Save Up to 15% on Back to School Auto Parts
24/7 Customer service
USD
Add your vehicle
Address
Login
Cart
Item
$0.00
A-Premium Back to School Car Deals Up to 15% OFFA-Premium Back to School Car Deals Up to 15% OFF
Add your vehicle to ensure fitment/Choose a yearRequired Fields
Select a different vehicle
Make/Model
VIN
Save

Pontiac Firebird Thermostat

10 items

Upgrade your vehicle's thermostat with A-Premium's high-quality options. Choose reliability and durability for a smoother ride.

  • All filters
  • Sort By
  • Year
  • Price
  • Placement on Vehicle
  • Brand
  • Material
  • Color
  • Warranty
Thermostat Housing Assembly for Cadillac Escalade Chevrolet Silverado 1500 GMCThermostat Housing Assembly for Cadillac Escalade Chevrolet Silverado 1500 GMC
A-Premium®Part # APTHA0128
Thermostat Housing Assembly for Cadillac Escalade Chevrolet Silverado 1500 GMC
4.685 Reviews
$22.99
Low stock: Only 5 left
Edit ZIP code
2-year warranty
90 days free return
Fits 2002 - 2003 Cadillac Escalade, 2002 - 2003 Cadillac Escalade, 2003 - 2003 Cadillac Escalade ESV, 2002 - 2003 Cadillac Escalade EXT, 2002 - 2003 Chevrolet Avalanche 1500, 1998 - 2002 Chevrolet Camaro, 1997 - 2003 Chevrolet Corvette, 2003 - 2003 Chevrolet Express 1500, 2003 - 2003 Chevrolet Express 2500, 2003 - 2003 Chevrolet Express 2500, 2003 - 2003 Chevrolet Express 2500, 2003 - 2003 Chevrolet Express 3500, 2003 - 2003 Chevrolet Express 3500, 2003 - 2003 Chevrolet Express 3500, 1999 - 2003 Chevrolet Silverado 1500, 1999 - 2003 Chevrolet Silverado 1500, 2003 - 2003 Chevrolet Silverado 1500, 2001 - 2003 Chevrolet Silverado 1500 HD, 1999 - 2002 Chevrolet Silverado 2500, 1999 - 2003 Chevrolet Silverado 2500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Pontiac Firebird
Item LocatedUnited States
Quantity1
MaterialAluminum
Part interchange
902-2700, 379180, 12571261, 8125712610
item #10027T01
Show less
A-Premium APTHE004 Engine Coolant Thermostat
A-Premium®Part # APTHE004
A-Premium APTHE004 Engine Coolant Thermostat
4.685 Reviews
$31.99
Edit ZIP code
2-year warranty
90 days free return
Fits 1980 - 1982 AMC Concord, 1981 - 1983 AMC Eagle, 1977 - 1977 AMC Gremlin, 1980 - 1982 AMC Spirit, 1979 - 1979 AMC Spirit, 2013 - 2021 Blue Bird Vision School Bus, 1981 - 1986 Chevrolet Chevette, 1982 - 1982 Datsun 720, 1978 - 1978 Dodge D100, 1979 - 1979 Dodge D100, 1978 - 1978 Dodge D150, 1979 - 1980 Dodge D150, 1978 - 1978 Dodge D200, 1980 - 1980 Dodge D200, 1983 - 1985 Dodge Power Ram 50, 1983 - 1985 Dodge Ram 50, 1978 - 1978 Dodge W150, 1979 - 1979 Dodge W150, 1978 - 1978 Dodge W200, 1979 - 1979 Dodge W200
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Pontiac Firebird
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V2C8
Show less
A-Premium APTHE005 Engine Coolant Thermostat
A-Premium®Part # APTHE005
A-Premium APTHE005 Engine Coolant Thermostat
4.685 Reviews
$20.99
Edit ZIP code
2-year warranty
90 days free return
Fits 1980 - 1982 AMC Concord, 1981 - 1983 AMC Eagle, 1977 - 1977 AMC Gremlin, 1980 - 1982 AMC Spirit, 1979 - 1979 AMC Spirit, 2013 - 2021 Blue Bird Vision School Bus, 1982 - 1982 Isuzu I-Mark, 1984 - 1984 Isuzu I-Mark, 1985 - 1987 Jaguar Vanden Plas, 1978 - 1978 Jaguar XJ6, 1983 - 1987 Jaguar XJ6, 1971 - 1974 Jaguar XKE, 1980 - 1983 Jeep CJ5, 1980 - 1983 Jeep CJ7, 1980 - 1983 Jeep DJ5, 1981 - 1983 Jeep Scrambler, 2002 - 2002 Lincoln Blackwood, 2006 - 2008 Lincoln Mark LT, 1998 - 2014 Lincoln Navigator, 1991 - 2011 Lincoln Town Car
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Pontiac Firebird
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V0CQ
Show less
