How to replace the Heater Core (Visteon) on GMC Sierra 1500?

The replacement process of Visteon heater cores starts with the HVAC module assembly removal. The first step involves removing the screws holding the heater core cover before extracting the heater core cover out of the HVAC module assembly . The next step requires removing the heater core cowl gasket from the heater core which allows the heater core to be extracted from the HVAC module assembly. Reinstall the heater core inside the HVAC module assembly before putting on the heater core cowl gasket to the HVAC module assembly . Post-installation verify that all hardware is tightly fastened to 2 N.m (18 lb in). Secure the heater core cover onto the HVAC module assembly while maintaining proper tightenness of screws at 2 N.m (18 lb in). Repair the procedure by reinstalling the HVAC module assembly.

OEM GMC Sierra 1500 Heater Core

HVAC Heater Core

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6 Heater Cores found

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GMC Sierra 1500 Heater Core
Part Number: 89018297
$155.32 MSRP: $319.18
You Save: $163.86 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Core, Heater Core; HVAC Heater Core
- Replaces: 52473326, 52473322
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1999-2013 GMC Sierra 1500 | Base, C3, Denali, HT, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Heater Core
Part Number: 25906908
$137.34 MSRP: $282.24
You Save: $144.90 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Core, Heater Core
- Replaces: 15887363
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2013 GMC Sierra 1500 | Denali, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Heater Core
Part Number: 19258989
$135.28 MSRP: $278.00
You Save: $142.72 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Core, Heater Core
- Replaces: 88986627
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2007 GMC Sierra 1500 | Base, Denali, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Heater Core
Part Number: 85108010
$58.49 MSRP: $120.20
You Save: $61.71 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Heater Assembly-.; Heater, Auxiliary Heater
- Replaced by: 87846949
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2019-2023 GMC Sierra 1500 | AT4, AT4X, Base, Denali, Denali Ultimate, Elevation, Pro, SLE, SLT | 4 Cyl 2.7 L GAS, 6 Cyl 3.0 L DIESEL, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Heater Core
Part Number: 84418888
$98.79 MSRP: $203.01
You Save: $104.22 (52%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Heater Assembly-.; Heater, Auxiliary Heater
- Replaces: 22933441, 23281454
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 GMC Sierra 1500 | AT4, Base, Denali, Elevation, SLE, SLT | 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 5.3 L MILD HYBRID EV-GAS (MHEV), 8 Cyl 6.2 L GAS
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GMC Sierra 1500 Blower Motor
Part Number: 84418887
$94.53 MSRP: $279.78
You Save: $185.25 (67%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Heater Assembly-.; Heater Core; Heater, Auxiliary Heater; Heater, Heater Core
- Replaces: 22808761, 23281453
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2015 GMC Sierra 1500 | Base, Denali, SLE, SLT | 6 Cyl 4.3 L FLEX, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.2 L GAS

GMC Sierra 1500 Heater Core

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GMC Sierra 1500 Heater Core Parts Questions & Experts Answers

Heater Core
89018297
Q: How to replace the Heater Core (Visteon) on GMC Sierra 1500?
A: The replacement process of Visteon heater cores starts with the HVAC module assembly removal. The first step involves removing the screws holding the heater core cover before extracting the heater core cover out of the HVAC module assembly . The next step requires removing the heater core cowl gasket from the heater core which allows the heater core to be extracted from the HVAC module assembly. Reinstall the heater core inside the HVAC module assembly before putting on the heater core cowl gasket to the HVAC module assembly . Post-installation verify that all hardware is tightly fastened to 2 N.m (18 lb in). Secure the heater core cover onto the HVAC module assembly while maintaining proper tightenness of screws at 2 N.m (18 lb in). Repair the procedure by reinstalling the HVAC module assembly.