
Fits 2007–2026 Honda Rancher 420, Foreman 500/520, and Rubicon 520.
Keeps your ATV running clean when it's underwater. Without an O2 delete, your ECU reads a lean condition the moment water hits the sensor and cuts power or shuts down entirely. This sensor tricks the system into holding a proper air/fuel mixture regardless of what the stock O2 sensor would otherwise report — a required piece if you're building toward real water crossings.
Guaranteed Fitment
Rancher 420: 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026
Foreman 500/520: 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026
Rubicon 520: 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026