A0018358706 0018358706 1Pcs Heater Blower Resistor Resistance for W639 The A0018358706 heater blower resistor is designed to regulate the speed of the blower motor in the heating and ventilation system of compatible vehicles.This component consistent with a standard air volume output and functions at a 12V electric current.It is engineered as a direct replacement for the part, providing performance within the vehicle's existing electrical setup.The design allows for straightforward installation and matches the specifications of the unit.Interchange part numbers include A0018358706, 0018358706, and 9ML351332-201.This resistor is manufactured to meet standard industry requirements for fit and function in applicable models.