How to replace the thermostat housing (LY7) on Buick LaCrosse?

To replace the Thermostat Housing (LY7), one should start disconnecting the heater hoses from the heater core, then remove the Thermostat as well as the Thermostat Housing bolts. Next, disconnect the Thermostat Housing as well as the heater pipes, hoses, and bolts, and clean the sealing surfaces with a plastic gasket scraper (J 28410 or equivalent) very carefully. Unto installation, assemble the heater pipes and hoses to Thermostat Housing, then put on a new gasket into the Thermostat Housing. Monte the Thermostat Housing bolts partially to hold the gasket in place before installing the Thermostat Housing with the heater pipes, hoses, gasket, and bolts. Make sure to install the Thermostat Housing bolts and tighten them to 20 nm (15 ft. Lbs.). Last, install the Thermostat and reconnect the heater hoses to the heater core.

OEM Buick LaCrosse Thermostat Housing

Engine Coolant Thermostat Housing

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4 Thermostat Housings found

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Buick LaCrosse Thermostat Housing, Green Line Part Number: 12597172
$98.01 MSRP: $201.41
You Save: $103.40 (52%)
Ships in 1-2 Business Days
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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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Buick LaCrosse | Base, Convenience, CX, CXL, Leather, Premium | 4 Cyl 2.4 L GAS, 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Thermostat Housing Part Number: 25201448
$50.57 MSRP: $149.64
You Save: $99.07 (67%)
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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2018-2019 Buick LaCrosse | Base, Essence, Preferred, Premium | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV)
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Buick LaCrosse Thermostat Housing Part Number: 12689039
$74.81 MSRP: $153.74
You Save: $78.93 (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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2016 Buick LaCrosse | 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 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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Buick LaCrosse | CXS | 6 Cyl 3.6 L GAS

Buick LaCrosse Thermostat Housing

Want to cut long-term maintenance and repair costs? Choose OEM Thermostat Housing. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Buick LaCrosse parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Buick LaCrosse Thermostat Housing includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

Another important part, which has a major significance for the further development of Buick LaCrosse, is the Thermostat Housing as a proof of durability and intentions in the field of car manufacturing. A part of the cooling system meant to prevent thermo regulation of the engine, the Thermostat Housing helps the Buick LaCrosse to achieve its ideal driving temperature as promptly as possible to boost both effectiveness and security. This component protects the thermostat and the external effects on it and is available with metal or plastic construction. The Thermostat Housing fits different models of LaCrosse; thus, it is a perfect product to go for, especially to those who own a Buick LaCrosse car with a damaged thermostat housing. Proper cooling performance is maintained by premium engine coolant water outlet necks and fillers that have used high-quality steel and aluminum materials. There is a straight, swivel and angled water necks available, so the design for custom engine cooling is versatile and allows for efficiency in heat transfer and performance. It is noteworthy that the element under consideration-Thermostat Housing-is unique in today's automotive industry because of dense construction and progressive concept to assist the vehicle performance. Standing safety options such as; multiple airbags make the Buick LaCrosse safe to drive with a special focus given by the manufacturer to safety as seen in the Buick brand's adherence to quality and engineering. To sum up, Thermostat Housing plays crucial role in effective functioning and safety of the car and once again underlines the denotive meaning of the Buick LaCrosse as the sedan with the top-quality characteristics and performances.

Buick LaCrosse Thermostat Housing Parts Questions & Experts Answers

Thermostat Housing
12597257
Q: How to replace the thermostat housing (LY7) on Buick LaCrosse?
A:
To replace the Thermostat Housing (LY7), one should start disconnecting the heater hoses from the heater core, then remove the Thermostat as well as the Thermostat Housing bolts. Next, disconnect the Thermostat Housing as well as the heater pipes, hoses, and bolts, and clean the sealing surfaces with a plastic gasket scraper (J 28410 or equivalent) very carefully. Unto installation, assemble the heater pipes and hoses to Thermostat Housing, then put on a new gasket into the Thermostat Housing. Monte the Thermostat Housing bolts partially to hold the gasket in place before installing the Thermostat Housing with the heater pipes, hoses, gasket, and bolts. Make sure to install the Thermostat Housing bolts and tighten them to 20 nm (15 ft. Lbs.). Last, install the Thermostat and reconnect the heater hoses to the heater core.