Upstream NOX Sensor Fits Chevy Silverado GMC Sierra 2500 3500 HD 6.6L 2017-2019

Upstream NOX Sensor for Chevy Silverado GMC Sierra 2500 3500 HD 6.6L 2017-2019

This upstream NOX sensor is a replacement emissions component for Chevy Silverado and GMC Sierra 2500 and 3500 HD trucks with the 6.6L engine from 2017-2019, and it measures nitrogen oxide levels in the exhaust stream to support proper SCR system operation.

Overview

This NOX sensor monitors exhaust gas before the selective catalytic reduction system on Chevy Silverado and GMC Sierra 2500 and 3500 HD models with the 6.6L engine. It sends readings to the engine computer so the emissions system can dose diesel exhaust fluid correctly. A practical replacement for 2017-2019 trucks showing sensor-related fault codes or reduced power.

Built For Performance

• Upstream position mounting to read exhaust before the SCR system
• Built for the 6.6L diesel exhaust environment
• Electrical connector designed to mate with the factory harness
• Sealed sensor body resists heat and contamination
• Direct replacement for a failed or fouled NOX sensor

Fits These Machines

• for Chevy Silverado 2500 HD 2017-2019 6.6L
• for Chevy Silverado 3500 HD 2017-2019 6.6L
• for GMC Sierra 2500 HD 2017-2019 6.6L
• for GMC Sierra 3500 HD 2017-2019 6.6L

On-The-Job Use

• Heavy duty towing and hauling
• Fleet and work truck service
• Restoring emissions system compliance after a sensor fault

Specs At A Glance

Good To Know

Q: Will this sensor clear my check engine light? A: It can resolve codes tied to a failed upstream NOX sensor, but other faults in the SCR system should be diagnosed first.

Q: Do I need to reset anything after installation? A: Some trucks require a scan tool to clear stored codes and relearn the new sensor, so check your service procedure.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.