John Deere diesel 997 unit. Very heavy duty commercial unit with full hydraulic / hydrostatic cut and drive systems. 31hp 1300 cc diesel engine, 11.5 gallon tank, 72" cutting deck, z track design model. It's got 2259 hours being a 2015 model. Starts, runs and cuts good. Very expensive and high end mower at a good price, many comparable selling for higher prices. three 0 seven - 3ninenine- sixtyfive twentyeight