Mercedes-Benz ML GL W164 Front Right O/S Control Arm Bottom Wishbone Rod

Mercedes ML GL W164 Front Right Control Arm A1643303507 is a component from the control arms and ball joints category, designed for the front right suspension of the vehicle. It is responsible for stable wheel guidance, precise geometry maintenance, and safe transfer of loads from the road to the body, which translates into confident handling and predictable vehicle behavior.

Specifications and technical data

• SKU: A1643303507
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1643303507
• Substitutable numbers: A1643303507, A 164 330 35 07, A1643303007, A 164 330 30 07, A1643302607, A 164 330 26 07, A1643301807, A 164 330 18 07
• Location on the vehicle: Front, Right
• Category: Control Arms, Ball Joints & Assemblies

Purpose and Function in Suspension

The front right control arm in Mercedes ML and GL W164 models operates at a critical point in the suspension system. It connects the steering knuckle to the body, maintaining the correct wheel position relative to the ground. A properly selected control arm limits undesirable changes in wheel toe and camber, which affects:

• driving stability at higher speeds,
• even tire wear,
• braking effectiveness and ABS/ESP system operation,
• comfort in absorbing unevenness.

This component is particularly important in heavier SUVs, where the suspension handles greater dynamic and static loads.

Construction and Role in the "Control Arms and Ball Joints" Category

The front control arm belongs to the group of components responsible for wheel guidance and works in conjunction with ball joints and other suspension elements. In practice, this means that it:

• provides a rigid yet flexible connection between the wheel and the body,
• transfers longitudinal and lateral forces generated during acceleration, braking, and cornering,
• contributes to the handling characteristics typical of Mercedes ML and GL SUVs.

Thanks to its appropriate shape and mounting points, the control arm works with the shock absorber, spring, and stabilizer bar, forming a cohesive front axle suspension system.

Vehicle Placement and Importance of Correct Selection

The presented control arm is intended for the front right side of the vehicle. Selecting the correct component for this position is crucial because:

• each side of the vehicle has different mounting geometry,
• an incorrect control arm may prevent installation or lead to improper wheel alignment,
• correct placement affects the proper functioning of ball joints and rubber-metal bushings.

Before installation, it is recommended to verify compatibility with the specific body and engine version based on vehicle data and the OEM part number.

Benefits of Using an Original Mercedes Control Arm

Choosing a control arm dedicated to the W164 series allows for the preservation of factory handling and comfort parameters. The most important benefits include:

• compatibility with factory suspension geometry – no need for mounting modifications,
• seamless cooperation with other system components,
• appropriate operating characteristics of ball joints and bushings, tailored to the vehicle's weight and purpose,
• the ability to restore original driving characteristics after suspension repair.

After installation, a wheel alignment is recommended to fully utilize the potential of the new component and ensure even tire wear.

Condition, Application, and Operational Aspects

The offered control arm is a used item, which presents an attractive solution for users seeking technically sound parts at a reasonable price. This type of component allows for economical suspension repair while maintaining the original design specifications.

Before installation, it is worth paying attention to:

• checking for play in ball joints and bushings,
• assessing the condition of mounting surfaces,
• proper tightening of bolts with the suspension loaded to avoid excessive bushing stress.

This approach extends the component's lifespan and reduces the risk of further intervention in the suspension system.

If you need other elements from the Mercedes control arms and ball joints category, check out the Mercedes control arms and ball joints available in our store to complete your suspension repair kit.

For drivers who want to better understand suspension operation and component selection principles, we recommend the guide article "Suspension System – A Comprehensive Guide to Shock Absorbers, Control Arms, and Stabilizers", which discusses practical aspects of operating and diagnosing these components.