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OE Quality
60-Day Returns
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DensoPart #: 234-8003
Denso 234-8003 Oxygen Sensor
⚙️ 27 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$128.91Free 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
📦Oxygen Sensor - OE Style, Downstream Right, Downstream Rear, Upstream Right, and Downstream Left
🚗Fitment: Lexus and Toyota, Highlander, RX350, RX350L, RX450h, and RX450hL
🔄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 Oxygen Sensor options
Denso 234-8003 Oxygen Sensor
| Brand | Denso |
| Part Number | 234-8003 |
| Position | Oxygen Sensor - OE Style, Downstream Right, Downstream Rear, Upstream Right, and Downstream Left |
| Wiring Harness Length | 25.39 |
| Sensor Type | Heated |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Connector Gender | Female |
| Thread Diameter | 0.709 |
| Mounting Type | Threaded |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Submodel | Drive Type | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2022 | Lexus | RX350 | F Sport | Downstream Right | OE; Oxygen Sensor - OE Style | ||
| 2022 | Lexus | RX350L | Downstream Left | OE; Oxygen Sensor - OE Style | |||
| 2022 | Lexus | RX450h | F Sport | Downstream Left | OE; Oxygen Sensor - OE Style | ||
| 2022 | Lexus | RX450hL | Downstream Right | OE; Oxygen Sensor - OE Style | |||
| 2021 | Lexus | RX350 | F Sport | Downstream Right | OE; Oxygen Sensor - OE Style | ||
| 2021 | Lexus | RX350L | Downstream Left | OE; Oxygen Sensor - OE Style | |||
| 2021 | Lexus | RX450h | F Sport | Downstream Left | OE; Oxygen Sensor - OE Style | ||
| 2021 | Lexus | RX450hL | Downstream Right | OE; Oxygen Sensor - OE Style | |||
| 2020 | Lexus | RX350 | F Sport | Downstream Rear | OE; Oxygen Sensor - OE Style | ||
| 2020 | Lexus | RX350L | Downstream Rear | OE; Oxygen Sensor - OE Style | |||
| 2020 | Lexus | RX450h | F Sport | AWD | Upstream Right | OE; Oxygen Sensor - OE Style | |
| 2020 | Lexus | RX450hL | Downstream Right | OE; Oxygen Sensor - OE Style | |||
| 2019 | Lexus | RX350 | Downstream Right | OE Style | |||
| 2019 | Lexus | RX350L | Downstream Right | Fits Japan built vehicles; OE Style | |||
| 2019 | Lexus | RX450h | F Sport | Downstream Right | OE; Oxygen Sensor - OE Style | ||
| 2019 | Lexus | RX450hL | Downstream Right | Fits Japan built vehicles; OE Style | |||
| 2019 | Toyota | Highlander | GAS | Downstream Right | OE Style | ||
| 2018 | Lexus | RX350 | Downstream Right | OE Style | |||
| 2018 | Lexus | RX350L | Downstream Right | OE Style | |||
| 2018 | Lexus | RX450h | Downstream Right | OE Style | |||
| 2018 | Lexus | RX450hL | Downstream Right | Fits Japan built vehicles; OE Style | |||
| 2018 | Toyota | Highlander | Downstream Right | OE Style | |||
| 2017 | Lexus | RX350 | Downstream Right | OE Style | |||
| 2017 | Lexus | RX450h | Downstream Right | OE Style | |||
| 2017 | Toyota | Highlander | Downstream Right | OE Style | |||
| 2016 | Lexus | RX350 | Downstream Right | OE Style | |||
| 2016 | Lexus | RX450h | Downstream Right | 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:
24794
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.