Key Features & Benefits – O2 sensor spacer straight adapter M18x1.5 40 mm
The O2 sensor spacer straight adapter M18x1.5 40 mm is a threaded extension that moves the sensor 40 mm outward from the exhaust bung. For functional compatibility, it is intended for an M18x1.5 bung and an M18x1.5 threaded O2 sensor.
It features a stainless steel body with a straight layout, which keeps installation simple when the sensor can be repositioned straight “outward”. By relocating the sensor, it can sit less directly in the main gas stream and heat exposure while still using a straightforward threaded installation.
When is this useful?
This is useful on modified exhaust systems or custom manifolds when the sensor position needs a small change due to available space, connector placement, or harness routing.
Technical specs
- Design: straight spacer/relocation adapter
- Material: stainless steel
- Male thread: M18x1.5
- Female thread: M18x1.5
- Extension: 40 mm
Selection & installation tips
- Verify threads: confirm both the exhaust bung and your sensor are truly M18x1.5.
- Check clearance: measure space for the added 40 mm length so the sensor body and connector will not hit heat shields or bodywork.
- Harness routing: ensure the cable reach is sufficient and the wiring stays away from hot surfaces in the new position.
- Thread condition: clean the threads and ensure proper seating so the joint is stable.
- Tool access: in tight areas, confirm you can safely hold the hex section for tightening.
Before installation, compare your M18x1.5 thread interface, available clearance for the 40 mm extension, and harness routing to the specs listed above so the adapter fits safely at your mounting point.
