Dorman 522-870 Suspension Control Arm - Rear Left Upper Forward or Rear Right Upper Forward

Dorman 522-870 Rear Upper Forward Control Arm

Dorman 522-870 is a steel suspension control arm built as a direct replacement for the original rear upper forward lateral arm on select Mercedes-Benz SUVs and wagons. It is precision-engineered and tested for dependable OE-style fit on applications such as the Mercedes-Benz ML350, GL450, and R350.

Key Features

• Steel stamped construction with a coated black finish
• Rubber bushing included with black bushing color
• Welded ball joint mounting type with threaded stud type
• No grease fitting, no ball joint installed, and no mounting hardware included
• Overall length: 262.5 mm
• Direct replacement for rear left upper forward and rear right upper forward positions

Detailed Description

This Dorman suspension control arm, part number 522-870, is designed for rear suspension service on Mercedes-Benz GL-Class, ML-Class, R-Class, and related platforms. The stamped steel arm uses a coated finish for corrosion resistance and includes a rubber bushing to restore proper suspension location and articulation. It cross-references MOOG Chassis Products RK642636 and Delphi TC3281 for the same application.

Compatible With 2006-2013 Mercedes-Benz R350, rear left upper forward and rear right upper forward; 2010-2012 Mercedes-Benz GL350, rear left upper forward and rear right upper forward; 2007-2012 Mercedes-Benz GL450, rear left upper forward and rear right upper forward; 2008-2012 Mercedes-Benz GL500, rear left upper forward and rear right upper forward; 2008-2012 Mercedes-Benz GL550, rear left upper forward and rear right upper forward; 2006-2011 Mercedes-Benz ML350, rear left upper forward and rear right upper forward; 2010-2011 Mercedes-Benz ML450, rear left upper forward and rear right upper forward; 2006-2011 Mercedes-Benz ML500, rear left upper forward and rear right upper forward; 2008-2011 Mercedes-Benz ML550, rear left upper forward and rear right upper forward; 2007-2011 Mercedes-Benz ML63 AMG, rear left upper forward and rear right upper forward; 2007-2009 Mercedes-Benz GL320, rear left upper forward and rear right upper forward; 2007-2009 Mercedes-Benz ML320, rear left upper forward and rear right upper forward; 2007-2009 Mercedes-Benz R320, rear left upper forward and rear right upper forward; 2006-2008 Mercedes-Benz R500, rear left upper forward and rear right upper forward; 2008 Mercedes-Benz R550, rear left upper forward and rear right upper forward; 2007 Mercedes-Benz R63 AMG, rear left upper forward and rear right upper forward. It also fits 2013 Mercedes-Benz GL550 with 164.886 body code in the rear left upper forward and rear right upper forward positions.

What It Helps Address

• Rear suspension looseness or wandering caused by worn control arm bushings
• Clunking or knocking from the rear suspension over bumps
• Uneven rear tire wear related to suspension geometry changes
• Excessive rear-end movement during braking or cornering
• Restoration of proper rear suspension alignment after wear-related failure

Installation Notes and Tips

Verify the rear left upper forward or rear right upper forward position before ordering. Compare the original arm length, bushing style, and mounting layout to confirm match with Dorman 522-870. Because mounting hardware is not included, reuse or source the correct fasteners as needed, and inspect adjacent bushings and links during service.

Quality Assurance

Dorman manufactures this control arm as a precision replacement part and subjects it to testing for fit and function on the listed Mercedes-Benz applications. The design follows OE-style dimensions and construction details to support consistent suspension service on the specified vehicles.