Keep closed-loop fuel control accurate with the Bosch Switching-Type Oxygen Sensor 18127 — a 4-wire, heated narrow-band O2 sensor that mounts upstream in the exhaust. It threads into the exhaust to measure oxygen in the stream and send an air-fuel-ratio signal to the ECU, helping the engine maintain stable combustion control. It's a direct-fit replacement for the listed applications, including the 2025 Can-Am Canyon, 2014-2018 Can-Am Commander 1000 DPS, 2017-2021 Can-Am Defender HD5, and hundreds more — see the Buyer's Guide tab for the full list.
Includes the wiring harness; no mounting bracket is included. Backed by a 1-year, unlimited-mileage warranty for non-commercial passenger cars and light trucks. Country of origin: United States.
What type of oxygen sensor is this?
It's a Bosch Switching-Type, 4-wire heated narrow-band O2 sensor (MPN 18127) that mounts upstream and reports the air-fuel ratio to the ECU.
Does it include a wiring harness?
Yes. The wiring harness is included. A mounting bracket is not included.
What are the thread and hex sizes?
It uses an M18-1.5 threaded fitment with a 22 mm hex, and the threads come with pre-applied conductive anti-seize for easier installation.
Will this fit my vehicle?
It's a direct-fit replacement for the applications listed in the Buyer's Guide tab, covering many Can-Am models. Check that tab to confirm your exact year and model.
When should an oxygen sensor be replaced?
Signs it may need replacing include a check-engine light, rough or unstable idle, or reduced fuel economy. Have the cause diagnosed first, since these symptoms can have other sources.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
