Dorman 520-131 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-131 suspension control arm and ball joint assembly is engineered for reliable performance in select Buick, Chevrolet, Oldsmobile, and Pontiac models. Designed to meet regular suspension grade requirements, this assembly offers a pre-greased, bolt-in ball joint for straightforward installation and long-lasting durability.

• Pre-greased ball joint for immediate use
• Includes rubber bushings and mounting hardware
• Steel control arm with casting/forged construction
• Bolt-in ball joint with threaded stud (14 mm diameter)
• Compatible with Buick Achieva, Chevrolet Corsica, Grand Am, and Pontiac Skylark

Product Features and Specifications

This suspension control arm and ball joint assembly from Dorman is constructed from durable steel with a black finish, providing corrosion resistance and strength. The assembly includes rubber bushings to absorb road vibrations and reduce noise. The ball joint is pre-installed and pre-greased, eliminating the need for additional lubrication during installation. Featuring a bolt-in mounting type with a single mounting hole (12.3 mm diameter), the control arm measures up to 288.5 mm in width and 237 mm in length. The ball joint stud is threaded with a 14 mm diameter, ensuring secure attachment to the vehicle's suspension system.

Compatible Vehicles and Applications

This Dorman 520-131 control arm and ball joint assembly is compatible with the following vehicles:

• Buick Achieva
• Chevrolet Corsica
• Chevrolet Grand Am
• Oldsmobile models (specific fitment varies)
• Pontiac Skylark

It is designed for light suspension grade use, suitable for regular driving conditions and maintaining proper suspension geometry.

Common Suspension Issues Addressed

• Worn or damaged control arm bushings causing steering instability
• Loose or failing ball joints leading to uneven tire wear
• Excessive suspension noise or vibration
• Misalignment due to bent or compromised control arms
• Reduced handling performance and vehicle control

Installation Notes and Tips

The Dorman 520-131 assembly comes with all necessary mounting hardware for a complete installation. Since the ball joint is pre-greased and installed, no additional lubrication is required. The bolt-in design simplifies replacement, but proper torque specifications should be followed to ensure safety and performance. It is recommended to have a professional alignment performed after installation to maintain correct suspension geometry.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 520-131 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship.