I 'm looking for a used K582S 23 hp horizontal shaft. This is for my Bolens HT23. It also was used in JD400, I believe, and some others, I think Simplicity. If you have one and would like to contact me about it, I'd appreciate it. Mine has broken rod, and I'm considering just swapping a used one into the Bolens.
Good luck finding a serviceable unit, that model has not been built for over 20 years. If the crank case, cylinders, and crankshaft are salvageable, you might find enough parts to re build it.