Yep, I did a "search" and spent the better part of the day at the local parts houses...so now I need to ask the pros... I want to retrofit my 23 hp Kawasaki (FH680D horizontal) with an external oil cooler. This engine is on an Exmark Lazer Z. Anyone know where I might can purchase such a kit (or build it myself)? Finding the adaptor that goes on the existing oil filter plate seems to be the key piece that I need as the rest of the oil cooling kit is available on the aftermarket and I can fabricate the mounting hardware in my shop. Any info, ideas, or tips, is much appreciated! I also want to do the same thing to the hydro system...but one project at a time.