The Genuine BMW Trim Power-Window Unit (Black) - 51427216775 is a high-quality, original equipment manufacturer (OEM) part designed specifically for BMW vehicles. This power-window unit is used to control the operation of the power windows in the vehicle, allowing the driver and passengers to easily open and close their windows with the touch of a button. The trim is black in color, providing a sleek and modern look that complements the interior of the vehicle. Made from durable materials, this power-window unit is built to last and provides reliable performance. It is an essential component for maintaining the functionality of the power windows in your BMW.