Genuine OEM Volkswagen Exterior Mirror Housing, part number 5H1857507BF9B9. This is the outer shell of the side mirror assembly, providing protection and mounting for internal components. It is located on the exterior of the vehicle, typically on the driver or passenger side door. Finished in Satin Black (9B9). Genuine OEM exterior mirror housings ensure exact fitment and factory-matched paint preparation for a seamless appearance.