If you want the Drainzit kit, I know you can get them from Northern Tool, and I wouldn't be surprised if you can pick one up at your local small engine dealer. If your CC dealer doesn't have them, call around to some other dealers and I'm sure 1 of them can hook you up with the right kit for your Kohler.
My MF came with a Drainzit--I don't know if it's factory or dealer installed--and it's nice. Oil changes are very easy, and the flexible hose makes it nice. I just pull the drain plug and stick the hose in my used oil jug; doesn't spill a drop.