ACDelco 15-81772 GM Original Equipment Heating and Air Conditioning Blower Motor Resistor Restores blower speed control caused by a failed resistor GM-recommended replacement part for your GM vehicles original factory component Offering the quality, reliability, and durability of GM OE Manufactured to GM OE specification for fit, form, and function GM-recommended replacement part for your GM Vehicles original factory component Offering the quality, reliability, and durability of GM OE Manufactured to GM OE specification for fit, form, and function