Genuine OEM Volkswagen Mirror Housing Frame, part number 5Z08575781NN. This part serves as the black frame for the side mirror assembly, providing structural support and housing the mirror components. It is positioned on the exterior of the vehicle, surrounding the mirror glass. The frame is finished in black, indicated by the '1NN' suffix. Genuine OEM parts ensure exact fitment and material quality, crucial for exterior components exposed to the elements and maintaining factory specifications.