Genuine GM Thermostats

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What do car thermostats do? Put simply, they help prevent engine overheats. However, they're just simple valves, and how such a small part of a cooling system can achieve this isn't so obvious. Yes, how one works may be simple -- a spring or piston opens and closes it, enabling coolant to circulate between an engine and a radiator. However, it's synchrony that's key. It's what keeps coolant moving in a way that keeps it in the right temperature range, hot weather or cold. Many other auto parts pitch in on the process, and everything happens as it should -- so well, in fact, that car thermostat failure is very rare. So, the question of when to replace a car thermostat? It doesn't come up often. If you're wondering, check your temperature gauge. If it reads constant, with a needle that's dead-center or in the slightly cold range, then your thermostat's working just fine. However, that doesn't mean it can't go bad, whether from age or some other cause.

What are the Symptoms of a Car Thermostat Not Working Right?

They vary. Look for a lit Check Engine light, valve operation problems, a stuck valve, engine issues, AC and heating malfunctions, coolant not moving correctly, and hose and gasket warp. In these cases, run a complete inspection to figure out what's going on. If you need to change your car thermostat, it's best to replace it with a genuine GM thermostat. You can buy one online directly from your OEM via our auto parts counter. So, enjoy peace of mind down the road -- order now.

Thermostat
Part Number: 96055553
Other Names: F (S)Thermostat More Names
Description: All models. 82 degrees. More Info
MSRP $22.26
$14.59
MSRP $22.26
$14.59
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: 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: 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: 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: 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: 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
$72.22
MSRP $125.60
$72.22
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: 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 $116.32
$66.88
MSRP $116.32
$66.88
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 $34.14
$19.63
MSRP $34.14
$19.63
Engine Coolant Thermostat
Part Number: 10112301
Other Names: Thermostat More Names
Description: All models. All. 2.2l. More Info
MSRP $14.90
$8.57
MSRP $14.90
$8.57
Engine Coolant Thermostat
Part Number: 10192505
Other Names: Thermostat More Names
Description: All. 2.0l. All models. 2.5l. More Info
MSRP $17.42
$10.02
MSRP $17.42
$10.02
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
$49.00
MSRP $85.23
$49.00
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
$7.68
MSRP $13.35
$7.68
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: Included with Water pump assembly. More Notes
MSRP $58.69
$33.74
MSRP $58.69
$33.74
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 $20.74
$11.93
MSRP $20.74
$11.93
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
$57.71
MSRP $88.03
$57.71
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
$10.47
MSRP $18.20
$10.47
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
$28.20
MSRP $49.04
$28.20
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
$21.55
MSRP $37.49
$21.55
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
$13.32
MSRP $23.16
$13.32
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
$21.15
MSRP $36.80
$21.15
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 $33.60
$19.32
MSRP $33.60
$19.32
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
$20.55
MSRP $35.74
$20.55
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
$7.04
MSRP $12.24
$7.04
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
$9.65
MSRP $16.78
$9.65
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: 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
$10.40
MSRP $18.09
$10.40
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: 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
$39.33
MSRP $68.40
$39.33
Engine Coolant Thermostat
Part Number: 12559336
Other Names: Thermostat More Names
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
$25.17
MSRP $43.78
$25.17
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
$40.37
MSRP $70.21
$40.37
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
$44.76
MSRP $77.83
$44.76
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
$33.61
MSRP $58.47
$33.61
Engine Coolant Thermostat
Part Number: 24420653
Other Names: Engine Coolant Thermostat More Names
Description: 3.0L. CTS. 3.2l. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal... More Info
Notes: Included with thermostat housing. More Notes
MSRP $28.56
$16.42
MSRP $28.56
$16.42
Engine Coolant Thermostat
Part Number: 24506986
Other Names: Engine Coolant Thermostat More Names
Description: Low Temperature. Vendor:acdelco. Vendor #131-30. 4.3L. Riviera. Standard. Vendor #131-54. 3.8L. Park Avenue. Controls the flow of... More Info
MSRP $17.01
$9.79
MSRP $17.01
$9.79
Engine Coolant Thermostat
Part Number: 10045126
Other Names: Thermostat More Names
Description: All models. Chevrolet. 4 cylinder. Beretta, Corsica. 2.0l. Beretta, Corsica. 2.2l. Buick, oldsmobile. With hi-output. More Info
MSRP $17.14
$15.43
MSRP $17.14
$15.43
Engine Coolant Thermostat
Part Number: 10207373
Other Names: Engine Coolant Thermostat More Names
Description: Controls the flow of coolant through the radiator to help your vehicle's engine reach and maintain its optimal operating temperature\... More Info
MSRP $17.92
$10.30
MSRP $17.92
$10.30
Engine Coolant Thermostat
Part Number: 10207381
Other Names: Engine Coolant Thermostat More Names
Description: All models. 3.8l, 4.3l diesel. 6 cylinder. 180 degrees. Controls the flow of coolant through your vehicle's radiator to help the engine... More Info
MSRP $15.79
$9.07
MSRP $15.79
$9.07
Engine Coolant Thermostat
Part Number: 55493557
Other Names: Thermostat Housing More Names
Replaces: 55491364
Description: 1.8L. Malibu. Controls the flow of coolant through your vehicle's radiator to help it reach and maintain optimal operating temperature\... More Info
Notes: Included with Water pump assembly. More Notes
MSRP $119.69
$78.45
MSRP $119.69
$78.45
Engine Coolant Thermostat
Part Number: 97241130
Options: Rear
Other Names: Thermostat More Names
Description: Silverado, sierra. 6.6l. 180 degrees. All models. 6.6l. 6.6L, rear. Express, savana. 6.6l diesel. 180 degree. Silverado, Sierra 2500 HD.... More Info
MSRP $59.78
$34.37
MSRP $59.78
$34.37
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
$20.29
MSRP $35.29
$20.29

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