How to replace the thermostat housing outlet on the LY7 or LLT engine on Cadillac CTS?

Engineers should start Thermostat Housing replacement of ly7 or llt engines by using cooling system draining and filling (GE 47716) to drain part of the cooling system. Before working on the Throttle Body of the llt engine remove it. The Radiator Hose must be disconnected from the Thermostat Housing while you remove all housing bolts. First remove the thermostat from the housing followed by seal disposal and surface cleaning of the Thermostat Housing. Replace the Thermostat Housing seals and the thermostat. Torque the Thermostat Housing bolts to 10 n.m (89 lb in). After installing the thermostat on the llt engine it is necessary to reinstall the Throttle Body as well. Finally follow cooling system draining and filling (GE 47716) to properly fill the cooling system.

How to Replace the Thermostat Housing in an Engine Coolant System on Cadillac XLR?

Before replacing the engine coolant Thermostat Housing (LC3 - 8 Cyl, 4.4L, SC, DOHC), users must begin by draining the cooling system with cooling system draining and filling through static fill (GE 47716) procedure. First detach the Thermostat Housing by removing the air cleaner elements before disconnecting the Radiator Hose and heater hose from their housing. Disassemble the Thermostat Housing by removing all bolts, extracting both housing and Thermostat from the water housing while discarding the seal ring and removing the Thermostat from within the housing. Installation requires cleaning both the Thermostat Housing sealing surfaces and the water housing before putting the Thermostat into position within the housing and applying a new seal onto the Thermostat Housing. Ferment the joint of Thermostat Housing including Thermostat and seal onto the water housing while maintaining proper torque on the bolts at 10 n.m (89 lb in). After reconnecting the heater hose and Radiator Hose to the Thermostat Housing, reinstall the air cleaner assembly. The cooling system requires filling through cooling system draining and filling (Static Fill) (GE 47716).

OEM Cadillac Thermostat Housing

Engine Coolant Thermostat Housing

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32 Thermostat Housings found