Thermostat Housing Assembly for Chevrolet Silverado 1500 1999-2003 GMC Cadillac
A-Premium®Part # APTHA0129
Thermostat Housing Assembly for Chevrolet Silverado 1500 1999-2003 GMC Cadillac
4.685 Reviews
$23.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2002 - 2003 Cadillac Escalade, 2002 - 2003 Cadillac Escalade, 2003 - 2003 Cadillac Escalade ESV, 2002 - 2003 Cadillac Escalade EXT, 2002 - 2003 Chevrolet Avalanche 1500, 1998 - 2002 Chevrolet Camaro, 1997 - 2003 Chevrolet Corvette, 2003 - 2003 Chevrolet Express 1500, 2003 - 2003 Chevrolet Express 2500, 2003 - 2003 Chevrolet Express 2500, 2003 - 2003 Chevrolet Express 2500, 2003 - 2003 Chevrolet Express 3500, 2003 - 2003 Chevrolet Express 3500, 2003 - 2003 Chevrolet Express 3500, 1999 - 2003 Chevrolet Silverado 1500, 1999 - 2003 Chevrolet Silverado 1500, 2003 - 2003 Chevrolet Silverado 1500, 2001 - 2003 Chevrolet Silverado 1500 HD, 1999 - 2002 Chevrolet Silverado 2500, 1999 - 2003 Chevrolet Silverado 2500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Pontiac Firebird
Item LocatedUnited States
Quantity1
MaterialAluminum
Part interchange
902-2701, 379160, 85254, 12571261, 8125712610
item #10027QWE
Show less
Engine Coolant Thermostat for GMC S15 Isuzu Oldsmobile Pontiac Subaru Suzuki 91℃
A-Premium®Part # APTHE078
Engine Coolant Thermostat for GMC S15 Isuzu Oldsmobile Pontiac Subaru Suzuki 91℃
4.685 Reviews
$20.99
Edit ZIP code
2-year warranty
90 days free return
Fits 1991 - 1995 GMC C2500, 1992 - 1995 GMC C2500 Suburban, 1991 - 1995 GMC C3500, 1991 - 1995 GMC C3500HD, 1991 - 1991 GMC G3500, 1992 - 1992 GMC G3500, 1993 - 1996 GMC G3500, 1995 - 1995 GMC Jimmy, 1992 - 1994 GMC Jimmy, 1991 - 1995 GMC K2500, 1992 - 1995 GMC K2500 Suburban, 1991 - 1995 GMC K3500, 1991 - 1995 GMC P3500, 1996 - 1997 GMC P3500, 1991 - 1991 GMC R2500 Suburban, 1991 - 1991 GMC R3500, 1988 - 1988 GMC S15, 1990 - 1990 GMC S15, 1995 - 1995 GMC Safari, 1992 - 1994 GMC Safari
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Pontiac Firebird
Item LocatedUnited States
Quantity1
ConditionNew
item #1013DTRR
Note
Start to Open Temperature: 91℃.
Show less
Engine Coolant Thermostat for Jeep Chevrolet Ford GMC Buick Cadillac Pontiac 88℃
A-Premium®Part # APTHE090
Engine Coolant Thermostat for Jeep Chevrolet Ford GMC Buick Cadillac Pontiac 88℃
4.685 Reviews
$13.99
Low stock: Only 3 left
Edit ZIP code
2-year warranty
90 days free return
Fits 1989 - 1990 Chrysler TC Maserati, 1982 - 1987 GMC S15, 1987 - 1987 Buick Skyhawk, 1981 - 1981 Chevrolet Chevette, 1989 - 1989 Isuzu Trooper, 1983 - 1989 GMC S15 Jimmy, 1988 - 1991 Pontiac Optima, 1970 - 1974 Saab Sonett, 1982 - 1988 Chevrolet Camaro, 1984 - 1986 Jeep Wagoneer, 1981 - 1982 Ford Courier, 1976 - 1977 Mercury Capri, 1966 - 1972 Opel Kadett, 1983 - 1986 Cadillac Cimarron, 1984 - 1985 Pontiac J2000 Sunbird, 1984 - 1986 Jeep Cherokee, 1983 - 1984 GMC S15, 1983 - 1986 Oldsmobile Firenza, 1971 - 1974 Mercury Capri, 1982 - 1982 Chevrolet Cavalier
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Pontiac Firebird
Item LocatedUnited States
Quantity1
ConditionNew
item #101881TK
Note
Start to Open Temperature: 88℃.
Show less
Engine Coolant Thermostat Housing Assembly for Chevrolet 99-03 GMC Sierra 1500
A-Premium®Part # APTHA0109
Engine Coolant Thermostat Housing Assembly for Chevrolet 99-03 GMC Sierra 1500
4.685 Reviews
$18.99
Edit ZIP code
2-year warranty
90 days free return
