Hydraulic Pump Coupler (Chain Type)
CTPA-54C1067 Replacement Part to Fit:  Ford For Models: (SHERMAN LOADER PUMP DRIVE: 54B, 54C) 1" Bore Dia. / 6 Spline; 16 Tooth / #40 Chain Sprocket  Price:  $48.93  Buyers Club Price:  $44.04