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A-Premium®Part # APTHE004
A-Premium APTHE004 Engine Coolant Thermostat
4.651 Reviews
$31.99
Only 1 item left in stock
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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, 1999 - 1999 INFINITI G20, 1991 - 1996 INFINITI G20, 1981 - 1982 Isuzu I-Mark, 1983 - 1984 Isuzu I-Mark, 1983 - 1987 Isuzu Pickup, 1992 - 1992 Isuzu Stylus, 1984 - 1984 Isuzu Trooper, 1986 - 1987 Isuzu Trooper, 1982 - 1987 Jaguar Vanden Plas, 1978 - 1978 Jaguar XJ6, 1983 - 1987 Jaguar XJ6, 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, 1979 - 1985 Mazda RX-7, 1987 - 1988 Mazda RX-7, 1994 - 1997 Mercury Cougar, 1992 - 2011 Mercury Grand Marquis, 2005 - 2006 Mercury Monterey, 2002 - 2010 Mercury Mountaineer, 1983 - 1985 Mitsubishi Mighty Max, 1983 - 1983 Nissan 720, 1983 - 1983 Nissan 720, 1984 - 1986 Nissan 720, 1996 - 1998 Nissan 200SX, 1989 - 1998 Nissan 240SX, 1993 - 2001 Nissan Altima, 1991 - 1992 Nissan Axxess, 1990 - 1994 Nissan D21, 2006 - 2008 Nissan Frontier, 1991 - 1993 Nissan NX, 1995 - 1997 Nissan Pickup, 1983 - 1986 Nissan Sentra, 1991 - 1994 Nissan Sentra, 1998 - 2001 Nissan Sentra, 1990 - 1992 Nissan Stanza, 2000 - 2004 Nissan Xterra, 1989 - 1989 Peugeot 405, 1990 - 1991 Peugeot 405, 1971 - 1973 Plymouth Cricket, 1981 - 1986 Pontiac Acadian, 1980 - 1981 Pontiac Firebird, 1978 - 1978 Pontiac Sunbird, 1977 - 1980 Saab 99, 1979 - 1995 Saab 900, 1991 - 1993 Saab 900, 1994 - 1995 Saab 900, 1986 - 1990 Saab 9000, 1990 - 1995 Saab 9000, 1995 - 1995 Toyota Pickup, 1971 - 1973 Triumph Stag, 1975 - 1981 Triumph TR7, 2005 - 2006 Volkswagen Jetta
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Vehicle: Triumph
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V2C8
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Beck/ArnleyPart # 143-0701
Beck/Arnley 143-0701 Engine Coolant Thermostat
51 Reviews
$21.99
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3-year warranty
90 days free return
Fits 1981-1984 Isuzu I-Mark, 1981-1987 Isuzu Pickup, 1986-1987 Isuzu Trooper, 1968-1968 MG MGC, 1969-1969 MG MGC, 1977-1982 Porsche 924, 1975-1980 Saab 99, 1979-1984 Saab 900, 1985-1985 Saab 900, 1985-1988 Saab 900, 1986-1986 Saab 900, 1975-1981 Triumph TR7, 1959-1960 Volvo 122, 1961-1961 Volvo 122, 1961-1961 Volvo 122, 1962-1968 Volvo 122, 1970-1972 Volvo 1800, 1992-1997 Volvo 960, 1993-1997 Volvo 850, 1997-1998 Volvo S90, 1997-1998 Volvo V90, 1998-2000 Volvo S70, 1998-2001 Volvo V70, 1998-2004 Volvo C70, 2000-2002 Volvo S40, 2000-2002 Volvo S40, 2000-2004 Volvo V40, 2002-2002 Volvo V70, 2003-2003 Volvo S40, 2004-2004 Volvo S40, 2004-2006 Volvo S80
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Vehicle: Triumph
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0701
item #1000XDHN
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Beck/ArnleyPart # 143-0156
Beck/Arnley 143-0156 Engine Coolant Thermostat
51 Reviews
