I need to get a bung and a plug for an O2 sensor for some custom exhaust work. Anyone tell me where I can order these from? I beleive someone not to long ago was machining plugs and selling them. Are you still around?

 

JEGS. com-weld in 02 sensor fitting #76460406 $8.69 Garfinkle has made a few.

 

Go to your trusted muffler shop. They have the O2 bung.
For plug, I used Oil Pan Plug M18 1.5 pitch.
It works very well.
Basically the O2 bung is metric M18 1.5mm pitch.

reza

 

Does anyone know if the Jegs bung listed above is stainless steel? Does it need to be stainless when welding to a stainless dp?