caterpillar 6 Cylinder Diesel Engine, 7-Speed Manual Transmission, 12000 lb Front Axle, 21200 lb Rears, 11R24.5 Front Tires, 11R24.5 Rear Tires, Spring Suspension, 140 in Wheelbase, PTO, Silverline 2500 gal Steel Tank, PTO Driven Pump, 7 ft 0 in, Spray Bar, Front Spray, Rear Spray, Side Spray