The Genuine BMW Finisher Side Window Rear Left (Alu Satiniert) - 51377317831 is a high-quality replacement part for your BMW vehicle. It is designed to fit the rear left side window and has a sleek, satin aluminum finish. This finisher is an authentic BMW product and is made with the same attention to detail and quality as all other BMW parts. It is durable and built to last, providing a perfect fit and seamless integration with your vehicle. This finisher is an essential component for maintaining the aesthetic and functionality of your BMW.