This weld-in O2 sensor bung fits any application that uses a standard oxygen sensor, giving installers a clean, secure mounting point in the exhaust.
Specifications:
- Type: Oxygen sensor bung, weld-in style
- Material: 12L14 cold roll steel
- Thread Size: 18mm x 1.5
- Mounting: Weld-on
- Application: Universal (any O2 sensor application)
- Part Number: 534-49
Installation requires welding and a 7/8" hole drilled into the exhaust. The oxygen sensor should be mounted tip-down, at a minimum of 10 degrees from horizontal and 15 degrees from perpendicular. Sensor not included.
FAQ
Is the oxygen sensor included with this bung?
No. This is the weld-in bung only; the oxygen sensor is sold separately.
What size hole is needed for installation?
Installation requires welding into a 7/8" hole drilled into the exhaust.
What angle should the sensor be mounted at?
The sensor tip should point downward, at a minimum of 10 degrees from horizontal and 15 degrees from perpendicular.
What thread size does this bung use?
It uses an 18mm x 1.5 thread, standard for most oxygen sensors.

