Exhaust Sensor Reducers for Harley-Davidson 18 mm to 12mm 578380

Description

Exhaust Sensor Reducers for Harley-Davidson 18 mm to 12 mm 

Required when fitting a pre 2102 Exhaust to a 2012 and later model with 12 mm oxygen sensors.

This part reduces the 18 mm Oxygen sensor hole to 12 mm so later model sensors will fit.

Part Number 578380