15 Engine rated at 525HP and an 18 Speed Fuller transmission. GVW is 80,000 LBS Front 18,740 rears 46,000. It has a 5th wheel slide under the bed, and in 2024 it received a New Fuel Pump, a new Starter, Clutch, Radiator and Motor Mounts. This truck is in Very Good condition! It has been serviced and maintained on a regular schedule and all records are available. This is a working truck ready to go!