Protex Fan Clutches

Fan clutchesFan clutches reduce the drain of engine power and improve the efficiency of a vehicle’s cooling system. Fan clutches are fluid coupling devices which provide air flow through the radiator by using the water pump shaft to power a fan blade. Fan clutch should be checked for possible replacement when a new water pump is installed or when any of the following problems exist:

  • Engine Overheating
  • Silicon leaking from fan clutch unit
  • Fan spins with little or no resistance (free wheels)
  • Greasy build up at thermal spring or where shaft exits rear housing
  • Fan clutch vibrates on shaft or will not turn
  • Squealing noises from bearing
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