Mercedes-Benz OM 460 LA, 12.8L Diesel Engine, 450 Adv. Horsepower, Engine Brake, Eaton Fuller 13 Speed Manual Transmission, 210" Wheel Base, 6x4, 12,000 lb. Front Axle, 40,000 lb. Rears, 52,000 lb. GVWR, Air Ride Cab, Air Assist Front Suspension, Air Ride Suspension, Dual Exhaust, Sliding 5th Wheel, Lowbed Ramps, Sun Visor, Chrome Bumper, Air Conditioning, Cruise Control, Heated Mirrors, Dual High Back Seats, Tilt Steering Wheel, Telescopic Steering Wheel.