Genuine OEM Volkswagen Window Aperture Seal, part number 3AF839475A3Q7. This seal is designed to fit around the window aperture, creating a watertight and airtight barrier between the glass and the vehicle body. It prevents water ingress, wind noise, and dust from entering the cabin. This seal is crucial for maintaining the integrity of the vehicle's interior environment. Genuine OEM seals offer precise dimensions for a perfect fit and effective sealing.