Dorman 527-389 Suspension Control Arm and Ball Joint Assembly - Front Lower Rearward

Dorman 527-389 Front Lower Rearward Control Arm

The Dorman 527-389 suspension control arm and ball joint assembly is a direct replacement for specific Tesla applications. It is built for the front lower rearward position and supports smooth ride quality, directional stability, and predictable steering response on Tesla S and Tesla X models.

Key Features

• Direct replacement suspension control arm and ball joint assembly
• Fits Tesla S front lower rearward, 2012-2025
• Fits Tesla X front lower rearward, 2016-2025
• Pre-greased for initial installation
• Ball joint is installed and included
• Steel control arm construction with casting/forged design
• Rubber and steel bushings included
• Mounting hardware included
• Black finish

Detailed Description

Built for OE-style replacement service, this Dorman control arm assembly combines a steel casting/forged construction with an installed ball joint and included bushings for the front lower rearward suspension position. The threaded ball joint stud, bolt-in and machined mounting design, and pre-greased assembly help streamline replacement on Tesla S and Tesla X vehicles. Dorman part number 527-389 is evaluated to support consistent suspension performance, helping restore ride control and steering feel after wear in the original component. This part cross-references MOOG Chassis Products RK623784 for the same application.

Common Problems This Part Can Address

• Clunking or knocking from the front suspension
• Excessive play in the lower control arm or ball joint
• Uneven tire wear caused by worn suspension geometry
• Loose or unstable steering feel
• Directional instability over bumps or during braking

Installation Notes and Tips

Verify vehicle fitment by year, model, and front lower rearward position before installation. Because the ball joint is installed and the assembly is pre-greased, replacement focuses on removing the worn OE unit and transferring the suspension load to the new assembly. After installation, a professional wheel alignment is recommended to confirm suspension geometry and steering wheel centering on Tesla S and Tesla X applications. Confirm all mounting points and fasteners are secured to specification.

Quality Assurance

Dorman evaluates this suspension control arm and ball joint assembly through an industry-leading process to help deliver consistent ride quality, directional stability, and predictable dynamics. Part number 527-389 is engineered as a direct replacement for specific Tesla S and Tesla X front lower rearward applications.