i need the T fittings that screw into the block, i dont need the sending unit, just the fittings.. they have been discontinued by GM, anyone have these? its 2 pieces.

OR anyone know what size tube and thread size or where to get ones like it? dealers wont have them.

 

If you have the part number from GM, go to this site and do a parts search.

https://www.rockauto.com/applet3.html

 

no i dont, its # 12 and 13 on this picture

 

12 you can use a tube and elbow, tap one side of the elbow. The other you are on your own. Its basically a hex head fitting with one side shaved on an angle, and then they put a hole in the side of that. All the holes are 1/8" NPT.

Read the text on your picture. What are you trying to do?

 

well i was trying to hook up my autometer oil pressure gauge and i needed a place to hook the sending unit.. what size is that other plug with the arrow marked in yellow?

 

1/4"NPT
You can use a reducer to 1/8" if need be. Its a common fitting.
Run a tee off that, run your sender and autometer sender.