Genuine OEM Volkswagen Window Aperture Seal, part number 5G4837479B. This seal is designed to create a weather-tight barrier around the window opening, preventing water, wind, and debris from entering the vehicle's interior. It is installed on the front left side of the window aperture. Measuring approximately 0.825 meters in length, it provides a precise fit. Choosing a genuine OEM seal ensures the correct profile and material composition for optimal sealing performance and durability, maintaining factory levels of noise reduction and weather protection.