John Deere 6 Cylinder Upper Engine, Straight Down Outriggers, Rear Outriggers, Detroit Series 60 6 Cylinder 14.0 L Ultra Low Sulfur Diesel 515 hp Engine, 2006 US EPA Label, 3171 Engine hrs, Air Conditioner, Cruise Control, Engine Brake, Eaton Fuller FRO-16210C 10-Speed Manual Transmission, 20000 lb Front Axle, 36000 lb Rears, Meritor RT-46-160 Drive Axles, 4.10:1 Axle Ratio, 66000.0 lb GVWR, Air Ride Cab, 425/65R22.5 Front Tires, 11R22.5 Rear Tires, Dual Steering Boxes, TufTrac Suspension, 280 in Wheelbase, Braden Winch 2 Drum Drawworks