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 Chevrolet Tahoe Thermostat

Engine Coolant Thermostat

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11 Thermostats found

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Chevrolet Tahoe Thermostat,Engine Coolant
Part Number: 12559338
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 12551496, 10154622
$36.22 MSRP: $70.21
You Save: $33.99 (49%)

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More Info
Fits the following Vehicles:
1995 Chevrolet Tahoe | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 6.5L Diesel
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Chevrolet Tahoe Thermostat Kit,Engine Coolant
Part Number: 89018168
- Other Name: THERMOSTAT KIT, Engine Coolant Temperature; Thermostat
- Replaces: 89017851
$36.27 MSRP: $73.55
You Save: $37.28 (51%)

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Fits the following Vehicles:
2021 Chevrolet Tahoe | 4 DOOR 1/2 TON | 8 Cyl 5.3L, 8 Cyl 6.2L
2007-2014 Chevrolet Tahoe | 4 DOOR 1/2 TON | 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex, 8 Cyl 6.0L, 8 Cyl 6.0L Flex
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Chevrolet Tahoe Thermostat,Engine Coolant
Part Number: 12600171
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat, Thermostat Unit
- Replaces: 12581595
$20.88 MSRP: $39.42
You Save: $18.54 (48%)

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Fits the following Vehicles:
2004-2006 Chevrolet Tahoe | 4 DOOR 1/2 TON | 8 Cyl 4.8L, 8 Cyl 5.3L, 8 Cyl 5.3L Flex
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Chevrolet Tahoe Thermostat,Engine Coolant
Part Number: 12632948
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 12551472, 12257859, 12563335, 12597583, 12557859
$27.20 MSRP: $51.32
You Save: $24.12 (47%)

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Fits the following Vehicles:
1996-2000 Chevrolet Tahoe | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 5.7L
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Chevrolet Tahoe Thermostat,Engine Coolant
Part Number: 10190925
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 10190927, 10147886
$13.31 MSRP: $25.12
You Save: $11.81 (48%)

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Fits the following Vehicles:
1995 Chevrolet Tahoe | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 5.7L
Less Info
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Chevrolet Tahoe Thermostat,Engine Coolant
Part Number: 24577299
- Other Name: THERMOSTAT, Engine Coolant Temperature; Intake Manifold, Thermostat, Thermostat Unit
- Replaces: 24576634, 10182377, 24577130
$16.25 MSRP: $29.13
You Save: $12.88 (45%)

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More Info
Fits the following Vehicles:
1995 Chevrolet Tahoe | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON
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Chevrolet Tahoe Thermostat,Engine Coolant(W/Gasket)
Part Number: 12559336
- Other Name: THERMOSTAT, Engine Coolant Temperature; Thermostat
- Replaces: 12554977
$34.17 MSRP: $64.48
You Save: $30.31 (48%)

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More Info
Fits the following Vehicles:
1996-1999 Chevrolet Tahoe | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 6.5L Diesel
Less Info
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Chevrolet Tahoe Outlet Assembly, Water Pump (W/Thermostat)
Part Number: 12674639
- Other Name: Outlet Assembly, W/Pmp (W/Therm); Thermostat, Thermostat Housing, Water Outlet
- Replaces: 12666569, 12671393, 12657137
$59.55 MSRP: $106.83
You Save: $47.28 (45%)
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Fits the following Vehicles:
2015-2020 Chevrolet Tahoe | 1500 4 DOOR UTILITY | 8 Cyl 5.3L, 8 Cyl 6.2L
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Chevrolet Tahoe Housing,Engine Coolant Thermostat
Part Number: 12553405
- Other Name: HOUSING, Engine Coolant Thermostat; Thermostat Housing
More Info
Fits the following Vehicles:
1996-1999 Chevrolet Tahoe | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 6.5L Diesel
Less Info
View related parts
Chevrolet Tahoe Housing, Engine Coolant Thermostat
Part Number: 12551519
More Info
Fits the following Vehicles:
1996 Chevrolet Tahoe | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 6.5L Diesel
Less Info
View related parts
Chevrolet Tahoe Housing,Engine Coolant Thermostat
Part Number: 23500374
- Other Name: HOUSING, Engine Coolant Thermostat
More Info
Fits the following Vehicles:
1995 Chevrolet Tahoe | CLASSIC 2 DOOR 1/2 TON, CLASSIC 4 DOOR 1/2 TON | 8 Cyl 6.5L Diesel
Less Info

Chevrolet Tahoe Thermostat Parts Questions & 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.