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Cadillac Thermostat Housing Part Number: 12638186
$85.50 MSRP: $175.72
You Save: $90.22 (52%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Housing, Engine Coolant Thermostat
- Replaces: 12608657
Fits the following Cadillac Models:
- SRX | 2010-2011 | Performance, Premium | 2.8L V6, 6 Cyl 2.8 L GAS
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Cadillac 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
Fits the following Cadillac Models:
- SRX | 2010-2016 | Base, Luxury, Performance, Premium | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- XTS | 2013 | Base, Livery, Luxury, Platinum, Premium | 6 Cyl 3.6 L GAS
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Cadillac Thermostat Housing Part Number: 12706566
$151.50 MSRP: $271.75
You Save: $120.25 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Housing, Engine Coolant Thermostat
- Replaces: 12638185, 12652328, 12620251
Fits the following Cadillac Models:
- CTS | 2008-2014 | Base, Luxury, Performance, Premium, Vsport, Vsport Premium | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- STS | 2009-2011 | Base, Platinum | 6 Cyl 3.6 L GAS
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Cadillac Thermostat Housing Part Number: 12690768
$121.56 MSRP: $218.04
You Save: $96.48 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Housing, Engine Coolant Thermostat
- Replaces: 12639905, 12681134
Fits the following Cadillac Models:
- ATS | 2016-2019 | V | 6 Cyl 3.6 L GAS
- CT4 | 2022-2024 | V Blackwing | 6 Cyl 3.6 L GAS
- CTS | 2014-2019 | Vsport, Vsport Premium, Vsport Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac Thermostat Housing Part Number: 12706565
$72.43 MSRP: $148.84
You Save: $76.41 (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: 12638184, 12620254, 12652327
Fits the following Cadillac Models:
- ATS | 2013-2018 | Luxury, Performance, Premium, Premium Luxury, Premium Performance, V | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- CTS | 2014-2016 | Luxury, Performance, Premium | 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Cadillac Thermostat Housing Part Number: 12671038
$41.88 MSRP: $78.64
You Save: $36.76 (47%)
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
Fits the following Cadillac Models:
- CT6 | 2019-2020 | Platinum, V | 8 Cyl 4.2 L GAS
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Cadillac 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 Cadillac Models:
- Eldorado | 1984-1985 | Base, Biarritz, Cabriolet, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
- Seville | 1984-1985 | Base, Elegante | 8 Cyl 4.1 L GAS
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Cadillac Thermostat Housing Part Number: 1646974
Product Specifications
- Other Name: Housing; Thermostat Housing Cover; Thermostat Outlet Housing; Housing, Engine Coolant Thermostat
Fits the following Cadillac Models:
- 60 Special | 1993 | Base | 8 Cyl 4.9 L GAS
- Brougham | 1990 | Base, d'Elegance | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- DeVille | 1992-1995, 1990 | Base, Touring | 8 Cyl 4.5 L GAS, 8 Cyl 4.9 L GAS
- Eldorado | 1992-1993, 1990 | Base, Biarritz, Touring | 8 Cyl 4.5 L GAS, 8 Cyl 4.9 L GAS
- Fleetwood | 1992, 1990 | 60 Special, Base, d'Elegance | 8 Cyl 4.5 L GAS, 8 Cyl 4.9 L GAS
- Seville | 1992-1993, 1990 | Base, STS | 8 Cyl 4.5 L GAS, 8 Cyl 4.9 L GAS
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Cadillac Thermostat Housing Part Number: 12596643
Product Specifications
- Other Name: Housing, Engine Coolant Thermostat; Thermostat Housing Cover
- Replaces: 12569097
Fits the following Cadillac Models:
- SRX | 2004-2009 | Base | 8 Cyl 4.6 L GAS
- STS | 2005-2010 | Base, Platinum | 8 Cyl 4.6 L GAS
- XLR | 2004-2009 | Base, Platinum | 8 Cyl 4.6 L GAS
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Cadillac Thermostat Part Number: 12620250
Product Specifications
- Other Name: Cover
Fits the following Cadillac Models:
- CTS | 2008 | Base | 6 Cyl 3.6 L GAS
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Cadillac Thermostat Housing Part Number: 10116245
Product Specifications
- Other Name: Housing, Engine Coolant Thermostat; Thermostat Housing Cover; Housing Kit, Engine Coolant Thermostat
Fits the following Cadillac Models:
- Cimarron | 1984-1985 | Base, d'Oro | 4 Cyl 2.0 L GAS, 6 Cyl 2.8 L GAS
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Cadillac Thermostat Housing Part Number: 12590758
Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
Fits the following Cadillac Models:
- XLR | 2006-2009 | V | 8 Cyl 4.4 L GAS
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Cadillac Thermostat Housing Part Number: 12590759
Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
Fits the following Cadillac Models:
- STS | 2006-2009 | V | 8 Cyl 4.4 L GAS
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Cadillac Thermostat Housing Part Number: 55353492
Product Specifications
- Other Name: Housing, Engine Coolant Thermostat; Thermostat Housing Cover; Thermostat Housing Gasket; Thermostat
- Replaces: 90502201
Fits the following Cadillac Models:
- CTS | 2003-2004 | Base, Luxury, Luxury Sport | 6 Cyl 3.2 L GAS
- Catera | 1997-2001 | Base, Sport | 6 Cyl 3.0 L GAS
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Cadillac Thermostat Housing Part Number: 12620248
Product Specifications
- Other Name: Housing; Thermostat Housing Cover
Fits the following Cadillac Models:
- CTS | 2008 | Base | 6 Cyl 3.6 L GAS
- STS | 2008 | Base, Platinum | 6 Cyl 3.6 L GAS
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Cadillac Thermostat Housing Part Number: 1621087
Product Specifications
- Other Name: Housing; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
Fits the following Cadillac Models:
- Brougham | 1987 | Base, d'Elegance | 8 Cyl 5.0 L GAS
- DeVille | 1985-1987 | Base, Cabriolet, d'Elegance, Touring | 8 Cyl 4.1 L GAS
- Fleetwood | 1985-1987 | 60 Special, 75, 75 Formal, Base, Brougham, Brougham d'Elegance, d'Elegance | 8 Cyl 4.1 L GAS, 8 Cyl 5.0 L GAS
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Cadillac Thermostat Housing Part Number: 1625774
Product Specifications
- Other Name: Housing; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
Fits the following Cadillac Models:
- Brougham | 1987-1989 | Base, d'Elegance | 8 Cyl 5.0 L GAS
- DeVille | 1985-1989 | Base, Cabriolet, d'Elegance, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 4.5 L GAS
- Eldorado | 1988-1989 | Base, Biarritz | 8 Cyl 4.5 L GAS
- Fleetwood | 1985-1989 | 60 Special, 75, 75 Formal, Base, Brougham, Brougham d'Elegance, d'Elegance | 8 Cyl 4.1 L GAS, 8 Cyl 4.5 L GAS, 8 Cyl 5.0 L GAS
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Cadillac Thermostat Housing Part Number: 10116221
Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
Fits the following Cadillac Models:
- Cimarron | 1986 | Base, d'Oro | 4 Cyl 2.0 L GAS, 6 Cyl 2.8 L GAS
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Cadillac Thermostat Housing Part Number: 12596140
Product Specifications
- Other Name: Thermostat Housing Cover
Fits the following Cadillac Models:
- CTS | 2005-2007 | Base | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS
- SRX | 2005-2006 | Base | 6 Cyl 3.6 L GAS
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Cadillac Thermostat Housing Part Number: 12590868
Product Specifications
- Other Name: Thermostat Housing Cover
- Replaces: 12586469
Fits the following Cadillac Models:
- CTS | 2004-2006 | Base | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS
- SRX | 2004 | Base | 6 Cyl 3.6 L GAS
- STS | 2005-2006 | Base | 6 Cyl 3.6 L GAS
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1-20 of 32 Results

