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Chevy Thermostats

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The original thermostat installed at the factory does one thing, but it does it remarkably well. Simply put, its role is to respond to temperature changes in the engine coolant. If the coolant is cold, the thermostat remains closed and keeps it in the engine. When it gets too hot, the thermostat opens to allow the coolant to flow back to the radiator and get cooled down again. How does the thermostat know that the coolant is too hot? It has a unique wax that acts as an expanding agent. When the fluid gets to a specific temperature, the wax expands, and the thermostat valve opens to allow the coolant to travel through the hoses to the radiator.

Signs of a Failing Thermostat

Thermostats are quite durable. In fact, it's not unheard of for people to own their car or SUV for a decade without needing to replace theirs. However, they're not infallible. If you're concerned yours may not be working right, there are some signs to look for. Your first clue will be the "Check Engine" light coming on. If the thermostat valve stops operating properly, it can't open to release the coolant. If that's the case, you may experience engine trouble, or a HVAC system that stops properly cooling and heating the cabin. Run an inspection to be sure that the thermostat is the source of the trouble. If it is, it's smartest to replace it with a genuine GM thermostat that's designed to work with your systems. They're available for online ordering from our auto parts department. Order yours now and save!

Thermostat
Part Number: 96055553
Other Names: F (S)Thermostat More Names
Description: All models. 82 degrees. More Info
MSRP $22.26
$15.86
MSRP $22.26
$15.86
Thermostat Housing
Part Number: 14001120
Other Names: Engine Coolant Thermostat Housing More Names
Description: All models. Outlet. 6 cylinder. Gas. More Info
MSRP $21.28
$19.15
MSRP $21.28
$19.15
Thermostat Housing
Part Number: 25527300
Other Names: Engine Coolant Thermostat Housing More Names
Description: Olds, pontiac. 3.0L. All. Buick. 3.0L. Two Bypass Ports. More Info
MSRP $26.77
$24.09
MSRP $26.77
$24.09
Thermostat Housing
Part Number: 10019090
Options: Lower
Other Names: Engine Coolant Thermostat Housing More Names
Description: Astro, Safari. 2.5l. More Info
MSRP $32.00
$28.80
MSRP $32.00
$28.80
Thermostat Housing
Part Number: 22538312
Other Names: Water Outlet, Engine Coolant Thermostat Housing More Names
Description: Buick. 2.3L. 4 cylinder. Beretta, Corsica. 2.3l. More Info
MSRP $44.74
$40.27
MSRP $44.74
$40.27
Thermostat Housing
Part Number: 10105935
Other Names: Water Outlet, Engine Coolant Thermostat Housing More Names
Description: Cpi. 4.3L. More Info
MSRP $25.83
$23.25
MSRP $25.83
$23.25
Thermostat Housing
Part Number: 25516131
Other Names: Engine Coolant Thermostat Housing More Names
Description: Gas. 6 cylinder. 3.8l. More Info
MSRP $145.04
$130.54
MSRP $145.04
$130.54
Thermostat Housing
Part Number: 25535941
Other Names: Engine Coolant Thermostat Housing More Names
Description: All models. With hi-output engine. Gas. 6 cylinder. 3.8l. Buick, oldsmobile. More Info
MSRP $32.88
$29.59
MSRP $32.88
$29.59
Thermostat Housing
Part Number: 12635761
Other Names: Thermostat, Housing More Names
Description: Volt. More Info
Notes: Included with Water pump assembly. Includes Water Inlet And Thermostat Gasket. More Notes
MSRP $125.60
$73.48
MSRP $125.60
$73.48
Thermostat Housing
Part Number: 10126718
Other Names: Engine Coolant Thermostat Housing More Names
