O2 Sensor Harness Extension and Bung Adapter - 18 mm to 12 mm
Now you can use '09 Dresser exhaust pipes on '10-'16 Dresser models, Reduces the 18 mm O2 bungs on '09 models to 12 mm O2 bungs, Uses Namz simple Plug-N-Play wiring harness technology; no cutting or splicing required, Made in the U.S.A.