Dorman 522-891 Suspension Control Arm and Ball Joint Assembly - Front Left Upper

Overview of Dorman Suspension Control Arm and Ball Joint Assembly

The Dorman 522-891 suspension control arm and ball joint assembly is engineered for select Mercedes-Benz SL-Class models, including SL55 AMG, SL63 AMG, SL65 AMG, SL500, SL550, and SL600. This pre-greased, stamped aluminum control arm with an integrated ball joint offers a reliable replacement option designed to maintain suspension performance and vehicle handling.

• Pre-greased for immediate installation
• Includes rubber bushings and mounting hardware
• Stamped aluminum control arm construction in black finish
• Bolt-in ball joint with threaded stud (14 mm thread diameter)
• Compatible with Mercedes-Benz SL55 AMG, SL63 AMG, SL65 AMG, SL500, SL550, and SL600
• Control arm dimensions: maximum length 237 mm, maximum width 288.5 mm
• Single mounting hole with 12.3 mm diameter
• Light suspension grade type suitable for regular driving conditions

Detailed Product Description

The Dorman 522-891 control arm and ball joint assembly is designed to restore the suspension geometry and steering precision of your Mercedes-Benz SL-Class vehicle. Constructed from stamped aluminum, this control arm provides a balance of strength and reduced weight, contributing to improved suspension response. The assembly comes pre-greased and includes rubber bushings to absorb vibrations and reduce noise. The ball joint is installed and features a bolt-in mounting type with a threaded stud, ensuring secure attachment and ease of replacement. Mounting hardware is included to facilitate installation without the need for additional parts.

Common Applications and Problem Resolution

• Replacement for worn or damaged control arms causing poor handling or uneven tire wear
• Fixes suspension noise related to deteriorated bushings or ball joints
• Restores proper wheel alignment and steering response
• Addresses vibration issues from faulty suspension components
• Suitable for light suspension grade requirements in Mercedes-Benz SL-Class models

Installation Notes and Tips

Installation of the Dorman 522-891 control arm and ball joint assembly requires basic suspension knowledge and tools. Since the ball joint comes pre-installed and the control arm is pre-greased, the process is streamlined. Ensure the vehicle is securely lifted and supported before removal of the old control arm. Verify the mounting hole alignment and torque specifications according to Mercedes-Benz guidelines. Although grease fittings are not included, the pre-greased components reduce maintenance needs immediately after installation.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 522-891 assembly undergoes quality checks to ensure durability and performance. This product includes a limited warranty covering defects in material and workmanship, providing confidence in its reliability for Mercedes-Benz SL55 AMG, SL63 AMG, SL65 AMG, SL500, SL550, and SL600 vehicles.