Dorman 520-479 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Overview of Dorman Suspension Control Arm and Ball Joint Assembly

The Dorman 520-479 suspension control arm and ball joint assembly is designed specifically for Mazda RX-8 models. This pre-greased, aluminum control arm assembly offers a reliable replacement option for light suspension grade applications, ensuring proper vehicle handling and alignment.

• Pre-greased for immediate installation
• Includes rubber bushings and mounting hardware
• Machined ball joint with threaded stud for secure fit
• Constructed from durable aluminum with a black finish
• Compatible with Mazda RX-8 suspension systems

Detailed Product Features and Specifications

This suspension control arm and ball joint assembly (part number 520-479) features a casting/forged aluminum control arm designed for light suspension grade use. The assembly comes pre-greased and includes rubber bushings to absorb road vibrations and improve ride quality. The ball joint is machined and installed with a threaded stud type, providing a precise and secure mounting. The control arm measures a maximum length of 237 mm and a maximum width of 288.5 mm, with a single mounting hole diameter of 12.3 mm. The black finish offers corrosion resistance and a clean appearance under the vehicle.

Compatible Vehicles and Application

This Dorman suspension control arm and ball joint assembly is compatible with Mazda RX-8 models. It is designed to replace worn or damaged control arms and ball joints, restoring proper suspension geometry and vehicle stability.

Common Issues Addressed by This Control Arm Assembly

• Excessive suspension noise or clunking
• Uneven tire wear due to misalignment
• Loose or unstable steering feel
• Vibration or harshness during driving
• Worn or damaged bushings and ball joints

Installation Notes and Tips

Installation of the Dorman 520-479 control arm assembly requires basic suspension knowledge and tools. Since the part comes pre-greased and includes mounting hardware, it simplifies the replacement process. Ensure the vehicle is properly supported and aligned after installation. Torque specifications should be followed according to Mazda RX-8 service manuals to maintain safety and performance.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards. This suspension control arm and ball joint assembly undergoes quality checks to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship.