Detroit Series 60 14 L Diesel 500 hp Engine, 2003 US EPA Label, Engine Brake, Eaton Fuller 9LL Manual Transmission, Differential Lock, Spicer Drive Axles, 2.93:1 Axle Ratio, Air Ride Cab, 60 in High Rise Sleeper Cab, Bunk Beds, Aluminum Wheels, 295/75R22.5, Air Ride Suspension, 239 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks