Machine description: Paccar MX-13 6 Cylinder 12.9 L Diesel 455 hp Engine, 2012 US EPA Label, Requires Diesel Exhaust Fluid, Automatic Transmission, 12000 lb Front Axle, 40000 lb Rears, 52000.0 lb GVWR, Air Ride Cab, Alumi... more info about the 2014 Peterbilt 386.