Moog RK622911 Suspension Control Arm and Ball Joint Assembly - Front Right Lower

OE-Style Front Right Lower Control Arm

The Moog RK622911 is a front right lower suspension control arm and ball joint assembly for select Mercedes-Benz applications. It is built with forged aluminum for structural strength and corrosion protection, with rubber bushings already included for a direct replacement service part.

Compatible with Mercedes-Benz B250 and Mercedes-Benz CLA250 front right lower suspension applications, this assembly is a practical OE replacement for restoring steering and suspension geometry. The RK622911 is also a fitment-based match for 2013-2019 Mercedes-Benz B250 and 2014-2019 Mercedes-Benz CLA250 applications listed below.

Key Features

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

Detailed Product Overview

Moog RK622911 is engineered as a suspension control arm and ball joint assembly for the front right lower position. The forged aluminum arm helps provide structural rigidity while supporting corrosion resistance, and the included rubber bushings help replace worn suspension pivot points in one service part. This part number, RK622911, is intended for Mercedes-Benz B250 and Mercedes-Benz CLA250 vehicles listed in the fitment data, including 2013-2019 B250 and 2014-2019 CLA250 applications.

This part cross-references Dorman OE Solutions 524-520 for the same application. Moog premium control arms are built for foreign and domestic nameplates with an emphasis on structural strength and corrosion protection.

Common Problems This Part Can Address

• Clunking or knocking from the front right lower suspension
• Excessive play from worn control arm bushings
• Loose or inconsistent steering response
• Uneven tire wear caused by suspension wear
• Restoring proper suspension alignment after component wear

Installation Notes and Tips

Install RK622911 in the front right lower position only on the listed Mercedes-Benz applications. Verify whether the vehicle has adjustable suspension or variable dampening suspension before ordering, since the fitment notes exclude certain configurations. Because the ball joint is press-in and the stud is threaded, confirm the correct service procedure and inspect related suspension hardware and alignment settings during installation.

Quality Assurance

Moog positions this control arm as a premium replacement part for foreign and domestic vehicles, with attention to structural strength and corrosion protection. The RK622911 is built to meet the OE-style requirements called out in the fitment notes for the listed Mercedes-Benz B250 and CLA250 applications.