Dorman 538-789 Suspension Ball Joint - Front Lower Inner

Dorman 538-789 Front Lower Inner Ball Joint

Dorman 538-789 is a threaded suspension ball joint built as a standard replacement for the original equipment part on select vehicles. It is precision-engineered and tested for reliable service on the front lower inner suspension position, including 2007-2015 Mini Cooper applications.

Key Features

• Direct replacement suspension ball joint for select Mini Cooper front lower inner applications
• Threaded design with press-in mounting type
• Steel construction with a grey finish
• Rubber dust boot included
• Standard suspension grade replacement
• Stud type: tapered; wrench size: 12 mm
• Mounting hardware included

Product Details

This Dorman suspension ball joint, part number 538-789, is engineered for the front lower inner position on 2007-2015 Mini Cooper models. It uses a steel body, a tapered stud, and a rubber dust boot to support dependable steering and suspension operation in the original equipment location. The threaded, press-in design is intended to match the factory-style service layout for this application. This part cross-references Delphi TC4172 and TC5057 for the same application.

What It Helps Address

• Excessive front suspension looseness
• Clunking or knocking from the front lower inner suspension area
• Uneven steering response caused by worn ball joint components
• Play in the front suspension during inspection
• Replacement needs on Mini Cooper front lower inner suspension service

Installation Notes

Fits 2007-2015 Mini Cooper, front lower inner. Verify the press-in, threaded configuration and stud dimensions before installation. The dust boot is included, and the part is supplied with mounting hardware. Use proper suspension service procedures and confirm alignment after replacement. Dorman 538-789 is also referenced by OE-style interchange numbers and aftermarket cross references for this application.

Quality Assurance

Dorman states this ball joint is precision-engineered and rigorously tested to provide a reliable OE replacement on specific vehicles. The standard replacement design, steel construction, and included dust boot support consistent service in the intended suspension position.