In an attempt to restore functionality to my oil pressure gauge I installed an original style (2L-TE) oil pressure sending unit on my engine. When I went to wire it up I realized that I no longer have the harness with the connector for the sending unit (shown as b1 in the diagram). I can get the connector that plugs in to the main engine bay harness, but can't find a source for the terminal that plugs on to the sending unit itself (plug 12 on the diagram). Does anyone happen to know where I could get one of those?
Here is a photo of the sending unit for reference:
Here is a photo of the sending unit for reference: