Chevrolet Silverado 1500 Classic Thermostat

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We stock Genuine OEM Chevrolet Thermostat for your Chevrolet Silverado 1500 Classic. OEM thermostats are designed and manufactured to fit and function perfectly with your specific make and model of vehicle. They are designed to regulate the flow of coolant through your engine, ensuring that your engine operates at the correct temperature range. A malfunctioning thermostat can cause overheating, poor fuel efficiency, and potential engine damage, so replacing it with an OEM part can ensure optimal performance and reliability. Additionally, using an OEM thermostat can help ensure that the part is covered under the manufacturer's warranty. Manufacturer's Warranty Included. Guaranteed Fit. Experts standing by.

Engine Coolant Thermostat

Part Number: 12632948
GM GM
Applications: 2.8L, 4.3L. 8 CYLINDER. 6 CYLINDER 2003-2014. 5.0L, 5.7L, 6.2L, 6.5L, 7.4L, 8.1L.
Other Names: Engine Coolant Thermostat, 1179
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....
Fits:
  • Cadillac:
    • Escalade
  • Chevrolet:
    • Astro,
    • Blazer,
    • C1500,
    • C2500,
    • C3500,
    • C3500HD,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • P30,
    • S10,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Tahoe
  • GMC:
    • C1500 Pickup,
    • C2500 Pickup,
    • C3500 Pickup,
    • C3500HD,
    • Jimmy,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • P3500,
    • Safari,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sonoma,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Yukon
  • Oldsmobile:
    • Bravada
MSRP $56.02
$32.21

1990-2013 GM - Engine Coolant Thermostat O-Ring

Part Number: 12551507
GM GM
Notes: Seal included with thermostat.
Applications: 5.7L.
Other Names: Engine Coolant Thermostat Gasket
Replaces: 12553106
Description: O-Ring. 6 cylinder, with high output. 4.3L. 2nd Design. Dual Thermostat. Diesel. 2003-14. All models. 8 cylinder, 1993-97. 1/2, 3/4 & 1...
Fits:
  • Buick:
    • Roadmaster
  • Cadillac:
    • Escalade,
    • Fleetwood
  • Chevrolet:
    • Astro,
    • Blazer,
    • C1500,
    • C2500,
    • C3500,
    • C3500HD,
    • Camaro,
    • Caprice,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • G10,
    • G20,
    • G30,
    • Impala,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • P30,
    • S10,
    • S10 Blazer,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Tahoe
  • GMC:
    • C1500 Pickup,
    • C2500 Pickup,
    • C3500 Pickup,
    • C3500HD,
    • G1500,
    • G2500,
    • G3500,
    • Jimmy,
    • K1500 Pickup,
    • K2500 Pickup,
    • K3500 Pickup,
    • P3500,
    • Safari,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sonoma,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500,
    • Yukon
  • Oldsmobile:
    • Bravada
  • Pontiac:
    • Firebird
MSRP $11.52
$7.37

2007-2025 GM - 187 Degrees Engine Coolant Thermostat with Seal

Part Number: 89018168
GM GM
Notes: Includes Water Inlet Seal. Included with thermostat housing. Included with water pump assembly. Includes Coolant Temperature Sensor....
Applications: 5.3L. 4.3L. 6.6L GAS. 6.0L, 6.2L. 8 CYLINDER. 6 CYLINDER 2018-2019. 6.2L W/O SUPERCHARGER.
Other Names: Engine Coolant Thermostat, 15231
Replaces: 12587396, 89017851
Description: Controls the flow of coolant through your vehicle's radiator to help the engine reach and maintain its optimal operating temperature
Fits:
  • Buick:
    • Rainier
  • Cadillac:
    • CTS,
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche,
    • Camaro,
    • Caprice,
    • Colorado,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Express 4500,
    • LCF 3500,
    • LCF 3500HG,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 1500 HD Classic,
    • Silverado 1500 LTD,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500 Classic,
    • Silverado 3500 HD,
    • SS,
    • Suburban,
    • Suburban 1500,
    • Suburban 2500,
    • Suburban 3500 HD,
    • Tahoe,
    • Trailblazer
  • GMC:
    • Canyon,
    • Envoy,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Savana 4500,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 1500 HD Classic,
    • Sierra 1500 Limited,
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500 Classic,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2,
    • H3,
    • H3T
  • Pontiac:
    • G8
MSRP $72.25
$41.56

