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A winding highway takes a turnA winding highway takes a turn

On-Highway Drives DM Advantage® Two-Speed Fan Clutches

DM Advantage Two-Speed Pneumatic Fan Drive

DM Advantage Two-Speed Fan Clutch alternate between eddy current and spring-actuated cooling. While using eddy current, the fan clutch turns the fan at a lower speed, which reduces operating noise, increases available horsepower for auxiliary systems and minimizes radiator abrasion from dust and debris. It spring-actuates when more cooling is needed, running the fan at full input speed. It also provides faster engine warm-ups in cold weather.


  • Heavy-duty trucks
  • Medium-duty trucks
  • Variety of off-highway equipment


Eddy current at low speed with spring lockup
Horsepower range
Diesel engines up to 447 kW* [600 HP]
Fan blade capacity
Application specific
Air pressure requirements
Minimum 620.5 kPa [90 psi]

* Contact Horton engineering for applications above this horsepower range.

Features & Benefits

  • Alternates eddy-current and spring-actuated cooling to moderate operating noise, increase available horsepower, conserve fuel and minimize radiator abrasion
  • Allows faster engine warmups in cold weather for operating efficiency
  • Premium sheave bearing and long-wearing friction liner for maximum reliability and long operating life
  • Fail-safe design and lower parts count for easy installation and maintenance
  • Offers high torque for turning larger fans

Related Documents

Contact Horton

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