xyz - this has a two-port pump. I've been saving SQ parts for a long time, my 1954 set came from a SQ dealer in Rockford, IL and he loaded me up with plenty of parts and I've found some at a local dealer (now gone) and ebay, etc. Since there were millions of these machines in commercial use, I've had good luck finding things like centerpost kits, solenoids (for the older domestic washers) seals, etc.