Moog RK623950 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Forward

Mercedes-Benz Front Left Lower Forward Control Arm

Moog RK623950 is a premium suspension control arm and ball joint assembly for the front left lower forward position. It is built for Mercedes-Benz S-Class applications where structural strength, corrosion protection, and precise suspension geometry matter.

Compatible with select 2014-2020 Mercedes-Benz S550, S550e, S600, S450, S560, S560e, Maybach S600, and Maybach S650 models, this assembly provides a direct-fit service part for the front left lower forward location. The Moog RK623950 is a practical replacement when restoring steering response and front suspension integrity on Mercedes-Benz S-Class vehicles.

Key Features

• Premium-grade suspension control arm and ball joint assembly
• Includes the ball joint for a complete service replacement
• Includes bushings for proper arm support and isolation
• Engineered for structural strength
• Built with corrosion protection for long-term durability
• Direct application for the front left lower forward position

Detailed Description

Moog RK623950 is designed for foreign and domestic nameplates, with this application focused on Mercedes-Benz S-Class front suspension service. The assembly combines the control arm, ball joint, and bushings in one premium replacement part, helping restore the original suspension relationship between the chassis and wheel assembly. For drivers searching for a Mercedes-Benz S550 front left lower forward control arm, or a front left lower forward control arm for Mercedes-Benz Maybach S650, this part number provides a targeted fitment solution.

This part cross-references Delphi TC8403 and Dorman - OE Solutions 526-275 for the same application. It also references Moog RK623950 for ordering and catalog matching.

What It Helps Address

• Front-end looseness or play from worn control arm components
• Noisy suspension movement caused by deteriorated bushings or ball joint wear
• Uneven steering feel during lane changes or cornering
• Suspension geometry issues related to a worn front left lower forward arm
• Restoration of front suspension support on Mercedes-Benz S-Class models

Installation Notes and Tips

Install this assembly in the front left lower forward position only on the listed Mercedes-Benz applications. Verify year, model, and suspension position before ordering, and inspect adjacent suspension components for wear during replacement. A professional alignment is recommended after installation to confirm proper front-end geometry.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection, with a premium-grade design intended for demanding suspension service on Mercedes-Benz S-Class vehicles.