AH232250 New Hydraulic Row Unit Deck Plate Fits John Deere Combine ModelsOne New Aftermarket Replacement Left Hand (LH) Hydraulic Row Unit Deck Plate Fits John Deere 600 Series Corn Heads This aftermarket replacement left hand hydraulic row unit deck plate is designed Fits John Deere 600 Series corn heads on early model serial numbers up to SN 745100. The deck plate mounts on the row unit and controls crop flow during harvest, working as part of the hydraulically adjusted deck plate system to guide cornstalks and minimize