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4326874 Genuine Cummins Nox Sensor For ISC ISL 8.9L

4326874 Genuine Cummins Nox Sensor For ISC ISL 8.9L

P/N: 4326874 Manufactured by: Cummins
$399.00 - $399.00
$399.00
$399.00 - $399.00
$399.00
1 in Stock
Condition: New
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Product Overview

The 4326874 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 ISC 8.9L and ISL 8.9L engine applications. This sensor operates within the exhaust emissions control system by measuring NOx levels in the exhaust stream and sending data to the engine control module for SCR, DEF, and EGR system control.

Product Features

The 4326874 Nox Nitrogen Oxide Sensor is manufactured to Cummins factory specifications for exhaust emissions monitoring.

  • Reads nitrogen oxide levels from the exhaust stream for emissions system feedback.
  • Sends NOx data to the engine control module for after-treatment system control.
  • Supports SCR system response based on exhaust gas readings.
  • Helps regulate DEF/AdBlue dosing through sensor input.
  • Provides emissions data used by the EGR system during engine operation.
  • Helps the ECM identify abnormal NOx readings that may trigger emissions-related fault codes.

Technical Specifications

Condition New
Part Number 4326874
Brand Cummins
Part Type Nox Nitrogen Oxide Sensor


Installation Notes

The 4326874 should be installed in the specified exhaust system location with the connector seated securely and the wiring inspected for corrosion or damage. Confirm ECM communication after installation and clear any stored emissions-related diagnostic trouble codes if required.

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