BorgWarner Thermal Systems is to supply Visctronic fan drives as optional equipment for Freightliner Cascadia trucks powered by DD13 and DD15 engines.

The electronically controlled Visctronic fan drives operate only when needed and at the appropriate speed, freeing up engine power and contributing to better fuel economy. Tighter control of engine temperature also extends engine and component life.

"To meet stringent emissions regulations, today's heavy-duty commercial truck engines run at higher temperatures, making cooling systems a critical engine component," said BorgWarner Thermal Systems Daniel CasaSanta.

[The] "Visctronic fan drives respond directly to engine demands, delivering precise cooling to keep truck fleets running more efficiently. Through specifically calibrated software, the fan drive communicates with the engine's electronic control unit (ECU) to continuously determine the engine's cooling needs.

"With the on/off fan drives already standard equipment on these engines, we are pleased to expand our business with Freightliner by offering truck fleets the option to improve fuel economy and increase horsepower."