Moog RK643148 Suspension Control Arm and Ball Joint Assembly - Front Left Lower

Moog RK643148 Front Left Lower Control Arm

Moog RK643148 is a premium suspension control arm and ball joint assembly for the front left lower position. It is engineered for structural strength and corrosion protection, making it a direct-fit service part for select Mercedes-Benz SUVs and crossovers.

Compatible with Mercedes-Benz GLE400, GLS450, GLS550, GLS63 AMG, GLE350, GLE550e, GLE300d, GLS350d, GL350, GL450, GL550, GL63 AMG, ML250, ML350, ML400, ML63 AMG, and ML550 applications in the front left lower suspension position.

• Premium-grade suspension control arm and ball joint assembly
• Built for structural strength in demanding front suspension service
• Corrosion protection helps support long-term durability
• Direct replacement for select Mercedes-Benz front left lower applications
• Cross-references Mevotech Supreme CMS101376 and OE number 1663300107 for the same application

Vehicle Fitment

• Fits 2016-2019 Mercedes-Benz GLE400, Front Left Lower
• Fits 2017-2019 Mercedes-Benz GLS450, Front Left Lower
• Fits 2017-2019 Mercedes-Benz GLS550, Front Left Lower
• Fits 2017-2019 Mercedes-Benz GLS63 AMG, Front Left Lower
• Fits 2016-2018 Mercedes-Benz GLE350, Front Left Lower
• Fits 2016-2018 Mercedes-Benz GLE550e, Front Left Lower
• Fits 2016-2017 Mercedes-Benz GLE300d, Front Left Lower
• Fits 2017 Mercedes-Benz GLS350d, Front Left Lower
• Fits 2013-2016 Mercedes-Benz GL350, Front Left Lower
• Fits 2013-2016 Mercedes-Benz GL450, Front Left Lower
• Fits 2013-2016 Mercedes-Benz GL550, Front Left Lower
• Fits 2013-2016 Mercedes-Benz GL63 AMG, Front Left Lower
• Fits 2015 Mercedes-Benz ML250, Front Left Lower
• Fits 2012-2015 Mercedes-Benz ML350, Front Left Lower
• Fits 2015 Mercedes-Benz ML400, Front Left Lower
• Fits 2012-2015 Mercedes-Benz ML63 AMG, Front Left Lower
• Fits 2012-2014 Mercedes-Benz ML550, Front Left Lower

Common Uses

• Front-end clunking or looseness from a worn lower control arm
• Uneven tire wear caused by suspension geometry issues
• Steering pull or wandering linked to front suspension wear
• Ball joint wear in the front left lower suspension assembly
• Corrosion-related replacement on higher-mileage Mercedes-Benz suspension components

Installation Notes

Verify the vehicle’s year, model, and front left lower suspension position before ordering. Compare the original part number and mounting points to confirm application match on your Mercedes-Benz GLE, GLS, GL, or ML platform.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection for foreign and domestic nameplates. RK643148 is a premium-grade replacement part built to meet the demands of front suspension service.