313-2920-430 is a 51 Series gear set used as a power take off (PTO) hydraulic pump drive gear. It measures 2″ 7/8″ with a 13-tooth count, sized to match the 51 Series PTO gear train. Sold by Pro Gear and Transmission.Interchanges:3132920430VD-1135M-4-20VD-1135M-430WA313-2920-430WA20-51-3120Features51 Series gear set2″ 7/8″ diameter13 tooth countPower Take Off (PTO) hydraulic pump drive gearTech SpecsDiameter: 2″ 7/8″Tooth count: 13TSeries: 51 Series