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

Two speeds. One more efficient engine. By switching between eddy current and spring-actuated cooling, the Horton DM Advantage Two-Speed remanufactured fan clutch helps maximize what's possible from a truck's power supply.

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

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