This system was intended for improving large size engine's performance, fan noise, and vibration over precious engine's direct connection method.
The basic principle for this Fluid Motivating Fan Clutch is that a fan is installed in the driven casing setting high viscous fluid around a disk typed drive axis.
This is the most important part for engine cooling fan activating system for the present automobiles.
This mechanism can generally be called Air Temperature Sensitive Viscous Fan Drive or Modulated Viscous Fan Drive
Description
Compatible with 00-03 Ford Excursion, 99-03 Ford F-250 Super Duty, 99-03 Ford F-350 Super Duty