Farmall 560 Hydraulic Pump Pump is open back type to use with piggy-back pump, 17 GPM rating, max PSI of 2250. Not for use in 12 GPM systems. If system is 12 GPM, use 1949296C1. For 330, 340, 460, 504, 544, 560, 606, 656, 660, 706, 756, 766, 806, 826, 856, 1026, 1066, 1206, 1256, 1456, 1466, 1468, 1566, 1586, 2504, 2544, 2606, 2656, 2706, 2756, 2826, 2856, 21026, 21256, 21456, Hydro 100. Hydraulic Pump is 17 GPM