Sprocket, Clean Grain/ Return Grain Elevator;H63578

Sprocket, Clean Grain/ Return Grain Elevator, to fit John Deere® 3300/4400/4420 (lower clean grain and upper and lower return grain elevator), 6600 (SN 3701 and greater upper and lower return grain elevators), 6601/6602 (upper and lower return grain elevators), 6620 (SN less than 610300 upper return grain elevator), 6622 (upper return grain elevator), 7700 (SN 2801 and greater upper return grain elevator), 7701 (upper and lower return grain elevator), 7720 (SN less than 610500 upper return grain elevator) 7721 (upper return grain elevator) series combines.Replaces JD H63578, H75980 Dim A (1)7 teethDim B (2)1.00″ bore