ACDelco 21991977 GM Original Equipment Heating and Air Conditioning Blower Control Module

Restore blower fan control functions

GM-recommended replacement part for your GM vehicle's original factory component

Offering the quality, reliability, and durability of GM OE

Manufactured to GM OE specification for fit, form, and function

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.
Brand: ACDelco, Model: 21991977