This product is a genuine BMW HVAC blower motor resistor with the part number 64118391749. It is designed to regulate the speed of the blower motor in the vehicle's heating, ventilation, and air conditioning system. This resistor is an essential component in maintaining the proper functioning of the HVAC system, as it controls the amount of current flowing to the blower motor. It is a high-quality, OEM (original equipment manufacturer) part that is specifically designed for use in BMW vehicles. This product is durable and reliable, providing efficient performance and ensuring the comfort of the vehicle's occupants.