The new DM Advantage fan drives from Horton are offered in on/off and two-speed versions, said to handle the highest-heat under-hood applications. Features include premium bearings, a “superior” air cartridge, and a long-wearing friction liner.

The spring-engaged on/off fan keeps engine coolant at a more consistent operating temperature and has increased reliability in high-horsepower applications, Horton says. It features high torque for turning larger fans, a lighter weight, low parts count for simplicity, and what’s called “a fail-safe design”.

The two-speed version alternates between eddy current and spring-actuated cooling for precise and efficient temperature control and faster engine warm-ups in cold weather, the company explains. It’s ideal for vehicles with little or no ram air. While using eddy current, it turns the fan at a lower speed, which reduces operating noise, increases available horsepower for auxiliary systems, and minimizes radiator abrasion from dust and debris.  When additional cooling is needed, it spring-actuates and runs the fan at full input speed. 

These drives have undergone two years of field testing in the highest-heat under-hood applications, the maker says. The tests involved over 250 trucks driven more than 45 million miles.

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