Dorman 520-577 Suspension Control Arm and Ball Joint Assembly - Rear Left Lower

Dorman 520-577 Rear Left Lower Control Arm

Dorman 520-577 is a direct replacement suspension control arm and ball joint assembly for specific Hyundai Santa Fe applications. It is built for the rear left lower position and engineered to support smooth ride quality, directional stability, and predictable handling.

Key Features

• Direct replacement for the original equipment control arm and ball joint assembly
• Fits 2003 Hyundai Santa Fe, rear left lower, from 12/09/02
• Fits 2004-2006 Hyundai Santa Fe, rear left lower
• Pre-greased for ready-to-install service
• Ball joint is installed and included
• Includes bushings and mounting hardware
• Iron casting/forged control arm construction with rubber bushings
• Press-in ball joint mounting with threaded stud design

Detailed Description

This Dorman 520-577 suspension control arm and ball joint assembly is built for the rear left lower suspension location on select Hyundai Santa Fe models. The assembly uses an iron control arm with rubber bushings and a press-in, pre-installed ball joint to match the original equipment layout. Dorman’s evaluation process focuses on fit, ride control, and consistent suspension response, making this a practical OE-style replacement for worn rear suspension components on the Hyundai Santa Fe.

This part cross-references MOOG Chassis Products RK80345 and Delphi TC3580 for the same application.

What It Helps Address

• Rear suspension looseness or instability
• Clunking or knocking from worn control arm or ball joint components
• Uneven rear tire wear caused by suspension wear
• Imprecise directional control at the rear suspension
• Excess movement from deteriorated bushings

Installation Notes and Tips

Fits 2003 Hyundai Santa Fe, rear left lower, from 12/09/02, and fits 2004-2006 Hyundai Santa Fe, rear left lower. Confirm the rear left lower position before installation and inspect adjacent suspension hardware for wear. Because the ball joint is already installed and the assembly is pre-greased, installation is streamlined compared with rebuilding individual components. Verify alignment after replacement to restore proper suspension geometry.

Quality Assurance

Dorman backs this suspension control arm and ball joint assembly with an OE-style replacement approach and an industry-focused evaluation process aimed at consistent fit and suspension performance.