The DM Advantage fan drives from Horton meet industry demands for engine cooling, fuel savings, and noise reduction. Offered in on/off and two-speed technologies, the drives are engineered for high-heat underhood applications. Composed of bearings, air cartridge, and a friction liner, the spring-engaged drive keeps engine coolant at a consistent operating temperature and offers improved reliability in high-power applications. Improvements in cooling ability yield better engine performance and longer operating life, according to the company. Features include high torque for turning larger fans, lighter weight, low part count, and a fail-safe design. The DM two-speed fan drive alternates between eddy current and spring-actuated cooling for efficient temperature control and faster engine warm-ups in cold weather, making it suitable for vehicles with little or no ram air.