Skoda Fabia Mk1 6Y Rear Door Window Seal Gasket Rubber Left N/S 6Y6839439

Skoda Fabia Mk1 6Y Rear Door Window Seal Gasket Rubber Left N/S is a factory-original component from the Window seals and trims category, designed for installation in the rear left door. It is responsible for guiding the window tightly, reducing noise, and protecting the door interior from moisture and contaminants, which translates into more comfortable and stable vehicle operation.

Specifications and technical data

• SKU: 6Y6839439
• Mark: Skoda
• Condition: Used
• OEM Part Number: 6Y6839439
• Substitutable numbers: 6Y6839439, 6Y6 839 439
• Location on the vehicle: Rear, Left
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and function of the seal

The presented seal has been designed specifically for the rear left door area in the first-generation Skoda Fabia model. Its task is to maintain proper sealing between the window and the door frame, which helps to limit the ingress of water, dust, and air drafts into the door structure.

A properly selected window seal also contributes to the stable operation of the window lifting mechanism, reducing play and unwanted vibrations. As a result, the window moves more smoothly, and the risk of scratches and accelerated wear of the guiding elements is reduced.

Benefits of using an original Skoda seal

Using a component from the Skoda range means maintaining factory dimensional tolerances and the shape of the rubber profile. This translates into:

• secure fit to the rear left door frame,
• proper adhesion to the window surface,
• maintenance of the factory level of acoustic insulation,
• reduced risk of leaks after rain or car washes.

Choosing an original seal is particularly important for precisely fitted body components, where even minor deviations can result in rattling, wind noise, or improper window operation.

Installation characteristics

The seal is intended for installation in the rear left part of the body, in the door area. The design, tailored to the specific model, facilitates installation in place of the factory element without the need for modifications or profile adjustments. With proper installation, it is possible to restore the original tightness and comfort of using the rear door.

The item comes from the used parts segment, which allows for economical repair while maintaining the original geometry and material characteristics. This is a practical solution when replacing a seal after mechanical damage, wear and tear, or bodywork and paint interventions.

Application in service practice

Replacing the window seal in the rear left door is recommended, among other situations, when the following occur:

• water streaks in the area of the door upholstery or sills,
• noticeable wind noise at higher speeds,
• difficult operation of the window lifting mechanism,
• visible cracks, deformations, or dry rot of the rubber.

Selecting a component compatible with the first-generation Skoda Fabia design allows for restoring proper window operating conditions and limiting further degradation of the door interior, including the risk of corrosion of metal elements.

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

Support in choosing used components

When selecting used body and equipment components, it is worth considering not only the price but also the compatibility of markings and the actual technical condition. The approach described in the guide regarding larger assemblies may be helpful – many principles of verification and selection by markings also apply to smaller body parts. You can find more practical tips in the article Why it is worth buying used gearboxes and engines – facts instead of myths.