The Genuine BMW Air Brake Channel Left - 51747180623 is a high-quality replacement part for BMW vehicles. It is designed to fit on the left side of the air brake system and is made from durable materials to ensure long-lasting performance. This air brake channel helps to regulate the flow of air in the brake system, ensuring smooth and efficient braking. It is an essential component for the safe operation of your BMW vehicle and is an authentic, genuine BMW product.