Dorman 539-933 Suspension Ball Joint - Front Lower

Dorman 539-933 Front Lower Ball Joint

Dorman 539-933 is a threaded, bolt-in suspension ball joint built as a direct replacement for specific Toyota front lower applications. It is precision-engineered and tested for reliable OE-style service on 1986-1989 Toyota 4Runner and Toyota Pickup models with front lower fitment.

Key Features

• Threaded, bolt-in suspension ball joint for front lower installation
• Steel construction with grey finish
• Premium suspension grade type
• Greaseable design with grease fitting not included
• Dust boot included with polychloroprene material
• Castle nut included and cotter pin hole provided
• Mounting hardware included; mounting hole quantity: 4
• Stud type: tapered; wrench size: 12 mm
• Cross-references MOOG Chassis Products K9587 for the same application

Detailed Description

This Dorman suspension ball joint, part number 539-933, is made for front lower service on 1986-1988 Toyota 4Runner and Toyota Pickup, plus 1989 Toyota 4Runner and Toyota Pickup built to 3/89. The steel, threaded assembly is designed for bolt-in mounting and includes a dust boot, castle nut, and mounting hardware details that support a proper OE-style repair. The greaseable design and tapered stud help maintain serviceability and secure fitment in the suspension system. This part cross-references MOOG Chassis Products K9587 for the same application.

Common Repair Uses

• Front suspension looseness or play
• Clunking or popping from the lower control arm area
• Uneven tire wear related to worn ball joint joints
• Steering instability or wandering on Toyota 4Runner and Toyota Pickup
• Restoring front lower suspension geometry after wear

Installation Notes and Tips

Fits 1986-1988 Toyota 4Runner, front lower. Fits 1986-1988 Toyota Pickup, front lower. Fits 1989 Toyota 4Runner, front lower, to 3/89. Fits 1989 Toyota Pickup, front lower, to 3/89. Confirm the vehicle build date and front lower position before installation. Inspect the mating suspension components, fasteners, and alignment settings during replacement. The tapered stud and bolt-in design should be installed to the vehicle’s specified torque values.

Quality Assurance

Dorman states this ball joint is precision-engineered and rigorously tested to provide a reliable replacement for the original equipment on specific vehicles. The part is built to premium suspension standards for consistent fit and function in the intended Toyota applications.