As with all our Toro Genuine Parts, Toro belts are designed, and manufactured to fit a specific application for a piece of Toro equipment. Toro engineers make sure each belt is specifically designed for the drive and will perform as promised. Toro belts are extensively lab and field tested to assure our customers of maximum performance. Belts may be identical in size but not in construction. Using a wrong belt may not only cause the belt to fail but that failure may cause other components to be severely damaged as well.