Dorman 520-404 Suspension Control Arm - Front Right Lower

Overview of Dorman Suspension Control Arm for Lexus RX300

The Dorman 520-404 suspension control arm is engineered specifically for the Lexus RX300, providing reliable suspension performance. Constructed from durable iron with a coated black finish, this control arm is designed to maintain proper wheel alignment and vehicle stability.

• Material: Heavy-duty iron construction for strength and durability
• Coated black finish to resist corrosion and wear
• Includes rubber bushing with black color for vibration dampening
• 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 for secure installation
• Compatible specifically with Lexus RX300 models

Detailed Product Features and Specifications

This Dorman suspension control arm (part number 520-404) features a casting and forged construction method, combining strength and durability essential for suspension components. The iron material ensures the arm withstands the stresses of daily driving and road conditions. The black coated finish provides corrosion resistance, extending the service life of the part.

The control arm includes a single rubber bushing with a 14.3 mm inside diameter and 39.6 mm outside diameter, designed to absorb shocks and reduce noise. The bushing length is 92 mm, and the black color matches OEM specifications. The ball joint mounting is welded with a threaded stud type, though the ball joint itself is not included, allowing for compatibility with existing components.

Compatible Vehicles and Application

This suspension control arm is compatible with Lexus RX300 models, ensuring a precise fit and proper suspension geometry. It is designed to replace worn or damaged control arms that affect vehicle handling and alignment.

• Corrects suspension misalignment issues
• Reduces uneven tire wear caused by faulty control arms
• Improves steering response and vehicle stability
• Eliminates clunking noises from worn bushings
• Restores proper suspension articulation and ride comfort

Installation Notes and Tips

Installation of the Dorman 520-404 control arm requires basic suspension knowledge and tools. Since the ball joint is not included, verify the condition of the existing ball joint before installation. The press-in bushing end and welded ball joint mounting provide a secure fit, but proper torque specifications should be followed to ensure safety and performance. It is recommended to have a professional alignment performed after installation to maintain optimal handling.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 520-404 control arm undergoes rigorous quality checks to ensure durability and fitment accuracy. While specific warranty details are not provided here, Dorman typically offers limited warranties on their suspension parts. Refer to official Dorman documentation for exact warranty terms.