How to replace the Engine Coolant Thermostat Housing (LY7) on 2007 Buick LaCrosse?

To fit an Engine Coolant Thermostat Housing (LY7), un-hook the heater hoses, remove the thermostat and housing bolts and clean the sealing surfaces. Install the heater pipes and hoses to the housing, a new gasket and fix everything in place. Lastly, re-connect the heater hoses.

OEM 2007 Buick LaCrosse Thermostat Housing

Engine Coolant Thermostat Housing

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2007 Buick LaCrosse Thermostat Housing Part Number: 12597257
Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Water Outlet; Housing, Engine Coolant Thermostat
- Replaces: 12574355
- Item Weight: 1.30 Pounds
- Item Dimensions: 8.1 x 5.3 x 5.1 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 12597257
- Warranty: This genuine part is guaranteed by GM's factory warranty.
More Info
Fits the following 2007 Buick LaCrosse Submodels:
- CXS | 6 Cyl 3.6 L GAS

2007 Buick LaCrosse Thermostat Housing

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2007 Buick LaCrosse Thermostat Housing Parts and Q&A

Q: How to replace the Engine Coolant Thermostat Housing (LY7) on 2007 Buick LaCrosse?
A: To fit an Engine Coolant Thermostat Housing (LY7), un-hook the heater hoses, remove the thermostat and housing bolts and clean the sealing surfaces. Install the heater pipes and hoses to the housing, a new gasket and fix everything in place. Lastly, re-connect the heater hoses.