1999-2009 GM - Engine Coolant Thermostat Water Inlet Assembly

Part Number: 12600172
GM GM
Notes: Includes Thermostat & Gasket. Includes Thermostat And Seal. Included with thermostat unit. Included with Water pump assembly.
Applications: 5.3L. 5.7L. 6.0L, 6.2L. 8 CYLINDER.
Other Names: Engine Coolant Thermostat Kit, 1048
Replaces: 12568911, 12581594
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts...
Fits:
  • Buick:
    • Rainier
  • Cadillac:
    • CTS,
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche 1500,
    • Avalanche 2500,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 1500 HD,
    • Silverado 1500 HD Classic,
    • Silverado 2500,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500,
    • Silverado 3500 Classic,
    • Silverado 3500 HD,
    • SSR,
    • Suburban 1500,
    • Suburban 2500,
    • Tahoe,
    • Trailblazer,
    • Trailblazer EXT
  • GMC:
    • Envoy,
    • Envoy XL,
    • Envoy XUV,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 1500 HD,
    • Sierra 1500 HD Classic,
    • Sierra 2500,
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500,
    • Sierra 3500 Classic,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2
  • Pontiac:
    • G8,
    • GTO
MSRP $78.67
$45.23

2007-2025 GM - Water Inlet Seal

Part Number: 12587397
GM GM
Notes: Included with thermostat housing. Included with water pump assembly. Included with water pump. Part cannot be reused/reinstalled.
Applications: 5.3L. 4.3L. 6.0L. 4.2L. 5.5L. 7.0L. 6.6L GAS. 8 CYLINDER. 6.2L W/O SUPERCHARGER.
Other Names: Thermostat Seal
Description: Helps close and prevent coolant from leaking out of your vehicle's cooling system components to maintain the proper engine temperature...
Fits:
  • Buick:
    • Rainier
  • Cadillac:
    • CT6,
    • CTS,
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche,
    • Camaro,
    • Caprice,
    • Colorado,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Express 4500,
    • LCF 3500,
    • LCF 3500HG,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 1500 HD Classic,
    • Silverado 1500 LTD,
    • Silverado 2500 HD,
    • Silverado 2500 HD Classic,
    • Silverado 3500 Classic,
    • Silverado 3500 HD,
    • SS,
    • Suburban,
    • Suburban 1500,
    • Suburban 2500,
    • Suburban 3500 HD,
    • Tahoe,
    • Trailblazer
  • GMC:
    • Canyon,
    • Envoy,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Savana 4500,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 1500 HD Classic,
    • Sierra 1500 Limited,
    • Sierra 2500 HD,
    • Sierra 2500 HD Classic,
    • Sierra 3500 Classic,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2,
    • H3,
    • H3T
MSRP $10.84
$6.94

1996-2013 GM - Engine Coolant Water Outlet

Part Number: 12557563
GM GM
Applications: 2.8L, 4.3L.
Other Names: Thermostat Housing, 773
Replaces: 10244764, 12594929
Description: All models. 4.3l. Silverado, sierra. 4.3l. Thick base helps prevent leaks by minimizing warpage Leak-resistant Neoprene O-ring seal...
Fits:
  • Chevrolet:
    • Blazer,
    • S10,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500
  • GMC:
    • Jimmy,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sonoma,
    • Suburban C1500,
    • Suburban C2500,
    • Suburban K1500,
    • Suburban K2500
  • Oldsmobile:
    • Bravada
MSRP $122.18
$67.81

2007-2025 GM - Engine Water Pump Inlet Tube

Part Number: 12587395
GM GM
Notes: Includes Thermostat. Included with water manifold. Included with water pump assembly.
Applications: 5.3L. 4.3L. 6.0L. 6.6L GAS. 8 CYLINDER. 6 CYLINDER 2018-2019. 6.2L W/O SUPERCHARGER.
Other Names: Engine Coolant Thermostat Housing, 949
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors Original equipment parts...
Fits:
  • Buick:
    • Rainier
  • Cadillac:
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche,
    • Colorado,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Express 4500,
    • LCF 3500,
    • LCF 3500HG,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 1500 LTD,
    • Silverado 2500 HD,
    • Silverado 3500 HD,
    • Suburban,
    • Suburban 1500,
    • Suburban 2500,
    • Suburban 3500 HD,
    • Tahoe,
    • Trailblazer
  • GMC:
    • Canyon,
    • Envoy,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Savana 4500,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 1500 Limited,
    • Sierra 2500 HD,
    • Sierra 3500 HD,
    • Yukon,
    • Yukon XL,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2,
    • H3,
    • H3T
MSRP $17.94
$11.48

