Genuine OEM Volkswagen Exterior Mirror Housing, part number 5H1857507CF9B9. This housing serves as the protective outer shell for the side mirror assembly, enclosing the mirror mechanism and glass. It is located on the exterior of the vehicle, typically on the driver or passenger side door. Finished in Satin Black F9B9. Genuine OEM mirror housings ensure precise fitment and maintain the vehicle's original aesthetic, crucial for aerodynamic performance and weather sealing.