the replacement process. Use proper torque specifications for the 12.3 mm mounting hole and 14 mm ball joint stud to ensure secure fitment. Since this control arm is not adjustable, alignment should be checked and corrected after installation.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for durability and fitment. The 520-471 assembly undergoes rigorous quality control to ensure reliable performance in Audi and Porsche vehicles. Warranty coverage details should be confirmed with the product documentation or supplier.