I need the engine numbers (model) for the Kawasaki 22HP liquid cooled. We need to get a gasket set, as we have one that is leaking coolant into the oil (this is the first thing we need to check). I was told that a gasket KIT OR a rebuild kit is not available for these, - everything will have to ordered seperately. The mower is around 4 years old, I believe. Also, how many different 22 HP Kawasaki LC's are there with the horizontal shaft? Any and all help on this will be greatly appreciated. Thanks.