A higher-torque EC600 electromagnetic on/off fan drive from Horton was designed for use on medium-duty trucks, buses, and off-highway equipment. The diesel fan drive offers 125 lb·ft (170 N·m) out-of-box torque and delivers rapid cooling. It engages 10% of the time as needed, and features engine temperature control to ensure the vehicle operates at maximum fuel efficiency and can haul heavier loads and scale steeper grades with minimal drag, according to the company. Other benefits include improved engine warming, more effective cab heating, and efficient air-conditioning system operation. Suitable for vehicles without air brakes and those in highly regulated, cost-conscious environments, the EC600 requires minimal installation and requires no lifetime maintenance.