Dorman 540-021 Suspension Ball Joint - Front Left Lower

Dorman 540-021 Front Left Lower Ball Joint

Dorman 540-021 is a bolt-in suspension ball joint engineered as a direct replacement for the original equipment on select Ford applications. It is built with a steel body, black finish, and dust boot to support dependable front suspension service on the 2013-2019 Ford Escape and 2016-2018 Ford Focus.

Key Features

• Precision-engineered replacement suspension ball joint for OE-style service
• Steel construction with black finish
• Bolt-on, bolt-in mounting design with 3 mounting holes
• Dust boot included; grease fitting not included
• Standard suspension grade replacement
• Fits the front left lower position on select Ford Escape and Ford Focus models
• Part number 540-021 for catalog and service identification

Detailed Description

This Dorman suspension ball joint is designed for the front left lower location on 2013-2019 Ford Escape and 2016-2018 Ford Focus models. The assembly uses a pinch-style stud, a 21 mm wrench size, and a bolt-on mounting layout with three mounting holes and included mounting hardware. With a steel housing and polychloroprene dust boot, it is built to replace worn OE hardware in the front suspension while maintaining the original mounting style. If you are searching for a front left lower ball joint for Ford Escape or Ford Focus, Dorman 540-021 provides a direct-fit service part for these confirmed applications. This part cross-references MOOG Chassis Products K500481 for the same application.

What It Helps Address

• Front-end looseness or play from a worn ball joint
• Clunking or popping noises from the lower suspension area
• Uneven tire wear related to suspension joint wear
• Steering instability caused by degraded front left lower joint components
• Restoration of proper suspension articulation on Ford Escape and Ford Focus models

Installation Notes and Tips

Verify the front left lower position before installation and confirm the mounting hole pattern, stud type, and dimensions against the removed part. This is a bolt-in style ball joint, so proper torque and clean mounting surfaces are important for correct seating. Always inspect adjacent suspension components, including control arms and bushings, when replacing a worn ball joint on a Ford Escape or Ford Focus.

Quality Assurance

Dorman states that this suspension ball joint is precision-engineered and rigorously tested to provide a reliable replacement for the original equipment on specific vehicles. Part number 540-021 is built for standard suspension replacement service and is listed for confirmed fitment on 2013-2019 Ford Escape front left lower and 2016-2018 Ford Focus front left lower applications.