Replacement Polaris Wideband O2 Sensor - 18mm

Replacement Polaris Wideband O2 Sensor - 18mm

Keep your engine running at peak efficiency with a high-quality replacement oxygen sensor! As an essential engine management component, the O2 sensor constantly measures exhaust gas air-fuel ratios and provides feedback to your ECU to trim fuel delivery dynamically.

Instead of bypassing or deleting a faulty sensor, replacing it with this high-precision sensor restores crisp throttle response, optimal air-fuel ratios, and peak horsepower output. Given how sensitive forced-induction engines are to fuel delivery, this sensor is a cost-effective solution compared to the costly $230+ OEM replacement—making it an ideal spare to carry in your tool kit on the trail.

Critical Visual Verification Note:

⚠️ WIDEBAND BLUE CASING REQUIREMENT: This sensor is designed ONLY for wideband O2 sensor setups. Prior to ordering, inspect your machine's existing factory oxygen sensor wiring lead to verify that it features a BLUE protective lead casing. If your sensor wiring casing is blue, this is the exact direct-fit sensor required.

Features:

• Optimum Engine Performance: Constantly monitors air-fuel ratios to allow ECU fuel trimming for optimal power, fuel economy, and engine protection.

• Cost-Effective OEM Alternative: Delivers precision sensing and fast response at a fraction of the $230+ factory dealer price.

• Essential Trail Spare: Quick drop-in replacement to solve check-engine lights, limp mode, or rich/lean conditions on the trail.

• Direct Plug-and-Play Fitment: Features factory-style connector weather seals and correct harness length for clean cable routing.

What's Included:

• (1) RPM SXS Replacement Wideband Oxygen (O2) Sensor

Fitment:

Fits 2-Seat and 4-Seat variations across the following Polaris platforms equipped with the Wideband Blue Lead Casing O2 Sensor:

• Polaris RZR Pro XP / Pro XP 4 (All Models): 2020–2026

• Polaris RZR XP Turbo / Turbo S (All Models): 2021

• Polaris RZR XP Turbo / Turbo S (Select Wideband Models): 2019–2020 (Verify blue casing prior to ordering)