Moog RK643504 Suspension Control Arm - Front Left Lower Rearward

Moog RK643504 Front Left Lower Rearward Control Arm

Restore precise front suspension geometry with the Moog RK643504 suspension control arm for BMW applications. This premium control arm is built for structural strength and corrosion protection, making it a direct replacement choice for front left lower rearward service on select BMW 5 Series and 6 Series models.

Compatible with BMW 528i, 535i, 550i, 640i, and 650i applications, this part number RK643504 is engineered to meet OEM standards for the suspension control arm and ball joint assembly. It is a fitment-focused solution for drivers addressing wear in the front left lower rearward position.

Key Features

• Premium-grade suspension control arm for BMW front suspension service
• Structural strength engineered for demanding road loads
• Corrosion protection for long-term durability
• Front left lower rearward position
• Meets OEM standards for the control arm and ball joint assembly
• Moog RK643504 for select BMW 5 Series and 6 Series models

Detailed Description

The Moog RK643504 is a premium suspension control arm designed for select BMW vehicles with front left lower rearward fitment. It serves as a direct replacement for worn or damaged control arm assemblies on 2011-2016 BMW 535i, 535i xDrive, 550i, and 550i xDrive; 2014-2016 BMW 528i, 528i xDrive, 535d, and 535d xDrive; 2012-2016 BMW 650i; 2012-2018 BMW 650i xDrive; 2014-2018 BMW 640i xDrive; and 2014-2019 BMW 640i Gran Coupe, 640i xDrive Gran Coupe, 650i Gran Coupe, and 650i xDrive Gran Coupe. This part cross-references Delphi TC3811 for the same application.

Common Replacement Reasons

• Front-end clunking or knocking over bumps
• Uneven tire wear from suspension geometry changes
• Loose or unstable steering feel
• Excessive play in the front left lower rearward suspension arm
• Failed ball joint or worn control arm bushings

Installation Notes and Tips

Verify year, model, drivetrain, and front left lower rearward position before ordering. After installation, perform a professional wheel alignment to confirm suspension angles and steering response. Inspect adjacent suspension components for wear at the same time, especially on higher-mileage BMW 5 Series and 6 Series vehicles.

Quality Assurance

Moog premium control arms are engineered for structural strength and corrosion protection, with OE-standard fitment expectations for the listed BMW applications. Part number RK643504 is built as a premium replacement suspension component for consistent service performance.