The oil sender that was on the block was some super old aftermarket unit. I replaced it with a new OEM unit. However someone had switched the terminal to match the aftermarket unit. And a cruddy terminal at that. Thankfully I knew just the cruiserhead to reach out to for the correct electrical parts.
@Coolerman not only had the parts I needed but they arrived very fast. Thank you Mark!

Super happy with this. The little things add up!
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Almost done with the new brake lines for the rear circuit. Photos coming soon.