/live/media/SI/SI_NOX055_Fro.jpg)
Standard Ignition NOX055 Nitrogen Oxide (NOx) Sensor - Downstream
| Brand | Standard Ignition NOX055 |
|---|---|
| Position | Downstream |
| Connector Gender | Female |
| Connector Quantity | 1 |
| Connector Shape | Rectangular, oval |
| Terminal Gender | Female |
| Terminal Quantity | 6 |
| Terminal Type | Pin |
| Fits | Chevrolet and GMC · 4 vehicles |
NOx sensor. Measures nitrogen oxide levels for emission control.
Female connector. Single rectangular or oval connector with 6 pin terminals.
Cross-references Standard Ignition NOX055, 55501907 and DNX055 for the same application. See all 4.
Downstream NOx Sensor for GM Diesel Emissions Control
Standard Ignition NOX055 is a downstream nitrogen oxide sensor for select 2018-2019 Chevrolet Equinox and 2018-2019 GMC Terrain applications. It uses a female 6-pin terminal layout with a rectangular/oval connector shape for a direct-fit emissions system repair.
Key Features
- Nitrogen oxide (NOx) sensor for emission control system monitoring
- Downstream position application
- Female connector with 1 connector interface
- 6 female pin terminals
- Rectangular and oval connector shape
- Standard Ignition part number NOX055
Detailed Description
Standard Ignition NOX055 is built for downstream NOx sensing on 2018-2019 Chevrolet Equinox and 2018-2019 GMC Terrain models. As part of the emission control system, the sensor helps the vehicle’s control strategy monitor nitrogen oxide levels after exhaust treatment, supporting accurate emissions feedback and system operation. This part cross-references DNX055 for the same application.
Common Issues This Part Can Address
- Check engine light related to NOx sensor performance
- Emission system fault codes tied to downstream exhaust monitoring
- Incorrect nitrogen oxide readings from a failing sensor
- Reduced emissions system efficiency caused by sensor signal problems
- Inspection or emissions test failures linked to sensor faults
Installation Notes and Tips
Verify the downstream sensor location before replacement and confirm connector style, terminal count, and terminal gender match the original unit. For 2018-2019 Chevrolet Equinox and 2018-2019 GMC Terrain, compare the existing harness connection and exhaust routing before installation. Clear diagnostic trouble codes after installation and recheck system operation.
Quality Assurance
Standard Ignition supplies OE-style replacement emission control components for service applications. NOX055 is engineered to match the listed fitment and connector configuration for direct replacement use on the specified vehicles.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2019 | Chevrolet | Equinox | 1.6L | L4 | Downstream | — |
| 2019 | GMC | Terrain | 1.6L | L4 | Downstream | — |
| 2018 | Chevrolet | Equinox | 1.6L | L4 | Downstream | — |
| 2018 | GMC | Terrain | 1.6L | L4 | Downstream | — |
| No rows match your filter. | ||||||