M12 x 1.25 O2 Sensor Bung Plug - Mild Steel

The Ace Race Parts brand of metric Oxygen (O2) Sensor Bung Plugs are precision machined using 1018 Mild Steel and work with all standard O2 Sensor Bungs that use a M12 x 1.25 thread. This specific O2 sensor bung fitting features a hex head design for easy installation and removal. Our O2 sensor bungs and bung plugs are a high quality mild steel option for custom exhausts, downpipes, and OEM repair fabrication projects.