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The cooling system prevents the engine from running too hot or cold by circulating coolant using a water pump. It's controlled by the thermostat to the radiator, with the airflow assisted by the fan and belt. Perkins cooling systems are carefully specified and tested for many tens of thousands of hours to maximize efficiency and prolong engine life.
Perkins coolant relief valves

Perkins coolant relief valves

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Perkins fan belts

Perkins fan belts

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Perkins pulleys

Perkins pulleys

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Perkins radiator systems

Perkins radiator systems

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Perkins thermostats

Perkins thermostats

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Perkins water pumps

Perkins water pumps

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