Dorman 521-070 Suspension Control Arm and Ball Joint Assembly - Front Right Upper

Overview of Dorman Suspension Control Arm and Ball Joint Assembly

The Dorman 521-070 suspension control arm and ball joint assembly is designed specifically for Lexus LS400 models. This pre-greased, steel control arm assembly offers a reliable replacement solution for light suspension grade applications, ensuring proper vehicle handling and alignment.

• Pre-greased for immediate use without additional lubrication
• Includes rubber bushings for vibration dampening
• Steel construction with casting/forged control arm type for durability
• Press-in ball joint with threaded stud for secure mounting
• Mounting hardware included for straightforward installation
• Compatible with Lexus LS400 suspension systems

Detailed Product Description

The Dorman 521-070 control arm and ball joint assembly is engineered to meet the suspension requirements of the Lexus LS400. Featuring a black steel control arm with a maximum width of 288.5 mm and length of 237 mm, this assembly is built to maintain suspension geometry and vehicle stability. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce noise and absorb road vibrations, contributing to a smoother ride. The ball joint is press-in mounted and includes a threaded stud with a 14 mm thread diameter, ensuring a secure fit within the suspension system. This assembly is designed for light suspension grade use and includes one mounting hole with a diameter of 12.3 mm.

Common Applications and Problem Resolution

• Replacement for worn or damaged control arms on Lexus LS400
• Addresses suspension noise caused by deteriorated bushings
• Restores proper wheel alignment and handling performance
• Eliminates ball joint looseness or play affecting steering control
• Improves ride quality by reducing vibration and harshness

Installation Notes and Tips

Before installation, verify compatibility with your Lexus LS400 model year and suspension setup. The assembly comes pre-greased, so no additional lubrication is necessary. Use appropriate tools to press in the ball joint and secure the threaded stud. Ensure torque specifications are followed for mounting hardware to maintain safety and performance. Since the control arm is not adjustable, alignment should be checked and corrected after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 521-070 suspension control arm and ball joint assembly undergoes quality inspections to ensure durability and performance. While specific warranty details are not provided here, Dorman typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.