Genuine OEM Volkswagen Exterior Mirror Housing, part number 5H1857507AG9B9. This is the main structural component of the exterior mirror assembly, enclosing the mirror mechanism and glass. It is located on the exterior of the vehicle, attached to the door. Finished in Satin Black (9B9). Genuine OEM exterior mirror housings ensure precise fitment, correct paint adhesion, and factory-matched contours for a seamless appearance.