To provide the exact degree of cooling needed, Horton's VS viscous directly-controlled fan drive uses adjusts its output using pulse-width-modulation (PWM) signals from the engine management system.

Warning: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

The EC600 electromagnetic on-off fan clutch meets diesel engines' demands via no-slip operation and superior design.

Warning: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov