Cat 6 Cylinder Diesel Engine, Engine Brake, Spicer 1- Speed Manual Transmission, 52000lb GVWR, Aluminum Wheels, Air Ride Suspension, 242 in Wheelbase, Pintle Hitch, 50 Hp Industrial Boiler, 10 kW Onan Generator, Forced Air Steam Heater, 4000 L Steel Tank, 1977 Industrial Boiler 210,000 BTU.