O2 Sensor Bung Plug M12x1.25

Precision CNC and features our unique shallow threaded design to prevent carbon build up on the lower threads. This plug has a taper ring to insure a leak free seal. It also a copper washer which is included with each plug.

*Most cars and older motorcycle oxygen sensor's utilize the M18x1.5mm thread pitch. Newer cars/motorcycles use a smaller O2 sensor with a M12x1.25mm thread pitch.