Dorman 539-977 Suspension Ball Joint - Front Left Lower

Dorman 539-977 Suspension Ball Joint

Dorman 539-977 is a threaded suspension ball joint built as a direct replacement for the original equipment on select vehicles. It is engineered and tested for dependable front suspension service on the Ram ProMaster City, with fitment for the front left lower position.

Key Features

• Precision-engineered suspension ball joint for OE-style replacement
• Fits 2015-2022 Ram ProMaster City, front left lower
• Threaded, bolt-in mounting design with 3 mounting holes
• Steel construction with gray finish
• Dust boot included for joint protection
• Premium suspension grade type
• 12 mm wrench size and 35.5 mm stud thread length
• Part number 539-977 for easy identification

Detailed Description

This Dorman suspension ball joint is made for the front left lower suspension position on 2015-2022 Ram ProMaster City models. The steel body, threaded design, and bolt-in mounting style support a secure OE-style replacement, while the included dust boot helps protect the joint from road contamination. If you are replacing a worn front suspension ball joint on a Ram ProMaster City, Dorman 539-977 provides a direct-fit service part for the specified application. This part cross-references Monroe Shocks & Struts (e.g., FA83003) for the same application.

What It Helps Fix

• Front suspension looseness or play at the lower ball joint
• Clunking or knocking from the front left suspension
• Uneven tire wear related to worn suspension joints
• Steering instability caused by excessive joint movement
• Inspection failure from a damaged or worn ball joint

Installation Notes and Tips

Verify the vehicle is a 2015-2022 Ram ProMaster City before installation and confirm the front left lower position. Match the threaded, bolt-in mounting style, 3-hole mounting pattern, and 12 mm wrench size to the original part. Inspect surrounding suspension components, fasteners, and the steering knuckle for wear before completing the repair. Professional installation is recommended for suspension service.

Quality Assurance

Dorman tests this replacement ball joint for reliable service on the specified vehicle application. Part number 539-977 is built to replace the original equipment design on the Ram ProMaster City front left lower suspension position.