Fits 2002 - 2003 Cadillac Escalade, 2002 - 2003 Cadillac Escalade, 2003 - 2003 Cadillac Escalade ESV, 2002 - 2003 Cadillac Escalade EXT, 2002 - 2003 Chevrolet Avalanche 1500, 1998 - 2002 Chevrolet Camaro, 1997 - 2003 Chevrolet Corvette, 2003 - 2003 Chevrolet Express 1500, 2003 - 2003 Chevrolet Express 2500, 2003 - 2003 Chevrolet Express 2500, 2003 - 2003 Chevrolet Express 2500, 2003 - 2003 Chevrolet Express 3500, 2003 - 2003 Chevrolet Express 3500, 2003 - 2003 Chevrolet Express 3500, 1999 - 2003 Chevrolet Silverado 1500, 1999 - 2003 Chevrolet Silverado 1500, 2003 - 2003 Chevrolet Silverado 1500, 2001 - 2003 Chevrolet Silverado 1500 HD, 1999 - 2002 Chevrolet Silverado 2500, 1999 - 2003 Chevrolet Silverado 2500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Pontiac Firebird
Item LocatedUnited States
Quantity1
ColorNatural
item #1005DY14
Note
Engine Coolant Thermostat Housing Assembly -- With Water Pump Casting No. 12562459, Includes 186 Fahrenheit Degree Thermostat.
Show less
A-Premium APTHE003 Engine Coolant Thermostat
A-Premium®Part # APTHE003
A-Premium APTHE003 Engine Coolant Thermostat
4.685 Reviews
$20.99
Edit ZIP code
2-year warranty
90 days free return
Fits 1980 - 1982 AMC Concord, 1981 - 1983 AMC Eagle, 1977 - 1977 AMC Gremlin, 1980 - 1982 AMC Spirit, 1979 - 1979 AMC Spirit, 2013 - 2021 Blue Bird Vision School Bus, 1981 - 1986 Chevrolet Chevette, 1982 - 1982 Datsun 720, 1978 - 1978 Dodge D100, 1979 - 1979 Dodge D100, 1978 - 1978 Dodge D150, 1979 - 1980 Dodge D150, 1978 - 1978 Dodge D200, 1980 - 1980 Dodge D200, 1983 - 1985 Dodge Power Ram 50, 1983 - 1985 Dodge Ram 50, 1978 - 1978 Dodge W150, 1979 - 1979 Dodge W150, 1978 - 1978 Dodge W200, 1979 - 1979 Dodge W200
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Pontiac Firebird
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V2KW
Show less
Engine Coolant Thermostat for Jeep Cherokee 84-86 Chevy Camaro 82-88 Buick 92℃
A-Premium®Part # APTHE091
Engine Coolant Thermostat for Jeep Cherokee 84-86 Chevy Camaro 82-88 Buick 92℃
4.685 Reviews
$16.99
Low stock: Only 1 left
Edit ZIP code
2-year warranty
90 days free return
Fits 1989 - 1990 Chrysler TC Maserati, 1982 - 1987 GMC S15, 1987 - 1987 Buick Skyhawk, 1981 - 1981 Chevrolet Chevette, 1989 - 1989 Isuzu Trooper, 1983 - 1989 GMC S15 Jimmy, 1988 - 1991 Pontiac Optima, 1970 - 1974 Saab Sonett, 1982 - 1988 Chevrolet Camaro, 1984 - 1986 Jeep Wagoneer, 1981 - 1982 Ford Courier, 1976 - 1977 Mercury Capri, 1966 - 1972 Opel Kadett, 1983 - 1986 Cadillac Cimarron, 1984 - 1985 Pontiac J2000 Sunbird, 1984 - 1986 Jeep Cherokee, 1983 - 1984 GMC S15, 1983 - 1986 Oldsmobile Firenza, 1971 - 1974 Mercury Capri, 1982 - 1982 Chevrolet Cavalier
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Pontiac Firebird
Item LocatedUnited States
Quantity1
ConditionNew
item #1018827P
Note
Start to Open Temperature: 92℃.
Show less
ÜRO Parts GM0718508 Engine Coolant Thermostat Housing, Upper
ÜRO PartsPart # GM0718508
ÜRO Parts GM0718508 Engine Coolant Thermostat Housing, Upper
52 Reviews
$27.99
Edit ZIP code
3-year warranty
90 days free return
Fits 2004-2007 Buick Rainier, 2002-2006 Cadillac Escalade, 2002-2006 Cadillac Escalade EXT, 2003-2006 Cadillac Escalade ESV, 2004-2005 Cadillac CTS, 2006-2007 Cadillac CTS, 1997-2008 Chevrolet Corvette, 1998-2002 Chevrolet Camaro, 1999-1999 Chevrolet Silverado 2500, 1999-2006 Chevrolet Silverado 1500, 1999-2006 Chevrolet Silverado 1500, 2000-2000 Chevrolet Suburban 2500, 2000-2000 Chevrolet Tahoe, 2000-2000 Chevrolet Tahoe, 2000-2002 Chevrolet Silverado 2500, 2000-2002 Chevrolet Silverado 2500, 2000-2002 Chevrolet Suburban 1500, 2001-2003 Chevrolet Silverado 1500 HD, 2001-2006 Chevrolet Silverado 2500 HD, 2001-2006 Chevrolet Silverado 3500
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Pontiac Firebird
Item LocatedUnited States
Quantity1
Installation PositionUpper
ColorSilver
item #1000ZS32
Show less

