O2PLUG Mild Steel O2 Oxygen Sensor Hex Style Plug Fitting 18mm M18x1.5

Dimensions:    18mm Hex Plug  Head Width: 7/8" (.875")  Overall Length: 5/8" (.625")  M18x1.5  Material: Mild Steel  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.