Tech Tip
This won't fit on an Arco alternator. If you are using a Balmar regulator and an Arco alternator you have to improvise. Arco alternators have a bigger screw than will fit through the hole of this temp sensor. You have to use the Balmar Battery Temp sensor MC-TS-B instead. Its the same sensor but with a bigger hole. The cable will be too long and you can shorten it.