Key Features & Benefits – 45-degree lambda sensor extender adapter with mini catalyst
The 45-degree lambda sensor extender adapter with mini catalyst is a threaded spacer that changes the sensor position at a 45-degree angle and adds an integrated mini catalyst insert in the sensor’s flow path. It uses M18x1.5 male and female threads, suitable for exhaust bungs and sensors that both share the M18x1.5 thread.
The angled format is practical when an in-line spacer would clash with surrounding parts, or when you need a different sensor orientation for connector access and cable routing. The mini catalyst insert sits ahead of the sensing area, altering the local gas-flow environment around the sensor.
When is this useful?
It can be useful on modified exhaust systems where space is limited, where the sensor needs to be rotated away from nearby components, or where you want the sensor to operate with a mini catalyst insert in front of it as part of the spacer design.
Technical specs
- Design: 45-degree extender/relocation adapter
- Thread (male): M18x1.5
- Thread (female): M18x1.5
- Insert: integrated mini catalyst insert
Selection & installation tips
- Confirm both the exhaust bung and your sensor are M18x1.5 (diameter and pitch) before installation.
- Test-fit to ensure the 45-degree angle provides enough clearance for the sensor body, connector, and tool access.
- Check the mini catalyst insert does not interfere with your sensor design and that the sensor seats correctly on the sealing face.
- Plan cable routing so the harness has slack and stays away from hot surfaces and moving parts.
- Clean the threads before assembly and prevent debris from entering the sensor opening or the insert area.
Before installation, verify the M18x1.5 thread on both sides, the space impact of the 45-degree orientation, and proper sealing contact, then compare your setup to the technical specs listed above.
