18mm O2 Sensor Socket Kit for Harley-Davidson

Sensor connector set, made of galvanized steel.
Fits 18mm x 1.50 sensor plugs.
Required with HD 86 and up models equipped with non-O2 (oxygen) sensor that have an exhaust system installed with stock threaded sensor bung holes.
Can also be used on HD models when O2 sensors are no longer needed.