$15.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1964-1968 Alfa Romeo Giulia Sprint, 1960-1966 Austin Mini, 1962-1962 Austin Mini Cooper, 1963-1963 Austin Mini Cooper, 1964-1964 Austin Mini Cooper, 1965-1965 Austin Mini Cooper, 1966-1967 Austin Mini Cooper, 1968-1969 Austin Mini Cooper, 1968-1970 Austin America, 1973-1975 Austin Marina, 1956-1959 Austin Healey 100-6, 1958-1961 Austin Healey Sprite, 1959-1967 Austin Healey 3000, 1962-1962 Austin Healey Sprite, 1963-1966 Austin Healey Sprite, 1967-1967 Austin Healey Sprite, 1968-1969 Austin Healey Sprite, 1988-1989 Eagle Premier, 1967-1969 Fiat 124, 1968-1969 Fiat 124, 1968-1969 Fiat 124, 1968-1969 Fiat 124, 1968-1969 Fiat 850, 1970-1970 Fiat 124, 1970-1970 Fiat 850, 1971-1971 Fiat 124, 1971-1971 Fiat 850, 1971-1971 Fiat 850, 1971-1971 Fiat 850, 1971-1973 Fiat 124, 1971-1973 Fiat 124, 1971-1973 Fiat 124, 1971-1973 Fiat 850, 1960-1960 Ford Prefect, 1961-1961 Ford Prefect, 1963-1963 Ford Anglia, 1963-1963 Ford Cortina, 1964-1964 Ford Anglia, 1964-1964 Ford Cortina, 1965-1966 Ford Cortina, 1965-1967 Ford Anglia, 1967-1970 Ford Cortina, 1971-1973 Ford Pinto, 1975-1978 Ford Pinto, 1956-1964 Hillman Minx, 1958-1966 Hillman Husky, 1964-1966 Hillman Super Minx, 1950-1954 Jaguar XK120, 1951-1957 Jaguar Mark VII, 1955-1957 Jaguar XK140, 1958-1958 Jaguar XK150, 1959-1961 Jaguar Mark IX, 1959-1961 Jaguar XK150, 1962-1964 Jaguar XKE, 1962-1966 Jaguar Mark X, 1967-1967 Jaguar 420, 1969-1970 Jaguar XKE, 1971-1971 Jaguar XKE, 1959-1966 Land Rover Land Rover, 1967-1974 Land Rover Land Rover, 1959-1961 MG MGA, 1960-1962 MG MGA, 1962-1962 MG Magnette, 1962-1962 MG Midget, 1963-1967 MG 1100, 1963-1972 MG MGB, 1963-1974 MG Midget, 1973-1976 MG MGB, 1975-1979 MG Midget, 1977-1980 MG MGB, 1955-1963 Mercedes-Benz 190SL, 1960-1961 Mercedes-Benz 180b, 1960-1962 Mercedes-Benz 190B, 1971-1972 Mercury Capri, 1957-1958 Morris Minor, 1959-1962 Morris Minor, 1963-1967 Morris Minor, 1983-1983 Nissan Sentra, 1983-1984 Nissan Pulsar NX, 1968-1968 Opel Kadett, 1968-1968 Opel Kadett, 1969-1973 Opel Opel, 1970-1970 Opel Kadett, 1971-1972 Opel 1900, 1971-1974 Opel 1900, 1973-1974 Opel Manta, 1974-1974 Opel 1900, 1974-1974 Opel Manta, 1975-1975 Opel 1900, 1975-1975 Opel Manta, 1971-1972 Peugeot 304, 1966-1971 Rover 2000, 1969-1971 Rover 3500S, 1980-1980 Rover 3500, 1965-1965 Saab 95, 1965-1965 Saab 96, 1966-1966 Saab 95, 1966-1966 Saab 96, 1966-1967 Saab 95, 1966-1967 Saab 96, 1969-1971 Saab 99, 1971-1972 Saab 99, 1973-1974 Saab 99, 1960-1960 Sunbeam Alpine, 1960-1960 Sunbeam Rapier, 1961-1961 Sunbeam Alpine, 1961-1961 Sunbeam Rapier, 1962-1963 Sunbeam Alpine, 1962-1963 Sunbeam Rapier, 1954-1955 Triumph TR2, 1956-1957 Triumph TR3, 1958-1960 Triumph TR3A, 1960-1961 Triumph Herald, 1961-1961 Triumph TR3A, 1962-1962 Triumph TR3B, 1962-1962 Triumph TR3B, 1962-1964 Triumph TR4, 1963-1967 Triumph Spitfire, 1965-1967 Triumph TR4A, 1967-1973 Triumph GT6, 1968-1968 Triumph TR250, 1968-1972 Triumph Spitfire, 1969-1974 Triumph TR6, 1973-1980 Triumph Spitfire, 1974-1974 Triumph TR6, 1975-1976 Triumph TR6, 1980-1981 Triumph TR8, 1961-1962 Vauxhall Victor
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Vehicle: Triumph
Item LocatedUnited States
Quantity1
Part interchange
143-0156
item #1000XG9H
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Beck/ArnleyPart # 143-0149
Beck/Arnley 143-0149 Engine Coolant Thermostat
51 Reviews
