Standard Ignition NOX003 Nitrogen Oxide (NOx) Sensor - Downstream

OE-Style NOx Sensor for Downstream Emissions Control

The Standard Ignition NOX003 is a direct-fit nitrogen oxide sensor built for downstream emissions monitoring on select 2015 Chevrolet and GMC heavy-duty applications. Its plug-and-play design helps simplify replacement while maintaining the proper fit, form, and function expected from an OE-style sensor.

• Direct-fit OE replacement for straightforward installation
• Plug-and-play design with no additional programming required
• Downstream NOx sensor for emissions system monitoring
• Female connector with square housing
• 6-pin male terminals for the specified application
• Extensively tested for performance and reliability

Fitment Details

Compatible with 2015 Chevrolet Express 2500, downstream; 2015 Chevrolet Express 3500, downstream; 2015 Chevrolet Silverado 2500 HD, downstream; 2015 Chevrolet Silverado 3500 HD, downstream; 2015 GMC Savana 2500, downstream; 2015 GMC Savana 3500, downstream; 2015 GMC Sierra 2500 HD, downstream; and 2015 GMC Sierra 3500 HD, downstream.

Standard Ignition NOX003 is engineered as an OE replacement nitrogen oxide sensor for downstream placement, making it a practical choice for restoring emissions-system feedback on Chevrolet Silverado 2500 HD, Silverado 3500 HD, Express vans, and GMC Sierra and Savana heavy-duty models. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Fault codes related to downstream NOx sensor performance
• Incorrect nitrogen oxide readings in the emissions system
• Emissions monitoring issues on diesel-equipped heavy-duty vehicles
• Driveability concerns caused by sensor signal problems
• Replacement needs for a worn or failed OE-style NOx sensor

Installation Notes

Verify connector shape, terminal count, and downstream placement before installation. The NOX003 uses a female connector, square housing, and 6-pin male terminals, so matching the original sensor configuration is important for proper fitment on the intended Chevrolet and GMC applications. Because it is a plug-and-play replacement, no additional programming is required after installation.

Quality Assurance

Standard Ignition states that this sensor undergoes extensive testing and validation to support proper performance and reliable operation. As a global manufacturer, the company maintains quality control throughout the production process.