O2 Sensor Port Plugs - 18 mm

The Bassani O2 Sensor Port Plugs in 18 mm let non-sensor Harley models run newer exhaust systems that have O2 sensor ports.

Newer exhaust systems come with O2 sensor ports, but older non-sensor bikes have nothing to put in them. These 18 mm plugs solve that: they screw into the non-essential sensor ports so a non-sensor Harley can run a modern system without open bungs leaking exhaust. Sold in pairs.

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