Dorman 531-129 Suspension Ball Joint - Front Right Lower

Dorman 531-129 Front Right Lower Ball Joint

Dorman 531-129 is a suspension ball joint built as a direct replacement for the original equipment part on select vehicles. It is engineered for the front right lower position on 1990-1992 Lexus LS400 models and uses a bolt-on design for a precise service fit.

Key Features

• Fits 1990-1992 Lexus LS400, front right lower
• Precision-engineered replacement for OE-style suspension service
• Metal housing and metal bearing material
• Greaseable design with included zerk fitting
• Bolt-on mounting with three mounting holes
• Includes castle nut, cotter pin, and mounting hardware
• Dust boot made from polychloroprene for joint protection
• Stud thread diameter 16 with M1.5 thread pitch

Detailed Description

This Dorman 531-129 suspension ball joint is designed for the front right lower suspension position on 1990, 1991, and 1992 Lexus LS400 vehicles. It features a taper stud, bolt-on attachment, and a standard suspension grade type, making it a practical OE-style replacement for worn front suspension components. The greaseable construction and included zerk fitting support routine service, while the metal bearing and polychloroprene dust boot help maintain joint integrity in daily driving conditions. This part cross-references Mevotech Supreme MS86553 for the same application.

What It Helps Fix

• Front-end looseness or play from a worn lower ball joint
• Clunking or popping noises from the front suspension
• Uneven tire wear caused by suspension joint wear
• Steering instability or wandering on Lexus LS400 models
• Service issues related to a damaged or corroded OE joint

Installation Notes and Tips

Verify the front right lower position before installation and confirm the housing press fit diameter matches the vehicle application. Use the included castle nut and cotter pin during assembly, and follow factory torque specifications for the stud and mounting bolts. Because this is a bolt-on design, inspect the surrounding control arm and mounting points for wear or damage before completing the repair.

Quality Assurance

Dorman designs this suspension ball joint as a precision-engineered replacement and rigorously tests it for reliable service on the specified Lexus LS400 applications. The part number 531-129 is built to meet the needs of front suspension repair where OE-style fit and serviceability matter.