Moog RK641986 Suspension Control Arm - Rear Lower Forward

Moog RK641986 Rear Lower Forward Control Arm

Moog RK641986 is a rear lower forward suspension control arm for select Mercedes-Benz applications. Built with stamped steel construction, a painted black finish, and rubber bushings, it is made for OE-style suspension service on Mercedes-Benz C300, E-Class, GLC, CLS, and related models.

Key Features

• Stamped steel construction for structural strength
• Black painted finish for added corrosion protection
• Rubber bushings included for suspension isolation
• Rear lower forward position for specific Mercedes-Benz rear suspension layouts
• Premium OE replacement control arm for foreign and domestic nameplates
• Part number RK641986 for catalog and fitment lookup

Detailed Description

Moog RK641986 is engineered as a rear lower forward control arm for Mercedes-Benz rear suspension applications. It is a direct-fit style replacement for vehicles including the 2008-2019 Mercedes-Benz C300, 2010-2016 Mercedes-Benz E350, 2016-2019 Mercedes-Benz GLC300, and other listed C-Class, E-Class, CLS, GLK, and AMG models. The stamped steel body provides the needed rigidity for suspension loading, while the painted black finish helps protect the arm from corrosion exposure. Rubber bushings are included to support ride isolation and suspension articulation. This part cross-references Dorman OE Solutions 522-198 for the same application.

Use RK641986 when replacing a worn rear lower forward arm on Mercedes-Benz models that show looseness, noise, or alignment instability in the rear suspension. The part number RK641986 is also a useful match point when searching for a Mercedes-Benz rear lower forward thrust arm replacement.

What It Helps Address

• Rear suspension clunking or knocking from worn bushings
• Uneven tire wear related to rear suspension geometry
• Loose or unstable rear-end handling
• Alignment drift after suspension wear
• Cracked or fatigued control arm structure

Installation Notes and Tips

Confirm the vehicle’s rear lower forward position before ordering, since this part is application-specific. Mounting hardware is not included. Because the arm is not pre-greased and does not include a grease fitting, inspect adjacent suspension components, bushings, and alignment settings during replacement. A professional alignment is recommended after installation on Mercedes-Benz C300, E350, GLC300, and other listed applications.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection. RK641986 is built to meet the demands of foreign and domestic passenger vehicles and is intended as an OE-style replacement for the listed Mercedes-Benz applications.