Dorman 539-729 Suspension Ball Joint - Front Lower

Dorman 539-729 Front Lower Ball Joint

Dorman 539-729 is a threaded suspension ball joint built for specific vehicle applications, including 2002-2004 Acura RSX front lower positions. It is precision-engineered and tested as a direct replacement for the original equipment part, with fitment-focused details that matter during suspension service.

Key Features

• Threaded suspension ball joint for front lower installation
• Fits 2002-2004 Acura RSX, front lower
• Steel construction with a grey finish
• Premium suspension grade type
• Dust boot included with polychloroprene material
• Castle nut included; cotter pin hole provided
• Mounting hardware included
• 12 mm wrench size and tapered stud design

Detailed Description

This Dorman suspension ball joint, part number 539-729, is built for Acura RSX front lower applications from 2002 through 2004. The steel body, threaded design, and tapered stud support a secure OE-style replacement for worn front suspension joints. Dorman 539-729 also cross-references MOOG Chassis Products K90493 for the same application.

For Acura RSX owners searching for a front lower ball joint replacement, this part provides the key service features needed for suspension repair: a dust boot, castle nut, cotter pin hole, and included mounting hardware. The design is non-greaseable and does not include bushings or a grease fitting.

Common Repair Uses

• Restoring front suspension joint movement on a worn Acura RSX
• Addressing looseness or play in the front lower suspension
• Replacing a damaged or noisy ball joint assembly
• Correcting steering feel affected by front suspension wear
• Servicing a failed OE-style lower control arm joint connection

Installation Notes and Tips

Verify the vehicle is a 2002-2004 Acura RSX with a front lower ball joint application before installation. The threaded, press-in style design and tapered stud should be matched to the original suspension layout, and the 12 mm wrench size should be confirmed during service. Inspect the surrounding control arm and mounting points for wear before completing the repair.

Quality Assurance

Dorman positions this ball joint as a precision-engineered replacement that is rigorously tested for reliable OE-equivalent service on the listed vehicles. Part number 539-729 is built to support consistent fit and function for the specified Acura RSX applications.