Dorman 521-151 Suspension Control Arm and Ball Joint Assembly - Rear Left Lower

Durable Suspension Control Arm and Ball Joint Assembly for Mitsubishi Diamante

The Dorman 521-151 suspension control arm and ball joint assembly is engineered to restore precise steering and suspension performance for your Mitsubishi Diamante. Designed with quality materials and pre-greased components, this assembly ensures reliable operation and long service life.

• Pre-greased ball joint for immediate use
• Includes rubber bushings and mounting hardware
• Steel control arm with casting/forged construction
• Press-in ball joint with threaded stud (14 mm thread diameter)
• Compatible with Mitsubishi Diamante models

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 521-151) features a light suspension grade type suitable for regular driving conditions. The control arm is constructed from durable steel with a black finish, measuring up to 288.5 mm in width and 237 mm in length. It includes one mounting hole with a diameter of 12.3 mm, and the assembly comes complete with rubber bushings to absorb vibrations and reduce noise. The ball joint is installed and press-fitted, eliminating the need for additional assembly, and the threaded stud ensures secure attachment. Mounting hardware is included for straightforward installation.

Compatible Vehicles and Applications

This Dorman suspension control arm and ball joint assembly is specifically designed for Mitsubishi Diamante vehicles. It is ideal for replacing worn or damaged suspension components to maintain proper wheel alignment and handling characteristics.

• Restores steering stability and control
• Eliminates suspension noise caused by worn bushings
• Corrects uneven tire wear due to faulty control arms
• Improves ride comfort by maintaining suspension geometry
• Prevents ball joint looseness and potential failure

Installation Notes and Tips

Installation of the Dorman 521-151 assembly requires basic suspension repair tools. Since the ball joint is pre-installed and pre-greased, it reduces installation time. Ensure the mounting hole aligns correctly with the vehicle frame and torque all fasteners to manufacturer specifications. It is recommended to have a professional alignment performed after installation to optimize handling and tire wear.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards. The 521-151 control arm and ball joint assembly undergoes rigorous quality checks to ensure durability and fitment accuracy. While specific warranty details may vary, Dorman typically offers a limited warranty covering defects in materials and workmanship.