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Denso 234-5056 Air / Fuel Ratio Sensor - Upstream, Upstream Front or Upstream Left
| Brand | Denso 234-5056 |
|---|---|
| Position | Upstream |
| Connector Gender | Male |
| Grade Type | Regular |
| Sensor Type | Heated |
| Thread Diameter | 0.711 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Wiring Harness Length | 10.51 |
| Product line | OE Style |
| Fits | Acura, Honda, and Hyundai · 57 vehicles |
OE style replacement. Precision-built for exact replacement and a first-time fit.
Heated sensor. Built to deliver accurate air/fuel ratio readings.
Specific fit. Made to match the part’s original application.
Cross-references Honda 36531RN0A01, Honda 36541R9SJ01 and Honda 36541RN0A01 for the same application. See all 11.
Denso OE Style Air/Fuel Ratio Sensor 234-5056
Denso 234-5056 is an OE Style heated air/fuel ratio sensor built for direct replacement on select Honda, Acura, and Hyundai applications. It is engineered for exact fit and consistent signal performance, making it a practical choice for upstream sensor service on vehicles such as the Honda Accord, Pilot, Ridgeline, and Acura MDX.
Key Features
- OE Style replacement air/fuel ratio sensor for emission control service
- Heated sensor design for faster operating temperature
- Specific fit for direct replacement on listed applications
- 5-wire configuration with male connector
- Wiring harness length: 10.51
- Thread diameter: 0.711
- Built and tested to OE standards for replacement accuracy
Product Details
Denso 234-5056 is a heated air/fuel ratio sensor designed to match original equipment fit and function on upstream locations. The OE Style line focuses on precise replacement dimensions and first-time fit, which is important when servicing emissions-related sensors on Honda Accord, Honda Pilot, Honda Ridgeline, Acura MDX, Acura RLX, Acura TLX, Acura RDX, and select Hyundai Accent applications. This part cross-references NTK 24372 and 27041 for the same application.
Use this sensor when you need a direct-fit replacement that follows the original connector style, wire count, and mounting dimensions. The Denso 234-5056 is intended for vehicles that require a specific-fit upstream air/fuel ratio sensor, including 2012-2019 Honda Pilot, 2013-2017 Honda Accord, and 2014-2020 Acura MDX applications.
Vehicle Fitment
- Fits 2014-2020 Acura MDX, Upstream
- Fits 2014-2020 Acura RLX, Upstream
- Fits 2019-2020 Acura TLX, Upstream
- Fits 2015-2017 Acura TLX, Upstream
- Fits 2013-2017 Acura RDX, Upstream
- Fits 2012-2019 Honda Pilot, Upstream
- Fits 2020 Honda Pilot, Upstream Rear
- Fits 2017-2019 Honda Ridgeline, Upstream
- Fits 2012-2014 Honda Ridgeline, Upstream
- Fits 2013-2017 Honda Accord, Upstream
- Fits 2017 Honda Accord, Upstream Front, Excluding California
- Fits 2013-2016 Honda Accord, Upstream, Excluding California
- Fits 2013-2015 Honda Crosstour, Upstream
- Fits 2014-2015 Honda Odyssey, Upstream
- Fits 2016-2017 Honda Odyssey, Upstream Left
- Fits 2019 Hyundai Accent, Upstream
What It Helps Address
- Check engine light related to upstream air/fuel ratio sensor faults
- Rough idle or unstable fuel trim readings
- Delayed sensor response during closed-loop operation
- Emissions test failures tied to sensor performance
- Incorrect air/fuel mixture feedback to the engine control system
Installation Notes
Confirm the connector style, wire count, and sensor position before installation. This is a specific-fit sensor, so match the vehicle year, make, model, and upstream location exactly to the listed applications. For best results, inspect the harness routing and connector condition before installing the replacement sensor.
