dunk50 6 #1 Posted October 14, 2009 Guys I need someone that knows how to rebuild an 18hp Kohler Magnum. I thas a hole in the block cause by a rod or something that let loose inside. If I can't find someone to rebuild it or at least take a look at it then I need a used motor. If I find a used motor, am I to assume that most any horizontal shaft 18 kohler or onan will work. If not, ANYONE that comes across one that will work on a 418-A please let me know. I am not in a real hurry but need to start looking. I will be going to Portage unless something major comes up. Thanks Dunk South Bend, In Share this post Link to post Share on other sites