The Genuine BMW Side Window Black Door Rear Left (Ssg) - 51357382139 is a replacement part for the side window of a BMW vehicle. It is specifically designed for the rear left side of the car and is made with high-quality materials to ensure durability and a perfect fit. The window is tinted black, providing privacy and protection from the sun's glare. This product is an original BMW part, ensuring it meets the manufacturer's standards and specifications. It can be used as a direct replacement for a damaged or worn-out side window, restoring the functionality and appearance of the vehicle.