Moog RK622910 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Moog RK622910 Front Left Lower Control Arm

The Moog RK622910 is a front left lower suspension control arm and ball joint assembly for select Mercedes-Benz applications. Built with forged aluminum construction, it is made for structural strength and corrosion protection while maintaining OE-style fitment for the listed vehicles.

• Forged aluminum control arm with black finish
• Press-in ball joint mounting type with threaded stud
• Rubber bushings included
• No grease fitting included
• Non-adjustable design

Fitment Details

• Fits 2019 Mercedes-Benz B250, front left lower
• Fits 2013-2017 Mercedes-Benz B250, front left lower
• Fits 2018-2019 Mercedes-Benz CLA250, front left lower, without adjustable suspension
• Fits 2018 Mercedes-Benz B250, front left lower, except variable dampening suspension
• Fits 2014-2017 Mercedes-Benz CLA250, front left lower

This part cross-references Dorman OE Solutions 524-519 and Mevotech Supreme CMS101370 for the same application.

What This Part Helps Address

• Front-end looseness from worn control arm bushings
• Clunking or knocking from a failing ball joint
• Uneven tire wear related to suspension wear
• Steering instability during braking or cornering
• Suspension noise from degraded lower control arm components

Installation Notes

Verify vehicle configuration before ordering, especially for 2018-2019 Mercedes-Benz CLA250 models without adjustable suspension and 2018 Mercedes-Benz B250 models except variable dampening suspension. This front left lower assembly uses a press-in ball joint and includes bushings, so proper suspension service procedures and alignment checks are recommended after installation. Confirm the part number RK622910 against the original component and fitment listing before replacement.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection on foreign and domestic nameplates. RK622910 is built to OE-style standards for the listed Mercedes-Benz B250 and CLA250 applications.