Quality Assurance
Denso manufactures and tests this OE Style sensor to strict original-equipment standards. The design emphasizes accurate replacement dimensions and consistent fit for emissions service on the listed Honda, Acura, and Hyundai applications.
| Year | Make | Model | Submodel | Transmission | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2020 | Acura | MDX | — | — | — | Upstream | OE Style |
| 2020 | Acura | RLX | — | — | GAS | Upstream | OE Style |
| 2020 | Acura | TLX | — | — | — | Upstream | OE Style |
| 2020 | Honda | Pilot | LX | — | — | Upstream Rear | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2019 | Acura | MDX | — | — | — | Upstream | OE Style |
| 2019 | Acura | RLX | — | — | GAS | Upstream | OE Style |
| 2019 | Acura | TLX | — | — | — | Upstream | OE Style |
| 2019 | Honda | Pilot | — | — | — | Upstream | OE Style |
| 2019 | Honda | Ridgeline | — | — | — | Upstream | OE Style |
| 2019 | Hyundai | Accent | Essential | — | — | Upstream | OE Style |
| 2018 | Acura | MDX | — | — | — | Upstream | OE Style |
| 2018 | Acura | RLX | — | — | GAS | Upstream | OE Style |
| 2018 | Honda | Pilot | — | — | — | Upstream | OE Style |
| 2018 | Honda | Ridgeline | — | — | — | Upstream | OE Style |
| 2017 | Acura | MDX | — | — | — | Upstream | OE Style |
| 2017 | Acura | RDX | — | — | — | Upstream | OE Style |
| 2017 | Acura | RLX | — | — | GAS | Upstream | OE Style |
| 2017 | Acura | TLX | — | — | — | Upstream | OE Style |
| 2017 | Honda | Accord | — | Manual | — | Upstream | OE Style |
| 2017 | Honda | Accord | — | Automatic | — | Upstream Front | Excluding California.; OE Style |
| 2017 | Honda | Odyssey | — | — | — | Upstream Left | OE Style |
| 2017 | Honda | Pilot | — | — | — | Upstream | OE Style |
| 2017 | Honda | Ridgeline | — | — | — | Upstream | OE Style |
| 2016 | Acura | MDX | — | — | — | Upstream | OE Style |
| 2016 | Acura | RDX | — | — | — | Upstream | OE Style |
| 2016 | Acura | RLX | — | — | GAS | Upstream | OE Style |
| 2016 | Acura | TLX | — | — | — | Upstream | OE Style |
| 2016 | Honda | Accord | — | Manual | — | Upstream | OE Style |
| 2016 | Honda | Accord | — | Automatic | — | Upstream | Excluding California.; OE Style |
| 2016 | Honda | Odyssey | — | — | — | Upstream Left | OE Style |
| 2016 | Honda | Pilot | — | — | — | Upstream | OE Style |
| 2015 | Acura | MDX | — | — | — | Upstream | OE Style |
| 2015 | Acura | RDX | — | — | — | Upstream | OE Style |
| 2015 | Acura | RLX | — | — | — | Upstream | OE Style |
| 2015 | Acura | TLX | — | — | — | Upstream | OE Style |
| 2015 | Honda | Accord | — | Manual | — | Upstream | OE Style |
| 2015 | Honda | Accord | — | Automatic | — | Upstream | Excluding California.; OE Style |
| 2015 | Honda | Crosstour | — | — | — | Upstream | OE Style |
| 2015 | Honda | Odyssey | — | — | — | Upstream | OE Style |
| 2015 | Honda | Pilot | — | — | — | Upstream | OE Style |
| 2014 | Acura | MDX | — | — | — | Upstream | OE Style |
| 2014 | Acura | RDX | — | — | — | Upstream | OE Style |
| 2014 | Acura | RLX | — | — | GAS | Upstream | OE Style |
| 2014 | Honda | Accord | — | Manual | — | Upstream | OE Style |
| 2014 | Honda | Accord | — | Automatic | — | Upstream | Excluding California.; OE Style |
| 2014 | Honda | Crosstour | — | — | — | Upstream | OE Style |
| 2014 | Honda | Odyssey | — | — | — | Upstream | OE Style |
| 2014 | Honda | Pilot | — | — | — | Upstream | OE Style |
| 2014 | Honda | Ridgeline | — | — | — | Upstream | OE Style |
| 2013 | Acura | RDX | — | — | — | Upstream | OE Style |
| 2013 | Honda | Accord | — | Manual | — | Upstream | OE Style |
| 2013 | Honda | Accord | — | Automatic | — | Upstream | Excluding California.; OE Style |
| 2013 | Honda | Crosstour | — | — | — | Upstream | OE Style |
| 2013 | Honda | Pilot | — | — | — | Upstream | OE Style |
| 2013 | Honda | Ridgeline | — | — | — | Upstream | OE Style |
| 2012 | Honda | Pilot | — | — | — | Upstream | OE Style |
| 2012 | Honda | Ridgeline | — | — | — | Upstream | OE Style |
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