Aftermarket Assassins Polaris O2 Sensor Replacement – 12mm

• Fits 2015-2021 models using the small 12mm O2 sensor from Polaris
• Replaces OEM part number 4016021
• Fits RZR XP 1000 2015-2017
• Fits RZR Turbo & Turbo S all 2016-2018, and many 2019-2020 models (Check size before purchasing for 2019-2020 models)
• Does not fit wideband 2019-2021 RZR Turbo models or Pro XP/Turbo R
• Fits various ranger 900 & 1000 models
• Fits all RZR S 1000, Trail S 1000 and Generals
• Will fit other Polaris models using the same 12mm O2 sensor.
• Excellent high quality sensor replacement
• The O2 sensor will trim fuel, so instead of deleting it we suggest replacing it for optimum running and peak performance.
• If your RZR has this sensor this is a great spare to carry if you run into an issue on the trail.