Dorman 521-739 Suspension Control Arm and Ball Joint Assembly - Front Left Upper Forward

Dorman 521-739 Control Arm Assembly

This Dorman suspension control arm and ball joint assembly is a direct replacement for the original equipment on select Hyundai applications. Built for the front left upper forward position, it supports smooth ride quality, directional stability, and predictable suspension response on the Hyundai Genesis and Hyundai Equus.

• Direct replacement suspension control arm and ball joint assembly
• Pre-greased for ready-to-install service
• Ball joint installed with a press-in mounting design
• Steel control arm construction with black finish
• Rubber bushings included for OE-style suspension isolation
• Mounting hardware included
• Threaded ball joint stud with 14 mm thread diameter

OE-Style Suspension Replacement

The Dorman 521-739 is engineered as a direct-fit suspension control arm assembly for the front left upper forward location. It includes the ball joint and bushings already installed, helping restore proper suspension geometry and steering feel on 2009-2014 Hyundai Genesis and 2011-2013 Hyundai Equus models, plus 2014 Hyundai Equus vehicles built through 2/04/14. This part cross-references Mevotech Supreme CMS90181 for the same application.

Common Repair Applications

• Front-end clunking or looseness from worn control arm bushings
• Steering wander or reduced directional stability
• Uneven tire wear caused by suspension wear
• Ball joint play in the front left upper forward suspension position
• Restoring OE-style suspension alignment after component wear

Installation Notes

Verify vehicle fitment by year, model, and position before installation. This assembly is pre-greased and includes the ball joint and bushings, with a press-in ball joint design and threaded stud. Professional alignment is recommended after replacement to confirm suspension geometry and steering performance. Compatible With 2009-2014 Hyundai Genesis, front left upper forward; 2011-2013 Hyundai Equus, front left upper forward; and 2014 Hyundai Equus, front left upper forward, to 2/04/14.

Quality Assurance

Dorman evaluates this suspension control arm and ball joint assembly through an industry-focused validation process to support consistent ride quality, directional stability, and predictable handling characteristics. Part number 521-739 is built as a direct replacement for specific OE applications.