Searching on Jacks... for another part and stumbled accross 3 "hi temp cutout kits." I am not familiar with Kohler models so I'll describe the adds which look like they refer to model nos:
K 241-341/M10-16, M/MV 16-20 465-495F KT 17,19 K 582 $131 (instructs remove portion of head fin for...