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OE Quality
60-Day Returns
Denso
Air / Fuel Ratio Sensor - OE StyleDenso 234-9304 Air / Fuel Ratio Sensor - Downstream
| Brand | Denso 234-9304 |
|---|---|
| Position | Downstream |
| Wiring Harness Length | 16.34 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Grade Type | Regular |
| Product line | Air / Fuel Ratio Sensor - OE Style |
| Fits | Lexus and Toyota · 49 vehicles |
OE style. Precision-built for exact replacement and a first-time fit.
Heated sensor. Delivers fast, reliable air/fuel ratio readings.
4-wire design. Built for dependable sensor performance.
Cross-references Toyota 8946733210 for the same application. See all 1.
$186.01Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Denso OE Style Air/Fuel Ratio Sensor
Denso 234-9304 is an OE Style heated air/fuel ratio sensor built for direct replacement on specific Toyota and Lexus applications. It is engineered for exact fitment, stable signal response, and straightforward installation on downstream locations.
Compatible with select Lexus ES300h, NX250, NX350h, and RX350h models, plus Toyota Highlander, RAV4, Sienna, Venza, Camry, Avalon, Corolla, and Grand Highlander applications. The Denso OE Style line focuses on precision-built replacement parts that match factory fit and function.
- Heated air/fuel ratio sensor for downstream placement
- Specific fit design for direct replacement on listed vehicles
- 4-wire configuration
- 16.34 in. wiring harness length
- Regular grade replacement sensor
- OE Style construction for factory-style fit and signal performance
Vehicle Fitment
- Fits 2020-2024 Lexus ES300h, downstream.
- Fits 2023-2024 Lexus NX250, downstream.
- Fits 2022-2024 Lexus NX350h, downstream.
- Fits 2023-2024 Lexus RX350h, downstream.
- Fits 2024 Toyota Grand Highlander, downstream.
- Fits 2020-2024 Toyota Highlander, downstream.
- Fits 2019-2024 Toyota RAV4, downstream.
- Fits 2021-2024 Toyota Sienna, downstream.
- Fits 2021-2024 Toyota Venza, downstream.
- Fits 2019-2023 Toyota Camry, downstream.
- Fits 2019-2022 Toyota Avalon, downstream.
- Fits 2020-2022 Toyota Corolla, downstream.
- Fits 2019 Lexus ES300h, downstream.
- Fits 2018 Toyota Camry, downstream.
What This Sensor Helps Address
- Check engine light related to air/fuel ratio sensor performance
- Incorrect downstream sensor readings
- Emissions system faults tied to sensor response
- Rough or inconsistent fuel control feedback
- Failed OE-style replacement on listed Toyota and Lexus models
Installation Notes
Confirm the downstream sensor location before installation and match the connector, wire count, and harness length to the original part. This part cross-references Toyota 8946733210 for the same application. Use the vehicle’s service information to verify the exact application for your Lexus ES300h, Toyota RAV4, or Toyota Camry before replacement.
Quality Assurance
Denso manufactures and tests these sensors to OE standards, with attention to precise replacement fit and first-time installation compatibility. Part number 234-9304 is built as an OE Style sensor for the listed Toyota and Lexus applications.
This part fits 49 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2024 | Lexus | ES300h | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2024 | Lexus | NX250 | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2024 | Lexus | NX350h | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2024 | Lexus | RX350h | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2024 | Toyota | Crown | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2024 | Toyota | Grand Highlander | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2024 | Toyota | Highlander | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2024 | Toyota | RAV4 | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2024 | Toyota | Sienna | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2024 | Toyota | Venza | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2023 | Lexus | ES300h | Ultra Luxury | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2023 | Lexus | NX250 | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2023 | Lexus | NX350h | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2023 | Lexus | RX350h | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2023 | Toyota | Camry | XSE | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2023 | Toyota | Crown | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2023 | Toyota | Highlander | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2023 | Toyota | RAV4 | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2023 | Toyota | Sienna | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2023 | Toyota | Venza | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Lexus | ES300h | Ultra Luxury | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Lexus | NX250 | — | Downstream | DENSO is the O.E. Manufacturer / Direct Fit Air Fuel Ratio Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Lexus | NX350h | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Toyota | Avalon | Hybrid XSE Nightshade | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Toyota | Camry | XSE | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Toyota | Corolla | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Toyota | Highlander | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Toyota | RAV4 | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Toyota | Sienna | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2022 | Toyota | Venza | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Lexus | ES300h | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Toyota | Avalon | Hybrid XSE | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Toyota | Camry | XSE | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Toyota | Corolla | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Toyota | Highlander | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Toyota | RAV4 | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Toyota | Sienna | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Toyota | Venza | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Lexus | ES300h | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Toyota | Avalon | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Toyota | Camry | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Toyota | Corolla | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Toyota | Highlander | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Toyota | RAV4 | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2019 | Lexus | ES300h | — | Downstream | OE Style |
| 2019 | Toyota | Avalon | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2019 | Toyota | Camry | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2019 | Toyota | RAV4 | — | Downstream | OE; Air / Fuel Ratio Sensor - OE Style |
| 2018 | Toyota | Camry | — | Downstream | OE Style |
| No rows match your filter. | |||||
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Toyota — 8946733210