It is the sender (looks new) for an electric oil pressure gauge ( not the one for the dash idiot light), and the under dash gauge I added for it is an electric gauge. Only two senders I know of is the one for the dash idiot light ,and the one for the gauge that actually shows pressure. I guess the after market under dash electric gauge uses the OEM sender!?
This is the first time is did not hook up the copperor plastic line an use a mechanical gauge!