AA Replacement Polaris o2 Sensor - 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 Fits various ranger 900 & 1000 models Fits all RZR 1000 S and General Will fit other Polaris models using the same o2 sensor, 12mm 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 Part number 115-1008