Dorman 520-444 Suspension Control Arm and Ball Joint Assembly - Front Right Upper

Durable Suspension Control Arm and Ball Joint Assembly

The Dorman 520-444 suspension control arm and ball joint assembly is engineered for reliable performance in Lexus and Toyota vehicles. Designed specifically for models like the Lexus SC300, SC400, and Toyota Supra, this assembly offers a precise fit and durable construction to maintain suspension integrity.

• Pre-greased for immediate installation and smooth operation
• Includes rubber bushings and mounting hardware for a complete replacement
• Aluminum control arm with a black finish for corrosion resistance
• Press-in ball joint with threaded stud, installed and ready to use
• Compatible with Lexus SC300, SC400, and Toyota Supra models

Product Features and Specifications

This suspension control arm and ball joint assembly from Dorman is crafted from forged and cast aluminum, providing a lightweight yet strong component. The assembly comes pre-greased, eliminating the need for additional lubrication during installation. Rubber bushings are included to reduce vibration and noise, enhancing ride quality. The ball joint is press-in mounted with a threaded stud type, featuring a 14 mm thread diameter for secure attachment. The control arm measures up to 288.5 mm in width and 237 mm in length, with a single 12.3 mm mounting hole for precise fitment. Mounting hardware is included to simplify the replacement process.

Compatible Vehicles and Applications

This Dorman 520-444 control arm and ball joint assembly is compatible with the following vehicles:

• Lexus SC300
• Lexus SC400
• Toyota Supra

It is designed to replace worn or damaged suspension components, restoring proper alignment and handling characteristics for these specific models.

Common Suspension Issues Addressed

• Excessive play or looseness in the suspension control arm
• Worn or damaged ball joints causing steering instability
• Noise or vibration due to deteriorated bushings
• Uneven tire wear from misaligned suspension geometry
• Reduced handling performance and ride comfort

Installation Notes and Tips

Installation of the Dorman 520-444 assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and pre-greased, no additional lubrication is necessary. Ensure all mounting hardware is securely tightened to manufacturer torque specifications. It is recommended to have a professional alignment performed after installation to maintain proper suspension geometry and tire wear.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 520-444 assembly undergoes rigorous quality control to ensure durability and performance. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship. Refer to Dorman’s official documentation for exact warranty terms.