Need an oil sump plug temp sensor for my factory gauge?

[Funugs]

I have the factory fitted Vac and Oil Temp gauges instead of the Volt and Clock most ppl seem to have. However the oil temp gauge doesn't work at all and I found out why when I did an oil change the other day and noticed the sump plug/temp sensor wires had been ripped off. Does anyone know the part number im looking for or if a temp sensor sump plug for an aftermarket gauge will work with the factory mitsi gauge?