when I had mine out of sled because of bolts loosening and indexing of starter being out of allignment, i disasembled mine and the only thing that looked like would wear out were the brushes. There are 4 , and a little tricky to reasemble. That being said, I know the motorcycle or quad magazines sell brushes for starters. I ended up buying some for an old honda 3 wheeler that looked similar and ended up having to grind them a little to make them work. Starts like a charm now! Just a thought if your so inclined for a little adventure. Oh, the brushes were like 10 bucks and new starter was 199 bucks. Quit the savings.