Mercedes Vito W639 Windshield Windscreen Wiper Arm Front Left N/S A6398200044

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes Vito W639 Windshield Windscreen Wiper Arm Front Left N/S is an original component from the Wiper arms group, designed for operation on the driver's side of the windshield. This used Mercedes part ensures a factory-fit to the windshield geometry and wiper mechanism, which translates into stable blade operation and effective water removal.

Specifications and technical data

• SKU: A6398200044
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6398200044
• Substitutable numbers: A6398200044, A 639 820 00 44
• Location on the vehicle: Front, Left
• Category: Wiper Arms

Purpose and fitment

The arm is designed for installation at the front of the vehicle, on the left side, which is the driver's side wiper operating zone. The construction is adapted to the kinematics of the wiper mechanism in the Vito W639 model, which allows for maintaining the correct blade operating angle, even pressure on the windshield, and the proper sweeping range.

By maintaining factory mounting parameters and length, the component works with the original wiper base and standard blades intended for this model. This solution reduces the risk of vibrations, skipping, and uncleared zones on the windshield.

Construction and technical specifications

The wiper arm features a rigid, metal construction that transfers torque from the drive mechanism to the blade, ensuring stable operation even at higher driving speeds. The profile of the arm is matched to the shape of the windshield and the position of the pivot axis, allowing for precise guidance of the blade across the glass surface.

In the mounting zone, solutions typical for this generation of Vito are used, allowing for secure seating on the splines or cone of the wiper mechanism. The properly selected elasticity of the arm ensures the correct pressure of the blade against the windshield, which is crucial for the quality of clearing water, mud, and minor debris.

Practical application and benefits of replacement

Replacing the driver's side wiper arm is recommended in situations where symptoms such as uneven blade pressure, skipping across the windshield, noise during operation, or visible deformation of the arm occur. Using an original element from the same model group allows for restoring the correct wiper operating geometry and improving visibility in difficult weather conditions.

Key advantages of installing this arm include:

• factory fitment to the wiper mechanism in the Mercedes Vito W639,
• stable blade operation across the full range of motion,
• maintenance of the manufacturer-intended windshield clearing area on the driver's side,
• reduction of the risk of excessive blade wear resulting from improper pressure.

Characteristics of the used product

The offered wiper arm is a used item, meaning it comes from vehicle dismantling and may show signs of wear typical for this group of parts. This type of component is often chosen as a cost-effective solution while maintaining the manufacturer's original specifications, especially in the case of maintenance repairs or restoring the full functionality of the wiper system.

Before installation, it is recommended to perform a standard check of the mounting socket condition, the elasticity of the arm, and the freedom of movement in the joints, as well as to use a properly selected wiper blade to fully utilize the capabilities of this element.

Related components and additional information

If you are planning a comprehensive repair or upgrade of the windshield visibility zone in your Mercedes and need other elements from the same group, such as additional arms, levers, or brackets, check the available parts in the Mercedes Wiper arms category.

For users preparing their vehicle for the winter season, a guide describing which used components are worth checking before temperatures drop may be useful. Practical checklists and tips can be found in the article Winter essentials: which used car parts are worth checking and replacing before the frost?.