Moog RK641383 Suspension Control Arm - Rear Left Upper

OE-Style Rear Left Upper Control Arm

Moog RK641383 is a rear left upper suspension control arm for select Hyundai and Kia applications. It is built with stamped steel construction, a painted black finish, and rubber bushings to support structural strength and corrosion protection in the rear suspension.

Key Features

• Stamped steel arm with black painted finish
• Rubber bushings included
• Regular grade replacement part
• Not pre-greased and no grease fitting included
• Ball joint not included
• Mounting hardware not included
• Fixed design; not adjustable

Detailed Product Information

This Moog control arm is engineered as an OE-style replacement for rear left upper suspension service on Hyundai Sonata, Hyundai XG300, Hyundai XG350, Kia Magentis, and Kia Optima applications. The RK641383 uses stamped steel for added structural support and a painted finish for corrosion resistance, while the included rubber bushings help restore suspension location and movement characteristics. This part cross-references Dorman OE Solutions 521-861 for the same application.

Compatible vehicle coverage includes Fits 2006 Kia Magentis, Rear Left Upper; Fits 2006 Kia Optima, Rear Left Upper; Fits 2001-2005 Hyundai Sonata, Rear Left Upper; Fits 2002-2005 Hyundai XG350, Rear Left Upper; Fits 2001-2005 Kia Magentis, Rear Left Upper; Fits 2001-2005 Kia Optima, Rear Left Upper; Fits 2001 Hyundai XG300, Rear Left Upper; Fits 2000 Hyundai Sonata, Rear Left Upper.

Common Suspension Issues Addressed

• Rear suspension looseness or instability
• Excessive play from worn control arm bushings
• Uneven rear tire wear caused by suspension geometry changes
• Clunking or knocking from the rear suspension area
• Loss of alignment consistency after bushing wear

Installation Notes

Verify rear left upper position and confirm vehicle year, make, and model before installation. Because the ball joint and mounting hardware are not included, inspect related components and reuse or replace hardware as needed based on condition. After installation, a professional alignment is recommended to confirm rear suspension geometry.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection for foreign and domestic nameplates. RK641383 is built to meet OE-style replacement expectations for the listed Hyundai and Kia applications.