55 Series Motor Bi-Rotational Single Unit Sae 2/4 Bolt B Sec 1-1/4” Keyed Shaft With OB Bearing 2-1/4 Gear Width Gear Housing Npt #24 1-1/2 Inlet Port Npt #24 1-1/2 Outlet Port Port End Cover Npt #24 1-1/2 Rear Inlet Port Npt #24 1-1/2 Rear Outlet Port Standard Studs