55 Series Pump Bi-Rotational Single Unit Sae 4 Bolt B Sec 1”-15 Spline Shaft With OB Bearing 2-1/2 Gear Width Gear Housing Blank Inlet Port Blank Blank Outlet Port Blank Port End Cover Npt #24 1-1/2 Rear Inlet Port Npt #24 1-1/2 Rear Outlet Port Extended Studs Top