The biggest advantage to running an engine driven fan over an electric fan is cooling effieciency. An engine driven fan can move a greater volume of air which is essential when 4WDing at low speed and high engine load. An engine driven fan is also more reliable with only the belt to fail. An electric fan can fail to operate for multiple reasons such as fuses, all wiring connections, physical failure of the fan, failure of the motor or failure of the thermostat.
We have also found that in 4WD-ing applications it is common for electric thermo fans to physically break when undertaking river crossings. This can cause damage to the radiator and other components in the engine bay that could leave you standed.
- LS1 water pump
- Water pump pulley (short) to suit LS1, LS2 and LS3 engines and accessories
- Viscous clutch
- Reverse rotation fan
- Nuts, bolts and washers
Note: The short water pump pulley is suited to vehicles with a reduced engine to radiator clearance such as the Toyota Hilux, 70 Series LandCruiser or Land Rovers.