Factory GM Thermostats

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Thermostats were designed to help prevent your engine from overheating-- but how do they work? A spring opens and closes the thermostat, which lets coolant circulate between the engine and the radiator. Your coolant will move in the right temperature range, no matter how hot or cold the weather is.

Although thermostat failure is rare, the easiest way to tell if you need to change it is by looking at the temperature gauge. If the needle is in the center or in the cold range lightly, it's in good working condition. If, for some reason, your thermostat is not working properly, you can check for the warning signs. They include a lit Check Engine light, valve operation issues, engine problems, or AC or heating system malfunctions. If you come across any of these issues, it's best to perform a vehicle inspection.

Order a new GM Thermostat Today | Buy Now & Save

If you need to purchase a new thermostat for your GM model, we hope you'll think of our auto parts counter. Of course, you will want to replace it with a genuine OEM thermostat because they're crafted for your make and model. Place an order today to get started!

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
$7.88
MSRP $13.35
$7.88
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
$32.57
MSRP $58.69
$32.57
180 Degrees Engine Coolant Thermostat
Part Number: 19316307
Other Names: Thermostat More Names
Description: City Express. Inlet. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal... More Info
MSRP $31.98
$18.07
MSRP $31.98
$18.07
Passenger Side Engine Coolant Thermostat
Part Number: 84660340
Other Names: Thermostat More Names
Description: With auxiliary radiator. With powertrain cooling. Corvette. Oil cooler inlet. Controls the flow of coolant through your vehicle's... More Info
Notes: Included with #3 inlet hose. More Notes
MSRP $95.88
$53.21
MSRP $95.88
$53.21
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
$39.99
MSRP $72.06
$39.99
Thermostat
Part Number: 96055553
Other Names: F (S)Thermostat More Names
Description: All models. 82 degrees. More Info
MSRP $22.26
$14.34
MSRP $22.26
$14.34
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
$18.98
MSRP $33.60
$18.98
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
$32.45
MSRP $58.47
$32.45
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
$77.32
MSRP $141.88
$77.32
217 Degrees Engine Coolant Thermostat with Water Inlet
Part Number: 25200455
Other Names: Thermostat Unit More Names
Replaces: 55593034
Description: Without high output. Encore. Sonic. 1.4L turbo. Cruze, Cruze Limited. Trax. This GM Genuine part is designed, engineered and tested to... More Info
Notes: Included with water pump. Includes Gasket And Housing. More Notes
MSRP $105.84
$57.68
MSRP $105.84
$57.68
Engine Coolant Water Outlet
Part Number: 12556593
Other Names: Thermostat Housing More Names
Description: 6 cylinder, with high output. Astro, Safari. Cpi, mpi. 4.3L. All models. Express, savana. 2003-14. This GM Genuine Part is designed,... More Info
MSRP $28.28
$15.98
MSRP $28.28
$15.98
Engine Coolant Water Inlet
Part Number: 12591884
Other Names: Thermostat Housing More Names
Description: Includes thermostat. 3.5L, 2007-08. Malibu. 3.5l. Malibu, Malibu Maxx. 3.9l. G6. 3.9l. 3.9L, 2007-09. Aura. 3.5l. Vue. This GM Genuine... More Info
Notes: Included with thermostat. Includes Thermostat And Gasket. More Notes
MSRP $82.83
$55.17
MSRP $82.83
$55.17
Engine Coolant Outlet Pipe
Part Number: 12645997
Options: Upper
Other Names: Thermostat Cover More Names
Description: 6.6L. Repairs leaking thermostat housings More Info
MSRP $106.18
$57.87
MSRP $106.18
$57.87
Engine Coolant Thermostat O-Ring
Part Number: 03522676
Options: Lower Upper
Other Names: Thermostat Seal More Names
Description: Seals your vehicle's thermostat housing\ Helps prevent coolant from leaking from the engine\ This GM Genuine Part is designed,... More Info
Notes: Included with reservoir tank. Included with thermostat housing. More Notes
MSRP $8.79
$5.19
MSRP $8.79
$5.19
Engine Coolant Water Outlet
Part Number: 14087075
Other Names: Thermostat Housing More Names
Description: Chevrolet. 8 cylinder. Without hi-output. Federal. Caballero, El Camino. 5.0l. Pontiac. Chervolet. V8. Gas engine. Carb engine. This GM... More Info
MSRP $24.48
$13.83
MSRP $24.48
$13.83
Engine Coolant Thermostat Housing
Part Number: 96407677
Other Names: Thermostat Housing More Names
Description: Aveo, Aveo5. 2007-08. Repairs leaking thermostat housings More Info
Notes: Includes Thermostat. More Notes
MSRP $125.54
$68.42
MSRP $125.54
$68.42
Engine Coolant Outlet Pipe
Part Number: 98099903
Other Names: Thermostat Housing More Names
Description: Outlet. 6.6L. More Info
MSRP $178.31
$110.79
MSRP $178.31
$110.79
Engine Coolant Water Outlet
Part Number: 10147884