2000-2009 GM - Engine Coolant Water Inlet Seal

Part Number: 12570307
GM GM
Notes: Included with water inlet. Included with inlet assembly. Included with thermostat housing. Included with Water pump assembly.
Applications: 5.7L. 6.0L, 6.2L. 3.5L, 3.9L, 5.3L.
Other Names: Engine Coolant Thermostat Gasket, 845
Description: Helps close and prevent coolant from leaking out of your vehicle's cooling system components to maintain the proper engine temperature...
Fits:
  • Buick:
    • LaCrosse,
    • Rainier
  • Cadillac:
    • CTS,
    • Escalade,
    • Escalade ESV,
    • Escalade EXT
  • Chevrolet:
    • Avalanche 1500,
    • Avalanche 2500,
    • Corvette,
    • Express 1500,
    • Express 2500,
    • Express 3500,
    • Impala,
    • Monte Carlo,
    • Silverado 1500,
    • Silverado 1500 Classic,
    • Silverado 1500 HD,
    • Silverado 2500,
    • Silverado 2500 HD,
    • Silverado 3500,
    • SSR,
    • Suburban 1500,
    • Suburban 2500,
    • Tahoe,
    • Trailblazer,
    • Trailblazer EXT
  • GMC:
    • Envoy,
    • Envoy XL,
    • Envoy XUV,
    • Savana 1500,
    • Savana 2500,
    • Savana 3500,
    • Sierra 1500,
    • Sierra 1500 Classic,
    • Sierra 1500 HD,
    • Sierra 2500,
    • Sierra 2500 HD,
    • Sierra 3500,
    • Yukon,
    • Yukon XL 1500,
    • Yukon XL 2500
  • Hummer:
    • H2
  • Pontiac:
    • G8,
    • Grand Prix,
    • GTO
MSRP $7.94
$5.16

2016-2022 GM - Engine Coolant Thermostat Housing Gasket

Part Number: 12650486
GM GM
Notes: Included with thermostat housing.
Applications: 2.8L Diesel.
Other Names: Engine Coolant Thermostat Housing Seal
Description: 2.8L turbo diesel. Express, savana. Canyon, Colorado. This GM Genuine Part is designed, engineered, and tested to rigorous standards and...
Fits:
  • Chevrolet:
    • Colorado,
    • Express 2500,
    • Express 3500
  • GMC:
    • Canyon,
    • Savana 2500,
    • Savana 3500
MSRP $27.63
$17.26

2014-2024 GM - Engine Coolant Thermostat

Part Number: 12661950
GM GM
Notes: Included with water manifold. Included with Water pump assembly.
Applications: 4.2L. 5.5L. 7.0L. 6.2L W/SUPERCHARGER.
Other Names: Thermostat, 1229
Description: CT6. 4.2L twin-turbo. Camaro. 7.0L. Corvette. Coolant manifold inlet. Controls the flow of coolant through your vehicle's radiator to...
Fits:
  • Cadillac:
    • CT6,
    • Escalade,
    • Escalade ESV
  • Chevrolet:
    • Camaro,
    • Corvette
MSRP $64.35
$37.00

2022-2025 GM - A/C Evaporator Temperature Sensor

Part Number: 85146482
GM GM
Notes: Included with AC & heater case.
Other Names: Temp Sensor, Thermostatic Switch, A/C Evaporator Temperature Sensor, F (S)Sensor
Description: Blazer EV. LYRIQ. Equinox EV. Silverado EV. Hummer EV Pickup. Hummer EV SUV. Evaporator. Sierra EV.
Fits:
  • Cadillac:
    • ESCALADE IQ,
    • LYRIQ
  • Chevrolet:
    • Blazer EV,
    • Equinox EV,
    • Silverado EV
  • GMC:
    • Hummer EV Pickup,
    • Hummer EV SUV,
    • Sierra EV
MSRP $95.06
$54.66

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