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Denso 234-5727 Air / Fuel Ratio Sensor - Upstream
| Brand | Denso 234-5727 |
|---|---|
| Position | Upstream |
| Wiring Harness Length | 11.61 |
| Sensor Type | Wide-band |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Grade Type | Standard replacement |
| Product line | Air / Fuel Ratio Sensor - OE Style |
| Fits | Honda · 3 vehicles |
OE-style replacement. Precision-built for exact replacement and a first-time fit.
Wide-band sensor. Delivers accurate air-fuel ratio monitoring for dependable engine control.
Standard replacement. Built to OE standards for a direct, specific-fit solution.
Cross-references NTK 24325, 36531RPYG01 and 2345727 for the same application. See all 3.
OE-Style Air/Fuel Ratio Sensor for Honda Civic
Denso 234-5727 is an OE-style wide-band air/fuel ratio sensor built for direct replacement on select Honda Civic applications. It is engineered for a specific fit, with a 5-wire design and an 11.61-inch wiring harness length for the listed upstream locations.
For drivers searching for a 2021 Honda Civic upstream air/fuel ratio sensor or a 2018-2019 Honda Civic upstream replacement sensor, this Denso part number 234-5727 provides the correct OE-style configuration for the application.
Key Features
- Wide-band air/fuel ratio sensor for precise exhaust feedback
- Specific-fit design for listed Honda Civic upstream applications
- 5-wire construction
- 11.61-inch wiring harness length
- Standard replacement grade
- OE-style replacement built to match factory fit and function
Product Details
Denso’s Air/Fuel Ratio Sensor - OE Style line focuses on exact replacement parts for vehicles that require accurate air-fuel monitoring. This sensor is manufactured and tested to OE-level standards, with precision-built components intended to match the original sensor’s fit and electrical configuration. Part number 234-5727 is listed for 2021 Honda Civic upstream and 2018-2019 Honda Civic upstream applications, making it a direct-fit choice for owners replacing a worn or faulty sensor on those models.
This part cross-references Honda 36531RPYG01 and NTK 24325 for the same application.
Common Issues This Sensor Can Address
- Check engine light related to air/fuel ratio sensor performance
- Rough idle caused by inaccurate exhaust feedback
- Reduced fuel control from a failing upstream sensor
- Emission test failures tied to sensor response issues
- Driveability problems from incorrect air-fuel mixture readings
Installation Notes and Tips
Install this sensor in the upstream position only for the listed Honda Civic applications. Confirm connector style, wire count, and harness length before installation, and inspect the exhaust threads and wiring routing during replacement. For best results, clear diagnostic trouble codes after installation and verify proper sensor operation with a scan tool.
Quality Assurance
Denso manufactures and tests this air/fuel ratio sensor to strict OE standards for accurate replacement performance and first-time fit. The OE-style design supports factory-correct installation on the specified Honda Civic applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2021 | Honda | Civic | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2019 | Honda | Civic | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2018 | Honda | Civic | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
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