Stainless Steel Oxygen Sensor O2 Bung Fitted to Tailpipe (Each)
These bungs are designed to allow you to weld in an oxygen sensor bung for convenient fuel injection or air fuel ratio calibration.
Universal M18x1.5 thread pitch. Fits most wideband & narrow band O2 sensors. Requires welding.
Note: This part will be fitted to Hardin Marine tailpipes. These must be ordered with Hardin Marine tailpipes.