Dorman 520-720 Suspension Control Arm and Ball Joint Assembly - Front Upper Forward

Durable Suspension Control Arm and Ball Joint Assembly for Audi A8 Models

The Dorman 520-720 suspension control arm and ball joint assembly is engineered to restore precise handling and suspension performance for Audi A8, A8 Quattro, and S8 vehicles. 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
• Constructed from durable steel with a black finish
• Pressed attachment type with a single mounting hole (12.3 mm diameter)
• Ball joint installed with a pinch bolt stud type
• Control arm dimensions: maximum length 237 mm, maximum width 288.5 mm
• Light suspension grade type suitable for regular driving conditions

Product Details and Specifications

This Dorman suspension control arm and ball joint assembly (part number 520-720) is designed specifically for Audi A8, A8 Quattro, and S8 models. The control arm is made from forged and cast steel, providing strength and durability required for suspension components. It comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to absorb vibrations and reduce noise, enhancing ride comfort. The assembly features a pressed attachment type and includes all necessary mounting hardware for a straightforward replacement process. The ball joint is installed and secured with a pinch bolt stud, ensuring a secure fit and proper suspension articulation.

Compatible Vehicles and Applications

• Compatible with Audi A8 models
• Fits Audi A8 Quattro variants
• Suitable for Audi S8 performance models
• Designed for light suspension grade use in regular driving conditions

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing suspension noise or vibration
• Loose or failing ball joints affecting steering stability
• Corroded or weakened control arm structure compromising vehicle handling
• Uneven tire wear due to suspension misalignment
• Reduced ride comfort from deteriorated suspension components

Installation Notes and Tips

Installation of the Dorman 520-720 control arm and ball joint assembly requires basic suspension repair tools and mechanical knowledge. Since the ball joint comes pre-installed and pre-greased, no additional lubrication is necessary. Ensure the mounting hole (12.3 mm diameter) aligns correctly with the vehicle’s suspension points. Torque all mounting hardware to manufacturer specifications. It is recommended to perform a wheel alignment after installation to maintain proper suspension geometry and tire wear.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 520-720 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use.