Kohler Confidant to Command Pro?

[gtrotter]

I've got a 2014 Cub RZT-S commercial with the Kohler Confidant(PS-ZT730-3011). The valve covers are leaking about a drop every 5 seconds, and has some bearing noise. Sitting at 460 hours, and I'm beginning to think it is nearing the end of life. So I'm researching re-power options.
I had a 2012 version of this mower with a Command Pro, and didn't know if anyone knew of a part number for it? If I go to put a new engine in, I would like to go with the Command Pro, but can't seem to find the p/n or interchange anywhere. I seem to remember it being a CV680 or something along those lines?

Any help is appreciated.

 

[ILENGINE]

CV680-3016 may be a close match. It has a 1" crankshaft that is 3.5" long compared to your 3.22 inch crankshaft on the ZT730. The engine I mentioned has the heavy duty cyclonic air cleaner, but you would need to get a muffler since your muffler off of the ZT may not fit.