Dorman 520-993 Suspension Control Arm and Ball Joint Assembly - Front Left Upper Forward

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-993 suspension control arm and ball joint assembly is engineered for reliable performance in Audi and Volkswagen vehicles. Designed specifically for models like the Audi A6, A6 Quattro, A8 Quattro, Phaeton, and S6, this assembly ensures precise suspension control and improved handling.

• Pre-greased for immediate use and reduced maintenance
• Includes rubber bushings for vibration dampening
• Constructed from durable steel with a black finish
• Ball joint installed with a pinch bolt stud type
• Mounting hardware included for straightforward installation
• Designed as a lateral link with one mounting hole (12.3 mm diameter)
• Control arm dimensions: maximum width 288.5 mm, maximum length 237 mm
• Light suspension grade type suitable for regular driving conditions

Product Features and Specifications

The Dorman 520-993 control arm assembly features a casting/forged steel construction that provides strength and durability. The assembly comes pre-greased, eliminating the need for initial lubrication and helping to extend the lifespan of the ball joint and bushings. Rubber bushings are included to absorb road vibrations and reduce noise, enhancing ride comfort. The ball joint is installed and secured with a pinch bolt stud, ensuring a secure fit and reliable steering response. This part is designed as a lateral link with a single mounting hole, making it compatible with specific Audi and Volkswagen suspension setups.

Compatible Vehicles and Applications

This suspension control arm and ball joint assembly is compatible with the following vehicles:

• Audi A6 and A6 Quattro
• Audi A8 Quattro
• Volkswagen Phaeton
• Audi S6

It is ideal for replacing worn or damaged lateral links in these models, restoring proper suspension geometry and vehicle handling.

Common Issues Addressed by This Part

• Excessive suspension noise or clunking during driving
• Uneven tire wear caused by misaligned suspension components
• Loose or unstable steering feel
• Vibration or harshness transmitted through the suspension
• Worn ball joints or bushings affecting vehicle control

Installation Notes and Tips

Installation of the Dorman 520-993 control arm assembly requires basic suspension knowledge and tools. Since the part comes pre-greased and includes bushings and mounting hardware, it simplifies the replacement process. Ensure the vehicle is securely lifted and supported before removing the old control arm. Torque all fasteners to manufacturer specifications and verify proper alignment after installation to maintain optimal handling and tire wear.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 520-993 assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. While specific warranty details are not provided here, Dorman typically offers limited warranties on their suspension parts to cover defects in materials and workmanship.