Dorman 539-789 Suspension Ball Joint - Front Upper

Dorman 539-789 Front Upper Ball Joint

Dorman 539-789 is a threaded suspension ball joint built as a standard replacement for the original equipment on select Hyundai and Kia applications. It is precision-engineered and tested for reliable service on the front upper suspension position.

Key Features

• Direct replacement suspension ball joint for select vehicles
• Threaded design with press-in mounting type
• Steel construction with grey finish
• Rubber dust boot included
• Standard suspension grade replacement
• 12 mm wrench size and tapered stud design
• Mounting hardware included

Detailed Description

This Dorman suspension ball joint, part number 539-789, is engineered for the front upper suspension location on 2007-2011 Hyundai Azera, 2007-2010 Hyundai Sonata, and 2007-2009 Kia Amanti. It uses a threaded, press-in style design and is built from steel with a rubber dust boot to help protect the joint area from road contamination. The assembly is non-adjustable, non-greaseable, and does not include a castle nut, cotter pin, grease fitting, bushings, or washers.

For shoppers searching for a front upper ball joint for Hyundai Azera, Sonata, or Kia Amanti, Dorman 539-789 provides an OE-style replacement path for the listed applications. This part cross-references MOOG Chassis Products K500072 for the same application.

What It Helps Address

• Excessive play in the front upper suspension joint
• Clunking or knocking from the front suspension
• Uneven tire wear related to worn suspension geometry
• Loose or imprecise steering feel from a worn ball joint
• Inspection failure caused by suspension joint wear

Installation Notes

Verify vehicle fitment by year, make, model, and front upper position before installation. The press-in, threaded design requires proper suspension service tools and correct torque procedures. Because the stud uses a tapered design and the unit is non-adjustable, alignment should be checked after installation. Confirm the existing suspension configuration matches the listed applications for 2007-2011 Hyundai Azera, 2007-2010 Hyundai Sonata, or 2007-2009 Kia Amanti.

Quality Assurance

Dorman states this ball joint is precision-engineered and rigorously tested to provide a reliable replacement for the original equipment on specific vehicles. The part number is 539-789.