Dorman 539-820 Suspension Ball Joint - Front Lower

Dorman 539-820 Front Lower Ball Joint

Dorman 539-820 is a threaded suspension ball joint built as a direct replacement for the original equipment on select Hyundai and Kia vehicles. It is precision-engineered and tested for dependable front suspension service on applications such as the Hyundai Elantra and Kia Optima.

Key Features

• Threaded ball joint design for front lower suspension service
• Steel construction with a grey finish
• Dust boot included to help protect the joint from contamination
• Castle nut included
• Mounting hardware included
• Cotter pin hole provided
• Premium suspension grade type
• Bolt-in mounting type with 2 mounting holes
• Wrench size: 12 mm

Detailed Description

This Dorman suspension ball joint is designed for front lower installation on select 2006-2013 Hyundai and Kia models, including the Hyundai Elantra, Kia Optima, Kia Magentis, Kia Rondo, Kia Forte, Kia Forte Koup, and Kia Forte5. The steel body, threaded stud, and included dust boot support a serviceable OE-style replacement for worn front suspension joints. Part number 539-820 is also referenced in aftermarket interchange listings for applications such as MOOG K500074 and Delphi TC1990.

For buyers searching for a front lower ball joint for 2007-2012 Hyundai Elantra or a replacement ball joint for 2010-2013 Kia Forte, this part matches the listed vehicle coverage and mounting style. The assembly includes a cotter pin hole, uses a bolt-in mounting type, and does not use grease fittings or bushings.

What It Helps Fix

• Front-end looseness or play from a worn lower ball joint
• Clunking or knocking noises from the front suspension
• Uneven tire wear related to suspension joint wear
• Steering instability or vague road feel
• Failed inspection due to excessive suspension movement

Installation Notes and Tips

Verify the vehicle’s year, make, model, and front lower position before installation. This part uses a threaded stud and bolt-in mounting design, so confirm the existing knuckle and mounting points match the listed application. The included castle nut and mounting hardware support installation, and the cotter pin hole should be aligned during final assembly. Part number 539-820 is listed for 2006-2013 Hyundai and Kia front lower applications only.

Quality Assurance

Dorman states that this ball joint is precision-engineered and rigorously tested for reliable replacement performance on specific vehicles. The premium suspension grade construction and OE-style fitment focus make it a practical replacement choice for front suspension repair on the listed Hyundai and Kia models.