Audi A7 4G Front Door Window Inner Seal Gasket Strip Rubber Left N/S 4G8837479K

Audi A7 4G Front Door Window Inner Seal Gasket Strip Rubber Left N/S is an original body component from the Window seals and trims group, designed for installation on the front left door. It ensures stable window guidance, limits the ingress of water and contaminants into the door interior, and contributes to the smooth operation of the window lifting mechanism.

Specifications and technical data

• SKU: 4G8837479K
• Mark: Audi
• Condition: Used
• OEM Part Number: 4G8837479K
• Substitutable numbers: 4G8837479K, 4G8 837 479 K
• Location on the vehicle: Front, Left
• Category: Window Seals, Gaskets & Trims

Purpose and function of the window seal

The presented window seal is dedicated to the front – left side zone of the Audi A7 4G generation model. The component is mounted on the door edge by the window, where it is responsible for mechanically wiping water from the glass surface and limiting the ingress of dirt into the door interior and guides.

A properly selected window seal contributes to:

• smooth window movement in the guides,
• reduced cabin noise while driving,
• protection of the window regulator mechanism against moisture,
• maintaining a stable window position relative to the door frame.

Construction and fitment for Audi A7 4G

The seal has been designed specifically for the Audi A7 4G body, which ensures a proper fit to the shape of the door and the window line. The original profile geometry allows for correct adhesion to the glass and door metal, which is crucial for maintaining tightness and the proper operation of the entire window system.

Thanks to the use of a component from the same design group as factory body parts, installation is predictable, without the need for modifications or adjustments. This solution is particularly beneficial for post-accident repairs or replacing worn-out consumables in the door zone.

Characteristics of the used component

The offered seal comes from dismantling, which means it is a used part that retains the manufacturer's original specifications. This type of component is a good choice in situations where maintaining factory body fitment and compatibility with existing guides and glass is a priority.

In the case of window seals, it is particularly important that the profile and material hardness are consistent with the factory design – this affects window movement resistance, noise levels, and the durability of the lifting mechanism. Using an original, used component allows these parameters to be maintained at a level similar to factory-fitted solutions.

Benefits of using an original window seal

Replacing a worn or damaged window seal with an original Audi component brings tangible operational benefits:

• reduced internal window fogging due to better water drainage,
• reduced risk of corrosion inside the door by minimizing moisture,
• more stable operation of the window lifting mechanism,
• maintaining the factory level of acoustic comfort in the cabin.

For Audi A7 4G users who want to restore proper window operation after bodywork repairs or simply refresh the door zone, using such a component is a practical and technically sound solution.

Complementary Audi window seals and trims

If you are planning a comprehensive repair or upgrade of the door and window zone in your Audi and need other elements from the same group, such as additional edge seals, window trims, or guide finishing strips, check the available parts in the Audi window seals and trims category.

Why consider used originals

The growing interest in used OEM parts for premium brands stems from their favorable quality-to-cost ratio and better fitment than many aftermarket replacements. In the context of models like the Audi A7 4G, where the precision of body panel fitment has a direct impact on driving comfort, choosing original components from dismantling is often a technically justified solution.

If you want to learn more about the arguments for using used original parts in premium cars, it is worth reading the article: Crisis in the new parts market? Why used originals for premium cars are the hottest trend in 2026.