Description: All. 5.7l. All. 5.0l. G10-30 vans. 5.7l. G10-30 vans. 5.0l. G10-30 vans. 7.4l. More Info
MSRP $49.79
$44.81
MSRP $49.79
$44.81
Thermostat Housing
Part Number: 10151656
Other Names: Housing, Thermostat Outlet More Names
Description: 3.4L. More Info
MSRP $41.16
$37.04
MSRP $41.16
$37.04
Thermostat Housing
Part Number: 22535042
Other Names: Engine Coolant Thermostat Housing More Names
Description: Olds, pontiac. 2.3L. Buick. 2.3L. More Info
MSRP $30.14
$27.13
MSRP $30.14
$27.13
Thermostat Housing
Part Number: 01609644
Options: Upper
Other Names: Engine Coolant Thermostat Housing More Names
Description: Housing. Upper. Gas. More Info
MSRP $21.91
$19.72
MSRP $21.91
$19.72
Engine Coolant Thermostat
Part Number: 97241129
Options: Front
Other Names: Thermostat More Names
Description: Silverado, sierra. 6.6l. 185 degrees. All models. 6.6l. 6.6L, front. Express, savana. 6.6l diesel. 185 degree. Controls the flow of... More Info
MSRP $68.40
$41.04
MSRP $68.40
$41.04
Engine Coolant Thermostat
Part Number: 01623547
Other Names: Thermostat More Names
Description: 6 cylinder. With fuel injection. Gas. More Info
MSRP $16.56
$14.90
MSRP $16.56
$14.90
Engine Coolant Thermostat
Part Number: 24577299
Other Names: Engine Coolant Thermostat More Names
Description: Incl.Gasket. 3.1l. All models. All. 2.2l. Cavalier, Sunfire. 2.2l. 3.4L. 2.8l. 2.2L, without dohc. Controls the flow of coolant through... More Info
MSRP $21.78
$13.61
MSRP $21.78
$13.61
Engine Coolant Thermostat
Part Number: 25200456
Other Names: Thermostat More Names
Replaces: 55576890, 55593035
Description: Volt. ELR. Helps retain the thermostat to monitor the flow of coolant through your vehicle's engine and radiator\ \ This GM Genuine Part... More Info
Notes: Includes Water Inlet And Thermostat Gasket. More Notes
MSRP $88.03
$58.71
MSRP $88.03
$58.71
Engine Coolant Thermostat
Part Number: 94214962
Other Names: Thermostat More Names
Description: Diesel. More Info
MSRP $27.26
$24.53
MSRP $27.26
$24.53
Engine Coolant Thermostat
Part Number: 12514334
Other Names: Engine Coolant Thermostat More Names
Description: All models. 7.4l. 5.7-8. 4 cylinder. 5.0l. Mpi. Astro, Safari. Controls the flow of coolant through the radiator to help your vehicle's... More Info
MSRP $18.20
$11.38
MSRP $18.20
$11.38
Engine Coolant Thermostat
Part Number: 12555290
Other Names: Engine Coolant Thermostat More Names
Description: All models. Buick, chevrolet. 5.7L. 8 cylinder, 1993-97. Without zr1. Cadillac. 4.3l. V-8. Controls the flow of coolant through your... More Info
MSRP $49.04
$29.42
MSRP $49.04
$29.42
Engine Coolant Thermostat
Part Number: 12559337
Other Names: Engine Coolant Thermostat More Names
Description: All models. 6.5l diesel. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal... More Info
MSRP $37.49
$23.43
MSRP $37.49
$23.43
Engine Coolant Thermostat
Part Number: 12559575
Other Names: Engine Coolant Thermostat More Names
Description: Express, savana. 7.4l. Express, savana. 8.1l. Controls the flow of coolant through your vehicle's radiator to help the engine reach and... More Info
Notes: Included with thermostat housing. More Notes
MSRP $23.16
$14.48
MSRP $23.16
$14.48
Engine Coolant Thermostat
Part Number: 12600171
Other Names: Engine Coolant Thermostat More Names
Description: Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature More Info
Notes: Included with water inlet. Included with inlet assembly. Included with thermostat cover. Included with thermostat housing. Included with... More Notes
MSRP $36.80
$22.99
MSRP $36.80
$22.99
Engine Coolant Thermostat
