WA313-8217-100 is a power take off (PTO) hydraulic pump drive gear built for the 50/51 Series. It transfers drive from the PTO to the hydraulic pump, keeping the pump assembly turning in step with the take off unit. Pro Gear and Transmission stocks this part for shops servicing 50/51 Series PTO setups.Interchanges:MA-1688-17FeaturesPTO hydraulic pump drive gearPart number WA313-8217-100Designed for 50/51 Series power take off applicationsSold by Pro Gear and TransmissionTech SpecsSeries: 50/51 Series