JO2 Mild Steel 1/2" Tall O2 Oxygen Sensor Bung Port Boss Nut Fitting 18mm

DISCLAIMER!! 

We cannot be responsible for improper fitment.  

It is standard for most vehicles to use 18mm ports/plugs, however it is your responsibility to verify dimensions to make sure that this part will fit your vehicle.

High quality mild steel is a much better choice than stainless steel for O2 sensor ports and plugs, as it will not contact weld together when heated. This allows you to remove the plug and/or O2 sensor as needed.