The WA313-3120-100 is a power take off hydraulic pump built to the 50/51 Series ZA-1603 configuration. This PTO pump mounts to a power take off unit and supplies hydraulic flow to driven equipment on the truck. Pro Gear and Transmission offers this pump as a part, referenced under the ZA-1603 designation for 51 Series pump applications.FeaturesHydraulic pumpPart number WA313-3120-10050/51 Series ZA-1603 configurationDesigned for power take off (PTO) mounted hydraulic pump applicationsTech SpecsSeries: 50/51 SeriesReference: ZA-1603