How do you remove and replace the thermostat in a Cadillac CTS?

To remove and replace the thermostat in a vehicle, disconnect the cable from the negative battery terminal and drain the cooling system. On V6 engine models, loosen the radiator hose clamp and detach the hose. Remove the bolt holding the outlet pipe, oil dipstick tube, and engine lifting bracket, then pull the outlet pipe and O-rings. Remove the intake manifold and the thermostat housing fasteners. Press down on the thermostat and rotate it to clear the locking ears, then remove it. Remove the coolant pipe front and rear fasteners, as well as the pipe to thermostat housing fasteners, and remove the pipes from the thermostat housing. Remove the thermostat cover fasteners, detach the cover and thermostat, remove the cooling fan assembly, and disconnect the radiator hose clamp.

Genuine Cadillac CTS Thermostat

Engine Coolant Thermostat

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10 Thermostats found

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Cadillac CTS Outlet Assembly, Water Pump (W/Thermostat)
Part Number: 12674634
$77.91 MSRP: $163.66
You Save: $85.75 (53%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Outlet Assembly, W/Pmp (W/Therm); Thermostat Housing, Water Outlet
- Replaces: 12658723, 12670049
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR V-SERIES SEDAN | 8 Cyl 6.2L
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Cadillac CTS Housing Assembly, Eng Cool Therm
Part Number: 12678784
$64.32 MSRP: $154.14
You Save: $89.82 (59%)
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Product Specifications
- Replaces: 12673280, 12647180, 12670209
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN | 6 Cyl 3.6L
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Cadillac CTS Thermostat,Engine Coolant
Part Number: 12600171
$21.44 MSRP: $40.48
You Save: $19.04 (48%)
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat, Thermostat Unit
- Replaces: 12581595
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Cadillac CTS | V 4 DOOR | 8 Cyl 5.7L, 8 Cyl 6.0L
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Cadillac CTS Housing Assembly, Eng Cool Therm
Part Number: 25201447
$63.30 MSRP: $132.98
You Save: $69.68 (53%)
Ships in 1-2 Business Days
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Product Specifications
- Replaces: 12651603
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN | 4 Cyl 2.0L
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Cadillac CTS Housing Assembly, Eng Cool Therm
Part Number: 12706565
$67.63 MSRP: $142.08
You Save: $74.45 (53%)
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Product Specifications
- Other Name: Thermostat Housing
- Replaces: 12638184, 12620254, 12652327
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2015 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN | 6 Cyl 3.6L
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Cadillac CTS THERMOSTAT KIT,ENG COOL
Part Number: 19420815
$37.08 MSRP: $75.24
You Save: $38.16 (51%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2015 Cadillac CTS | V 2 DOOR COUPE, V 4 DOOR, V 4 DOOR SEDAN, V 4 DOOR WAGON | 8 Cyl 6.2L
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Cadillac CTS Housing Assembly, Eng Cool Therm
Part Number: 12706567
$125.40 MSRP: $263.44
You Save: $138.04 (53%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Thermostat Housing
- Replaces: 12584433, 12620259, 12597255, 12573977
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.6L
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Cadillac CTS Housing Assembly, Engine Coolant Thermostat
Part Number: 12597256
$25.56 MSRP: $37.85
You Save: $12.29 (33%)
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Product Specifications
- Other Name: HOUSING, Engine Coolant Thermostat; Thermostat Housing
- Replaces: 12620262, 12588205
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2007 Cadillac CTS | 4 DOOR RHD | 6 Cyl 2.8L, 6 Cyl 3.6L
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Cadillac CTS Thermostat,Engine Coolant
Part Number: 24420653
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 3.2L
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Cadillac CTS Housing,Engine Coolant Thermostat
Part Number: 55353492
Product Specifications
- Other Name: HOUSING, Engine Coolant Thermostat
- Replaces: 90502201
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 3.2L

Cadillac CTS Thermostat

Cadillac CTS Thermostat is one of the car parts that is relevant to the cooling system, commonly located in closeness to the radiator. Although its main purpose is to cool the engine in order for it to perform well, it does plays other important roles. The typical thermostats are the closed-loop control devices that categorize the heat transfer fluids with the help of the set temperature. There have been different types of thermostats used in the past, basic thermostats like the bimetallic strip type, wax pellet type and the pneumatic thermostats. These developments have greatly helped boost the capacities to cool and heat car systems which not only comforts more and perform better.

Each OEM Cadillac CTS Thermostat we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Cadillac CTS Thermostat Parts Questions & Experts Answers

Thermostat Kit,Engine Coolant
89018168
Q: How do you remove and replace the thermostat in a Cadillac CTS?
A: To remove and replace the thermostat in a vehicle, disconnect the cable from the negative battery terminal and drain the cooling system. On V6 engine models, loosen the radiator hose clamp and detach the hose. Remove the bolt holding the outlet pipe, oil dipstick tube, and engine lifting bracket, then pull the outlet pipe and O-rings. Remove the intake manifold and the thermostat housing fasteners. Press down on the thermostat and rotate it to clear the locking ears, then remove it. Remove the coolant pipe front and rear fasteners, as well as the pipe to thermostat housing fasteners, and remove the pipes from the thermostat housing. Remove the thermostat cover fasteners, detach the cover and thermostat, remove the cooling fan assembly, and disconnect the radiator hose clamp.