Dorman 533-239 Suspension Ball Joint - Front Lower

Dorman 533-239 Front Lower Ball Joint

Dorman 533-239 is a threaded, press-in suspension ball joint for the front lower position on select Ford, Lincoln, and Mercury vehicles. It is precision-engineered and tested as a direct replacement for the original equipment design on the listed applications, including Ford Mustang, Ford Thunderbird, and Mercury Cougar front lower suspension service.

Key Features

• Threaded suspension ball joint for front lower applications
• Press-in mounting type for OE-style service fitment
• Steel construction with grey finish
• Greaseable design with grease fitting not included
• Dust boot included with polychloroprene boot material
• Castle nut included; cotter pin hole provided
• Standard replacement grade for routine suspension repair
• Part number 533-239 for catalog and cross-reference use

Detailed Description

This suspension ball joint is built for vehicles that use a front lower press-in joint, including 1979-1993 Ford Mustang, 1980-1988 Ford Thunderbird, 1985-1988 Ford Cougar, 1981-1994 Lincoln Town Car, and 1978-1983 Mercury Zephyr. It also covers additional front lower applications such as Ford Aerostar, Crown Victoria, LTD, LTD Crown Victoria, Fairmont, and Mercury Marquis, Capri, Colony Park, Grand Marquis, and Mercury Cougar. Dorman 533-239 uses a tapered stud, steel body, and threaded design to match the service requirements of the original suspension layout.

This part cross-references MOOG Chassis Products K8259 and Mevotech Supreme MK8259 for the same application.

What It Helps Repair

• Front suspension looseness or play at the lower control arm
• Clunking or knocking from worn ball joint components
• Uneven tire wear caused by suspension joint wear
• Steering wander related to excessive front-end movement
• Failed dust boot protection on the lower ball joint

Installation Notes and Tips

Install this part only on the listed front lower applications that use a press-in, threaded ball joint design. Verify stud thread length, wrench size, and control arm condition before installation. Because this joint is greaseable, service it according to the vehicle maintenance schedule after installation. Always confirm fitment by year, make, model, and position before ordering.

Quality Assurance

Dorman designs this replacement ball joint to meet the service needs of specific OE applications and subjects it to testing for fit and function on the listed vehicles. Part number 533-239 is intended for direct replacement use on the confirmed fitment range.