M18x1.5 Exhaust Lambda Boss Nut Weld on 304 Stainless O2 Oxygen Sensor Bung Tool
O2 Oxygen Sensor Bung+Plug Kit. 1x Oxygen Sensor Nut Bung Stepped. -Easy to weld on. -Designed to adding a O2 sensor in any place you need. 1x Oxygen Sensor Plugs. -Universal fit for STANDARD OXYGEN SENSORS with M18 X 1.5 Thread.