The Genuine BMW Side Window Fixed Rear Left (Chrom) - 51357433427 is a genuine OEM (Original Equipment Manufacturer) part for BMW vehicles. It is a fixed window panel that is designed to fit on the rear left side of the vehicle. The window is made of high-quality materials and features a chrome finish for a sleek and stylish look. It is a direct replacement for the original window and is designed to fit perfectly on the vehicle without any modifications. This product is durable, reliable, and meets all of BMW's strict quality standards. It is an essential component for maintaining the integrity of the vehicle's windows and ensuring a secure and comfortable driving experience.