WalkerPart #: 285-1126

Walker 285-1126 Nitrogen Oxide (NOx) Sensor - Upstream
12 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$326.19Free 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, Upstream
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? See all Nitrogen Oxide (NOx) Sensor options
Walker 285-1126 Nitrogen Oxide (NOx) Sensor - Upstream
| Brand | Walker |
|---|---|
| Part Number | 285-1126 |
| Position | Genuine OE, Upstream |
| Color | Silver |
| Connector Shape | Square |
| Terminal Quantity | 4 |
| Connector Gender | Female |
| Terminal Gender | Male |
This part fits 12 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2018 | Ram | 2500 | 6.7L | L6 | Upstream | Genuine OE |
| 2018 | Ram | 3500 | 6.7L | L6 | Upstream | Genuine OE |
| 2017 | Ram | 2500 | 6.7L | L6 | Upstream | Genuine OE |
| 2017 | Ram | 3500 | 6.7L | L6 | Upstream | Genuine OE |
| 2016 | Ram | 2500 | 6.7L | L6 | Upstream | Genuine OE |
| 2016 | Ram | 3500 | 6.7L | L6 | Upstream | Genuine OE |
| 2015 | Ram | 2500 | 6.7L | L6 | Upstream | Genuine OE |
| 2015 | Ram | 3500 | 6.7L | L6 | Upstream | Genuine OE |
| 2014 | Ram | 2500 | 6.7L | L6 | Upstream | Genuine OE |
| 2014 | Ram | 3500 | 6.7L | L6 | Upstream | Genuine OE |
| 2013 | Ram | 2500 | 6.7L | L6 | Upstream | Genuine OE |
| 2013 | Ram | 3500 | 6.7L | L6 | Upstream | Genuine OE |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.