Dorman 521-069 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Overview of Dorman Suspension Control Arm and Ball Joint Assembly

The Dorman 521-069 suspension control arm and ball joint assembly is designed specifically for Lexus LS400 models. This pre-greased, steel control arm assembly includes rubber bushings and a threaded ball joint stud, providing reliable suspension performance for light suspension grade applications.

• Pre-greased for immediate use
• Includes rubber bushings and mounting hardware
• Steel construction with casting/forged control arm type
• Press-in ball joint with threaded stud (14 mm thread diameter)
• Compatible with Lexus LS400 suspension systems

Detailed Product Description

The Dorman 521-069 suspension control arm and ball joint assembly is engineered to meet the suspension needs of the Lexus LS400. Constructed from durable steel with a casting and forged design, this control arm offers structural integrity and longevity. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to help absorb road vibrations and reduce noise, enhancing ride comfort. The ball joint is press-in mounted and features a threaded stud with a 14 mm diameter, ensuring secure attachment and compatibility with the vehicle’s suspension components. The control arm measures 237 mm in length and 288.5 mm in width, with a single mounting hole of 12.3 mm diameter, designed to fit precisely within the LS400 suspension system.

Common Applications and Problem Solving

• Replacement for worn or damaged suspension control arms on Lexus LS400
• Addresses issues with loose or noisy ball joints
• Resolves suspension misalignment and uneven tire wear
• Improves vehicle handling and steering response
• Restores proper suspension geometry for safer driving

Installation Notes and Tips

Installation of the Dorman 521-069 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and the assembly is pre-greased, it reduces installation time. Ensure the mounting hardware included is used to secure the control arm properly. Verify torque specifications according to Lexus LS400 service guidelines. This control arm is not adjustable, so alignment should be checked and corrected after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-069 suspension control arm and ball joint assembly undergoes quality inspections to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to Dorman’s official warranty policy for complete information.