The WA312-2917-730 is a gear set built for the 20/30/31 Series power take off, used to drive a hydraulic pump off the transmission. It features a 1 3/4 in. gear configuration matched to this PTO series.Features20/30/31 Series PTO gear set1 3/4 in. gear sizeDrives hydraulic pump off PTOPart number WA312-2917-730Tech Specs20/30/31 Series1 3/4 in. gear