Dorman 520-691 Suspension Control Arm - Front Left Lower Rearward

Durable Suspension Control Arm for Lexus GS Models

The Dorman 520-691 suspension control arm is engineered to provide reliable performance for Lexus GS300, GS400, and GS430 vehicles. Constructed from high-quality steel with a coated finish, this control arm ensures long-lasting durability and consistent handling.

• Made from robust steel with casting and forging construction
• Includes a black rubber bushing for vibration dampening
• Overall length of 262.5 mm for precise fitment
• Welded ball joint mounting with threaded stud type (ball joint not included)
• Coated black finish for corrosion resistance
• Compatible with Lexus GS300, GS400, and GS430 models

Product Details and Specifications

The Dorman 520-691 suspension control arm features a durable steel construction combining casting and forging methods to withstand the stresses of daily driving. The included black rubber bushing, with an inside diameter of 14.3 mm and an outside diameter of 39.6 mm, helps absorb road vibrations and reduce noise. The control arm measures 262.5 mm in overall length and is finished with a protective coating to resist corrosion. It is designed with a welded ball joint mounting type and a threaded ball joint stud, although the ball joint itself is not included. This control arm is not adjustable and does not come with mounting hardware or grease fittings, making it suitable for direct replacement in compatible Lexus GS models.

Compatible Vehicles and Applications

This suspension control arm is specifically designed for use with the following Lexus models:

• Lexus GS300
• Lexus GS400
• Lexus GS430

Using the Dorman 520-691 control arm helps maintain proper suspension geometry and vehicle stability, ensuring safe and predictable handling characteristics.

Common Issues Addressed by This Control Arm

• Worn or damaged control arm bushings causing excessive play
• Corroded or weakened control arm structure affecting alignment
• Noise and vibration from deteriorated suspension components
• Loose or damaged ball joint mounting points (ball joint replacement may be required separately)
• Uneven tire wear due to suspension misalignment

Installation Notes and Tips

Installation of the Dorman 520-691 suspension control arm requires basic suspension knowledge and appropriate tools. Since the ball joint is not included, inspect the existing ball joint for wear and replace if necessary. Ensure all mounting points are clean and free of corrosion before installation. Torque all fasteners to manufacturer specifications to maintain proper suspension performance. This control arm is a direct replacement part designed to fit the specified Lexus GS models without modification.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 520-691 control arm undergoes rigorous quality checks to ensure durability and reliability. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in material and workmanship. Refer to the product documentation for exact warranty terms.