Dorman 520-459 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Durable Suspension Control Arm and Ball Joint Assembly for Lexus LS400

The Dorman 520-459 suspension control arm and ball joint assembly is engineered to restore precise handling and suspension performance for your Lexus LS400. Designed with quality materials and pre-installed components, this assembly offers a reliable replacement solution for light suspension needs.

• Pre-greased control arm and ball joint for immediate use
• Includes rubber bushings and mounting hardware for a complete installation
• Iron casting/forged control arm construction for strength and durability
• Press-in ball joint with threaded stud for secure mounting
• Compatible with Lexus LS400 models requiring a light suspension grade component

Product Features and Specifications

This Dorman suspension control arm and ball joint assembly (part number 520-459) is designed specifically for the Lexus LS400. The control arm is made from iron using casting and forging processes, providing a robust structure to withstand regular driving conditions. It comes pre-greased, eliminating the need for additional lubrication during installation. The assembly includes rubber bushings to absorb vibrations and reduce noise, enhancing ride comfort.

The ball joint is press-in mounted and features a threaded stud with a 14 mm thread diameter, ensuring a secure fit. Mounting hardware is included, and the control arm has one mounting hole with a diameter of 12.3 mm. The control arm measures up to 288.5 mm in width and 237 mm in length, designed to match the original equipment specifications for the Lexus LS400.

Common Applications and Problem Resolution

• Restores proper suspension geometry and alignment
• Eliminates clunking or knocking noises from worn control arms or ball joints
• Improves steering response and vehicle stability
• Replaces damaged or worn bushings to reduce vibration
• Addresses uneven tire wear caused by faulty suspension components

Installation Notes and Tips

Installation of the Dorman 520-459 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and pre-greased, no additional lubrication is necessary. Ensure the mounting hole aligns correctly with the vehicle’s frame and torque all hardware to manufacturer specifications. This assembly is not adjustable, so proper alignment should be verified after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit and function. The 520-459 suspension control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and performance. This product includes a limited warranty covering defects in materials and workmanship, providing confidence in your replacement part for the Lexus LS400.