Haulmark Motor Coach 3301 QS Freight Liner truck for Haulmark, walk out RV 60 series. 515HP Detroit Diesel Motor. 100 kilometer twelve gear, towing capacity 37000 pounds, has four slide outs, Sleeps 6this unit is in pristine shape. For a virtual tour of a similar RV go to: http://youtu.be/IMH3ixRCz1l