Cummins ISX15, 500 HP, Engine Brake, Eaton Fuller 18-Speed, Diff Lock, 20,000 # Front Axle, 46,000 # RA, Air Ride Cab, Aluminum Wheels, 425/65R22.5 Front Tires, 11R24.5 Rear Tires, Air Lift Pusher Axle, Air Trac Air Ride Suspension, 298" Wheelbase, Dual PTO, 2012 Gretna 12T67 Aluminum Tank, 4 Compartments, PTO Driven Pump, 2 Reels w/ Mechanical Register, Lift Gate, DOT 406 Code