Crank shaft Rod journal in American......
Crank pin is easier to type sometimes I get lazy......
There are many terms that are not commonly used in American English.
Its not my intention to confuse but I actualy use words like Gudgeon pin in place of wrist pin depending on who I am talking too.
My spelling also leaves a lot to be desired but again its habbit. Gets worse when I default to English spelling VS American..
Output shaft is 3/4 inch but internaly these are different engines.
I am not sure if that is what you were asking....