Cat C15 14.6 L Diesel 410 hp Engine, Air Conditioner, Cruise Control, Engine Brake, Eaton Fuller Manual Transmission, 12000 lb Front Axle, 40000 lb Rears, Eaton RSP40 Drive Axles, 3.55:1 Axle Ratio, 52000 lb GVWR, Air Ride Cab, 48 in Flat Top Sleeper Cab, Mixed, 11R24.5 Front Tires, 11R22.5 Rear Tires, Low Air Leaf Air Ride Suspension, 246 in Wheelbase, PTO, Hydraulic System, Air Sliding 5th Wheel, Dual Fuel Tanks