How do you replace the evaporator core in Chevrolet Trailblazer's cooling system?

Drain the cooling system and remove the front HVAC module assembly. Next, remove the screws and separate the HVAC module halves, taking care not to damage the seal. Proceed to remove the evaporator core. If a new evaporator core is being used, add 2 oz. of refrigerant oil. The remaining installation is simply the reverse of the removal process. Once completed, refill the cooling system. Finally, have the system evacuated, recharged, and leak tested.

Genuine Chevrolet Trailblazer Evaporator

A/C Evaporator Core

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4 Evaporators found

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Chevrolet Trailblazer Evaporator Kit, A/C
Part Number: 42752021
- Other Name: Evaporator Core
- Replaces: 42747631
$112.55 MSRP: $202.80
You Save: $90.25 (45%)

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Fits the following Vehicles:
2021 Chevrolet Trailblazer | 4 DOOR EXT | 3 Cyl 1.2L, 3 Cyl 1.3L
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Chevrolet Trailblazer Evaporator Kit,A/C
Part Number: 89019026
- Other Name: EVAPORATOR KIT, A/C Evaporator; Evaporator Core
- Replaces: 52498635
More Info
Fits the following Vehicles:
2003-2009 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L, 8 Cyl 6.0L
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Chevrolet Trailblazer Evaporator Kit,A/C
Part Number: 52495720
- Other Name: EVAPORATOR KIT, A/C Evaporator; Evaporator Core
- Replaces: 52487350
More Info
Fits the following Vehicles:
2002 Chevrolet Trailblazer | 4 DOOR, 4 DOOR EXT | 6 Cyl 4.2L
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Chevrolet Trailblazer Evaporator Kit,Auxiliary A/C
Part Number: 89023466
- Other Name: EVAPORATOR KIT, A/C Evaporator; Evaporator Core
- Replaces: 88892977, 89023341
More Info
Fits the following Vehicles:
2002-2006 Chevrolet Trailblazer | 4 DOOR EXT | 6 Cyl 4.2L, 8 Cyl 5.3L
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Chevrolet Trailblazer Evaporator Parts Questions & Answers

Evaporator Kit,A/C
89019026
Q: How do you replace the evaporator core in Chevrolet Trailblazer's cooling system?
A: Drain the cooling system and remove the front HVAC module assembly. Next, remove the screws and separate the HVAC module halves, taking care not to damage the seal. Proceed to remove the evaporator core. If a new evaporator core is being used, add 2 oz. of refrigerant oil. The remaining installation is simply the reverse of the removal process. Once completed, refill the cooling system. Finally, have the system evacuated, recharged, and leak tested.