Machine description: Cat C7 6 Cylinder Diesel 300 hp Engine, Allison Automatic Transmission, Differential Lock, 18000 lb Front Axle, 40000 lb Rears, 58000 lb GVWR, Aluminum Front Wheels, 315/80R22.5 Front Tires, 11R22.5 R... more info about the 2007 Sterling ACTERRA.