Cadillac Thermostat Housing

Choose OEM Thermostat Housing, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Cadillac's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsGiant.com, you'll find it easy to get top-quality OEM Cadillac Thermostat Housing. You can shop at highly competitive prices and protect your budget. All our genuine Cadillac parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Cadillac Thermostat Housing Parts and Q&A

Thermostat Housing
12706566
Q: How to replace the thermostat housing outlet on the LY7 or LLT engine on Cadillac CTS?
A:
Engineers should start Thermostat Housing replacement of ly7 or llt engines by using cooling system draining and filling (GE 47716) to drain part of the cooling system. Before working on the Throttle Body of the llt engine remove it. The Radiator Hose must be disconnected from the Thermostat Housing while you remove all housing bolts. First remove the thermostat from the housing followed by seal disposal and surface cleaning of the Thermostat Housing. Replace the Thermostat Housing seals and the thermostat. Torque the Thermostat Housing bolts to 10 n.m (89 lb in). After installing the thermostat on the llt engine it is necessary to reinstall the Throttle Body as well. Finally follow cooling system draining and filling (GE 47716) to properly fill the cooling system.
Thermostat Housing
12596643
Q: How to Replace the Thermostat Housing in an Engine Coolant System on Cadillac XLR?
A:
Before replacing the engine coolant Thermostat Housing (LC3 - 8 Cyl, 4.4L, SC, DOHC), users must begin by draining the cooling system with cooling system draining and filling through static fill (GE 47716) procedure. First detach the Thermostat Housing by removing the air cleaner elements before disconnecting the Radiator Hose and heater hose from their housing. Disassemble the Thermostat Housing by removing all bolts, extracting both housing and Thermostat from the water housing while discarding the seal ring and removing the Thermostat from within the housing. Installation requires cleaning both the Thermostat Housing sealing surfaces and the water housing before putting the Thermostat into position within the housing and applying a new seal onto the Thermostat Housing. Ferment the joint of Thermostat Housing including Thermostat and seal onto the water housing while maintaining proper torque on the bolts at 10 n.m (89 lb in). After reconnecting the heater hose and Radiator Hose to the Thermostat Housing, reinstall the air cleaner assembly. The cooling system requires filling through cooling system draining and filling (Static Fill) (GE 47716).