I have a 1990 John Deere 318 that I had repowered with a 23 hp Briggs Vanguard. Noticeably more power than the 18 hp Onan that was in it. It's smoother running and quieter than the Onan was. Kohler and Honda also made repower kits for it. I chose the Vanguard for no other reason that it was readily available. Would have had to wait on the other ones. Not disappointed at all.