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Earls Oxygen Sensor Weld Fitting (Weld Bung) - Stainless Steel

Oxygen Sensor Weld Fitting (Weld Bung) - Stainless Steel

Part # SSOXY018ERL Be the first to write a review
Estimated shipping date: 01/27/2022
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Earl's O2 Sensor Weld Fittings are the ideal way to add a sensor when converting to EFI or adding a wideband Air/Fuel gauge for tuning carbureted engines. The weld fittings are available in steel or stainless steel to match your exhaust system. The thread size is 18mm x 1.5 and fit most Factory and aftermarket O2 sensors (GM, Ford, Chrysler & most import vehicles). Features are recessed step for easy installation by drilling a hole in the exhaust system and welding the fitting in place. Sold individually


  • Fits Most O2 Sensors - GM, Ford, Chrysler & Most Import vehicles
  • Thread Size: 18mm x 1.5
  • Choose from Steel or Stainless Steel Material
  • Ideal for Converting to EFI or Adding an O2 Sensor for Wide Band Air/Fuel Gauges
  • Requires Welding

About Earls

Earl's Performance Plumbing brought aviation fluid transfer technology to the automotive performance market over five decades ago. With the most extensive line of plumbing products available, you can count on Earl's from start to finish.

Adapter TypeOxygen Sensor
Brand Earls
Emission Code5
MaterialStainless Steel
Product TypeOxygen Sensor O2 bung
Thread Size18mm x 1.5
Type of ComponentOxygen Sensor Bung
Part NumberSSOXY018ERL

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Requires welding and a hole to be drilled into the exhaust. Oxygen sensors need to be mounted with the tip pointed on a downward angle. A minimum of 10 degrees from horizontal and 15 degrees from perpendicular is recommended.

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    Some parts are not legal for use in California or other states with similar regulations.