The Parker 4000 gravity wagon was manufactured through the 70's, and featured a double door construction for additional capacity and unloading flexibility. You may unload from either door, or both, by selecting a tipping side. Parker, the first family of grain handling equipment and the most trusted name in moving grain. Price start: $10800 Options: Triangle, unload direction, extensions, number stickers, wheels Extension Price: $1200 Capacity: 375 bushels/13215 liters without extensions, 475 bushels/16739 liters with extensions Features: Rear hitch, two unloading doors