Dorman 521-950 Suspension Control Arm and Ball Joint Assembly - Front Right Upper

Overview of Dorman Suspension Control Arm and Ball Joint Assembly

The Dorman 521-950 suspension control arm and ball joint assembly is designed specifically for Hummer H3 and H3T models. This pre-greased, aluminum control arm assembly offers a reliable replacement solution for light suspension applications, ensuring proper vehicle handling and stability.

• Pre-greased for immediate installation
• Includes rubber bushings and mounting hardware
• Aluminum control arm with black finish
• Press-in ball joint with pinch stud type installed
• Compatible with Hummer H3 and H3T suspension systems

Detailed Product Features and Specifications

This Dorman suspension control arm and ball joint assembly (part number 521-950) features a casting/forged aluminum control arm designed for light suspension grade use. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. It includes rubber bushings to absorb road vibrations and reduce noise, along with mounting hardware for a complete replacement. The ball joint is press-in mounted with a pinch stud type and is installed and ready for use. The control arm measures up to 288.5 mm in width and 237 mm in length, with a mounting hole diameter of 12.3 mm, ensuring precise fitment for Hummer H3 and H3T models.

Compatible Vehicles and Application

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

• Hummer H3
• Hummer H3T

Designed to meet the suspension requirements of these models, the Dorman 521-950 part number ensures proper alignment and suspension performance.

Common Issues Addressed by This Assembly

• Worn or damaged control arm bushings causing steering instability
• Ball joint wear leading to uneven tire wear or clunking noises
• Corroded or bent control arms affecting suspension geometry
• Loose or missing mounting hardware compromising safety
• Reduced suspension responsiveness and ride quality

Installation Notes and Tips

Installation of the Dorman 521-950 suspension control arm and ball joint assembly requires basic suspension repair tools. Since the ball joint is pre-installed and the control arm is pre-greased, the assembly is ready for direct installation. Ensure the mounting hole aligns correctly with the vehicle’s frame and suspension components. Torque all mounting hardware to manufacturer specifications. This assembly is not adjustable, so proper alignment should be verified after installation.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 521-950 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. This product includes a limited warranty covering defects in materials and workmanship, providing confidence in its long-term performance for Hummer H3 and H3T vehicles.