MILD STEEL O2 SENSOR BUNG — M18 X 1.5 THREAD

The Ace Race Parts brand of metric Oxygen (O2) Sensor Bungs is precision machined using solid 1018 Mild Steel bar stock and work with all standard O2 Sensors that use a M18 x 1.5 thread. This specific O2 sensor bung fitting features a Stepped design for added weld strength. Our O2 sensor bungs and bung plugs are a high quality mild steel option for custom exhausts, downpipes, and OEM repair fabrication projects.