ACDelco 22807123 OE Blower Fan Resistor, NO Center Floor Console.
For 2003, 2004, 2005, 2006, 2007 GM 6.6L Duramax LB7 LLY LBZ
Replacement blower resistor. Common failure item when you loose one or more speeds on your HVAC blower fan.
Be sure to carefully inspect the wiring connector for signs of overheating during replacement.
This resistor module only fits trucks equipped with out a floor console