How to check and replace a thermostat in a cooling system on Chevrolet Avalanche,Silverado,Suburban,Tahoe,GMC Sierra,Yukon,Yukon Denali and Yukon XL?

Before assuming the thermostat is to blame for a cooling system problem, it is important to check the coolant level, drive belt tension, and temperature gauge (or light) operation. To remove and install the thermostat, follow the steps for either the V6 or V8 model. Also, clean the mating surfaces, install a new rubber O-ring around the thermostat, and check and replace hoses and clamps as necessary. Installation is the reverse of the removal. After installation, refill the cooling system, run the engine, and check carefully for leaks.

Genuine GMC Yukon Thermostat

Engine Coolant Thermostat

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18 Thermostats found

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GMC Yukon Outlet Assembly, Water Pump (W/Thermostat)
Part Number: 12674639
$55.93 MSRP: $117.50
You Save: $61.57 (53%)

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Product Specifications
- Other Name: Outlet Assembly, W/Pmp (W/Therm); Thermostat, Thermostat Housing, Water Outlet
- Replaces: 12666569, 12671393, 12657137
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2020 GMC Yukon | 1500 4 DOOR SUV, 1500 4 DOOR UTILITY, 4 DOOR, 4 DOOR SUV | 8 Cyl 5.3L, 8 Cyl 6.2L
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GMC Yukon Thermostat Kit,Engine Coolant
Part Number: 89018168
$37.24 MSRP: $75.53
You Save: $38.29 (51%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: THERMOSTAT KIT, Engine Coolant Temperature; Thermostat
- Replaces: 89017851
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2021 GMC Yukon | , 1/2 TON, YUKON/DENALI/ESCALADE | 8 Cyl 5.3L, 8 Cyl 6.2L
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GMC Yukon Thermostat,Engine Coolant
Part Number: 97241129
$33.71 MSRP: $68.40
You Save: $34.69 (51%)
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2005 GMC Yukon | 3/4 TON, XL 3/4 TON
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GMC Yukon Thermostat,Engine Coolant
Part Number: 97241130
$31.68 MSRP: $59.78
You Save: $28.10 (48%)
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2005 GMC Yukon | 3/4 TON, XL 3/4 TON
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GMC Yukon Thermostat,Engine Coolant
Part Number: 12600171
$21.44 MSRP: $40.48
You Save: $19.04 (48%)
Ships in 1-2 Business Days
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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:
- 2004-2006 GMC Yukon | 1/2 TON, 3/4 TON, YUKON/DENALI/ESCALADE | 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L
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GMC Yukon Thermostat,Engine Coolant
Part Number: 12632948
$27.93 MSRP: $52.70
You Save: $24.77 (47%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 12257859, 12563335, 12557859, 12597583, 12551472
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-2000 GMC Yukon | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 5.7L
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GMC Yukon Thermostat,Engine Coolant
Part Number: 10190925
$13.67 MSRP: $25.80
You Save: $12.13 (48%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 10147886, 10190927
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1995 GMC Yukon | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 5.7L
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GMC Yukon Thermostat,Engine Coolant
Part Number: 12559575
$17.90 MSRP: $33.78
You Save: $15.88 (48%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 12559269, 12559573, 10210450
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2006 GMC Yukon | 3/4 TON, XL 3/4 TON | 8 Cyl 8.1L
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GMC Yukon Thermostat,Engine Coolant
Part Number: 24577299
$16.68 MSRP: $29.91
You Save: $13.23 (45%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Intake Manifold, Thermostat, Thermostat Unit
- Replaces: 24576634, 10182377, 24577130
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 GMC Yukon | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON
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GMC Yukon 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:
- 2022-2024 GMC Yukon | 1/2 TON, YUKON XL/DENALI XL/ESCALADE ESV | 8 Cyl 5.3L, 8 Cyl 6.2L
- 2007-2014 GMC Yukon | 1/2 TON, 3/4 TON, XL 3/4 TON, YUKON XL/DENALI XL/ESCALADE ESV, YUKON/DENALI/ESCALADE | 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex, 8 Cyl 6.2L, 8 Cyl 6.2L Flex
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GMC Yukon Thermostat Assembly, Engine Coolant
Part Number: 12661950
$35.87 MSRP: $64.35
You Save: $28.48 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: THERMOSTAT KIT, Engine Coolant Temperature; Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2023-2024 GMC Yukon | , YUKON XL/DENALI XL/ESCALADE ESV | 8 Cyl 6.2L
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GMC Yukon Thermostat Assembly, Engine Coolant
Part Number: 12680456
$20.86 MSRP: $39.36
You Save: $18.50 (47%)
ADD TO CART
Product Specifications
- Other Name: Thermostat Assembly, Eng Cool; Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005 GMC Yukon | 3/4 TON
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GMC Yukon Thermostat,Engine Coolant(W/Gasket)
Part Number: 12559336
$35.10 MSRP: $66.22
You Save: $31.12 (47%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 12554977
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1997 GMC Yukon | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 6.5L Diesel
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GMC Yukon Thermostat,Engine Coolant
Part Number: 12559338
$39.15 MSRP: $70.21
You Save: $31.06 (45%)
Product Specifications
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 10154622, 12551496
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 GMC Yukon | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 6.5L Diesel
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GMC Yukon Housing,Engine Coolant Thermostat
Part Number: 12553405
Product Specifications
- Other Name: HOUSING, Engine Coolant Thermostat; Thermostat Housing
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1997 GMC Yukon | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 6.5L Diesel
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GMC Yukon Housing, Engine Coolant Thermostat
Part Number: 97383583
Product Specifications
- Other Name: Thermostat Housing
- Replaces: 97222428
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2001-2005 GMC Yukon | 3/4 TON, XL 3/4 TON
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GMC Yukon Housing, Engine Coolant Thermostat
Part Number: 12551519
Product Specifications
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996 GMC Yukon | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 6.5L Diesel
View related parts
GMC Yukon Housing,Engine Coolant Thermostat
Part Number: 23500374
Product Specifications
- Other Name: HOUSING, Engine Coolant Thermostat
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 GMC Yukon | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 6.5L Diesel

GMC Yukon Thermostat

The Thermostat is part of the cooling chamber and is fixed in the vicinity of the radiator to control the temperature in GMC Yukon automobiles. One of its main purposes is to regulate the temperature of the engine and operate at its premier capability. The thermostat works the same way as a closed loop control system, in that it turns the heating or cooling on/off depending on the temperature. Different models of GMC Yukon have featured different kinds of thermostats; mechanical kinds include bimetallic strips and wax pellet thermostats. A good example is the wax pellet thermostats which are utilized because they have the capacity to alter their size according to changes in temperature of an engine. Technological improvements in thermostats go to the central aspect of enhancing the car's efficiency and comfort in as much as it is significant in the general health of the car's engine.

Each OEM GMC Yukon 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.

GMC Yukon Thermostat Parts Questions & Experts Answers

Thermostat Kit,Engine Coolant
89018168
Q: How to check and replace a thermostat in a cooling system on Chevrolet Avalanche,Silverado,Suburban,Tahoe,GMC Sierra,Yukon,Yukon Denali and Yukon XL?
A: Before assuming the thermostat is to blame for a cooling system problem, it is important to check the coolant level, drive belt tension, and temperature gauge (or light) operation. To remove and install the thermostat, follow the steps for either the V6 or V8 model. Also, clean the mating surfaces, install a new rubber O-ring around the thermostat, and check and replace hoses and clamps as necessary. Installation is the reverse of the removal. After installation, refill the cooling system, run the engine, and check carefully for leaks.