18mm o2 sensor plug set zinc Thread size:12mm x 1.25 available in black or chrome

available in black or chrome finishes

housing and mounting collar diameter 15⁄16” (23

- Short circuit proof

replacing existing taillight

18mm o2 sensor plug set zinc Thread size:12mm x 1.25 available in black or chromeVance & Hines O2 Sensor Plug Set Motorcycle Exhaust Sensor plug set is for plugging unused sensor plug holes in your exhaust system. Made from zinc plated steel, perfect for non O2 sensor equipped models with sensor equipped exhaust systems or when O2 sensors are no longer needed. Features: Constructed from high quality zinc plated steel Sold in pairs 18mm is generally used on Harley models 2006 and earlier 12mm is generally used on Harley models 2007