I contacted scag direct because my Scag dealer could not determine if the connector was serviceable. After some discussion including purchasing a new wiring harness due to the melted connector, the person at scag gave me Scag part number, 481688, which is a 8-way connector. I ordered it from the dealer and it arrived today. IT IS THE CORRECT CONNECTOR FOR THE PTO WIRES TO THE PTO SWITCH.
So, if any of you are having the same melted connecter problem on the aforementioned zero turn application, this will solve your problem. Vintageman