Seat Leon Mk3 5F Inner Window Seal Strip Rear Right O/S Door 5F4839472

Seat Leon Mk3 5F Inner Window Seal Strip Rear Right O/S Door is an original body component designed for the precise sealing of the rear right door window. Thanks to its factory profile and specific model fitment, it ensures stable window guidance and limits the ingress of moisture and contaminants into the door interior. This is a practical solution for users looking to restore the proper operation of the window lifting mechanism and maintain the aesthetics of the side bodywork.

Specifications and technical data

• SKU: 5F4839472
• Mark: Seat
• Condition: Used
• OEM Part Number: 5F4839472
• Substitutable numbers: 5F4839472, 5F4 839 472
• Location on the vehicle: Rear, Right
• Part type: Window Seal
• Category: Window Seals, Gaskets & Trims

Purpose and function of the component

The described Seat Leon Mk3 5F Inner Window Seal Strip Rear Right O/S Door has been designed specifically for the third-generation Seat Leon (5F) model, intended for installation in the rear right door. Its function is to:

• seal the contact point between the window and the door panel from the interior side,
• stabilize the window movement during raising and lowering,
• limit the ingress of water, dust, and fine debris into the door interior,
• improve cabin acoustic comfort by reducing external noise.

Thanks to its factory profile, the strip works in harmony with the original window lifting mechanism, which promotes smooth operation of the entire system and reduces the risk of scratching the glass surface.

Construction and body fitment

The strip belongs to the group of body components known as Window seals and strips, which means it has been developed for durable contact with the glass and exposure to varying weather conditions. The seal profile is matched to the shape of the rear right door frame, which enables:

• secure seating in factory mounting points,
• maintenance of the correct geometry of the window edge relative to the door panel,
• a consistent look of the vehicle's side line after installation.

The original Seat origin ensures dimensional compatibility with other door components, such as exterior strips, guides, or perimeter seals.

Installation and operational characteristics

The component is intended for a specific location on the vehicle – the rear right door – which facilitates the identification of the correct side during service work. In practice, this means that:

• there is no need for adjusting or modifying the shape of the strip,
• installation time can be limited to standard procedures of removing the door trim and the old seal,
• the factory line of the window contact with the interior trim is maintained after installation.

As a used part, the strip is a sensible choice for maintenance repairs where the priority is to maintain the original construction while optimizing costs. This allows for restoring proper window sealing without the need to resort to replacements with uncertain fitment.

Application in repairs and upgrades

Replacing the inner window seal strip is particularly recommended in situations where the following occur:

• increased wind noise in the area of the rear right window,
• traces of water or moisture on the door trim,
• difficulties with smooth window movement along the guide,
• visible wear or deformation of the old seal.

Selecting an original component from the same design group allows for maintaining the technical consistency of the entire door system, which is important for both driving comfort and the durability of the window lifting mechanism.

Expanding the scope of service work

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

When selecting body components from the secondary market, it is also worth considering when regeneration is a better solution and when to use a used OEM component – you will find helpful tips in the article Refurbished or used original – which part to choose for repairs?.