Seat Leon Mk2 1P Door Window Seal Strip Channel Inner Rear Left N/S 1P0839471B

Seat Leon Mk2 1P Door Window Seal Strip Channel Inner Rear Left N/S is a precisely fitted component from the Window seals and trims category, designed for installation on the rear left door. It is responsible for guiding the window tightly from the interior side, reducing noise, vibrations, and the ingress of moisture into the cabin. Thanks to its factory profile, it ensures stable operation of the window lifting mechanism and an aesthetic finish to the door edge.

Specifications and technical data

• SKU: 1P0839471B
• Mark: Seat
• Condition: Used
• OEM Part Number: 1P0839471B
• Substitutable numbers: 1P0839471B, 1P0 839 471 B
• Location on the vehicle: Rear, Left
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and function of the inner seal

The presented seal is a component mounted on the rear left door, on the passenger cabin side. Its function is to:

• guide the window in the correct track during raising and lowering,
• limit lateral play of the window, which reduces the risk of rattling and knocking,
• seal the contact point between the window and the door panel from the interior side,
• protect against the ingress of water and contaminants into the door upholstery area.

Thanks to its proper profile and flexibility, the seal helps maintain acoustic comfort inside the vehicle and improves the overall user experience of the rear cabin area.

Benefits of using an original Seat seal

The original inner door window seal designed for the Seat Leon Mk2 model has been engineered specifically for the body geometry of this car. This translates into several significant advantages:

• Precise fit to the door shape – no need for cutting or forced adjustments, which facilitates installation.
• Stable window guidance – reduction of jams and uneven operation of the lifting mechanism.
• Better acoustic sealing – reduction of wind noise in the rear part of the body at higher speeds.
• Consistent appearance with other door trim elements, with no differences in texture or rubber color.

Choosing an original component from this group allows you to maintain factory window performance parameters and interior aesthetics, which is particularly important during long-term vehicle operation.

Installation characteristics and application

The seal is intended for installation in the rear left zone of the body, within the passenger door. The design of the component allows for the removal of the old seal and the installation of this part using factory mounting points. With proper installation, you achieve:

• even pressure of the seal along the entire length of the window edge,
• no rubber protruding from the metal or upholstery,
• proper adhesion to the window in the closed position.

The element is suitable both for replacing a damaged or perished seal and for renovation work within the rear doors, where restoring correct window operation and interior sealing is crucial.

Part condition and practical aspects

The offered seal comes from the used parts group, which allows for an economical replacement of the component while maintaining the manufacturer's original specifications. This type of solution is often chosen for maintenance repairs when the priority is to maintain factory fitment at reasonable service costs.

If you are considering whether a new replacement or a used OEM component is a better choice in your case, a comparative material may be helpful – you can find a detailed discussion in the article New or used? A comparison of car parts costs and quality.

Expanding the scope of work on Seat windows and doors

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