I have developed the well documented leak at the sump gasket that looks like it is coming out of the oil filter. I was finally able to get the cleaned up and jumped my safeties so I could actually see it running. The drip is coming down from the sump but is getting blown on the back of the filter mounting plate, then dripping down. I've researched what I need to do to get the engine off and plan on replacing the gasket and the shaft seal. Most things I've read on this caution against replacing the split alignment pin and substitute an alignment pin that doesn't have the split. The gaskets seem to be packaged without this but with an o-ring. I have found a part number for the pin but some of the pictures seem to show a solid pin and some pics still show the split. Can anyone furnish a good Kohler part number for this pin without the split? TIA.