Dorman 521-909 Suspension Control Arm - Rear Lower Forward

Overview of Dorman Suspension Control Arm 521-909

The Dorman 521-909 suspension control arm is engineered for reliable performance in Lexus and Toyota vehicles, specifically designed for the Highlander and RX300 models. Constructed from durable steel with a coated black finish, this control arm offers a solid and corrosion-resistant solution for suspension repairs.

• Made from high-strength steel with a coated black finish for durability
• Includes rubber bushings with a black color for effective vibration dampening
• Tubular construction enhances structural integrity
• Overall length of 262.5 mm for precise fitment
• Ball joint mounting type is welded with a threaded stud (ball joint not included)
• Press-in end type with bushing linkage end for secure installation
• Compatible with Lexus Highlander and Toyota RX300 models

Detailed Product Description

The Dorman 521-909 suspension control arm is designed to restore proper suspension geometry and handling characteristics for Lexus Highlander and Toyota RX300 vehicles. Its tubular steel construction provides strength while maintaining a manageable weight. The control arm features a coated black finish to resist corrosion and extend service life. It comes equipped with a single rubber bushing, sized with an inside diameter of 14.3 mm and an outside diameter of 39.6 mm, which helps absorb road vibrations and reduce noise. The ball joint mounting is welded with a threaded stud type, though the ball joint itself is not included, allowing for flexibility in replacement options. This control arm is a non-adjustable, regular grade component intended for standard suspension setups.

Common Applications and Issues Addressed

• Restores proper wheel alignment and suspension geometry
• Eliminates clunking or knocking noises from worn control arms
• Improves handling stability and steering response
• Replaces damaged or corroded control arms to maintain safety
• Reduces uneven tire wear caused by suspension component failure

Installation Notes and Tips

• Ensure compatibility with Lexus Highlander and Toyota RX300 before installation
• Ball joint must be sourced separately as it is not included with this control arm
• Use appropriate tools to press in bushings and secure mounting points
• Check suspension alignment after installation to maintain proper handling
• Inspect related suspension components for wear during replacement

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. The 521-909 control arm undergoes rigorous quality checks to ensure fit and function. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in materials and workmanship. Refer to Dorman’s official documentation for exact warranty terms.