Genuine OEM Volkswagen Exterior Mirror Housing, part number 5NN857508R9B9. This is the outer shell of the side mirror assembly, designed to house the mirror glass and internal mechanisms. It is located on the exterior of the vehicle, typically on the driver or passenger side door. Finished in Satin Black with the color code 9B9. The exact fit and contour are crucial for proper aerodynamic performance and integration with the vehicle body. Genuine OEM parts ensure precise fitment and durability.