350 Pump Three Stage Unit - Extended Studs On Top Ccw Without OB Bearing Sae 4 Bolt C 125 - 14 Spline Shaft First Stage 1-1/2 Gear Blank By Blank Housing Second Stage Bc #24Orb Thru Hole Inlet #16 Outlet For 1St Stage #16 Orb Outlet For Second Stage 1-1/2 Gear Housing Blank By Blank Third Stage Bc #20 Orb Thru Hole Inlet #16 Orb Outlet For Third Stage 3/4 Gear Housing Blank By Blank Un-Ported Pec