Dorman 520-548 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-548 suspension control arm and ball joint assembly is engineered for reliable performance on Mitsubishi and Plymouth vehicles. Designed specifically for models like the Eclipse, Galant, and Laser, this assembly ensures proper suspension function and vehicle stability.

• Pre-greased for immediate installation and smooth operation
• Includes rubber bushings and mounting hardware for a complete replacement
• Steel construction with casting/forged control arm for strength and durability
• Press-in ball joint with threaded stud for secure mounting
• Compatible with Mitsubishi Eclipse, Galant, and Plymouth Laser models

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 520-548) features a light suspension grade type suitable for regular driving conditions. The control arm is constructed from steel with a black finish, measuring up to 288.5 mm in width and 237 mm in length. It includes one mounting hole with a diameter of 12.3 mm, and the ball joint stud has a 14 mm thread diameter. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to absorb vibrations and reduce noise, while the ball joint is press-in mounted and installed for convenience.

Compatible Vehicles and Applications

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

• Mitsubishi Eclipse
• Mitsubishi Galant
• Plymouth Laser

It is designed to restore proper suspension geometry and improve handling on these models, making it a suitable replacement for worn or damaged control arms and ball joints.

Common Issues Addressed by This Assembly

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

Installation Notes and Tips

Installation of the Dorman 520-548 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and the assembly is pre-greased, it reduces installation time. Ensure the mounting hole aligns correctly with the vehicle’s frame and torque all hardware to manufacturer specifications. This assembly is not adjustable, so proper alignment should be verified after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 520-548 suspension control arm and ball joint assembly undergoes quality checks to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship.