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

Disconniecting the heater hoses from the Heater Core, removing the Thermostat and the Thermostat housing bolts are the factors that help in using the engine coolant Thermostat housing (LY7). Subsequently, remove the Thermostat housing, heater pipes, hoses, and bolts, and clear the sealing faces with help of a plastic gasket scraper (J 28410 or its kind). For the assembly, install the heater pipes and hoses to the Thermostat housing, and install a new gasket onto the Thermostat housing. Partially install the Thermostat housing bolts to hold the gasket before inserting the Thermostat housing with the heater pipes, hoses, gasket, and bolts. Make sure to finger tighten the Thermostat housing bolts to 20 n.m (15 lb ft) and then install the Thermostat. Lastly, reconnect heater hoses with the heater cores.

How to replace the thermostat housing (RPO LX9) on Buick Rendezvous?

To replace the Thermostat Housing (RPO LX9), the work should start by removing the air cleaner outlet duct and cooling system partially drained. Next, move the radiator inlet hose clamp from the Thermostat Housing, anddetach the radiator inlet hose from Thermostat Housing. Remove the Thermostat Housing, then the bolts holding the Thermostat Housing. For installation, install the Thermostat Housing by ensuring that he follows the fastener notice in service precautions. Make sure to secure the Thermostat Housing bolts with 25 nm (18 ft. Lbs.), and the radiator inlet hose clamp with reattaching the radiator inlet hose to the Thermostat Housing. Finally, install the air cleaner outlet duct and top up the cooling system.

OEM Buick Thermostat Housing

Engine Coolant Thermostat Housing

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18 Thermostat Housings found

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Buick Thermostat Housing
Part Number: 1647540
$11.19 MSRP: $21.01
You Save: $9.82 (47%)
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Product Specifications
- Other Name: Housing E; Thermostat Housing Cover; Water Outlet; Housing, Engine Coolant Thermostat
Fits the following Buick Models:
- Lucerne | 2006-2011 | CXL, CXS, Super | 8 Cyl 4.6 L GAS
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Buick Thermostat Housing
Part Number: 12620112
$56.23 MSRP: $115.56
You Save: $59.33 (52%)
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
- Replaces: 12567750, 12572988, 12602913
Fits the following Buick Models:
- Rainier | 2004-2007 | CXL, CXL Plus | 6 Cyl 4.2 L GAS
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Buick Thermostat Housing, Green Line
Part Number: 12597172
$96.09 MSRP: $197.47
You Save: $101.38 (52%)
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Engine Coolant Thermostat Housing; Thermostat Housing Cover; Water Manifold; Housing, Engine Coolant Thermostat
Fits the following Buick Models:
- LaCrosse | 2010-2016 | Base, Convenience, CX, CXL, Leather, Premium | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
- Regal | 2011-2017 | Base, CXL, Premium | 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
- Verano | 2012-2017 | Base, Convenience, Leather, Premium, Sport Touring, Turbo | 4 Cyl 2.0 L GAS, 4 Cyl 2.4 L FLEX, 4 Cyl 2.4 L GAS
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Buick Thermostat Housing
Part Number: 12572039
$64.38 MSRP: $116.52
You Save: $52.14 (45%)
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Product Specifications
- Other Name: Outlet, Water; Thermostat Housing Cover
Fits the following Buick Models:
- Rendezvous | 2004 | CXL, Ultra | 6 Cyl 3.6 L GAS
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Buick Thermostat Housing
Part Number: 12605853
$97.74 MSRP: $200.84
You Save: $103.10 (52%)
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
Fits the following Buick Models:
- Regal | 2011-2013 | CXL, GS, Premium | 4 Cyl 2.0 L FLEX
- Verano | 2013-2016 | Premium, Turbo | 4 Cyl 2.0 L GAS
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Buick Thermostat Housing
Part Number: 12673413
$101.54 MSRP: $208.66
You Save: $107.12 (52%)
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Water Inlet; Thermostat Unit; Housing, Engine Coolant Thermostat
- Replaced by: 25205818
Fits the following Buick Models:
- Encore | 2016-2022 | Base, Convenience, Essence, Leather, Preferred, Preferred II, Premium, Sport Touring | 4 Cyl 1.4 L GAS
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Buick Thermostat Housing
Part Number: 25201447
$66.48 MSRP: $136.58
You Save: $70.10 (52%)
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Thermostat Gasket; Thermostat; Thermostat Cover; Water Inlet; Housing, Engine Coolant Thermostat
- Replaces: 12651603
Fits the following Buick Models:
- Envision | 2016-2020 | Base, Essence, Preferred, Premium, Premium II | 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
- Regal | 2014-2017 | Base, GS, Premium, Sport Touring | 4 Cyl 2.0 L GAS
- Regal Sportback | 2018-2020 | Avenir, Base, Essence, Preferred, Preferred II | 4 Cyl 2.0 L GAS
- Regal TourX | 2018-2020 | Base, Essence, Preferred | 4 Cyl 2.0 L GAS
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Buick Thermostat Housing
Part Number: 25201448
$71.39 MSRP: $146.70
You Save: $75.31 (52%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Cover; Water Inlet; Housing; Housing, Engine Coolant Thermostat
- Replaces: 12650241
Fits the following Buick Models:
- LaCrosse | 2018-2019 | Base, Essence, Preferred, Premium | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV)
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Buick Thermostat Housing
Part Number: 12689041
$56.36 MSRP: $115.82
You Save: $59.46 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Thermostat Unit; Housing, Engine Coolant Thermostat
- Replaces: 12599235, 12638893
Fits the following Buick Models:
- Enclave | 2008-2017 | Base, Convenience, CX, CXL, Leather, Premium | 6 Cyl 3.6 L GAS
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Buick Thermostat Housing
Part Number: 12689039
$73.35 MSRP: $150.72
You Save: $77.37 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
- Replaces: 12651113
Fits the following Buick Models:
- LaCrosse | 2010-2016 | Base, Convenience, CX, CXL, CXS, Leather, Premium, Sport Touring, Touring | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Buick Thermostat Housing
Part Number: 12681133
$71.22 MSRP: $146.36
You Save: $75.14 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
- Replaces: 12664190
Fits the following Buick Models:
- Enclave | 2018-2024 | Avenir, Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Thermostat Housing, Lower
Part Number: 1620610
Product Specifications
- Other Name: Housing-Engine Coolant Thermostat Lower; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
- Position: Lower
Fits the following Buick Models:
- Riviera | 1984-1985 | Base, Luxury, T-Type | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
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Buick Thermostat Housing
Part Number: 12597257
Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Water Outlet; Housing, Engine Coolant Thermostat
- Replaces: 12574355
Fits the following Buick Models:
- LaCrosse | 2005-2008 | CXS | 6 Cyl 3.6 L GAS
- Rendezvous | 2004-2006 | CX, CXL, CXL Plus, Ultra | 6 Cyl 3.6 L GAS
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Buick Thermostat Housing, Upper
Part Number: 1609644
Product Specifications
- Other Name: Housing-Engine Coolant Thermostat Upper; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
- Position: Upper
Fits the following Buick Models:
- Riviera | 1984-1985 | Base, Luxury, T-Type | 6 Cyl 3.8 L GAS, 6 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL
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Buick Thermostat Housing
Part Number: 10181367
Product Specifications
- Other Name: Housing; Thermostat Housing Cover; Housing Kit, Engine Coolant Thermostat; Housing, Engine Coolant Thermostat
- Replaces: 10101865
Fits the following Buick Models:
- Century | 1991-1992 | Custom, Limited, Special | 4 Cyl 2.5 L GAS
- Skylark | 1991 | Base, Custom, Gran Sport, Luxury Edition | 4 Cyl 2.5 L GAS
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Buick Thermostat Housing
Part Number: 10116251
Product Specifications
- Other Name: Housing, Engine Coolant Thermostat; Thermostat Housing Cover
Fits the following Buick Models:
- Skyhawk | 1986 | Custom, Limited, Sport, T-Type | 4 Cyl 1.8 L GAS
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Buick Thermostat Housing
Part Number: 10116245
Product Specifications
- Other Name: Housing, Engine Coolant Thermostat; Thermostat Housing Cover; Housing Kit, Engine Coolant Thermostat
Fits the following Buick Models:
- Skyhawk | 1984-1985 | Custom, Limited, T-Type | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS
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Buick Thermostat Housing
Part Number: 10116221
Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
Fits the following Buick Models:
- Skyhawk | 1986 | Custom, Limited, Sport, T-Type | 4 Cyl 1.8 L GAS, 4 Cyl 2.0 L GAS

