A direct replacement complete engine is no longer available. The spec of 46737 uses a 47 522 71 shortblock, other specs may use a different shortblock number. This engine has a stepped shaft in it that only Gravely uses. You could also use our engine K301S-47814 12hp Kohler engine with the same shaft size on it. You may have to use minor parts off of your engine for this to work correctly.
