How to replace the thermostat housing on 4.8L, 5.3L, and 6.0L engines on Chevrolet Silverado 2500?

Replacing the Thermostat Housing on 4.8l, 5.3l, and 6.0l engines starts by removing the radiator outlet hose followed by taking out the Water Pump inlet bolts to detach the Water Pump inlet and Thermostat while noting the Thermostat's requirement for replacement only as an assembly with the Water Pump inlet. Installation requires placing the Thermostat and Thermostat Housing onto the Water Pump in accordance with service precautions fastener notice. After securing the Thermostat Housing bolts with 15 nm (11 ft. Lbs.) torque, reinstall the radiator outlet hose.

OEM Chevrolet Silverado 2500 Thermostat

Engine Coolant Thermostat

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Chevrolet Silverado 2500 Thermostat Unit Part Number: 12600171
$24.02 MSRP: $45.12
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Product Specifications
- Other Name: Thermostat, Engine Coolant Temperature; Thermostat
- Replaces: 12581595
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004 Chevrolet Silverado 2500 | Base, LS, LT, WT | 8 Cyl 6.0 L GAS

Chevrolet Silverado 2500 Thermostat

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Chevrolet Silverado 2500 Thermostat Parts and Q&A

Thermostat Unit
12600171
Q: How to replace the thermostat housing on 4.8L, 5.3L, and 6.0L engines on Chevrolet Silverado 2500?
A:
Replacing the Thermostat Housing on 4.8l, 5.3l, and 6.0l engines starts by removing the radiator outlet hose followed by taking out the Water Pump inlet bolts to detach the Water Pump inlet and Thermostat while noting the Thermostat's requirement for replacement only as an assembly with the Water Pump inlet. Installation requires placing the Thermostat and Thermostat Housing onto the Water Pump in accordance with service precautions fastener notice. After securing the Thermostat Housing bolts with 15 nm (11 ft. Lbs.) torque, reinstall the radiator outlet hose.