Buick Thermostat Housing Parts Questions & Experts Answers

Thermostat Housing
12597257
Q: How to replace the Engine Coolant Thermostat Housing (LY7) on Buick LaCrosse?
A: Disconniecting the heater hoses from the Heater Core, removing the Thermostat and the Thermostat housing bolts are the factors that help in using the engine coolant Thermostat housing (LY7). Subsequently, remove the Thermostat housing, heater pipes, hoses, and bolts, and clear the sealing faces with help of a plastic gasket scraper (J 28410 or its kind). For the assembly, install the heater pipes and hoses to the Thermostat housing, and install a new gasket onto the Thermostat housing. Partially install the Thermostat housing bolts to hold the gasket before inserting the Thermostat housing with the heater pipes, hoses, gasket, and bolts. Make sure to finger tighten the Thermostat housing bolts to 20 n.m (15 lb ft) and then install the Thermostat. Lastly, reconnect heater hoses with the heater cores.
Thermostat Housing
12597257
Q: How to replace the thermostat housing (RPO LX9) on Buick Rendezvous?
A: To replace the Thermostat Housing (RPO LX9), the work should start by removing the air cleaner outlet duct and cooling system partially drained. Next, move the radiator inlet hose clamp from the Thermostat Housing, anddetach the radiator inlet hose from Thermostat Housing. Remove the Thermostat Housing, then the bolts holding the Thermostat Housing. For installation, install the Thermostat Housing by ensuring that he follows the fastener notice in service precautions. Make sure to secure the Thermostat Housing bolts with 25 nm (18 ft. Lbs.), and the radiator inlet hose clamp with reattaching the radiator inlet hose to the Thermostat Housing. Finally, install the air cleaner outlet duct and top up the cooling system.

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Enclave Regal Encore Riviera LaCrosse Century Lucerne Verano Envision Rainier Rendezvous Skyhawk Regal Sportback Regal TourX