ACDelco 15-81638 GM Original Equipment Heating and Air Conditioning Blower Control Module

ACDelco GM Original Equipment HVAC Blower Control Modules regulate the blower fan motor speed using either a stepped resistor or a transistorized driver module. This original equipment blower control module is a GM-recommended replacement for your vehicle’s original component and has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.