Front Nox Sensor Black 22790-EZ40A for Nissan TITAN XD 5.0L 5.6L V8 2016-2019

Front Nox Sensor for Nissan TITAN XD 5.0L 5.6L V8 2016-2019

This front NOx sensor is an emissions component that measures nitrogen oxide levels in the exhaust stream on Nissan TITAN XD 5.0L and 5.6L V8 trucks from 2016 through 2019, carrying reference number 22790-EZ40A.

Overview

This front NOx sensor monitors exhaust gas composition so the engine management system can regulate emissions and dosing strategy. It is a replacement part for TITAN XD owners facing NOx-related fault codes or failed emissions tests. The sensor installs in the front exhaust position and works with the factory connector and control module.

Built For Performance

• Black housing with sealed sensor element for exhaust environment protection
• Direct-fit electrical connector for plug-and-play installation
• Reference number 22790-EZ40A for easy cross-checking
• Designed for front exhaust position mounting
• Built to withstand high exhaust temperatures and vibration

Fits These Machines

• for Nissan TITAN XD 5.0L V8 2016-2019
• for Nissan TITAN XD 5.6L V8 2016-2019

On-The-Job Use

• Resolving NOx sensor fault codes on the front exhaust position
• Emissions testing preparation and repair
• Replacing a failed or slow-response original sensor
• Exhaust system service on TITAN XD V8 trucks

Specs At A Glance

Good To Know

Q: Do I need to clear codes after installing this NOx sensor? A: Yes, scan and clear stored codes after installation, then complete a drive cycle so the system can relearn. Confirm no new faults return before an emissions test.

Q: Can a bad NOx sensor affect fuel dosing? A: A failed front NOx sensor can disrupt the emissions control strategy and trigger derate or warning messages. Replacing it restores correct sensor feedback to the control module.

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