Dorman 521-433 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Durable Suspension Control Arm and Ball Joint Assembly for Lexus and Toyota

The Dorman 521-433 suspension control arm and ball joint assembly is engineered for reliable performance on Lexus and Toyota vehicles, including the 4Runner, FJ Cruiser, and GX470. Designed with quality materials and pre-greased components, this assembly ensures smooth suspension operation and improved vehicle handling.

• Pre-greased for immediate use and reduced maintenance
• Includes rubber bushings and mounting hardware for a complete installation
• Steel boxed control arm construction for enhanced strength and durability
• Press-in ball joint with threaded stud for secure fitment
• Compatible with Lexus 4Runner, Toyota FJ Cruiser, and GX470 models

Product Features and Specifications

This suspension control arm and ball joint assembly from Dorman is built with a boxed steel control arm measuring up to 288.5 mm in width and 237 mm in length, finished in black for corrosion resistance. The assembly includes rubber bushings to absorb road vibrations and a pre-installed ball joint with a 14 mm threaded stud and 12.3 mm mounting hole diameter. The ball joint is press-in mounted, providing a secure and stable connection. Mounting hardware is included to facilitate installation, although the assembly is not adjustable. This light suspension grade component is designed to meet regular grade requirements for everyday driving conditions.

Compatible Vehicles and Applications

This Dorman 521-433 suspension control arm and ball joint assembly is compatible with the following vehicles:

• Lexus 4Runner
• Toyota FJ Cruiser
• Lexus GX470

It is ideal for replacing worn or damaged suspension components to restore proper alignment and handling characteristics.

Common Issues Addressed by This Assembly

• Excessive suspension noise or clunking during driving
• Uneven tire wear caused by worn control arm bushings
• Loose or unstable steering feel due to ball joint wear
• Vibration or poor ride quality from deteriorated suspension components
• Misalignment issues affecting vehicle handling and safety

Installation Notes and Tips

Installation of the Dorman 521-433 suspension control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint is pre-installed and press-fit, no additional ball joint assembly is necessary. Ensure all mounting hardware is securely tightened to manufacturer torque specifications. This assembly is not adjustable, so alignment should be checked and corrected after installation. Pre-greased components reduce the need for immediate lubrication, but periodic inspection is recommended.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-433 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 complete warranty information.