Toro Groundsmaster 31598N 5900 Mower, 4,452 Hrs Showing, 72hp. Yanmar Turbo Diesel Engine, Electric Start, Hydrostatic Transmission, 4WD, 29x12.50-15NHS Front Tires, 23x10.50-12NHS Rear Tires, Hydraulic Down Assist, 16' Width, LCD Display, Hybrid Drive System, 20 Acres Per Hour, SN: 313000157