How to replace the Heater Core (Heat Only) on Chevrolet Silverado 2500?

The heater core replacement (HEAT ONLY) starts with uninstalling the heater/vent module then proceeding to remove heater core cover screws before uninstalling the heater core cover. Follow the fastening guidance in Service Precautions when you install the new heater core because the next step is to put on the heater core cover followed by the replacement of the heater core. Reinstall the heater/vent module after tightening the heater core cover screws to 1.6 N.m (14 lb in).

OEM Chevrolet Silverado 2500 Heater Core

HVAC Heater Core

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2 Heater Cores found

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Chevrolet Silverado 2500 Heater Core Part Number: 89018297
$158.42 MSRP: $325.56
You Save: $167.14 (52%)
Ships in 1-2 Business Days
ADD TO CART
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:
- 1999-2004 Chevrolet Silverado 2500 | Base, LS, LT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
View related parts
Chevrolet Silverado 2500 Heater Core Part Number: 19258989
$148.98 MSRP: $278.00
You Save: $129.02 (47%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Core, Heater Core
- Replaces: 88986627
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Chevrolet Silverado 2500 | Base, LS, LT, WT | 8 Cyl 6.0 L GAS

Chevrolet Silverado 2500 Heater Core

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Chevrolet Silverado 2500 Heater Core Parts Questions & Experts Answers

Heater Core
89018297
Q: How to replace the Heater Core (Heat Only) on Chevrolet Silverado 2500?
A:
The heater core replacement (HEAT ONLY) starts with uninstalling the heater/vent module then proceeding to remove heater core cover screws before uninstalling the heater core cover. Follow the fastening guidance in Service Precautions when you install the new heater core because the next step is to put on the heater core cover followed by the replacement of the heater core. Reinstall the heater/vent module after tightening the heater core cover screws to 1.6 N.m (14 lb in).