Moog RK623012 Suspension Control Arm and Ball Joint Assembly - Front Left Lower Forward

Moog RK623012 Front Left Lower Forward Control Arm

Moog RK623012 is a premium suspension control arm and ball joint assembly for the front left lower forward position. It is built for BMW applications that need structural strength, corrosion protection, and a direct-fit suspension service part.

Key Features

• Premium-grade control arm assembly for suspension service
• Ball joint included for a complete front left lower forward replacement
• Bushings included for proper arm mounting and suspension articulation
• Engineered for structural strength and corrosion protection
• Direct replacement for select BMW and Alpina applications

Detailed Description

This Moog control arm assembly is made for front suspension repair where the lower forward arm and ball joint need to be serviced together. The RK623012 is a premium replacement part for select BMW 740i xDrive, 745e xDrive, 750i xDrive, M760i xDrive, 740e xDrive, 640i xDrive Gran Turismo, and Alpina B8 Gran Coupe models. It cross-references Dorman OE Solutions 527-093 for the same application. The RK623012 part number is also referenced by 31106861157, CB15123, and CB15123PR.

What It Helps Fix

• Front-end looseness or wandering caused by worn control arm components
• Clunking or knocking from the front left lower forward suspension area
• Uneven tire wear related to suspension joint wear
• Excessive play from deteriorated bushings or ball joint wear
• Restoration of steering response on BMW 740i xDrive and related models

Installation Notes and Tips

Install this assembly in the front left lower forward position only. Verify vehicle year, model, and suspension configuration before ordering, especially on BMW 7 Series and Alpina applications. After installation, a professional wheel alignment is recommended to confirm suspension geometry and steering wheel position.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection, with bushings and ball joint included for a complete service assembly. Confirm fitment against the vehicle’s original part number and suspension layout before installation.