$19.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1964-1968 Alfa Romeo Giulia Sprint, 1997-2002 Audi A4, 1960-1966 Austin Mini, 1962-1962 Austin Mini Cooper, 1963-1963 Austin Mini Cooper, 1964-1964 Austin Mini Cooper, 1965-1965 Austin Mini Cooper, 1966-1967 Austin Mini Cooper, 1968-1969 Austin Mini Cooper, 1968-1970 Austin America, 1973-1975 Austin Marina, 1956-1959 Austin Healey 100-6, 1958-1961 Austin Healey Sprite, 1959-1967 Austin Healey 3000, 1962-1962 Austin Healey Sprite, 1963-1966 Austin Healey Sprite, 1967-1967 Austin Healey Sprite, 1968-1969 Austin Healey Sprite, 1988-1989 Eagle Premier, 1967-1969 Fiat 124, 1968-1969 Fiat 124, 1968-1969 Fiat 124, 1968-1969 Fiat 124, 1968-1969 Fiat 850, 1970-1970 Fiat 124, 1970-1970 Fiat 850, 1971-1971 Fiat 124, 1971-1971 Fiat 850, 1971-1971 Fiat 850, 1971-1971 Fiat 850, 1971-1973 Fiat 124, 1971-1973 Fiat 124, 1971-1973 Fiat 124, 1971-1973 Fiat 850, 1960-1960 Ford Prefect, 1961-1961 Ford Prefect, 1963-1963 Ford Anglia, 1963-1963 Ford Cortina, 1964-1964 Ford Anglia, 1964-1964 Ford Cortina, 1965-1966 Ford Cortina, 1965-1967 Ford Anglia, 1967-1970 Ford Cortina, 1971-1973 Ford Pinto, 1975-1978 Ford Pinto, 1956-1964 Hillman Minx, 1958-1966 Hillman Husky, 1964-1966 Hillman Super Minx, 1950-1954 Jaguar XK120, 1951-1957 Jaguar Mark VII, 1955-1957 Jaguar XK140, 1958-1958 Jaguar XK150, 1959-1961 Jaguar Mark IX, 1959-1961 Jaguar XK150, 1962-1964 Jaguar XKE, 1962-1966 Jaguar Mark X, 1967-1967 Jaguar 420, 1969-1970 Jaguar XKE, 1971-1971 Jaguar XKE, 1959-1966 Land Rover Land Rover, 1967-1974 Land Rover Land Rover, 1959-1961 MG MGA, 1960-1962 MG MGA, 1962-1962 MG Magnette, 1962-1962 MG Midget, 1963-1967 MG 1100, 1963-1972 MG MGB, 1963-1974 MG Midget, 1973-1976 MG MGB, 1975-1979 MG Midget, 1977-1980 MG MGB, 1955-1963 Mercedes-Benz 190SL, 1960-1961 Mercedes-Benz 180b, 1960-1962 Mercedes-Benz 190B, 1971-1972 Mercury Capri, 1957-1958 Morris Minor, 1959-1962 Morris Minor, 1963-1967 Morris Minor, 1983-1983 Nissan Sentra, 1983-1984 Nissan Pulsar NX, 1968-1968 Opel Kadett, 1968-1968 Opel Kadett, 1969-1973 Opel Opel, 1970-1970 Opel Kadett, 1971-1972 Opel 1900, 1971-1974 Opel 1900, 1973-1974 Opel Manta, 1974-1974 Opel 1900, 1974-1974 Opel Manta, 1975-1975 Opel 1900, 1975-1975 Opel Manta, 1971-1972 Peugeot 304, 1966-1971 Rover 2000, 1969-1971 Rover 3500S, 1980-1980 Rover 3500, 1965-1965 Saab 95, 1965-1965 Saab 96, 1966-1966 Saab 95, 1966-1966 Saab 96, 1966-1967 Saab 95, 1966-1967 Saab 96, 1969-1971 Saab 99, 1971-1972 Saab 99, 1973-1974 Saab 99, 1960-1960 Sunbeam Alpine, 1960-1960 Sunbeam Rapier, 1961-1961 Sunbeam Alpine, 1961-1961 Sunbeam Rapier, 1962-1963 Sunbeam Alpine, 1962-1963 Sunbeam Rapier, 1954-1955 Triumph TR2, 1956-1957 Triumph TR3, 1958-1960 Triumph TR3A, 1960-1961 Triumph Herald, 1961-1961 Triumph TR3A, 1962-1962 Triumph TR3B, 1962-1962 Triumph TR3B, 1962-1964 Triumph TR4, 1963-1967 Triumph Spitfire, 1965-1967 Triumph TR4A, 1967-1973 Triumph GT6, 1968-1968 Triumph TR250, 1968-1972 Triumph Spitfire, 1969-1974 Triumph TR6, 1973-1980 Triumph Spitfire, 1974-1974 Triumph TR6, 1975-1976 Triumph TR6, 1980-1981 Triumph TR8, 1961-1962 Vauxhall Victor, 1998-2005 Volkswagen Beetle, 1998-2005 Volkswagen Passat
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Vehicle: Triumph
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0149
item #1000XG3Z
Show less
Beck/ArnleyPart # 143-0702
Beck/Arnley 143-0702 Engine Coolant Thermostat
51 Reviews
$21.99
Edit ZIP code
3-year warranty
90 days free return
