Dorman 522-401 Lateral Arm and Ball Joint Assembly - Rear Lower Forward

Dorman 522-401 Rear Lower Forward Lateral Arm

Dorman 522-401 is a lateral arm and ball joint assembly for specific Kia and Hyundai rear suspension applications. It is built as a direct replacement for the original equipment layout, with a steel arm, pressed attachment, and a pre-greased ball joint already installed.

Key Features

• Direct replacement lateral arm and ball joint assembly for rear lower forward suspension positions
• Steel control arm construction with casting/forged design
• Ball joint included and installed for simplified service
• Threaded ball joint stud type
• Rubber bushings included
• Pre-greased assembly; greaseable design is not required
• Pressed attachment type for OE-style mounting

Detailed Description

This Dorman suspension control arm and ball joint assembly is engineered for rear lower forward placement on select Kia Sportage, Kia Optima, Kia Magentis, Kia Rondo, Hyundai Tucson, and Hyundai ix35 models. The assembly combines the arm, bushings, and ball joint into one service part to restore suspension geometry and rear wheel control on the specified applications. This part cross-references MOOG Chassis Products RK622349 for the same application.

Compatible With: 2010-2016 Kia Sportage, rear lower forward; 2015 Hyundai ix35, rear lower forward; 2010-2015 Hyundai Tucson, rear lower forward; 2007-2012 Kia Rondo, rear lower forward; 2007-2010 Kia Magentis, rear lower forward; 2007-2010 Kia Optima, rear lower forward; 2006 Kia Optima, rear lower forward, 5th digit of VIN is E. Dorman 522-401 is also referenced by part numbers such as 1CB90174 and 102-6130.

What It Helps Fix

• Rear suspension looseness or instability
• Clunking or knocking from worn arm or ball joint components
• Uneven rear tire wear caused by worn suspension geometry
• Excessive play in the rear lower forward control arm area
• Failed rubber bushings or ball joint wear at the rear suspension

Installation Notes and Tips

Install this assembly in the rear lower forward position only on the listed vehicles. Verify the 2006 Kia Optima VIN note before ordering, since the fitment is limited to vehicles with the 5th digit of VIN as E. Because the ball joint is already installed and the assembly uses pressed attachment points, replacement is typically performed as a complete arm service rather than rebuilding individual components.

Quality Assurance

Dorman states that this lateral arm and ball joint assembly is precision-engineered and rigorously tested to provide reliable replacement performance for the original equipment on specific vehicles. The part is built to OE-style specifications for the listed Kia and Hyundai rear suspension applications.