O2 Sensor Port Plugs - 12 mm

The Bassani O2 Sensor Port Plugs in 12 mm let non-sensor Harley models run newer exhaust systems that have O2 sensor ports.

This is the 12 mm version of the sensor port plug, for systems whose ports are the smaller thread. Like the 18 mm plugs, they screw into the non-essential O2 sensor ports so an older non-sensor Harley can run a modern exhaust without leaving bungs open. Sold in pairs.

⚠️ VERIFY that your sensor ports are 12 mm before ordering, since Bassani also offers an 18 mm version.