Genuine OEM Volkswagen Window Aperture Seal, part number 3AF839476B7Z7. This seal is designed to fit into the aperture of the door window. Its primary function is to create a watertight and airtight seal between the window glass and the vehicle body, preventing water ingress and wind noise. It is positioned around the window opening on the door frame. This part is finished in a specific colour code (7Z7). Genuine OEM seals ensure precise fitment and material integrity, crucial for long-term weatherproofing and noise reduction.