AA Replacement Polaris O2 Sensor - 12mm

The Aftermarket Assassins replacement 12mm O2 sensor fits Polaris models that use the small 12mm sensor and replaces OEM part number 4016021.

Why it holds up

• High quality replacement sensor
• Keeps fuel trim working, so AA suggests replacing it rather than deleting it

Fits

• 2015 to 2021 Polaris models using the small 12mm O2 sensor
• 2015 to 2017 Polaris RZR XP 1000
• All 2016 to 2018 Polaris RZR Turbo and Turbo S
• Many 2019 to 2020 RZR Turbo models. Check sensor size before ordering.
• Various Ranger 900 and 1000 models
• All RZR S 1000, Trail S 1000 and General models
• Other Polaris models using the same 12mm sensor
• Does not fit wideband 2019 to 2021 RZR Turbo models, Pro XP or Turbo R
• Contact us before you order so we can confirm fit.

In the box

• One 12mm O2 sensor

Good to know

• Replaces Polaris OEM part number 4016021.
• A good spare to carry in case of a sensor issue on the trail.