About the Mars B39 Hi-Power II V-Belt, 21/32" Top Width, 13/32" Thickness, 39" Length (74431)
Order now and get the Mars 74431 Hi-Power II Classical Belt, B39 and update your system with a popular collection. This Hi-Power II belt is the best choice for conventional V-belt drives in heavy-duty applications. It is used in heating and cooling applications, like with furnace blower wheels. Technically, Gates is the manufacturer and Mars is the distributor, but it's all the same family of products.
As the manufacturer describes it, Hi-Power II belts have patented concave sidewalls to distribute wear evenly while providing proper belt support for improved service life.Mars makes products that we're proud to carry. Make sure you have the right part number, and if you aren't certain, try contacting us.