The Genuine BMW Side Window Rear Left (Gloss Black) - 51372996839 is a high-quality replacement part for BMW vehicles. It is designed specifically for the rear left side window and has a sleek gloss black finish. This product is made from durable materials to ensure long-lasting performance and a perfect fit. It is an authentic BMW part and is compatible with various BMW models. This side window is an essential component for maintaining the functionality and appearance of your BMW.