The WA313-2917-250 is a 50/51 Series gear set sized for a 1 1/4-14 shaft, used as a power take off (PTO) hydraulic pump drive gear. It is built to mate with 50/51 Series PTO housings for driving a hydraulic pump off the transmission.Features50/51 Series gear set1 1/4-14 shaft sizePower Take Off (PTO) hydraulic pump drive gearPart number WA313-2917-250Tech SpecsShaft size: 1 1/4-14Series: 50/51 Series