Mercedes Vito Viano W639 Wiper Motor Window Door Rear Right O/S A6398201008

Mercedes Vito Viano W639 Wiper Motor Window Door Rear Right O/S is a precision component from the Wiper motors and linkages category, designed for operation in the rear right area of the vehicle body. It ensures stable wiper performance, which translates into better visibility and safer vehicle maneuvering in difficult weather conditions. This solution is dedicated to users expecting a proven design tailored to the specifics of the Mercedes Vito W639 model.

Specifications and technical data

• SKU: A6398201008
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6398201008
• Substitutable numbers: A6398201008, A 639 820 10 08, KD
• Location on the vehicle: Rear, Right
• Category: Wiper Linkages, Transmissions & Motors

Purpose and vehicle fitment

The presented wiper motor has been designed for operation in the rear part of the vehicle on the right side, which is crucial for the correct guidance of the wiper arm and its proper operating path. The placement on the vehicle in the rear – right area allows for precise fitment to the factory mounting and electrical installation in the Mercedes Vito W639, without the need for bodywork modifications.

Technical and functional characteristics

The motor belongs to the Wiper motors and linkages group, meaning it is responsible for generating the torque necessary for the smooth movement of the wiper arm. The construction is prepared for operation in variable weather conditions, typical for the rear part of a commercial vehicle body. Properly selected gear ratios and rotation direction ensure a stable operating cycle, which reduces the risk of skipping, jamming, or uneven windshield cleaning.

Thanks to its factory-intended design for a specific Mercedes model, compatibility with the original wiper control system and factory mounting points is maintained. This allows for installation in a configuration similar to the OEM solution, while maintaining the correct geometry of the arm's operation.

Benefits of use in the Mercedes Vito W639

Using a dedicated motor in the rear right part of the vehicle translates into a number of practical benefits:

• consistency with the factory wiper system of the Mercedes Vito W639,
• correct reproduction of the arm's range and speed of movement,
• stable operation under the conditions of intensive commercial vehicle use,
• reduced risk of incorrect installation thanks to the tailored placement on the vehicle.

For the user, this means more predictable behavior of the rear window wiper, which is important when reversing, maneuvering in tight spaces, or in conditions of limited visibility. Dedicated placement on the vehicle also helps avoid problems with the arm colliding with body elements or window seals.

Product condition and practical application

The motor is offered as a used component, which represents a reasonable compromise between cost and functionality, especially in the case of vehicles used intensively for commercial purposes. This type of solution is often chosen for routine repairs when the priority is to restore the efficiency of the wiper system while maintaining a rational service budget. Proper fitment to the specific Mercedes model facilitates workshop work and reduces vehicle downtime.

Wiper system expansion and parts selection

If you are planning a comprehensive repair or upgrade of the rear window visibility zone in your Mercedes and need other components from the same group, such as additional motors, linkages, or mechanisms working with wiper arms, check the available parts in the Mercedes wiper motors and linkages category.

Technical support and selection of used components

When planning repairs for systems in vehicles of various brands, it is worth knowing the typical weak points of individual models – a good example is the power units in popular mid-range cars. A broader context of failure rates and service costs can be found in the article dedicated to problematic engines, available here: Troublesome BMW E90 engines – a practical guide to costly failures.

If you are interested in a broader perspective on choosing components from the secondary market and want to better plan your repair budget, a practical guide on used parts may also be helpful: most frequently chosen original used car parts.