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Home Cooling Solutions Fan Drives/Clutches RCX Series

RCX Viscous Fan Clutches for On-Highway Vehicles

From the global engine cooling pioneer comes the most cutting-edge, heavy-duty fan drive yet. Designed specifically for over-the-road and vocational trucks, the bracket-mounted RCX fan drive features a durable rigid design, industry-leading low-speed controllability, lower off speeds and Cold-Start Disengagement (CSD™) technology. Due to the integrated mounting bracket it has as decreased risk of damage due to belt failure.


  • Heavy-duty trucks
  • Medium-duty trucks
  • Vocational trucks
  • Buses
  • Specialty on-highway vehicles
  • Variety of off-highway equipment


Maximum torque230 N-m [2,035 in.-lbs.]
Typical Fan Diameter711-864mm (28-34 in)
Typical Horsepower Range300-522 kW [400-700 HP]
Drive mass 9 kg [19.8 lbs.] (depending on the shaft)
Drive diameter 275 mm [10.83 in.]
Voltage 12v and 24v
Typical engine displacement 10-15 L

Recommended Fans

RS Nylon Molded Ring Fans

Higher cooling performance at lower fan speeds with ring design that reduces fan-tip turbulence. Ideal for heavy-, medium- and light-duty trucks and buses. 550 – 813 mm [22” – 32”]