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About Koso North America Aluminum Washer

Koso North America Aluminum Washer

  • Available as a set or individually
  • Weld-in O2 sensor bung allows installation of O2 sensors in any exhaust system; 18mm x 1. 5p
  • O2 sensor bung plug works with any O2 sensor bung; 18mm x 1. 5p
  • Aluminum bung plug washer fits any 18mm O2sensor bung plug.
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