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Beck/ArnleyPart # 143-0602

Beck/Arnley 143-0602 Engine Coolant Thermostat

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$30.99

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3-year warranty

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Fits 1985-1986 BMW 524td, 1990-1991 Dodge Monaco, 1988-1989 Eagle Premier, 1990-1992 Eagle Premier, 1988-1992 Jaguar XJ6, 1960-1965 Mercedes-Benz 220, 1960-1965 Mercedes-Benz 220S, 1960-1966 Mercedes-Benz 220SE, 1963-1965 Mercedes-Benz 190C, 1963-1965 Mercedes-Benz 190DC, 1963-1966 Mercedes-Benz 230SL, 1965-1965 Mercedes-Benz 300SEL, 1966-1967 Mercedes-Benz 230S, 1966-1967 Mercedes-Benz 250S, 1966-1968 Mercedes-Benz 200D, 1966-1969 Mercedes-Benz 230, 1966-1969 Mercedes-Benz 300SEL, 1967-1967 Mercedes-Benz 250SL, 1967-1968 Mercedes-Benz 200, 1968-1969 Mercedes-Benz 280SE, 1968-1970 Mercedes-Benz 250, 1968-1971 Mercedes-Benz 280S, 1968-1971 Mercedes-Benz 280SEL, 1968-1973 Mercedes-Benz 220, 1968-1973 Mercedes-Benz 220D, 1970-1971 Mercedes-Benz 280SE, 1970-1971 Mercedes-Benz 300SEL, 1971-1971 Mercedes-Benz 250, 1971-1972 Mercedes-Benz 250C, 1972-1972 Mercedes-Benz 350SL, 1972-1973 Mercedes-Benz 280SE, 1972-1973 Mercedes-Benz 280SEL, 1972-1973 Mercedes-Benz 300SEL, 1973-1976 Mercedes-Benz 280, 1973-1976 Mercedes-Benz 280C, 1973-1976 Mercedes-Benz 450SE, 1973-1980 Mercedes-Benz 450SEL, 1973-1980 Mercedes-Benz 450SL, 1973-1980 Mercedes-Benz 450SLC, 1974-1978 Mercedes-Benz 230, 1975-1976 Mercedes-Benz 280S, 1977-1980 Mercedes-Benz 280SE, 1977-1981 Mercedes-Benz 280E, 1978-1981 Mercedes-Benz 280CE, 1984-1993 Mercedes-Benz 190E, 1986-1989 Mercedes-Benz 300E, 1987-1989 Mercedes-Benz 260E, 1988-1988 Mercedes-Benz 300TE, 1988-1991 Mercedes-Benz 300SEL, 1988-1993 Mercedes-Benz 300CE, 1988-1993 Mercedes-Benz 300SE, 1990-1992 Mercedes-Benz 300E, 1990-1993 Mercedes-Benz 300SL, 1993-1993 Mercedes-Benz 300E, 1994-1996 Mercedes-Benz E320, 1994-1997 Mercedes-Benz C280, 1994-1997 Mercedes-Benz SL320, 1994-1999 Mercedes-Benz S320, 1994-1999 Mercedes-Benz S600, 1994-2002 Mercedes-Benz SL600, 1995-1998 Mercedes-Benz S500, 1995-1998 Mercedes-Benz SL500, 1997-1997 Mercedes-Benz E320, 1998-1999 Mercedes-Benz CL600, 1999-1999 Mercedes-Benz S500, 2004-2007 Mercedes-Benz SL600, 2005-2007 Mercedes-Benz SL65 AMG, 1987-1987 Peugeot 505, 1987-1988 Peugeot 505, 1987-1988 Peugeot 505, 1987-1990 Peugeot 505, 1988-1990 Peugeot 505, 1989-1989 Peugeot 505, 1989-1990 Peugeot 505, 1990-1990 Peugeot 505, 1984-1984 Renault Fuego, 1984-1986 Renault R18i, 1985-1985 Renault Fuego, 1976-1976 Volvo 262, 1976-1979 Volvo 264, 1976-1979 Volvo 265, 1978-1981 Volvo 262, 1980-1980 Volvo 265, 1980-1981 Volvo 264, 1981-1981 Volvo 265, 1982-1982 Volvo 264, 1987-1988 Volvo 780, 1988-1990 Volvo 760, 1989-1990 Volvo 780

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Vehicle: Renault

Item LocatedUnited States

QuantityOne Set

Part interchange

143-0602

item #1000XG1K

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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.

Thermostat

What is an engine thermostat?

How does a car thermostat work?

Signs of a bad thermostat

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