Dorman 580-002 Suspension Ball Joint - Front Lower Outer

Dorman 580-002 Front Lower Outer Ball Joint

Dorman 580-002 is a steel suspension ball joint built as a direct replacement for the original equipment on select BMW applications. It is precision-engineered and tested for dependable fitment in the front lower outer position on BMW 3 Series and M3 models.

Key Features

• Steel construction for suspension service durability
• Pressed mounting type with taper attachment
• Threaded stud with 12 mm stud thread diameter and 1.5 mm thread pitch
• Polymer bearing material for controlled joint movement
• Polychloroprene dust boot material
• Mounting hardware included
• Standard suspension grade type
• Non-greaseable, non-adjustable design

Detailed Description

This Dorman suspension ball joint, part number 580-002, is made for the front lower outer position on select BMW 318i, 318is, 325e, 325es, 325i, 325is, and M3 models. It is a pressed-in replacement with a threaded stud and taper attachment, matching the service requirements of the original suspension layout. The steel housing, polymer bearing, and protective dust boot are specified for consistent operation in the front suspension assembly.

This part cross-references Delphi TC2101 and Mevotech Supreme MS10558 for the same application.

Vehicle Fitment

• Fits 1984-1985 BMW 318i, front lower outer.
• Fits 1991 BMW 318i, front lower outer.
• Fits 1991-1992 BMW 318is, front lower outer.
• Fits 1984-1987 BMW 325e, front lower outer.
• Fits 1986-1987 BMW 325es, front lower outer.
• Fits 1987-1993 BMW 325i, front lower outer.
• Fits 1987-1991 BMW 325is, front lower outer.
• Fits 1988-1991 BMW M3, front lower outer.

Common Repair Uses

• Front suspension looseness at the lower outer joint
• Clunking or knocking from the front end over bumps
• Uneven tire wear related to worn suspension geometry
• Steering play caused by excessive ball joint movement
• Restoring proper front suspension articulation on BMW 3 Series and M3 models

Installation Notes and Tips

Installation requires pressing the joint into the control arm or suspension arm, depending on the vehicle configuration. Verify the 41 mm housing press-fit diameter, stud thread size, and taper engagement before assembly. Because this is a non-greaseable design, inspect the dust boot and surrounding suspension components during service. Confirm exact vehicle application by year, model, and front lower outer position before installation.

Quality Assurance

Dorman states that this replacement ball joint is precision-engineered and rigorously tested to provide reliable service on the specified vehicles. The part is built to OE-style requirements for the listed BMW applications.