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OE Quality
60-Day Returns
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WalkerPart #: 285-1018
Walker 285-1018 Nitrogen Oxide (NOx) Sensor - Downstream
⚙️ 8 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$321.53Free 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
📦Genuine OE, Downstream
🚗Fitment: Ram, 2500 and 3500
🔄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 Nitrogen Oxide (NOx) Sensor options
Walker 285-1018 Nitrogen Oxide (NOx) Sensor - Downstream
| Brand | Walker |
| Part Number | 285-1018 |
| Position | Genuine OE, Downstream |
| Color | Gray |
| Finish | Matte |
| Finish | Metallic |
| Connector Color | Gray |
| Terminal Type | Spade |
| Connector Shape | Oblong |
| Terminal Quantity | 4 |
| Connector Gender | Female |
| Connector Gender | Male |
| Terminal Gender | Male |
This part fits 8 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2024 | Ram | 2500 | 6.7L | L6 | Downstream | Genuine OE |
| 2024 | Ram | 3500 | 6.7L | L6 | Downstream | Genuine OE |
| 2023 | Ram | 2500 | 6.7L | L6 | Downstream | Genuine OE |
| 2023 | Ram | 3500 | 6.7L | L6 | Downstream | Genuine OE |
| 2022 | Ram | 2500 | 6.7L | L6 | Downstream | Genuine OE |
| 2022 | Ram | 3500 | 6.7L | L6 | Downstream | Genuine OE |
| 2021 | Ram | 2500 | 6.7L | L6 | Downstream | Genuine OE |
| 2021 | Ram | 3500 | 6.7L | L6 | Downstream | Genuine OE |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.