Replacement For Pgp350L478Ecab1507Hbab151 350 Pump Tandem Unit Extended Studs Bottom Cw W/ OB Bearing Sae 4 Bolt C 125 -14 Splines First Stage 1-1/2 Gear Bc Sf#32 2 Inlet Sf#24 1-1/2 Outlet Second Stage 1-1/2 Gear Port End Cover Sf#32 2 Inlet Sf#24 1-1/2 Outlet On The Sides