Gator 6x4 ignition switch connector

Hey guys. I've got a 6x4 deere gator, yanmar diesel engine.

My ignition switch connector has some really bad resistance at the hot crimp and is causing the ignition switch and black connector to overheat bad.

I've been searching for a replacement kit for thr black interlock thing that connects to the ignitom switch but cant find anything.

Anyone know what I should be Google searching?

Thanks