1、Fitment: Blower motor fan resistor is replacement for Hummer H2 2004‑2007. Please confirm whether your model is applicable before buying. 2、Replacing OE Numbers: 3GSH 19E624 CA, 4GSH 19E624 AA, 6GSH 19E624 AA, 93803637, 88986529, 15‑80388, 15‑80655, 15‑80911, 89023355, 19331830, 19329838. 3、Function: Blower motor resistor controls the fan speed of your blower motor, help you solve the problem that the fan only works at a certain speed or the fan does not work. 4、ABS Material: Using reinforced ABS material and advanced technology, heater blower motor resistor is wearproof, heat resistant, with long lasting durability. 5、Easy Installation: Just remove the screws that secure the blower motor resistor into the blower, remove the resistor assembly, and install the new resistor in place.