What is an engine thermostat?

 While all engines can become too hot, if your thermostat isn't working correctly, your engine's well-being is at serious risk. The engine thermostat, often simply referred to as a thermostat, regulates the engine's operating temperature within an optimal range (typically around 195 to 220 degrees Fahrenheit).

How does a car thermostat work?

As a temperature-sensitive valve within the cooling system, a car thermostat responds to changes in coolant temperature. Understanding how it works by the following breakdown steps:

  • Closed position (cold start)

Initially closed to help the engine warm up quickly.

  • Heating up

The engine generates heat during operation.

  • Opening the thermostat

A temperature-sensitive element (usually wax) causes the thermostat to open gradually.

  • Coolant flow

When open, coolant flows from the engine to the radiator.

  • Maintaining optimal temperature

Adjusts coolant flow to maintain the ideal engine temperature.

  • Temperature regulation

Continuously adjusts to prevent overheating and ensure efficient operation.

Signs of a bad thermostat

  1. Overheating: The engine becomes excessively hot due to a stuck-closed thermostat.
  2. Low or fluctuating temperature: A thermostat stuck open results in a cooler engine, affecting fuel efficiency and heating.
  3. Temperature warning light: Illuminates to indicate engine overheating due to a faulty thermostat.
  4. Poor fuel efficiency: Stuck-open thermostat reduces fuel efficiency as the engine operates less efficiently at lower temperatures.
  5. Inadequate cabin heating: Insufficient cabin heating in cold weather with a thermostat that's stuck open.
  6. Coolant leaks: Gasket or sealing issues can lead to coolant leaks.
  7. Rapid temperature fluctuations: The gauge shows rapid swings between hot and cold.
  8. Engine running hot at idle: Higher engine temperature during idle or in traffic due to restricted coolant flow.
  9. Slow or inconsistent warm-up: Longer-than-normal warm-up times, even in moderate weather.
  10. Inconsistent heater operation: This affects the performance of the vehicle's heater, causing inconsistent or inadequate heating in cold weather.

Related Blogs

Why Does Coolant Boil After You Turn the Engine Off?

Learn why coolant boils or bubbles after you turn the engine off, how heat soak affects the cooling system, and how to diagnose leaks, trapped air, cap, thermostat, fan, water pump, or head gasket problems.

Jul 29, 2026