980417 O2 sensor plug set 12mm

When you are running an aftermarket exhaust or a custom tune that doesn't require O2 sensors, you need a clean way to seal up those open bungs. This O2 sensor plug set from MCS is made from durable zinc-plated steel and is designed to fit standard 12mm x 1.25 sensor ports. These are perfect for older models using newer exhaust systems or for race applications where sensors have been deleted. Sold as a pair, these plugs provide a leak-free seal and a finished look to your headers. They fit 2009 to 2025 Harley-Davidson models equipped with stock 12mm sensor ports and correspond to OEM number 980417.