Dorman 540-017 Suspension Ball Joint - Front Lower

Dorman 540-017 Front Lower Ball Joint

Dorman 540-017 is a threaded, press-in suspension ball joint built for specific Ford Expedition and Lincoln Navigator front lower applications. It is precision-engineered and tested as a direct replacement for the original equipment part, with a steel body, tapered stud, and dust boot for added joint protection.

Key Features

• Fits 2003-2006 Ford Expedition, front lower
• Fits 2003-2006 Lincoln Navigator, front lower
• Steel construction with gray finish
• Threaded design with press-in mounting type
• Tapered stud with 12 mm wrench size
• Dust boot included for joint protection
• Premium suspension grade type
• Mounting hardware included

Detailed Description

This Dorman suspension ball joint is designed for front lower suspension service on 2003-2006 Ford Expedition and 2003-2006 Lincoln Navigator models. Part number 540-017 uses a steel, threaded construction with a tapered stud to restore proper suspension articulation and steering response where the original joint has worn, loosened, or developed play. The dust boot helps protect the joint from road debris and moisture, supporting long-term service in demanding front suspension locations. This part cross-references MOOG Chassis Products K500060 for the same application.

Common Problems It Can Help Solve

• Front-end clunking or popping from a worn lower ball joint
• Excessive suspension play affecting steering feel
• Uneven tire wear caused by looseness in the front lower suspension
• Loose or unstable handling over bumps and turns
• Inspection failure related to ball joint wear

Installation Notes and Tips

Verify vehicle year, make, model, and front lower position before installation. Because this is a press-in style ball joint, proper removal and installation tools are recommended to avoid damage to the control arm or surrounding components. Inspect the mating suspension parts, fasteners, and alignment settings during service. Confirm the tapered stud and threaded dimensions match the original part before assembly. Compatible With 2003-2006 Ford Expedition front lower and 2003-2006 Lincoln Navigator front lower applications.

Quality Assurance

Dorman manufactures this ball joint as a precision-engineered replacement and subjects it to rigorous testing to support reliable OE-style service on the specified vehicles. Part number 540-017 is built to meet the demands of front suspension repair on Ford Expedition and Lincoln Navigator applications.