Dorman 521-028 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 521-028 suspension control arm and ball joint assembly is engineered for reliable performance in Chevrolet, Pontiac, and Saturn vehicles. Designed specifically for models like the Captiva Sport, Equinox, Torrent, and Vue, 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 light suspension grade applications

Product Features and Specifications

This Dorman suspension control arm and ball joint assembly (part number 521-028) features a black steel control arm with a maximum width of 288.5 mm and length of 237 mm. The assembly includes rubber bushings to absorb road vibrations and reduce noise. The ball joint is pre-installed and press-fitted, with a 14 mm threaded stud and a 12.3 mm mounting hole diameter, ensuring a precise fit. Mounting hardware is included to facilitate installation without additional parts. This assembly is designed for light suspension grade use and is not adjustable.

Compatible Vehicles and Applications

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

• Chevrolet Captiva Sport
• Chevrolet Equinox
• Pontiac Torrent
• Saturn Vue

It is intended for suspension repairs requiring replacement of the control arm and ball joint assembly to restore proper steering and 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
• Suspension noise due to degraded rubber bushings
• Misalignment resulting from bent or compromised control arms
• Reduced vehicle handling and ride comfort

Installation Notes and Tips

Before installation, verify vehicle compatibility with the Dorman 521-028 part number. The assembly comes pre-greased and includes mounting hardware, simplifying the replacement process. Use proper tools to press out the old ball joint if necessary, and torque mounting bolts to manufacturer specifications. Since this control arm is not adjustable, alignment should be checked and corrected after installation to ensure optimal suspension performance.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 521-028 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 limited warranties covering defects in materials and workmanship to provide confidence in your suspension repair.