You may want to check
www.buykawasaki.com to compare the part numbers. You might also want to see if the Wiseco piston for each is the same model. If it is a different diameter, then you can surely rule it out.
You might want to check out
www.langcourt.com. I called and asked them how much it was. I was told that if it did not need to be repaired and only replated, that it was $150 (plus shipping both ways of course).
Attention he who keeps the votes, please put me down for replate and not sleeve.
An aftermarket replate is often commented as being better than the tungsten based Elctro-fusion coating from Kawasaki.
Good luck with it.