Dorman 528-229 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

OE-Style Front Left Lower Control Arm

Dorman 528-229 is a suspension control arm and ball joint assembly made as a direct replacement for the original equipment on specific vehicles. It is built for the front left lower position on 2016-2019 Hyundai Sonata and 2017-2020 Kia Optima applications, with fitment focused on restoring stable handling and predictable steering response.

• Direct replacement suspension control arm and ball joint assembly
• Fits 2016-2019 Hyundai Sonata, front left lower
• Fits 2017-2020 Kia Optima, front left lower
• Steel control arm with casting/forged construction
• Pre-greased design with ball joint included and installed
• Rubber and steel bushings included
• Black finish
• Standard replacement grade

Built For Suspension Restoration

Dorman 528-229 is engineered for drivers replacing a worn front lower control arm on a Hyundai Sonata or Kia Optima. The assembly includes the ball joint and bushings, and its machined ball joint mounting with pinch-style stud follows the OE-style layout for the listed applications. This part cross-references MOOG Chassis Products RK623733 for the same application.

What It Helps Fix

• Clunking or knocking from the front suspension
• Loose or inconsistent steering feel
• Uneven tire wear caused by worn suspension geometry
• Directional instability during braking or lane changes
• Excess play from a worn lower control arm or ball joint

Installation Notes

Verify vehicle trim and suspension configuration before installation. This assembly is for the front left lower position only and does not include mounting hardware. Because the ball joint is installed and the unit is pre-greased, installation focuses on replacing the complete worn assembly rather than servicing individual components. Confirm mounting hole diameter and arm dimensions against the original part before final fitment on your 2016-2019 Hyundai Sonata or 2017-2020 Kia Optima.

Quality Assurance

Dorman uses an industry-leading evaluation process for this control arm and ball joint assembly to support smooth ride quality, directional stability, and predictable vehicle dynamics. The part is built as a standard replacement for the listed OE applications and is intended to match the original suspension layout closely.