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4326869 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor
4326869 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

4326869 Genuine Cummins Nox Nitrogen Oxide Exhaust Sensor

P/N: 4326869 Manufactured by: Cummins
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00
1 in Stock
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At Line Truck Parts LLC, we are committed to providing reliable automotive parts and a transparent customer experience. Eligible parts purchased directly from our website are covered by a 2-Year Limited Warranty, giving you added confidence in your purchase. Learn More

Product Overview

The 4326869 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for Cummins diesel engine emissions system applications. This sensor measures nitrogen oxide concentration in the exhaust stream and communicates the readings to the engine control module to support SCR, DEF, and EGR system operation. 

Product Features

The 4326869 Nox Nitrogen Oxide Sensor is manufactured to Cummins factory specifications for monitoring exhaust emissions and supporting after-treatment system operation.

  • Samples exhaust gas continuously to provide the ECM with current NOx concentration data.
  • Supplies the information required for SCR system control during engine operation.
  • Assists DEF injection management by reporting measured exhaust conditions.
  • Helps identify abnormal NOx readings that may indicate emissions system faults.
  • Designed for use across multiple electronically controlled Cummins engine platforms listed in the supplied application data.
  • Manufactured as a genuine Cummins sensor for OEM exhaust emissions system integration.

Technical Specifications

Condition New
Part Number 4326869
Brand Cummins
Part Type Nox Nitrogen Oxide Sensor


Installation Notes

The 4326869 should be installed in the designated exhaust sensor location with the connector securely latched and the wiring inspected for heat damage, corrosion, or loose terminals. After installation, verify ECM communication and confirm that any active NOx, SCR, DEF, or emissions-related diagnostic codes have been addressed.

Verify part number, VIN, engine configuration, production date, emissions package, and applicable factory options before installation.