Dorman 538-775 Suspension Ball Joint - Front Lower

Dorman 538-775 Front Lower Ball Joint

Dorman 538-775 is a threaded, press-in suspension ball joint built for front lower applications on select Mercedes-Benz vehicles. It is precision-engineered and tested for dependable OE-style replacement performance on the listed R350, GL-Class, ML-Class, and R-Class models.

Key Features

• Front lower suspension ball joint for select Mercedes-Benz applications
• Threaded design with press-in mounting type
• Steel construction with grey finish
• Rubber dust boot included
• Standard replacement suspension grade
• Mounting hardware included
• 12 mm wrench size and tapered stud design
• Part number 538-775 for catalog and fitment lookup

Detailed Description

This Dorman suspension ball joint is built for front lower suspension service on 2006-2013 Mercedes-Benz R350, 2010-2012 GL350, 2007-2012 GL450, 2008-2012 GL500, 2008-2012 GL550, 2006-2011 ML350, 2010-2011 ML450, 2006-2011 ML500, 2008-2011 ML550, 2007-2011 ML63 AMG, 2007-2009 GL320, 2007-2009 ML320, 2007-2009 R320, 2006-2008 R500, 2008 R550, and 2007 R63 AMG. The steel body, rubber dust boot, and tapered stud support a direct replacement for worn front lower suspension joints, while the standard replacement design helps restore proper steering and suspension connection. Part number 538-775 is also referenced for shoppers comparing OE-style front lower ball joint options for Mercedes-Benz GL-Class, ML-Class, and R-Class vehicles.

This part cross-references Beck/Arnley 101-7021 and Delphi TC2379 for the same application.

Common Repair Symptoms

• Front-end clunking or popping over bumps
• Excessive play in the lower suspension joint
• Uneven tire wear from worn suspension geometry
• Loose or imprecise steering feel
• Inspection failure caused by ball joint wear

Installation Notes and Tips

Press-in installation is required, so proper suspension service tools are recommended. Inspect the surrounding control arm, fasteners, and related wear points before installation. Verify the front lower position and vehicle application by year, make, and model before ordering. The dust boot is included, while a castle nut, cotter pin, grease fitting, bushings, washers, and mounting bolts are not included.

Quality Assurance

Dorman states that this ball joint is precision-engineered and rigorously tested to provide reliable replacement performance for the original equipment part on the listed vehicles. The part is built as a standard replacement suspension component for direct-fit service on confirmed applications.