Genuine BMW Fuel Tank Breather Line - 13907636140: Genuine BMW Fuel Tank Breather Line - 13907636140 is a direct replacement part for your BMW vehicle. This part is designed to provide a secure connection between the fuel tank and the intake manifold, allowing the fuel to be drawn from the tank and into the engine. This part is made from high-quality materials and is designed to last for the life of your BMW vehicle.