Motors, Core, Case & Related Components for 2003 Chevrolet Trailblazer EXT
No.
Part # / Description / Price
Price
2
Heater and Air Conditioning Evaporator Case 
GM
GM Description: 4.2L, rear. 5.3 & 6.0L, rear. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
4
MSRP $6.44
$4.35
6
Evaporator Core GM
GM Positions: Rear
Description: For Auxiliary HVAC. Envoy/Trailblazer. 5.3 & 6.0L, rear. 4.2L, rear.
8
Air Conditioning Expansion Valve GM
GM Description: 4.2L, rear. 5.3 & 6.0L, rear. Responsible for removing pressure from within the liquid refrigerant, which alters the state from a liquid, to a vapor in the evaporator
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
9
MSRP $6.88
$5.29
11
Heater Core GM
GM Positions: Rear
Description: For Auxiliary HVAC. Envoy/Trailblazer. 5.3 & 6.0L, rear. 4.2L, rear.
12
MSRP $6.88
$5.29
13
Acdelcoâ„¢ HVAC Blend Door Actuator GM
GM Description: 4.2L, rear, mode. 5.3 & 6.0L, rear, mode. 5.3 & 6.0L, rear, temp. 4.2L, rear, temp.
14
Temperature Mode Valve Actuator Assembly GM
GM Description: 4.2L, rear, temp. 5.3 & 6.0L, rear, temp. 4.2L, rear, mode. 5.3 & 6.0L, rear, mode. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $149.06
$82.73
MSRP $149.06
$82.73
15
Acdelcoâ„¢ Blower Motor GM
GM Description: Envoy/Trailblazer. Incl.Impeller. 5.3 & 6.0L rear. 4.2L rear.
15
Heating and Air Conditioning Auxiliary Blower Motor Assembly GM
GM Description: Envoy/Trailblazer. 4.2L, rear. 5.3 & 6.0L, rear. Permanently lubricated, self-aligning bearings designed for long life and dependable performance
15
Acdelcoâ„¢ HVAC Blower Motor Assembly GM
GM Positions: Rear
Description: All models. Incl.Impeller. 4.2L. 5.3 & 6.0L.
No.
Part # / Description / Price
Price
1
Heating and Air Conditioning Blower Motor with Wheel GM
GM Description: All models. 4.2L. 5.3 & 6.0L. Permanently lubricated, self-aligning bearings designed for long life and dependable performance
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
1
4
Control Module GM
GM Description: Envoy/Trailblazer. 4.2L. Automatic Temperature Controls. 5.3 & 6.0L. Bravada.
4
Acdelcoâ„¢ HVAC Blower Motor Resistor GM
GM Positions: Front
Description: S-series. Exc.Automatic Temperature Controls. For Primary HVAC. 4.2L, manual control. 5.3 & 6.0L, manual control.
Related Parts
Part # / Description / Price
Price
Acdelcoâ„¢ Blower Motor GM
GM Positions: Rear
Description: Envoy/Trailblazer. Incl.Impeller. 5.3 & 6.0L rear. 4.2L rear.
Acdelcoâ„¢ HVAC Blower Motor Assembly GM
GM Positions: Front
Description: All models. Incl.Impeller. 4.2L. 5.3 & 6.0L.