GM Thermostats

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The thermostat in your vehicle is a vital part of your engine's cooling system. The purpose of the thermostat in your car is to block the flow of coolant to the radiator until your engine is warmed up. When your engine is warmed up the thermostat opens. You can tell by watching the gauges in your car when your engine has reached the correct temperature.  If your gauge goes red within the first 15 minutes your thermostat may be bad and need replacing.If the thermostat is not working properly in your vehicle, it may end up causing engine damage to do erratic coolant temperatures. If you notice your temperature gauge jumping around or see a coolant leak underneath your vehicle, you may have a bad thermostat. You do not want your engine to overheat and leave you stranded on the side of the road, waiting on a tow truck. Shop our webstore here at National GM Parts for genuine OEM thermostats for your GM vehicle. We have replacement thermostats, housings, gaskets, and seals in stock. Be sure to choose your specific GM vehicle to ensure that you have the correct thermostat for your specific vehicle. Find the thermostat you need for your specific GM vehicle below.

Thermostat
Part Number: 96055553
Other Names: F (S)Thermostat More Names
Description: All models. 82 degrees. More Info
MSRP $22.26
$13.96
MSRP $22.26
$13.96
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
$69.08
MSRP $125.60
$69.08
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
Replaces: 12615097, 21018811, 55350941, 90537453
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
$65.59
MSRP $119.26
$65.59
Engine Coolant Thermostat
Part Number: 12632948
Other Names: Engine Coolant Thermostat More Names
Replaces: 12257859, 12557859, 12563335, 12597583
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
$21.46
MSRP $39.02
$21.46
Engine Coolant Thermostat
Part Number: 10112301
Other Names: Thermostat More Names
Description: All models. All. 2.2l. More Info
MSRP $14.90
$8.20
MSRP $14.90
$8.20
Engine Coolant Thermostat
Part Number: 10192505
Other Names: Thermostat More Names
Description: All. 2.0l. All models. 2.5l. More Info
MSRP $17.42
$9.58
MSRP $17.42
$9.58
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: 96988257, 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
$46.87
MSRP $85.23
$46.87
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
$7.35
MSRP $13.35
$7.35
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
$32.27
MSRP $58.69
$32.27
Engine Coolant Thermostat
Part Number: 24577299
Other Names: Engine Coolant Thermostat More Names
Replaces: 24576634, 24577130
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
$11.98
MSRP $21.78
$11.98
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
$55.20
MSRP $88.03
$55.20
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
$10.01
MSRP $18.20
$10.01
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
$26.97
MSRP $49.04
$26.97
Engine Coolant Thermostat
Part Number: 12559337
Other Names: Engine Coolant Thermostat More Names
Replaces: 12551497
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
$20.61
MSRP $37.49
$20.61
Engine Coolant Thermostat
Part Number: 12559575
Other Names: Engine Coolant Thermostat More Names
Replaces: 12559269, 12559573
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
$12.74
MSRP $23.16
$12.74
Engine Coolant Thermostat
Part Number: 12600171
Other Names: Engine Coolant Thermostat More Names
Replaces: 12581595
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
$20.23
MSRP $36.80
$20.23
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
$21.48
MSRP $39.06
$21.48
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
$19.66
MSRP $35.74
$19.66
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
$6.73
MSRP $12.24
$6.73
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
$9.23
MSRP $16.78
$9.23
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
$9.94
MSRP $18.09
$9.94
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
$37.62
MSRP $68.40
$37.62
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
$24.08
MSRP $43.78
$24.08
Engine Coolant Thermostat
Part Number: 12559807
Other Names: Thermostat More Names
Replaces: 12554784, 12555811
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
$38.61
MSRP $70.21
$38.61
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
$42.81
MSRP $77.83
$42.81
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
$32.15
MSRP $58.47
$32.15
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
$15.71
MSRP $28.56
$15.71
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
$9.36
MSRP $17.01
$9.36
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
$9.86
MSRP $17.92
$9.86
Engine Coolant Thermostat
Part Number: 10207381
Other Names: Engine Coolant Thermostat More Names
Replaces: 3054228
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
$8.68
MSRP $15.79
$8.68
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
$75.04
MSRP $119.69
$75.04
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
$32.88
MSRP $59.78
$32.88
Engine Coolant Thermostat
Part Number: 24507563
Other Names: Engine Coolant Thermostat More Names
Replaces: 10226109
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
$19.40
MSRP $35.29
$19.40

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