Kuryakyn O2 Sensor Bung Plug, 12mm Part Number - 540

Drag Specialties 1861-0562 Plug O2 Sensor Bung 12 mm x 1.25 mm

Harley Davidson Twin Cam Exhaust 18mm to 12mm Oxygen o2 Sensor Bung Adapters

Kuryakyn 12mm O2 Sensor Bung Plug P/N: 540

Harley Davidson Twin Cam Exhaust 18mm to 12mm Oxygen o2 Sensor Bung Adapters

Drag Specialties - 1861-0562 - 12mm O2 Sensor Bung Plug

(2) Harley Davidson Twin Cam Exhaust Oxygen o2 Sensor Bung Caps Plugs 18 x 1.5mm

Bikers Choice 18mm O2 Sensor Weld-In Bung Motorcycle Street Bike 400297