Dorman 540-079 Suspension Ball Joint - Front Lower

Dorman 540-079 Front Lower Ball Joint

Dorman 540-079 is a threaded, press-in suspension ball joint built for front lower applications on select GM full-size trucks and SUVs. It is precision-engineered and tested for reliable OE-style replacement on vehicles such as the Chevrolet Tahoe, GMC Yukon, and Cadillac Escalade.

Key Features

• Front lower suspension ball joint for select 2007-2014 GM applications
• Threaded stud design with 12 mm wrench size
• Steel construction with gray finish
• Dust boot included; polychloroprene boot material
• Premium suspension grade type
• Press-in mounting type for aluminum control arms
• Cross-references MOOG Chassis Products K500007 for the same application

Detailed Description

This Dorman suspension ball joint, part number 540-079, is made for front lower positions on compatible Cadillac Escalade, Chevrolet Tahoe, Chevrolet Suburban 1500, GMC Yukon, and related applications with aluminum arms. The steel body, threaded stud, and included dust boot support a direct replacement approach for worn OE ball joints. Dorman 540-079 is also cross-referenced to MOOG Chassis Products K500007 for the same application.

Compatible With 2007-2014 Cadillac Escalade front lower, 2007-2014 Chevrolet Tahoe front lower, and 2007-2014 GMC Yukon front lower applications, this ball joint is also listed for Chevrolet Avalanche, Cadillac Escalade ESV, GMC Yukon XL 1500, Chevrolet Silverado 1500, and GMC Sierra 1500 front lower positions with aluminum arms. The design focuses on restoring proper suspension connection at the lower control arm.

What It Is Used For

• Replacing a worn front lower ball joint
• Correcting looseness in the front suspension
• Addressing clunking or popping from the lower control arm area
• Restoring steering response affected by joint wear
• Repairing play that can contribute to uneven tire wear

Installation Notes and Tips

Verify vehicle year, make, model, and front lower position before installation. This part uses a press-in mounting type and is specified for applications with aluminum arms. Confirm the threaded stud, 12 mm wrench size, and dust boot fitment during service, and inspect the control arm and surrounding hardware for wear before assembly.

Quality Assurance

Dorman states that this suspension ball joint is precision-engineered and rigorously tested to provide reliable replacement performance for the original equipment on specific vehicles. The part is built as a premium suspension component for direct-fit service on confirmed applications.