SuperATV UP AND RUNNING POLARIS RZR O2 SENSORSKU: O2S P RZRT Replace Your Polaris RZR O2 Sensor The diagnosis is in: your engine keeps misfiring because your O2 sensor is corroded. Replace your faulty O2 sensor with SuperATV's Up and Running Polaris RZR O2 Sensor. It's an OEM equivalent with a more affordable price tag. Top notch sensing element Durable construction Easy to install Keeps your RZR Running Smooth Does your RZR seem sluggish? By replacing the O2 sensor, you can prevent bad fuel