How to Replace the Thermostat Housing in a 3.6L V6 Engine on Cadillac STS?

The process begins with disconnecting heater hoses from the Heater Core when replacing the engine coolant Thermostat Housing (LY7 - Gas, 6 CYL, 3.6L, SFI, V6, Alum). Use the gasket remover (J 28410) to methodically clean both sealing surfaces. First remove the Thermostat and its housing bolts followed by removing the Thermostat Housing together with heater pipes and hoses and bolts. Connect heater pipes together with hoses to the new Thermostat Housing followed by a fresh gasket installation and a partial bolt installation to retain the gasket placement. You should first mount the Thermostat Housing alongside heater pipes and hoses and gasket before tightening the Thermostat Housing bolts to 20 n.m (15 lb ft). Cut the end of the heater hoses before installing the Thermostat unit and wrapping the hoses around the Heater Core.

OEM Cadillac STS Thermostat Housing

Engine Coolant Thermostat Housing

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7 Thermostat Housings found

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Cadillac STS Thermostat Housing
Part Number: 12597256
$20.44 MSRP: $37.85
You Save: $17.41 (46%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Housing, Engine Coolant Thermostat
- Replaces: 12620262, 12588205
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007 Cadillac STS | Base | 6 Cyl 3.6 L GAS
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Cadillac STS Thermostat Housing
Part Number: 12706567
$138.24 MSRP: $284.08
You Save: $145.84 (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: 12584433, 12620259, 12597255, 12573977
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2008 Cadillac STS | Base, Platinum | 6 Cyl 3.6 L GAS
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Cadillac STS Thermostat Housing
Part Number: 12706566
$129.65 MSRP: $266.43
You Save: $136.78 (52%)
Ships in 1-2 Business Days
ADD TO CART
Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Housing, Engine Coolant Thermostat
- Replaces: 12638185, 12652328, 12620251
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2011 Cadillac STS | Base, Platinum | 6 Cyl 3.6 L GAS
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Cadillac STS Thermostat Housing
Part Number: 12596643
Product Specifications
- Other Name: Housing, Engine Coolant Thermostat; Thermostat Housing Cover
- Replaces: 12569097
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2010 Cadillac STS | Base, Platinum | 8 Cyl 4.6 L GAS
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Cadillac STS Thermostat Housing
Part Number: 12620248
Product Specifications
- Other Name: Housing; Thermostat Housing Cover
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2008 Cadillac STS | Base, Platinum | 6 Cyl 3.6 L GAS
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Cadillac STS Thermostat Housing
Part Number: 12590868
Product Specifications
- Other Name: Thermostat Housing Cover
- Replaces: 12586469
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2006 Cadillac STS | Base | 6 Cyl 3.6 L GAS
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Cadillac STS Thermostat Housing
Part Number: 12590759
Product Specifications
- Other Name: Housing, Engine Coolant Temperature; Thermostat Housing Cover; Housing, Engine Coolant Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2009 Cadillac STS | V | 8 Cyl 4.4 L GAS

Cadillac STS Thermostat Housing

Our website offers an extensive catalog of genuine Cadillac STS Thermostat Housing at unbeatable prices. Every OEM Cadillac STS Thermostat Housing comes with a manufacturer's warranty, an easy return policy, and rapid delivery service. Don't miss out on this great opportunity!

Cadillac STS Thermostat Housing Parts Questions & Experts Answers

Thermostat Housing
12706567
Q: How to Replace the Thermostat Housing in a 3.6L V6 Engine on Cadillac STS?
A: The process begins with disconnecting heater hoses from the Heater Core when replacing the engine coolant Thermostat Housing (LY7 - Gas, 6 CYL, 3.6L, SFI, V6, Alum). Use the gasket remover (J 28410) to methodically clean both sealing surfaces. First remove the Thermostat and its housing bolts followed by removing the Thermostat Housing together with heater pipes and hoses and bolts. Connect heater pipes together with hoses to the new Thermostat Housing followed by a fresh gasket installation and a partial bolt installation to retain the gasket placement. You should first mount the Thermostat Housing alongside heater pipes and hoses and gasket before tightening the Thermostat Housing bolts to 20 n.m (15 lb ft). Cut the end of the heater hoses before installing the Thermostat unit and wrapping the hoses around the Heater Core.

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