stainless O2 sensor bung plug M18 x 1.5 on a white background
O2 sensor delete plug for exhaust systems with text indicating it threads into a standard M18 x 1.5" weld-in bung on a white background.
exhaust O2 plug with 8mm allen head and text &
weld in bung plug for custom exhaust systems on a white background
stainless O2 sensor bung plug M18 x 1.5 on a white background
O2 sensor delete plug for exhaust systems with text indicating it threads into a standard M18 x 1.5" weld-in bung on a white background.
exhaust O2 plug with 8mm allen head and text &
weld in bung plug for custom exhaust systems on a white background

O2 Sensor Bung Plug - Stainless

SKU: 525900

$4.95
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The Stainless O2 Bung Plug is a simple, clean solution for sealing off unused O2 sensor ports in your exhaust system. Whether you've completed a tune and no longer need an O2 sensor or you're running a custom setup, this plug prevents exhaust leaks and eliminates the issue of an open bung.

Made from durable stainless steel, this plug is built to handle heat, corrosion, and harsh environments. It threads into a standard M18 x 1.5 weld-in bung and features an 8mm Allen head for quick and secure installation. It’s a must-have finishing piece for any clean exhaust build.

Includes

  • (1) Stainless O2 Sensor Bung Plug
Specifications
  • Material: Stainless steel
  • Thread Size: M18 x 1.5
  • Head Type: 8mm Allen (hex socket)
  • Corrosion resistant
  • High-temperature capable
  • Reusable design
Fitment
  • Standard M18 x 1.5 O2 sensor bungs
  • Custom exhaust systems
  • Off-road and race vehicles
  • LS and LT engine exhaust setups
  • Any application deleting or not using an O2 sensor
Tech Insight

Leaving an open O2 bung in your exhaust system will cause exhaust leaks, improper airflow, and potential performance issues. This plug provides a proper seal to maintain exhaust integrity after removing or deleting an O2 sensor.

For best results, pair this plug with a properly welded M18 x 1.5 bung. Stainless plugs are preferred in performance and off-road applications due to their ability to resist corrosion and withstand repeated heat cycles without seizing.