![BorgWarner Application Engineer Ryan Livingston detailed the K32 Durospeed at a Mid-American Trucking Show press briefing Wednesday.](https://img.overdriveonline.com/files/base/randallreilly/all/image/2015/03/ovd.BorgWarner-rep-and-K32.png?auto=format%2Ccompress&fit=max&q=70&w=400)
Today, noted BorgWarner Account Manager Lance Wildman, on-off or variable speed fan drives (like the BW Vistronic variable) in linehaul and vocational applications are quite common. Two-speed drives, however, Wildman expects, will dominate vocational applications within the next five years, given the elevated cooling you get when disengaged.
Built on the back of the K32 on-off, which Livingston described as “industry standard” in the on-off realm, the K32 Durospeed is made in the United States and built for ease of maintenance. Line and seal service kits are available for regular service. Conversion from any of BorgWarner’s “on-off fan drives that are in the field today” is a relatively simple matter, he added.