Machine description: Cat Diesel 300 hp Engine, 6312 Engine hrs, Allison Automatic Transmission, Differential Lock, 20000 lb Front Axle, 20000 lb Rears, 60000 lb GVWR, Aluminum Front Wheels, 425/65R22.5 Front Tires, 11R22.... more info about the 2006 Peterbilt 335.