Were you find that info on serial numbers?
Odd what does your engine look like is it green? Does it look replaced?
That Kohler chart can be downloaded all over the interwebs.
The party I bought the tractor from was the 2nd owner. He told me something was done, or replaced concerning the engine when I purchased it, but he couldn't clearly remember what the original owner told him. Nothing looks wrong, everything is where it should be on it.
The binder I have came with the tractor, and has some good hand written info concerning the tractor including the engine numbers. I have almost had this a year, and haven't discovered this info until now.
Edited by stiemmy, January 15, 2017 - 12:30 PM.