This tractor uses the Kohler OHV single cylinder that is no longer made and there is nothing that will directly fit it. One of the spec numbers was 23107a. Kohler discontinued this engine over 15 years ago, and it was not designed to use unleaded gasoline in which makes the engine run hotter. Kohler recommends using the K341-71179 16hp, but the muffler does come out at a different angle and you would have to do modification to make it work.
