VW Phaeton GP0 3D Window Seal Door Rear Left N/S Fixed Window Glass 3D4839431CG

VW Phaeton GP0 3D Window Seal Door Rear Left N/S Fixed Window Glass is an original component from the Window seals and trims group, designed for the fixed side window in the rear left door. It ensures a tight fit for the glass, reduces wind noise, improves acoustic comfort inside the vehicle, and ensures proper water drainage from the door area.

Specifications and technical data

• SKU: 3D4839431CG
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3D4839431CG
• Substitutable numbers: 3D4839431CG, 3D4 839 431 CG
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Purpose and function of the seal

The presented seal is dedicated to the rear left body section, where it is responsible for the stable and tight seating of the fixed window in the door. This component:

• prevents water and moisture from entering the door interior,
• minimizes wind noise at higher speeds,
• supports the maintenance of proper glass mounting rigidity,
• protects the glass edges against micro-damage resulting from bodywork movement.

Thanks to its specific profile and fit for the particular model, the seal works in harmony with the door structure, maintaining the factory body line and the aesthetics of the glazing.

Original origin and fitment

As a Volkswagen brand component, the seal has been designed in accordance with the vehicle manufacturer's requirements. This means:

• precise fit to the shape of the rear left door frame,
• compatibility with the factory-fitted fixed window in this location,
• preservation of original mounting and routing points.

Its original origin translates into predictable installation and consistency with other body components, without the need for modifications or adjustments required by aftermarket replacements. This is particularly important in a luxury class model like the Phaeton, where acoustic comfort and visual continuity of the glazing are paramount.

Characteristics of the used component

The seal comes from the secondary market, which allows for maintaining the original specification at a more favorable cost compared to a new part. In practice, this means:

• preservation of the factory profile and geometry,
• possibility of direct installation in place of a worn or damaged seal,
• reduction of the risk of fitment issues typical of some aftermarket replacements.

For users who care about maintaining the vehicle in a configuration close to the factory state, using an original, used seal is often a reasonable compromise between quality and repair cost.

Installation and service application

The rear left window seal is intended for installation in the door area, at the location of the factory-fitted fixed window. When replacing, it is worth paying attention to:

• thorough cleaning of the contact surfaces in the door frame,
• checking the condition of mounts and any clips,
• correct positioning of the seal profile around the entire circumference of the glass.

A correctly installed seal restores tightness in the rear left part of the body, which is important both for driving comfort and for protecting the door interior against corrosion resulting from prolonged moisture.

Related components and technical knowledge

If you are planning a comprehensive repair or upgrade of the side glazing area in your Volkswagen and need other components from the same group, such as additional window seals, trim strips, or guide profiles, check the available parts in the Volkswagen window seals and trims category.

When working with components from the secondary market, it is worth knowing the basic principles of assessing their technical condition and fitment to a specific model. Practical tips on the safe selection of used drivetrain components, sensors, and other sub-assemblies can be found in the guide: Second-hand differential – what you need to know about used differentials, sensors, and drivetrain systems.