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OE Quality
60-Day Returns
DensoPart #: 234-5736
Denso 234-5736 Air / Fuel Ratio Sensor - Upstream or Upstream Rear
⚙️ 14 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$168.29Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship
Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦Air / Fuel Ratio Sensor - OE Style, Upstream and Upstream Rear
🚗Fitment: Audi, A4, A6, A6 Quattro, and A7 Sportback
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? Click here for all Air / Fuel Ratio Sensor options
Denso 234-5736 Air / Fuel Ratio Sensor - Upstream or Upstream Rear
| Brand | Denso |
| Part Number | 234-5736 |
| Position | Air / Fuel Ratio Sensor - OE Style, Upstream and Upstream Rear |
| Wiring Harness Length | 14.96 |
| Sensor Type | Wide-band |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 5 |
| Grade Type | Standard replacement |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2022 | Audi | A7 Sportback | Technik | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2021 | Audi | A7 Sportback | Technik | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Audi | A4 | Select | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2020 | Audi | A6 Quattro | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style | |
| 2019 | Audi | A4 | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style | |
| 2019 | Audi | A6 Quattro | Premium | Upstream Rear | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
| 2018 | Audi | A4 | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style | |
| 2018 | Audi | A6 | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style | |
| 2018 | Audi | A6 Quattro | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style | |
| 2017 | Audi | A4 | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style | |
| 2017 | Audi | A6 | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style | |
| 2017 | Audi | A6 Quattro | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style | |
| 2016 | Audi | A6 | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style | |
| 2016 | Audi | A6 Quattro | Upstream | O.E. Quality Direct Fit Replacement Sensor; Air / Fuel Ratio Sensor - OE Style |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
06L906262D06L906262F2345736270528R0906262E
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.