One replacement Troy Bilt Horse Roto Tiller Replacement Belt, code 9245, fits 4 speed models. This belt measures 1/2" X 22-1/4" and is a Raw Edge, Laminated, Aramid Cord belt to handle the potential heat generated by belt slippage. Belt specifications as follows: Length: 22-1/4"" Width: 1/2" Construction: Raw Edge, Laminated, Aramid Cord Made by Rotary Corp a leader in Lawn and Garden Replacement Parts