Seat Leon Mk3 5F Inner Window Seal Strip Rear Left N/S Door 5F4839472B

Seat Leon Mk3 5F Inner Window Seal Strip Rear Left N/S Door is an original component from the Doors and door panels group, designed for installation in the rear left section of the vehicle body. The carefully designed sealing profile helps reduce noise, improves cabin acoustic comfort, and supports the protection of the interior against moisture and contaminants. It is a practical solution for users who want to maintain factory fitment and a consistent appearance of the side body area.

Specifications and technical data

• SKU: 5F4839471B
• Mark: Seat
• Condition: Used
• OEM Part Number: 5F4839471B
• Substitutable numbers: 5F4839471B, 5F4 839 471 B
• Location on the vehicle: Rear, Left
• Category: Doors & Door Skins

Purpose and function of the seal

The presented seal has been designed specifically for the rear left door wing of the third-generation Seat Leon. Its task is to create a tight barrier between the door and the body, which limits the ingress of water, dust, and air gusts into the vehicle interior. As a result, the cabin maintains stable operating conditions, and the upholstery elements and electrical installations within the door are better protected against adverse external factors.

Construction and body fitment

The inner seal is profiled to the specific shape of the rear left door, which facilitates installation and ensures proper adhesion along the entire perimeter. The appropriately selected material flexibility allows for the compensation of minor sheet metal deformations while maintaining a stable position of the component during repeated opening and closing of the door. Such a solution promotes even pressure of the door wing against the body and helps reduce unwanted rattling or resonance.

Benefits of using an original seal

Using a factory seal in the rear left door area allows for maintaining the structural integrity of the body and predictable vehicle behavior in daily operation. The main advantages include:

• better maintenance of tightness in the door zone,
• reduction of external noise entering the passenger cabin,
• support for protecting upholstery and internal elements against moisture,
• preservation of the factory contact line between the door and the body.

Consequently, replacing a worn or damaged seal with an original component can positively influence driving comfort and the aesthetics of the side body section.

Component condition and service application

The offered seal comes from the used parts segment, which allows for an economical repair of the door zone while maintaining the original geometry and operating characteristics. This type of component is particularly useful for post-collision service, door replacement, or in the case of gradual wear of the factory seal, when air noise, increased moisture, or problems with proper door closing occur.

Expanding repairs within the door area

If you are planning a comprehensive repair or upgrade of the door zone in your Seat and need other elements from the same group, such as skins, reinforcements, or other door components, check the available parts in the Seat Doors and door panels category.

In the case of broader vehicle service work, it is also worth ensuring the efficiency of systems responsible for stable engine operating conditions. If you are interested in how high temperatures affect the cooling system and how used components can reduce car maintenance costs, check out the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.