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Thermostat

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Beck/Arnley 143-0156 Engine Coolant Thermostat
Beck/ArnleyPart # 143-0156
Beck/Arnley 143-0156 Engine Coolant Thermostat
51 Reviews
$15.99
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3-year warranty
90 days free return
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Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Vauxhall
Item LocatedUnited States
Quantity1
Part interchange
143-0156
item #1000XG9H
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Beck/Arnley 143-0149 Engine Coolant Thermostat
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
Add Trim and Engine info to ensure a guaranteed fit
Vehicle: Vauxhall
Item LocatedUnited States
QuantityOne Set
Part interchange
143-0149
item #1000XG3Z
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.