- OR -

Store Parts O2 Bungs

18mm - 12mm O2 Bung Adapter

18mm-12mm Bung Adapter

  • 18mm-12mm Bung Adapter
  • 18mm-12mm Bung Adapter

18mm - 12mm O2 Bung Adapter

Made from high-quality stainless steel, this bung adapter screws into an 18mm bung for use with some 12mm narrow-band O2 sensors.  Outside thread is M18x1.5 and the inside thread is M12x1.25.

  • Go from 18mm to 12mm bung size
  • Outside Thread: M18 x 1.5
  • Inside Thread: M12 x 1.25

$15.95
#6957007

Add to Cart

Hook me up! Get 10% off your next exhaust or equipment order.

Sign up for the HMF Community and receive the following perks:

  • 10% off your next exhaust or equipment purchase
  • Details about upcoming HMF products
  • Exclusive product giveaways
Sign Me Up!

No, thanks. I'll pay full price for my powersports needs.