Part Number: 12601556
Other Names: Thermostat More Names
Description: XLR. 4.4l. STS-v. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal... More Info
MSRP $39.06
$24.41
MSRP $39.06
$24.41
Engine Coolant Thermostat
Part Number: 12680456
Other Names: Thermostat More Names
Description: Silverado, sierra. 6.6l. 185 degrees. 6.6L diesel, 185 deg. Silverado, Sierra 2500 HD. 185 degrees. Silverado, Sierra 3500 HD. 185... More Info
MSRP $35.74
$22.34
MSRP $35.74
$22.34
Engine Coolant Thermostat
Part Number: 10190925
Other Names: Engine Coolant Thermostat More Names
Description: All models. Tbi. 6 cylinder, without high output. Astro, Safari. 58.7mm Wide. Vendor:acdelco. Vendor #131-71. 4.3L. Controls the flow of... More Info
MSRP $18.09
$11.30
MSRP $18.09
$11.30
Engine Coolant Thermostat
Part Number: 22538325
Other Names: Thermostat More Names
Description: All models. 2.3L. Buick. V8. Chevrolet. 307. Oldsmobile. Pontiac. Gas. More Info
MSRP $12.24
$7.65
MSRP $12.24
$7.65
Engine Coolant Thermostat
Part Number: 03050922
Other Names: Thermostat More Names
Description: 4 cylinder. Astro, Safari. 2.5l. More Info
MSRP $9.97
$8.97
MSRP $9.97
$8.97
Engine Coolant Thermostat
Part Number: 03539588
Other Names: Engine Coolant Thermostat More Names
Description: Allante. Eldorado. 4.9l. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal... More Info
MSRP $16.78
$10.49
MSRP $16.78
$10.49
Engine Coolant Thermostat
Part Number: 12622410
Other Names: Thermostat More Names
Description: Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature More Info
Notes: Included with thermostat housing. Included with Water pump assembly. More Notes
MSRP $119.26
$69.77
MSRP $119.26
$69.77
Engine Coolant Thermostat
Part Number: 12632948
Other Names: Engine Coolant Thermostat More Names
Description: S-series. 4.3l. 6 cylinder, with high output. Astro, Safari. Cpi, mpi. All models. Express, savana. 2003-14. Silverado, sierra. 4.3l.... More Info
MSRP $39.02
$24.39
MSRP $39.02
$24.39
Engine Coolant Thermostat
Part Number: 10112301
Other Names: Thermostat More Names
Description: All models. All. 2.2l. More Info
MSRP $14.90
$9.31
MSRP $14.90
$9.31
Engine Coolant Thermostat
Part Number: 10192505
Other Names: Thermostat More Names
Description: All. 2.0l. All models. 2.5l. More Info
MSRP $17.42
$10.89
MSRP $17.42
$10.89
Thermostat Outlet Housing
Part Number: 24502842
Other Names: Thermostat Outlet Housing, Thermostat Housing, Engine Coolant Thermostat Housing, Water Outlet More Names
Description: Sfi. Optional. All models. 3.8l. With supercharger. Riviera. More Info
MSRP $36.08
$32.47
MSRP $36.08
$32.47
Engine Coolant Thermostat
Part Number: 25199831
Other Names: Thermostat Unit More Names
Replaces: 25192923
Description: Spark. Without ev. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal... More Info
MSRP $85.23
$51.13
MSRP $85.23
$51.13
Engine Coolant Thermostat
Part Number: 03038094
Other Names: Thermostat More Names
Description: LeMans. 1.6l. Controls the flow of coolant through the radiator to help your vehicle's engine reach and maintain its optimal operating... More Info
MSRP $13.35
$8.35
MSRP $13.35
$8.35
Engine Coolant Thermostat
Part Number: 03059081
Other Names: Thermostat More Names
Description: High Temperature. Vendor:acdelco. Vendor #131-32. 6 cylinder. All. More Info
MSRP $8.74
$7.87
MSRP $8.74
$7.87
Engine Coolant Thermostat
Part Number: 55503988
Other Names: Thermostat More Names
Description: 1.2L. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature More Info
Notes: Includes Housing. Included with Water pump assembly. More Notes
