Stainless Weld Bung for O2 Sensor, 1 Inch Long with Plug

Weld this stainless steel fitting into your exhaust to mount any oxygen sensor with the standard 18x1.5mm thread. The extended 1" length is designed to back the O2 sensor out of the exhaust pipe for situations where a standard short bung results in restricted exhaust flow or an overheated sensor.

Sold individually. Sensor sold separately. The included threaded plug lets you seal off the bung if you run without a sensor installed.

We also offer a Extended 1" Reach O2 Sensor Weld Bung in Mild Steel (Part No. 3878-3764).