I work at a non profit and we use a Super H as our marina tractor, for getting boats in and out of the water. Recently the starter drive disintegrated and I ordered a ratchet drive and some brushes/bushings figuring to freshen it up and keep going. Took it apart to find out a. the end cover with the brushes is cracked, and b. the shaft is threaded and machined to different sizes, not just one smooth shaft with a woodruff key... So I thought I'll just get a whole new unit, but it has not been so simple. I have a parts catalog (which I later realized is for H and HV but not SH) Long story long, I ended up (via Amazon) a starter for an H, a C 163 engine, but mine is a SH and a C 164 engine. The only difference I can see is that the SH has the pad terminal for the pull rod relay, and the new starter I bought has a stud terminal. Both are 2 ear mounts instead of 3 (which is what a lot of SH searches will pull up) so it SEEMS like I should be able to just put this on, wire up a push button switch with some 2 AWG cables and it should work fine. I just can't find any confirmation that this is true, and if it is not true, I want to return this starter I have before mounting it and possibly damaging it. So, can any of you tell me if these starters are mostly interchangeable? It is a 6v 10 tooth, CCW but Im not positive that is what the SH needs, and it never cross references with starters from H, M, C that all seem to work together...