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OEM GM Thermostats

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What Thermostats Do For Your Vehicle

At Chevrolet Parts Direct, we know how crucial thermostats are for maintaining your engine’s health. A thermostat regulates the coolant flow between your engine and radiator, ensuring the engine stays within its ideal operating temperature. This balance prevents overheating during intense use and overcooling during colder weather. Your vehicle could face engine inefficiency or costly damage without a properly functioning thermostat.

Other Functions Of Thermostats

Thermostats not only manage engine temperatures but also support better fuel efficiency and reduce emissions by allowing your engine to warm up quickly. Genuine GM thermostats are engineered specifically for models like the Buick Encore and Chevrolet Equinox, delivering precise temperature control for smooth operation. Unlike lower-cost, generic aftermarket parts, GM thermostats are designed to last longer and integrate seamlessly with other components. Pairing your thermostat with genuine water pumps ensures your cooling system performs reliably over time.

When To Replace A Thermostat

Signs that your thermostat may need replacing include fluctuating temperature gauge readings, an engine that overheats or doesn’t warm up, and unusual noises from the cooling system. If you experience any of these issues, replacing your thermostat promptly can prevent further complications. Genuine GM thermostats provide unmatched reliability and are tailored to fit your vehicle perfectly, unlike generic options that may fail prematurely. Inspect your thermostat regularly to maintain consistent engine performance and peace of mind.

Chevrolet Parts Direct is here to provide dependable solutions for your vehicle repair needs.

Engine Coolant Thermostat

Part Number: 55503988
GM GM
Notes: Includes Housing. Included with Water pump assembly.
Applications: 1.2L.
Other Names: Thermostat, 11793
Description: 1.2L. Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature
Fits:
  • Buick:
    • Encore GX,
    • Envista
  • Chevrolet:
    • Trailblazer,
    • Trax
Backordered

Thermostat Bypass Pipe

Part Number: 97371074
GM GM
Other Names: Engine Coolant Bypass Pipe
Replaces: 97229222, 97327853
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment...
Fits:
  • Chevrolet:
    • Silverado 2500 HD,
    • Silverado 3500
  • GMC:
    • Sierra 2500 HD,
    • Sierra 3500
Backordered

Engine Coolant Thermostat

Part Number: 12559336
GM GM
Applications: 8 CYLINDER. 5.0L, 5.7L, 6.2L, 6.5L, 7.4L, 8.1L.
Other Names: Thermostat, 778
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...
Fits:
  • Chevrolet:
    • C1500,
    • C2500,
    • C3500,
    • C3500HD,
    • Express 2500,
    • Express 3500,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • P30,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Tahoe
  • GMC:
    • C1500 Pickup,
    • C2500 Pickup,
    • C3500 Pickup,
    • C3500HD,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • Savana 2500,
    • Savana 3500,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Yukon
MSRP $66.22
$39.73

Engine Coolant Thermostat

Part Number: 12559807
GM GM
Notes: Included with thermostat housing.
Applications: 4.6L. 2 FAN SYSTEM. 3 FAN SYSTEM.
Other Names: Thermostat, 782
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
Fits:
  • Buick:
    • Lucerne
  • Cadillac:
    • Allante,
    • DeVille,
    • DTS,
    • Eldorado,
    • Seville,
    • SRX,
    • STS,
    • XLR
  • Oldsmobile:
    • Aurora
  • Pontiac:
    • Bonneville
MSRP $94.12
$56.47

Engine Coolant Thermostat

Part Number: 96143939
GM GM
Other Names: Thermostat, 16094
Description: Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature
MSRP $22.06
$13.79

F (S)Thermostat

Part Number: 10202456
GM GM
MSRP $84.53
$57.78

Water Valve

Part Number: 12731953
GM GM
Applications: 2.5L.
Other Names: Control Valve, Water Manifold, Valve
Description: Engine coolant. Traverse. Acadia.
Fits:
  • Buick:
    • Enclave
  • Chevrolet:
    • Traverse
  • GMC:
    • Acadia
MSRP $296.60
$194.47

F (S)Thermostat

Part Number: 23503826
GM GM
MSRP $82.52
$49.51

Thermostat Bypass Hose

Part Number: 55497097
GM GM
Other Names: F (S)Hose
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $67.88
$40.73

F (S)Pipe

Part Number: 12711707
GM GM
Applications: 2.7L.
Replaces: 12691177
Description: 2.7L turbo. CT4. Bypass to water pump.
Fits:
  • Cadillac:
    • CT4
MSRP $81.38
$48.83

Thermostat Bypass Hose

Part Number: 12667454
GM GM
Applications: 2.7L.
Other Names: Engine Coolant Bypass Hose
Description: To Thermostat. CT4. At flow control valve. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed...
Fits:
  • Cadillac:
    • CT4
  • Chevrolet:
    • Silverado 1500,
    • Silverado 1500 LTD
  • GMC:
    • Sierra 1500,
    • Sierra 1500 Limited
MSRP $40.04
$24.02

Engine Coolant Thermostat

Part Number: 10190925
GM GM
Applications: 2.8L, 4.3L. 8 CYLINDER. 6 CYLINDER. 5.0L, 5.7L, 6.2L, 6.5L, 7.4L, 8.1L.
Other Names: Engine Coolant Thermostat, 184
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...
Fits:
  • Chevrolet:
    • Astro,
    • Blazer,
    • C1500,
    • C2500,
    • C3500,
    • C3500HD,
    • Camaro,
    • G10,
    • G20,
    • G30,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • P30,
    • S10,
    • S10 Blazer,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Tahoe
  • GMC:
    • C1500 Pickup,
    • C2500 Pickup,
    • C3500 Pickup,
    • C3500HD,
    • G1500,
    • G2500,
    • G3500,
    • Jimmy,
    • Jimmy S15,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • P3500,
    • Safari,
    • Savana 1500,
    • Sonoma,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Syclone,
    • Typhoon,
    • Yukon
  • Oldsmobile:
    • Bravada
  • Pontiac:
    • Firebird
MSRP $27.42
$17.14

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