Genuine OEM Volkswagen Exterior Mirror Housing, part number 5H1857507CD9B9. 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. Features a Satin Black D9B9 finish. Genuine OEM parts ensure the correct contour, mounting points, and paint-ready surface for a seamless replacement.