Cat 3176 10.3 L Diesel Engine, 1745.2 Engine hrs, Engine Brake, Manual Transmission, Differential Lock, 12000 lb Front Axle, 40000 lb Rears, 52000 lb GVWR, Air Ride Cab, 58 in Flat Top Sleeper Cab, Aluminum Outer Wheels, 11R22.5 Front Tires, 295/75R22.5 Rear Tires, Air Ride Suspension, Dual Fuel Tanks