Mack MP8 6 Cylinder 12.8 L Diesel 505 hp Engine, 2014 US EPA Label, Engine Coolant Heater, Engine Brake, Mack mDrive Automatic Transmission, Double Differential Locks, 5443 kg Front Axle, 18144 kg Rears, 23587 kg GVWR, Air Ride Cab, 60 in Mid Roof Sleeper Cab, Aluminum Wheels, 11R22.5, Air Ride Suspension, 217 in Wheelbase, Air Sliding 5th Wheel, Dual Fuel Tanks, Hour Meter Reads 24422