I don't want to have to buy a sub harness or tach. I just need three of these pins that fit into the plug that goes into the tach. The pins I need are in the first image, connected to the orange wire.
Perhaps an electronics supply house can identify it. It should have a name of some kind. Maybe you can email one on the internet with the picture you posted. Just like the Deutsch and other connectors, you can find them if you know what they are called in the industry.