How to replace the Heater Core on 2000 GMC Jimmy?

In order to change the heater core, disassemble the heat/vent module and the heater core access cover. Take out heater core, then fit in the new one into the module according to Fastener Notice. Resecure the access cover by screwing it tight. Lastly, install the heat/vent module again.

OEM 2000 GMC Jimmy Heater Core

HVAC Heater Core

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2000 GMC Jimmy Heater Core Part Number: 52473178
$123.54 MSRP: $221.60
You Save: $98.06 (45%)
Product Specifications
- Other Name: Core, Heater; HVAC Heater Core; Core, Heater Core
- Item Weight: 3.70 Pounds
- Item Dimensions: 16.6 x 13.2 x 7.6 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 52473178
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2000 GMC Jimmy Submodels:
- Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS

2000 GMC Jimmy Heater Core

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2000 GMC Jimmy Heater Core Parts and Q&A

Q: How to replace the Heater Core on 2000 GMC Jimmy?
A: In order to change the heater core, disassemble the heat/vent module and the heater core access cover. Take out heater core, then fit in the new one into the module according to Fastener Notice. Resecure the access cover by screwing it tight. Lastly, install the heat/vent module again.