Seat Altea Door Window Weatherstrip Rear Outer Left N/S Glass Seal 5P0839477D

Visual condition of the part

The product shows signs of use visible in the photos.

Seat Altea Door Window Weatherstrip Rear Outer Left N/S Glass Seal is a precision-fitted body component responsible for the sealing and aesthetic finish of the window edge. The original design for the Seat brand ensures proper window guidance and stable adhesion to the bodywork, which reduces wind noise and protects against moisture ingress.

Specifications and technical data

• SKU: 5P0839477D
• Mark: Seat
• Condition: Used
• OEM Part Number: 5P0839477D
• Substitutable numbers: 5P0839477D, 5P0 839 477 D
• Location on the vehicle: Rear, Left
• Category: Window Seals, Gaskets & Trims

Purpose and function of the component

The presented seal belongs to the Window seals and trims group and is designed for installation on the rear left door window of the Seat Altea model. The component operates in the contact zone between the glass and the door panel, creating a barrier against water, dirt, and air, while simultaneously stabilizing the glass edge during window operation.

Thanks to its proper profile and fitment to the specific body model, the seal helps maintain the correct geometry of the window track, reducing the risk of jamming, excessive play, or unwanted vibrations while driving.

Benefits of using an original seal

Using an original component for the Seat brand translates into a number of practical operational benefits:

• Stable window circuit sealing – reduction of air drafts and water penetration into the door interior.
• Improved cabin acoustics – noise reduction in the rear part of the body.
• Aesthetic window edge finish – consistent appearance with other body trims and seals.
• Proper window guidance – reduced load on the window lifting and lowering mechanism.

The component is mounted in the rear zone, on the left side of the vehicle, which allows for the restoration of factory window performance parameters in this part of the body without the need for door structure modifications.

Product characteristics and fitment

The outer window seal has been designed as a part dedicated to a specific model, which means its profile, length, and mounting method are adapted to the geometry of the Seat Altea door. As a result, installation is straightforward, without the need for cutting or adjusting universal replacements.

Used condition allows for an economical replacement of the component while maintaining the manufacturer's original specifications. This solution is particularly beneficial for post-accident repairs, removing the effects of door edge corrosion, or replacing worn, perished seals that have ceased to perform their function.

Application in service practice

Replacing the rear left outer window seal is recommended in situations where the following occur:

• visible cracks, abrasions, or deformations of the rubber,
• increased noise in the rear part of the body at higher speeds,
• traces of water or dirt penetrating into the area of the window guides,
• problems with the smooth upward and downward movement of the window.

Using an original seal helps reduce the load on the window lifting mechanism and lowers the risk of accelerated wear of the guides and glass mounting elements. It is a practical service solution that improves vehicle comfort and keeps the body in good technical condition.

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

For drivers interested in a broader approach to servicing premium cars using proven used parts, the article describing safe component selection strategies may be helpful – you can find it here: Luxury within reach – how to service a Porsche legend using proven used parts.