I have a Dig-it 188T(Ingersoll 6018) that i bought less the engine,It came stock with a 18hp Onan engine,I am going back with a Kohler Magnum 18,From what I can tell the hydro pump had a bracket that mounted to the engine and its missing.
I ordered a bracket off eBay that I thought might work,but it doesn't line up with any of the holes in the block,nor is it deep enough. If anyone has any ideas let me know,I dont have the shop facilities that some of you do or the tools(welder and such).