Dorman 521-020 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

Durable Suspension Control Arm and Ball Joint Assembly for Cadillac CTS

The Dorman 521-020 suspension control arm and ball joint assembly is engineered specifically for Cadillac CTS models. Designed to restore precise steering and suspension performance, this assembly combines a lightweight aluminum control arm with a pre-installed ball joint for reliable operation.

• Pre-greased ball joint for immediate use
• Includes rubber bushings and mounting hardware
• Aluminum control arm with casting/forged construction
• Press-in ball joint with threaded stud (14 mm thread diameter)
• Compatible with Cadillac CTS suspension systems

Product Features and Specifications

This suspension control arm and ball joint assembly (part number 521-020) features a light suspension grade type suitable for regular driving conditions. The control arm is constructed from durable aluminum 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 reduce vibration and noise. The ball joint is press-in mounted and threaded for secure installation, pre-greased to reduce maintenance needs. Mounting hardware is included to facilitate a straightforward replacement process.

Compatible Vehicles and Applications

This Dorman suspension control arm and ball joint assembly is compatible with Cadillac CTS models, providing a direct replacement for worn or damaged suspension components. It is designed to maintain factory suspension geometry and improve vehicle handling and stability.

• Restores proper steering alignment and control
• Eliminates suspension noise caused by worn bushings or ball joints
• Addresses uneven tire wear due to suspension play
• Improves ride comfort by reducing vibration
• Prevents suspension component failure from wear or corrosion

Installation Notes and Tips

Installation of the Dorman 521-020 control arm and ball joint assembly requires basic suspension repair tools. Since the ball joint is pre-installed and pre-greased, no additional greasing is necessary during installation. Ensure the mounting hole aligns correctly with the vehicle’s frame and torque all hardware to manufacturer specifications. It is recommended to have a professional alignment performed after installation to maintain optimal handling and tire wear.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-020 suspension control arm and ball joint assembly undergoes rigorous quality control to ensure durability and performance. This part is backed by Dorman’s limited warranty, providing coverage against defects in material and workmanship under normal use.