Mercedes W639 Rear Fixed Glass Window Seal Gasket Left Right N/O/S A6396713120

Mercedes W639 Rear Hinged Body Window Seal is an original part from the Window Seals and Trim group, designed for the rear hinged body window. Thanks to its factory fit for the Mercedes W639 body, it ensures a tight seal for the window, limits water and noise ingress, and supports the correct operation of the hinged mechanism. This is a practical solution for users who want to restore the proper functionality and aesthetics of the rear body section.

Specifications and technical data

• SKU: A6396713120
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6396713120
• Substitutable numbers: A6396713120, A 639 671 31 20
• Location on the vehicle: Rear, Right, Left
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Vehicle Application and Placement

The seal is designed for installation in the rear section of the body, at the hinged body window. The design allows for application on both the right and left sides of the vehicle, making it easier to select the correct part for collision repairs or when replacing worn components. This solution promotes consistent window seating geometry and proper pressure along the entire perimeter.

Sealing Function and Body Protection

The primary function of the seal is to maintain proper sealing between the window and the body. A correctly selected profile limits the ingress of rainwater, moisture, and dirt into the vehicle's interior, and also reduces air noise during driving. This results in better protection of the rear cabin against corrosion of body parts and accelerated wear of upholstery and electrical installations located near the window.

Original Origin and Fit for Mercedes W639

The seal comes from the Mercedes offering, which means adherence to factory manufacturing standards and geometry tailored to the specific W639 body generation. The original mounting profile facilitates installation on the body edge and cooperation with the hinged window mechanism, without the need for modifications or forcing the part into place. This solution promotes stable mounting and reduces the risk of leaks during operation.

Characteristics of a Used Part

The product is offered as a used part, which means it may show signs of previous use while maintaining its sealing and mounting functions. For many users, this represents a favorable compromise between repair costs and maintaining the original manufacturer's specifications. For window seals, the continuity of the material, flexibility, and correct adhesion geometry to the window and body are paramount.

Benefits of Using an Original Rear Hinged Window Seal

• Better fit to the body shape compared to universal aftermarket alternatives.
• Stable seating of the hinged window and reduced play during driving.
• Improved acoustic comfort in the rear cabin by reducing air noise.
• Supports anti-corrosion protection of the rear area by limiting moisture ingress.
• Can be used on the right or left side, simplifying planning for body and window repairs.

Complementary Mercedes Window Seals and Trim

If you are planning a comprehensive repair or upgrade of the side and rear glazing area in your Mercedes and need other parts from the same group, such as additional side window seals, trim strips, or sealing profiles, check the available parts in the Mercedes Window Seals and Trim category.

More About the Advantages of Used OEM Parts

If you want to better understand how using used original parts affects vehicle downtime and repair costs, it's worth reading the article describing the practical aspects of such solutions: Immediate Availability of Car Parts vs. Repair Time – How Used OEM Parts Shorten Workshop Stays?.