Other Names: Thermostat Housing More Names
Description: All models. 5.0l, 5.7l. Exc.Armored Body Equipment. Thick base helps prevent leaks by minimizing warpage\ Leak-resistant Neoprene O-ring... More Info
MSRP $38.60
$21.81
MSRP $38.60
$21.81
Engine Coolant Water Outlet
Part Number: 10226490
Other Names: Thermostat Housing More Names
Description: Express, savana. 7.4l. Thick base helps prevent leaks by minimizing warpage\ Leak-resistant Neoprene O-ring seal\ Helps your cooling... More Info
MSRP $37.26
$21.05
MSRP $37.26
$21.05
Engine Coolant Thermostat and Housing Assembly
Part Number: 12678784
Options: Lower
Other Names: Thermostat Housing More Names
Replaces: 12670209, 12673280
Description: Repairs leaking thermostat housings More Info
Notes: Includes Thermostat And Gaskets. Includes Thermostat, Thermostat Gskt And Housing Gskt. More Notes
MSRP $104.68
$57.05
MSRP $104.68
$57.05
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
$47.30
MSRP $85.23
$47.30
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
Engine Coolant Thermostat Housing
Part Number: 12511714
Options: Lower
Other Names: Thermostat Housing More Names
Description: S-series. Astro, Safari. Repairs leaking thermostat housings More Info
MSRP $70.38
$39.06
MSRP $70.38
$39.06
Engine Coolant Thermostat with Water Inlet
Part Number: 55492938
Other Names: Thermostat Unit More Names
Description: Cascada. Helps retain the thermostat to monitor the flow of coolant through your vehicle's engine and radiator\ Manufactured to GM... More Info
Notes: Included with oil cooler assembly. More Notes
MSRP $93.51
$51.90
MSRP $93.51
$51.90
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
Engine Coolant Thermostat Water Inlet Assembly
Part Number: 10108667
Other Names: Thermostat Housing More Names
Description: All models. 5.7L. Cadillac. 8 cylinder, 1993-97. Without zr1. Buick, chevrolet, olds. 4.3l. V-8. Provides a durable leak-resistant... More Info
MSRP $38.64
$21.83
MSRP $38.64
$21.83
Engine Coolant Water Outlet
Part Number: 10112356
Options: Upper
Other Names: Thermostat Housing More Names
Description: S-series. All models. Outlet. All. 4 cylinder. Chevrolet. Cavalier, Sunfire. 2.2l. 2.2L, without dohc. This GM Genuine Part is designed,... More Info
MSRP $42.76
$24.16
MSRP $42.76
$24.16
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: 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
Engine Coolant Water Outlet
Part Number: 12557563
Other Names: Thermostat Housing More Names
Description: All models. 4.3l. Silverado, sierra. 4.3l. Thick base helps prevent leaks by minimizing warpage\ Leak-resistant Neoprene O-ring seal\... More Info
MSRP $105.98
$57.76
MSRP $105.98
$57.76
Engine Coolant Thermostat Water Inlet Assembly
Part Number: 12571261
Other Names: Thermostat Housing More Names
Description: Includes thermostat. All models. Corvette. 8 cylinder, 1998-02. 5.7L. S-series. 5.3L. Incl.Gasket,Housing and Thermostat. Hummer H2.... More Info
Notes: Includes Thermostat. Included with water pump. More Notes
MSRP $71.35
$39.60
MSRP $71.35
$39.60
Engine Coolant Thermostat Gasket
Part Number: 12590871
Other Names: Thermostat Gasket More Names
Description: STS-v. XLR. 4.4l. Seals your vehicle's thermostat housing\ Helps prevent coolant from leaking from the engine\ This GM Genuine Part is... More Info
MSRP $24.10
$13.62
MSRP $24.10
$13.62
Engine Coolant Thermostat Housing
Part Number: 12605853
Options: Lower
Other Names: Thermostat Housing More Names
Description: 2011-2013. Regal. 2nd Design. Outlet Pipe Parallel to Inlet Pipe. Solstice. 2.0l. Houses the thermostat and allows connection between... More Info
MSRP $177.70
$96.85
MSRP $177.70
$96.85
Engine Coolant Thermostat and Housing Assembly
Part Number: 12650241
Other Names: Thermostat Housing More Names
Description: Canyon, Colorado. Malibu. 2.5l. LaCrosse. 2.0L turbo. Sedan, 2.5L. Repairs leaking thermostat housings\ Corrects engine overheating... More Info
Notes: Includes Thermostat, Housing And Gasket. Included with water pump assembly. Part requires torque-to-yield bolts that cannot reused/... More Notes
MSRP $120.00
$65.40
MSRP $120.00
$65.40
Engine Coolant Thermostat and Housing Assembly
Part Number: 12689041
Other Names: Thermostat Housing More Names
Replaces: 12638893
Description: Enclave, Traverse. Outlook. Acadia Limited. Repairs leaking thermostat housings More Info
Notes: Includes Thermostat. More Notes
MSRP $105.24
$57.36
MSRP $105.24
$57.36
Engine Coolant Thermostat and Housing Assembly
Part Number: 12694088
Other Names: Thermostat Housing More Names
Description: Volt. Repairs leaking thermostat housings More Info
Notes: Included with Water pump assembly. Includes Water Inlet And Thermostat Gasket. More Notes
MSRP $97.36
$54.03
MSRP $97.36
$54.03
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

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