The Genuine BMW HVAC Heater Hose - 64509169917 is a high-quality replacement part for BMW vehicles. This hose is specifically designed for the heating and cooling system of the vehicle, ensuring efficient and reliable performance. It is made from durable materials to withstand high temperatures and pressure, and is an exact fit for the original hose in BMW models. This heater hose helps to regulate the flow of coolant to the heater core, allowing the vehicle's interior to be warmed up during cold weather. It is an essential component for maintaining the proper functioning of the HVAC system in BMW cars.