Genuine OEM Volkswagen Exterior Mirror Housing, part number 572857507AL9B9. This housing protects the exterior mirror assembly and contributes to the vehicle's aerodynamics and aesthetics. It is located as part 1 in the exterior mirror assembly diagram. Features a Satin Black L9B9 finish. Genuine OEM exterior mirror housings are critical for precise fitment, ensuring proper aerodynamic function and a seamless aesthetic match to the vehicle's original design.