The NOx Sensor 5802531251 is a direct replacement sensor designed for IVECO Euro 6 diesel trucks equipped with SCR aftertreatment systems. It continuously measures nitrogen oxide (NOx) levels in the exhaust stream and transmits real-time data to the engine control module. A properly functioning NOx sensor helps maintain emissions compliance, optimize DEF dosing, prevent fault codes, and avoid engine derate conditions. OEM references associated with this sensor family include 5802531251, 5802463100, 5802819743, and Vitesco AAA2053180077.

Key Features

• Direct replacement for OEM 5802531251
• Designed for IVECO Euro 6 diesel engines
• Supports SCR and AdBlue emission systems
• Accurate NOx measurement and fast response
• Helps prevent SCR and emission-related fault codes
• Plug-and-play installation

• What does the IVECO 5802531251 NOx sensor do?

  The sensor monitors nitrogen oxide emissions in the exhaust system and sends data to the engine ECU for SCR emission control.

  What are the symptoms of a failing NOx sensor?

  Common symptoms include:

  • Check Engine Light
  • SCR warning messages
  • Increased DEF consumption
  • Reduced engine performance
  • Engine derate mode

  Can a bad NOx sensor cause engine derate?

  Yes. Incorrect NOx readings can trigger emission-related fault codes that may eventually lead to engine derate mode.

  Is this sensor compatible with Euro 6 SCR systems?

  Yes, the 5802531251 sensor is designed for IVECO Euro 6 emission control systems.