Dorman 520-547 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-547 suspension control arm and ball joint assembly is engineered for reliable performance in 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 520-547) 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 and includes rubber bushings to absorb vibrations and reduce noise. Mounting hardware is included to facilitate installation, although the ball joint does not have a grease fitting and is press-in mounted for a secure fit.

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 replace worn or damaged control arms and ball joints, restoring proper suspension geometry and handling characteristics.

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 bushings causing suspension play

Installation Notes and Tips

Before installation, verify vehicle compatibility with the Dorman 520-547 part number. The assembly comes pre-greased and includes all necessary bushings and mounting hardware, simplifying the replacement process. Since the ball joint is press-in mounted and threaded, proper tools are recommended to ensure secure installation. Adjustments are not required as this control arm is non-adjustable. Always torque mounting bolts to manufacturer specifications for safety and performance.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 520-547 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. This product is backed by Dorman's limited warranty, providing coverage against defects in materials and workmanship under normal use.