In a 2-Speed fan clutch, when the fan clutch is disengaged, the fan still rotates at 15-25% of the engine RPM. This fan rotation provides crucial airflow to the engine and draws virtually no horsepower.
A 2-speed fan clutch is ideal for vocational applications where the fan clutch engagement time exceeds 10% of the engine run time.
Fewer fan clutch engagements means less horsepower draw.
Longer Fan Clutch Life
Providing constant cooling means reducing engagement cycles and this will improve the life of the fan clutch, fan belts and belt tensioner.
Lower Under-Hood Temperatures
Lower under-hood temperature is better for the engine and all the engine components.
Improved Fuel Economy
As you recapture your lost horsepower, you improve fuel economy.
HORSEPOWER SAVED = Fuel mileage Earned
Fewer engagements reduces noise and improves driver comfort.