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OE Quality
60-Day Returns
Standard IgnitionPart #: NOX049
Standard Ignition NOX049 Nitrogen Oxide (NOx) Sensor - Upstream
21 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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*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
Fitment: Cadillac, Chevrolet, and GMC, Escalade, Escalade ESV, Sierra 1500, Sierra 1500 Limited, Silverado 1500, Silverado 1500 LTD, Tahoe, Yukon, and Yukon XL
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
Standard Ignition NOX049 Nitrogen Oxide (NOx) Sensor - Upstream
| Brand | Standard Ignition |
|---|---|
| Part Number | NOX049 |
| Connector Gender | Female |
| Connector Quantity | 1 |
| Connector Shape | Rectangular |
| Minimum Order Qty. | 1 |
| Terminal Gender | Male |
| Terminal Quantity | 4 |
| Terminal Type | Pin |
This part fits 21 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2023 | Cadillac | Escalade | 3.0L | L6 | Upstream | |
| 2023 | Cadillac | Escalade ESV | 3.0L | L6 | Upstream | |
| 2023 | Chevrolet | Silverado 1500 | 3.0L | L6 | Upstream | |
| 2023 | Chevrolet | Tahoe | 3.0L | L6 | Upstream | |
| 2023 | GMC | Sierra 1500 | 3.0L | L6 | Upstream | |
| 2023 | GMC | Yukon | 3.0L | L6 | Upstream | |
| 2023 | GMC | Yukon XL | 3.0L | L6 | Upstream | |
| 2022 | Cadillac | Escalade | 3.0L | L6 | Upstream | |
| 2022 | Cadillac | Escalade ESV | 3.0L | L6 | Upstream | |
| 2022 | Chevrolet | Silverado 1500 | 3.0L | L6 | Upstream | |
| 2022 | Chevrolet | Silverado 1500 LTD | 3.0L | L6 | Upstream | |
| 2022 | Chevrolet | Tahoe | 3.0L | L6 | Upstream | |
| 2022 | GMC | Sierra 1500 | 3.0L | L6 | Upstream | |
| 2022 | GMC | Sierra 1500 Limited | 3.0L | L6 | Upstream | |
| 2022 | GMC | Yukon | 3.0L | L6 | Upstream | |
| 2022 | GMC | Yukon XL | 3.0L | L6 | Upstream | |
| 2021 | Cadillac | Escalade | 3.0L | L6 | Upstream | |
| 2021 | Cadillac | Escalade ESV | 3.0L | L6 | Upstream | |
| 2021 | Chevrolet | Tahoe | 3.0L | L6 | Upstream | |
| 2021 | GMC | Yukon | 3.0L | L6 | Upstream | |
| 2021 | GMC | Yukon XL | 3.0L | L6 | Upstream |
* 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:
12686784DNX049DNX1049NOX1049
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.