Front Upstream Oxygen Sensor for Honda Civic 2018-2021 2.0T
Main description
Upgrade and safeguard your Honda Civic 2018–2021 with this Front Upstream Oxygen Sensor from IWOKPHD. As the upstream (pre-cat) sensor, it continuously monitors the exhaust’s oxygen content to maintain the optimal air–fuel ratio, helping your engine deliver smooth performance, better fuel efficiency, and lower emissions. This heated, piezoelectric sensor is designed for fast warm-up and accurate readings, even on cold starts, helping you avoid drivability issues and potential catalytic converter problems caused by incorrect sensor signals.
Designed as a direct replacement for the OEM part, it carries part numbers such as 234-5727 and 36531-RPY-G01, with multiple cross-reference identifiers to ensure compatibility. This sensor is manufactured for use with Honda Civic models from 2018 to 2021 and is intended for the upstream front position. Originating in Mainland China, it’s packaged for reliable installation and long-term performance. All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.
Note: Before ordering, please check product pictures, accessories and part numbers. If you are unsure, please send us a product picture or part number before ordering to avoid incorrect orders. For a smooth purchase, read the purchase guide carefully. At intercyprus.com since 2002 — trusted for quality and reliability.
Benefits & Tips
- Direct replacement for the OEM upstream O2 sensor, helping restore proper air–fuel balance and engine performance.
- Improves cold-start response and stabilizes idle by delivering accurate oxygen readings to the engine control unit.
- Useful for diagnostics and preventive maintenance to prevent excessive fuel consumption and potential catalyst damage.
Product specifications
- Brand Name: IWOKPHD
- Sensor Type: Piezoelectric
- Type: Heating
- Scope: Upstream Front Oxygen Sensor
- Fitment/Compatibility: For Honda Civic 2018–2021
- OEM No.: 234-5727; 36531-RPY-G01
- Part Numbers: 234-5727; 36531RPYG01; 2345727; 36531 RPY G01
- Origin: Mainland China
- Warranty: 2 Year Warranty (Replacement Warranty)
Package includes:
- 1PCS
Warnings/Reminders
Before ordering, please verify product pictures, accessories and part numbers. If you are unsure, please send a product picture or part number before ordering to avoid incorrect orders. Read the purchase guide carefully and contact us if you need any assistance.
Shipping costs are non-refundable. Once your order is placed, a thank-you note with positive feedback will be sent automatically; if you do not receive it, please contact us and we will address it promptly.