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Cummins NOx Sensor

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Cummins NOx sensor products

These cards are pulled from current published SHR Autoparts WooCommerce products. If your OE number is not shown, send the label photo or part number for cross-reference support.

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Buyer sourcing path

Cummins NOx Sensor Sourcing Guide

Use this page to start a Cummins diesel SCR NOx sensor inquiry with OE number, engine/application context and a photo of the original sensor label.

Page scope: Cummins NOx sensors for diesel engine emission systems. For DEF header / urea tank sensor assemblies, use the Cummins DEF Header Sensor page.
Cummins NOx sensorDiesel SCROE cross referenceEngine applicationRFQ support
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Confirm before sample checkout or bulk purchase

  • OE/OEM number from the old part or diagnostic record
  • Connector shape and pin count
  • Sensor position: upstream / downstream / tank header location
  • Vehicle, engine or SCR system application
  • Quantity, destination and sample vs bulk order path

OE/OEM numbers and vehicle names are used for cross-reference and sourcing identification only. SHR Autoparts does not claim brand authorization or guaranteed fitment unless confirmed in writing for your sample, connector, voltage, position and application.

Cummins uses NOx sensors in some of its diesel engines. The location of the NOx sensor varies depending on the engine. In some engines, the NOx sensor is located in the exhaust manifold, while in other engines, it is located in the exhaust pipe.

NOx sensors are typically made of zirconium oxide, which is a semiconductor material. When NOx is present in the exhaust gas, it reacts with the zirconium oxide, causing a change in the electrical resistance of the sensor. This change in resistance is then converted into an electrical signal that is sent to the engine computer. The engine computer uses this signal to adjust the fuel injection and air intake to reduce NOx emissions.

Common Cummins NOx sensor applications

  • NOx Sensor 4326874RX – Used in the following trucks:
    • 2013-2019 ISX 15L
    • 2013-2019 ISX 45L
    • 2013-2019 ISX 55L
  • NOx Sensor 5WK96751C – Used in the following trucks:
    • 2013-2019 ISB 6.7L
    • 2013-2019 L9 8.9L
    • 2013-2019 NTA 855
  • NOx Sensor 5WK96741 – Used in the following trucks:
    • 2013-2019 ISB 6.7L
    • 2013-2019 L9 8.9L
    • 2013-2019 NTA 855
  • NOx Sensor 4326862 – Used in the following trucks:
    • 2013-2019 ISB 6.7L
    • 2013-2019 L9 8.9L
    • 2013-2019 NTA 855

Please note that this is not an exhaustive list. For more information on which Cummins trucks use NOx sensors, please consult your owner’s manual or contact a Cummins dealer.

Available Cummins Nox Sensor products

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Brand NOx Sensor Technical Reference

This diagram summarizes Cummins diesel NOx sensor sourcing points including SCR inlet / outlet monitoring, harness fitment, and part number verification before bulk replacement.

Cummins NOx sensor technical diagram showing SCR inlet outlet sensing and part number verification
Cummins NOx sensor diagram showing SCR inlet and outlet sensing positions plus part number verification notes.
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