Dorman 521-669 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Overview of Dorman Suspension Control Arm and Ball Joint Assembly

The Dorman 521-669 suspension control arm and ball joint assembly is designed specifically for Lexus Land Cruiser and Toyota LX470 models. This pre-greased, steel control arm assembly offers a reliable replacement solution for light suspension grade applications, ensuring proper vehicle handling and suspension performance.

• Pre-greased for immediate installation
• Includes rubber bushings and mounting hardware
• Press-in ball joint with threaded stud for secure fitment
• Constructed from durable steel with a black finish
• Compatible with Lexus Land Cruiser and Toyota LX470

Detailed Product Features and Specifications

The Dorman 521-669 control arm assembly features a casting/forged steel construction that provides strength and durability for regular suspension use. It comes pre-greased, eliminating the need for additional lubrication during installation. The assembly includes rubber bushings to absorb road vibrations and reduce noise, enhancing ride comfort. The ball joint is installed and features a press-in mounting type with a 14 mm threaded stud, ensuring a secure and precise fit. This control arm has a maximum length of 237 mm and a maximum width of 288.5 mm, with a single mounting hole measuring 12.3 mm in diameter. Mounting hardware is included for a complete installation package.

Compatible Vehicles and Application

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

• Lexus Land Cruiser
• Toyota LX470

It is designed to replace worn or damaged control arms in these models, restoring proper suspension geometry and vehicle stability.

Common Issues Addressed by This Control Arm Assembly

• Excessive suspension noise or clunking
• Uneven tire wear due to misalignment
• Loose or unstable steering feel
• Vibration or harshness over bumps
• Worn or damaged ball joints or bushings

Installation Notes and Tips

Installation of the Dorman 521-669 control arm assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and the control arm is pre-greased, the assembly is ready for immediate installation. Ensure the mounting hole aligns properly with the vehicle’s frame and suspension components. Torque all mounting hardware to manufacturer specifications. It is recommended to perform a wheel alignment after installation to maintain proper suspension geometry and tire wear.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-669 control arm assembly undergoes rigorous quality checks 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.