Standard Ignition NOX028 Nitrogen Oxide (NOx) Sensor - Upstream

Standard Ignition NOX028 NOx Sensor

The Standard Ignition NOX028 is a nitrogen oxide sensor for upstream exhaust monitoring on select Chevrolet and GMC trucks. It uses a female rectangular connector with 6 male blade terminals for a direct-fit electrical connection.

Key Features

• Nitrogen oxide (NOx) sensor for emission control system monitoring
• Upstream position application
• Female connector, rectangular shape
• 1 connector with 6 male blade terminals
• Standard Ignition part number NOX028

Detailed Description

Standard Ignition NOX028 is built for upstream NOx sensing on 2019-2022 Chevrolet Colorado, 2020-2022 Chevrolet Silverado 1500, 2019-2022 GMC Canyon, and 2020-2022 GMC Sierra 1500. This sensor supports exhaust aftertreatment monitoring by measuring nitrogen oxide levels before downstream treatment stages, helping the vehicle’s emission control system track operating conditions accurately. This part cross-references 12694398 for the same application.

What It Helps Address

• NOx sensor fault codes related to upstream exhaust monitoring
• Emission control warning lights tied to sensor signal issues
• Incorrect nitrogen oxide readings from a failing sensor
• Drivability concerns caused by emission system faults
• Inspection failures related to emission monitoring errors

Installation Notes and Tips

Verify the connector style, terminal count, and upstream location before installation. Confirm fitment by year, make, model, and position for your Chevrolet Colorado, Chevrolet Silverado 1500, GMC Canyon, or GMC Sierra 1500. Inspect the harness and exhaust-side mounting point for heat damage, corrosion, or contamination before connecting the new sensor.

Quality Assurance

Standard Ignition supplies emission control components for service replacement applications. The NOX028 is listed with confirmed fitment for 2019-2022 Chevrolet Colorado, 2020-2022 Chevrolet Silverado 1500, 2019-2022 GMC Canyon, and 2020-2022 GMC Sierra 1500, upstream.