Mercedes Vito W639 Wheel Hub Rear Right O/S Suspension Wheel Carrier Axle

The Mercedes Vito W639 Wheel Hub Knuckle Right Rear is an original suspension component from the Shock Absorber and Strut Mounts group, designed for the rear right side of the vehicle. Thanks to its factory geometry and fit to the Mercedes suspension design, it ensures stable wheel guidance, proper shock absorber operation, and predictable vehicle behavior on the road. This is a solution for users seeking parts of proven quality who want to maintain the vehicle's factory handling parameters.

Specifications and technical data

• SKU: A6393508805-2
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6393508805
• Substitutable numbers: A6393508805, A 639 350 88 05, A6393560401, A 639 356 04 01, BG
• Location on the vehicle: Rear, Right
• Category: Shock & Strut Mounts

Purpose and Function in Suspension

The rear right wheel hub knuckle in the Mercedes Vito W639 is responsible for the precise connection of suspension elements, the braking system, and the wheel. Its placement on the vehicle's rear – right side means this component transfers loads from driving, braking, and shock absorber operation, while simultaneously maintaining correct axle geometry.

A properly selected wheel hub knuckle allows you to:

• maintain stable wheel mounting relative to the body,
• ensure correct cooperation with the shock absorber and suspension strut,
• maintain correct wheel alignment angles, which affects handling and tire wear,
• minimize unwanted play and vibrations in the rear of the vehicle.

Construction and Fit for Mercedes Vito W639

The wheel hub integrated with the knuckle has been specifically designed for the rear suspension structure of the Mercedes Vito W639. This means compatibility with factory mounting points for the shock absorber, strut, and other suspension components. As a result, installation is straightforward, without the need for modifications or adaptations.

Key advantages of this solution include:

• factory mounting spacings – facilitating installation and geometry alignment,
• a design intended for operation on the rear axle, on the right side,
• compatibility with the braking system designed for the specific model.

Component Condition and Practical Application

The offered wheel hub knuckle is a used part, allowing for economical repair while maintaining the original Mercedes construction. This type of part is particularly suitable for situations involving mechanical suspension damage, deformation after a collision, or excessive wear of mounting elements.

Replacing the rear right wheel hub knuckle is recommended when the following occur:

• difficult-to-adjust rear axle geometry parameters,
• noticeable play in the wheel or shock absorber mountings,
• signs of mechanical damage to the mountings and knuckle body.

Benefits of Using an Original Component

Using an original wheel hub knuckle dedicated to the Mercedes Vito W639 ensures the integrity of the entire suspension system. Precise fit to the model reduces the risk of installation problems, shortens service time, and simplifies subsequent geometry adjustments. This is particularly important for commercial vehicles, where stable handling and even tire wear translate into safety and operating costs.

Additionally, choosing a component from the Shock Absorber and Strut Mounts group that is consistent with the manufacturer's design helps maintain predictable vehicle behavior under load, when driving with cargo, or on long journeys.

If you are planning a comprehensive repair or upgrade of the rear suspension area in your Mercedes and need other elements from the same group, such as mounts, brackets, or struts, check the available parts in the Mercedes Shock Absorber and Strut Mounts category.

To more precisely select the wheel hub knuckle for a specific Vito version, it is advisable to use the VIN and OEM number. Practical tips can be found in the article Guide: How to Select the Correct Car Part by VIN and OEM Number, which explains the process of verifying the compatibility of used components step by step.