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Home Cooling Solutions Fan Drives/Clutches Arctis Two-Speed

Arctis Two-Speed Fan Clutches

Arctis Two-Speed Fan Clutches offer a better, more efficient cooling solution for on- and off-highway vehicles without ram air. Rigorously tested, Arctis Two-Speed Fan Clutches are engineered for reliability and long operating life in the highest-heat under-hood conditions.

The Arctis Two-Speed alternates between eddy current and spring-actuated cooling for precise, highly efficient temperature control and superior horsepower performance. Under most operating conditions, the Arctis Two-Speed Fan Clutches are powered by eddy current-turning the fan at a lower speed. When additional cooling is needed, the Arctis Two-Speed spring actuates and runs the fan at full input speed.


  • Medium-duty trucks
  • Buses
  • Severe-service vehicles
  • Rear-engine cement mixers
  • Other on- and off-highway equipment with little to no ram air


Actuation Eddy current at low speed with spring lockup
Minimum air pressure to disengage 620.5 kPa [90 psi]
Out-of-box torque 305 N-m [2,700 in-lbs.]
Friction disc diameter 200.6 mm [7.9 in.]
Fan blade capacity (diameter) Application specific
Engine horsepower rangeUp to 447 kW* [600 HP]
Friction liner wear limit, minimum thickness 5.76 mm [0.23 in.]

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