51 Series Motor Left Ccw Rotation Single Unit Sae 4 Bolt C Sec 1-1/4 Keyed Shaft With OB Bearing 2-1/2 Gear Width Dry Valve Thrust Plates Housing Split Flange 32 2 Inlet Port Split Flange #20 1-1/4 Outlet Port Port End Cover Blank Rear Inlet Port Blank Rear Outlet Port Standard Studs