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JohnF2015, Small Engine Technician
Category: Small Engine
Satisfied Customers: 1107
Experience:  Owner/Service Technician at S & J Small Engines
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I have a Deere zero turn mower with a 22 hp Kohler Command

Customer Question

I have a John Deere zero turn mower with a 22 hp Kohler Command .V-twin .OHV Design .Pressure Lubricaton .Hydraulic ValveLifters .Extended Service Internals Model # ***** #76517 674cc Serial #(###) ###-####that I need a replacement engine for. It has a bolt on PTO on the front of the fly wheel. It has a back end shaft approx. 1-1/16" diameter & 2-5/8" long with a1/4" key way. I would what model number would replace it to order the correct one please.
Thanks Butch
Submitted: 1 year ago.
Category: Small Engine
Expert:  JohnF2015 replied 1 year ago.

Hi, my name is***** will be assisting you.

Based on information I have found through Kohler the replacement will be a CH23S-76528. It is being shown as a direct replacement for you existing engine.

Customer: replied 1 year ago.
The replacement number you gave me is showing on several websites that it is no longer available.
Customer: replied 1 year ago.
do you know a website that I can view & purchase one from? Kohler website shows this number as being retired.
Expert:  JohnF2015 replied 1 year ago.

I found a place that indicates that they have one in stock, but only one as long as no one else places an order before you would there is a chance that you could get it. Told me by phone that they have one left in inventory. They show it to be discontinued but will still allow you to order. Also indicated last item in stock

See if any of these help you. I am going to continue to work to see if I can find anything else as well and will post back here if I find anything.

Expert:  JohnF2015 replied 1 year ago.

I have found three other engines that may work on your machine based on crankshaft size and length. They are all three made for John Deere mowers.

CH640-3134 20HP

CH680-3091 22.5HP

CH730-0169 25HP

Any one of these can be purchased through

Customer: replied 1 year ago.
Thank you. I'll check it out.
Expert:  JohnF2015 replied 1 year ago.

Let me know if you need additional assistance with this.