MSRP $58.69
$35.21
MSRP $58.69
$35.21
Thermostat Housing Bracket
Part Number: 13104973
Other Names: Engine Coolant Thermostat Housing Bracket More Names
Description: Coupe, 2.2L. Sedan,. 2.2L, 2005. 2.2L, 2004-05. More Info
MSRP $44.63
$40.17
MSRP $44.63
$40.17
Engine Coolant Thermostat
Part Number: 91176904
Other Names: Thermostat More Names
Description: Tracker. 2.5l. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating... More Info
MSRP $72.06
$43.24
MSRP $72.06
$43.24
Engine Coolant Thermostat
Part Number: 14077122
Other Names: Engine Coolant Thermostat More Names
Description: G10-30 vans. 6.2l, diesel. All models. 6.2l diesel. Controls the flow of coolant through your vehicle's radiator to help the engine... More Info
MSRP $19.48
$12.18
MSRP $19.48
$12.18
Engine Coolant Thermostat
Part Number: 12559338
Other Names: Engine Coolant Thermostat More Names
Description: All models. 6.2l, diesel. All models. 6.5l diesel. 1st Design. Single Thermostat. Controls the flow of coolant through your vehicle's... More Info
MSRP $59.57
$35.75
MSRP $59.57
$35.75
Engine Coolant Thermostat
Part Number: 24507563
Other Names: Engine Coolant Thermostat More Names
Description: Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature More Info
MSRP $35.29
$22.05
MSRP $35.29
$22.05
Engine Coolant Thermostat
Part Number: 24577288
Other Names: Engine Coolant Thermostat More Names
Description: Cavalier, Sunfire. 2.2l. Ohv. Cavalier, Sunfire. 2.3l. 1997-03, 2.4L. 2.3L, 2.4L & 2.2L without dohc, 2.3L. Controls the flow of coolant... More Info
MSRP $24.18
$15.11
MSRP $24.18
$15.11
Engine Coolant Thermostat
Part Number: 24588515
Other Names: Thermostat Housing More Names
Replaces: 12642691
Description: Express, savana. Canyon, Colorado. 2.8L turbo diesel. Thermostat hsng. Controls the flow of coolant through your vehicle's radiator to... More Info
Notes: Includes Thermostat And Gaskets. More Notes
MSRP $141.88
$83.00
MSRP $141.88
$83.00
Engine Coolant Thermostat
Part Number: 88974571
Other Names: Thermostat More Names
Replaces: 19185390
Description: 2.4L. Vibe. With gt. 1.8L. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its... More Info
MSRP $57.23
$34.33
MSRP $57.23
$34.33
Engine Coolant Thermostat
Part Number: 12559336
Other Names: Thermostat More Names
Replaces: 12554977
Description: Express, savana. 6.5l diesel. Controls the flow of coolant through your vehicle's radiator to help it reach and maintain optimal... More Info
MSRP $43.78
$26.27
MSRP $43.78
$26.27
Engine Coolant Thermostat
Part Number: 12559807
Other Names: Thermostat More Names
Description: Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature More Info
Notes: Included with thermostat housing. More Notes
MSRP $70.21
$42.12
MSRP $70.21
$42.12
Engine Coolant Thermostat
Part Number: 12591881
Other Names: Thermostat More Names
Description: Terraza, Uplander. 3.8, 3.9L. Lucerne. Malibu, Malibu Maxx. 3.9l. G6. 3.9l. 3.9L, 2007-09. Aura. 3.5l. Vue. 3.9L, 2006. Controls the... More Info
Notes: Included with water inlet. Includes Thermostat Gasket. Included with thermostat cover. Included with thermostat housing. More Notes
MSRP $77.83
$46.70
MSRP $77.83
$46.70
Engine Coolant Thermostat
Part Number: 12661950
Other Names: Thermostat More Names
Description: CT6. 4.2L twin-turbo. Camaro. 7.0L. Corvette. Coolant manifold inlet. Controls the flow of coolant through your vehicle's radiator to... More Info
Notes: Included with water pump. Included with water manifold. More Notes
MSRP $58.47
$35.08
MSRP $58.47
$35.08

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