How to service the heater core on GMC C2500?

The service process for a heater core begins by draining engine coolant first while recovering refrigerant. You must begin by taking out the heater/vent module followed by unfastening the heater core cover screws before extracting the heater core cover in order to reach the heater core. Place the replacement heater core before installing the heater core cover and attach screws according to the manufacturer recommendations of 1.6 N.m (14 lb in). Reinstall the heater/vent module and then complete coolant system refilling before recharge of the air conditioning system.

OEM GMC C2500 Heater Core

HVAC Heater Core

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6 Heater Cores found

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GMC C2500 Heater Core
Part Number: 89019173
$100.02 MSRP: $205.54
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Product Specifications
- Other Name: Core, Heater; HVAC Heater Core; Core, Heater Core
- Replaces: 52467018
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-2000 GMC C2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C2500 Heater Core
Part Number: 52452918
Product Specifications
- Other Name: Core, Heater; Core, Heater Core
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990 GMC C2500 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
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GMC C2500 Heater Core
Part Number: 52467017
Product Specifications
- Other Name: Core, Heater; Core, Heater Core
- Replaces: 52461009
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-2000 GMC C2500 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C2500 Heater Core
Part Number: 3034749
Product Specifications
- Other Name: Core, Auxiliary Heater; Core, Heater Core
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C2500 Heater Core
Part Number: 19131978
Product Specifications
- Other Name: Core, Heater Core; HVAC Heater Core
- Replaces: 03027247, 52479870, 3027247
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
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GMC C2500 Heater Core
Part Number: 19131974
Product Specifications
- Other Name: Core, Heater Core; HVAC Heater Core
- Replaces: 03027265, 3027265, 52479865
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1986 GMC C2500 | Base, High Sierra, Sierra Classic | 6 Cyl 4.1 L GAS, 6 Cyl 4.3 L GAS, 6 Cyl 4.8 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS

GMC C2500 Heater Core

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GMC C2500 Heater Core Parts Questions & Experts Answers

Heater Core
89019173
Q: How to service the heater core on GMC C2500?
A: The service process for a heater core begins by draining engine coolant first while recovering refrigerant. You must begin by taking out the heater/vent module followed by unfastening the heater core cover screws before extracting the heater core cover in order to reach the heater core. Place the replacement heater core before installing the heater core cover and attach screws according to the manufacturer recommendations of 1.6 N.m (14 lb in). Reinstall the heater/vent module and then complete coolant system refilling before recharge of the air conditioning system.

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