Horton has introduced its Stratis Viscous Fan Drives in anticipation of the 2010 and Euro V emissions standards.

Managed by the engine's electronic control unit for precision fan speed control, these directly controlled viscous fan drives are designed to cool higher-horsepower, hotter-running engines. Stratis Viscous Fan Drives have been rigorously tested in the laboratory and in many long-haul trucks. Stratis fan drives are offered for heavy- and medium-duty applications, transit buses, motor coaches and off-highway equipment.

"This product is the result of years of analysis and testing to produce cooling solutions for the significantly hotter engines that result from reduced-emission regulations," says Jeff Lindgren, Horton's senior vice president sales and marketing.

The viscous fan drive is equipped with an integral fan speed sensor that provides closed-loop control capabilities. Stratis has an optimized magnetic design that speeds reaction time for better modulation and cooling. In addition, the innovative reservoir, actuator and valve system combine to deliver a lower off-speed and faster response time resulting in optimum cooling, reduced fan noise and increased fuel efficiency.

Stratis has a rear-mounted cable harness to shield the connection from fan blades. The fan installs on the front of the fan drive to increase airflow for maximum cooling. Stratis directly controlled viscous fan drives are engineered to turn Horton's WindMaster or competitive fans.

More info: www.hortonww.com/stratis