I've got the remains of three walk behind gravely tractors, the ag tires are foam filled. The 5660 has a bad swifty and a bent handlebar. I bought the Professional 12 just to get a crankshaft, the rest of the engine was pretty nice. I think all the planetaries are good. The 12 hp with the white hood had a 10hp Kohler with the largest mouse hotel I've ever seen. So I do have some Kohler engine parts. The complete Kohler 12hp in the photo (I pulled the pan and rod/crank is super nice), I'm debating sell or keep? Also have a couple 50" mower decks. 3/8" thick 30" mower blade. I'm NOT an experienced seller usually just buy and shelf extras. Feel free to insult or suggest prices. Located in NE Indiana pretty close to both Michigan and Ohio. I don't ship or venmo.