Think of the radiator s fins and looped coils as a heat exchanger that emanates heat from the engine and the fan helps enhance that process especially when the vehicle is stopped and there s no air flow from movement.
Hydraulic radiator cooling fan motor.
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Genuine toyota 16363 31130 cooling fan motor.
Caltric radiator cooling fan motor for polaris ranger 800 rzr s 800 efi 760cc 2009 2012 utv.
The hydraulic cooling fan runs at 500 rpm as soon as the engine is on as soon as the engine temperature rises above a certain level the pcm will command the hydraulic fan solenoid valve more open to ramp up the fan speed.
The radiator fan is a key part of your cooling system.
Direct driven fan drives require large tip clearance to allow for independent movement between the engine and radiator assembly.
The pcm sends a pwm signal to a solenoid valve on the fan motor giving it a variable rate.