Yes it is a 10 HP Kohler K 241Your Wheel Horse should have the K series engine. That engine was a real work horse and the engine used in the tractors that pull for competition seeing you can buy parts to modify them. They can get a good 50 to 60 HP out of one them. If well maintained you should get another 35 years out if it. The follow up engine is the Kohler Magnum.
Its been a good one.