Stainless Steel 18mm O2 Plug and Weld Bung

Weld-on stainless steel O2 bung with plug. Universal 18mm for most common wideband or OEM o2 sensors! Photos are for reference only, actual item may appear different.NOTE: -The included caps are now the thin flat type that requires a allen key to remove it. -The stainless o2 bungs NO LONGER HAS A STEP on the base.Universal stainless steel weld-on o2 bung, could be welded to mild-steel, steel, and stainless steel piping. Great for custom oxygen sensor placement, place it where you like to prolong the sensor life and get better accuracy reading. Always great to have a spare o2 bung for your motorcycle, cars, hot rods, and scooter so that you could mount a wideband or air/fuel ratio gauge for monitoring and tuning.