ACDelco 55515864 GM Original Equipment Nitrogen Oxide (NOx) Sensor

The ACDelco 55515864 GM Original Equipment Nitrogen Oxide (NOx) Sensor is an exhaust gas sensor. It detects the nitrogen oxide content in the exhaust of diesel engines. It is a GM-recommended replacement for the vehicle's original component.

Key Features:

• Detects the nitrogen oxide content of the exhaust to help optimize emissions
• The engine control module (ECM) uses the sensor's information to adjust engine parameters that help reduce harmful emissions
• GM-recommended replacement for the original factory component
• Manufactured to GM OE specification for fit, form and function
• Flange mount design

A failing NOx sensor can raise emission levels and may cause a vehicle to fail an emissions test. Replacing it with a GM Original Equipment sensor helps restore proper exhaust monitoring. Also known as a NOx sensor or nitrogen oxides sensor.