Moog RK622439 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Forward

Moog RK622439 Front Left Lower Forward Control Arm

Moog RK622439 is a suspension control arm and ball joint assembly for select Mercedes-Benz GLK applications. It is built with forged aluminum for structural strength and corrosion protection, and it uses a press-in ball joint with a threaded stud for service-focused OE-style replacement.

Key Features

• Forged aluminum control arm construction
• Press-in ball joint mounting type
• Threaded ball joint stud type
• No grease fitting included
• No bushings included
• Non-adjustable design

Detailed Description

This Moog control arm assembly is engineered for the front left lower forward position on 2010-2015 Mercedes-Benz GLK350 and 2013-2015 Mercedes-Benz GLK250 models. The forged aluminum arm helps maintain suspension geometry while providing corrosion resistance for daily driving conditions. Moog RK622439 is a direct-fit suspension control arm and ball joint assembly for Mercedes-Benz GLK250 and GLK350 front suspension service where OE-level fit and material quality matter.

This part cross-references Dorman OE Solutions 524-523 and Mevotech Supreme CMS101230 for the same application.

What It Helps Address

• Front-end looseness from a worn control arm assembly
• Clunking or knocking from a failing ball joint
• Uneven tire wear caused by suspension wear
• Steering pull or reduced front suspension stability
• Restoration of proper front left lower forward suspension location

Installation Notes and Tips

Fits 2013-2015 Mercedes-Benz GLK250, front left lower forward. Fits 2010-2015 Mercedes-Benz GLK350, front left lower forward. Verify the ball joint mounting style and suspension position before installation. Because this assembly uses a press-in ball joint and does not include bushings or a grease fitting, inspect the surrounding suspension components and replace worn hardware as needed during service.

Quality Assurance

Moog premium control arms for foreign and domestic nameplates are engineered for structural strength and corrosion protection. This RK622439 assembly is built to meet OEM standards for the listed Mercedes-Benz GLK applications.