Fits 1981-1984 Isuzu I-Mark, 1981-1987 Isuzu Pickup, 1986-1987 Isuzu Trooper, 1968-1968 MG MGC, 1969-1969 MG MGC, 1977-1982 Porsche 924, 1975-1980 Saab 99, 1979-1984 Saab 900, 1985-1985 Saab 900, 1985-1988 Saab 900, 1986-1986 Saab 900, 1975-1981 Triumph TR7, 1959-1960 Volvo 122, 1961-1961 Volvo 122, 1961-1961 Volvo 122, 1962-1968 Volvo 122, 1970-1972 Volvo 1800, 1992-1997 Volvo 960, 1993-1997 Volvo 850, 1997-1998 Volvo S90, 1997-1998 Volvo V90, 1998-2000 Volvo S70, 1998-2001 Volvo V70, 1998-2004 Volvo C70, 2000-2002 Volvo S40, 2000-2002 Volvo S40, 2000-2004 Volvo V40, 2002-2002 Volvo V70, 2003-2003 Volvo S40, 2004-2004 Volvo S40, 2004-2006 Volvo S80
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Triumph
Item LocatedUnited States
Quantity1
Part interchange
143-0702
item #1000XG05
Show less
A-Premium®Part # APTHE003
A-Premium APTHE003 Engine Coolant Thermostat
4.651 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, 1981 - 1982 Isuzu I-Mark, 1983 - 1984 Isuzu I-Mark, 1983 - 1987 Isuzu Pickup, 1992 - 1992 Isuzu Stylus, 1984 - 1984 Isuzu Trooper, 1986 - 1987 Isuzu Trooper, 1982 - 1987 Jaguar Vanden Plas, 1978 - 1978 Jaguar XJ6, 1983 - 1987 Jaguar XJ6, 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, 1995 - 1995 Toyota Pickup, 1971 - 1973 Triumph Stag, 1975 - 1981 Triumph TR7, 2005 - 2006 Volkswagen Jetta, 1979 - 1985 Mazda RX-7, 1987 - 1988 Mazda RX-7, 1994 - 1997 Mercury Cougar, 1992 - 2011 Mercury Grand Marquis, 2005 - 2006 Mercury Monterey, 2002 - 2010 Mercury Mountaineer, 1989 - 1989 Peugeot 405, 1990 - 1991 Peugeot 405, 1971 - 1973 Plymouth Cricket, 1981 - 1986 Pontiac Acadian, 1980 - 1981 Pontiac Firebird, 1978 - 1978 Pontiac Sunbird, 1977 - 1980 Saab 99, 1979 - 1995 Saab 900, 1991 - 1993 Saab 900, 1994 - 1995 Saab 900, 1986 - 1990 Saab 9000, 1992 - 1992 Saab 9000, 1990 - 1995 Saab 9000, 1983 - 1985 Mitsubishi Mighty Max, 1983 - 1983 Nissan 720, 1983 - 1983 Nissan 720, 1984 - 1986 Nissan 720, 1983 - 1986 Nissan Sentra
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Triumph
Item LocatedUnited States
Quantity1
MaterialMetal and Rubber
ConditionNew
item #1005V2KW
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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
- Overheating: The engine becomes excessively hot due to a stuck-closed thermostat.
- Low or fluctuating temperature: A thermostat stuck open results in a cooler engine, affecting fuel efficiency and heating.
- Temperature warning light: Illuminates to indicate engine overheating due to a faulty thermostat.
- Poor fuel efficiency: Stuck-open thermostat reduces fuel efficiency as the engine operates less efficiently at lower temperatures.
- Inadequate cabin heating: Insufficient cabin heating in cold weather with a thermostat that's stuck open.
- Coolant leaks: Gasket or sealing issues can lead to coolant leaks.
- Rapid temperature fluctuations: The gauge shows rapid swings between hot and cold.
- Engine running hot at idle: Higher engine temperature during idle or in traffic due to restricted coolant flow.
- Slow or inconsistent warm-up: Longer-than-normal warm-up times, even in moderate weather.
- Inconsistent heater operation: This affects the performance of the vehicle's heater, causing inconsistent or inadequate heating in cold weather.