The WA313-2920-250 is a 50/51 Series gear set built for power take off (PTO) hydraulic pump drive applications. It features a 1 1/4-14 spline/thread configuration for mounting a hydraulic pump to a compatible 50/51 Series PTO. This gear set is sold by Pro Gear and Transmission.Features50/51 Series gear setPower Take Off (PTO) hydraulic pump drive gear1 1/4-14 configurationPart number WA313-2920-250Tech SpecsSeries: 50/51Configuration: 1 1/4-14