I purchased this pump that was with an electric motor mounted to a board years ago. I only wanted the motor so here's the pump, barely used for sale. One of the hose barbs is broken. The threads going into the unit appear to be 1/4' pipe thread.
serial # reads: 69-193394, shaft is 7/16". Unit is about 4" wide, stands 5" tall at the body, 6" from butt end to tip of shaft. Cast iron construction. I Just tested it with my drill press and it sucks and pumps!