Dorman 521-434 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 521-434 suspension control arm and ball joint assembly is engineered for reliable performance in Lexus and Toyota vehicles. Designed specifically for models like the 4Runner, FJ Cruiser, and GX470, this assembly ensures proper suspension function and vehicle stability.

• Pre-greased for immediate use and reduced maintenance
• Includes rubber bushings for effective vibration dampening
• Steel boxed control arm construction for enhanced strength
• Press-in ball joint with threaded stud for secure mounting
• Mounting hardware included for straightforward installation

Product Features and Specifications

This suspension control arm and ball joint assembly features a boxed steel control arm finished in black for corrosion resistance. The assembly comes pre-greased, eliminating the need for initial lubrication, and includes rubber bushings to absorb road shocks and reduce noise. The ball joint is press-in mounted with a 14 mm threaded stud, providing a secure and reliable connection. With one mounting hole measuring 12.3 mm in diameter, the control arm measures up to 288.5 mm in width and 237 mm in length. This light suspension grade component is designed for regular use and is not adjustable.

Compatible Vehicles and Applications

This Dorman 521-434 suspension control arm and ball joint assembly is compatible with the following vehicles:

• Lexus GX470
• Toyota 4Runner
• Toyota FJ Cruiser

It is intended for use in suspension repairs where the control arm or ball joint has worn or failed, restoring proper alignment and handling characteristics.

Common Issues Addressed

• Worn or damaged control arm bushings causing suspension noise
• Loose or failing ball joints affecting steering stability
• Corroded or bent control arms compromising vehicle alignment
• Excessive vibration or uneven tire wear due to suspension wear
• Reduced suspension performance impacting ride quality

Installation Notes and Tips

Installation of the Dorman 521-434 assembly requires basic suspension tools and mechanical knowledge. Since the ball joint is press-in mounted and pre-installed, no separate ball joint installation is necessary. Ensure all mounting surfaces are clean and inspect related suspension components during replacement. Torque all fasteners to manufacturer specifications for safety and performance.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. This assembly is pre-greased and includes rubber bushings to maintain durability and performance. While specific warranty details are not provided, Dorman products typically come with a limited warranty against defects in materials and workmanship.