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2520640C1 Genuine Cummins Nox Nitrogen Oxide Sensor

2520640C1 Genuine Cummins Nox Nitrogen Oxide Sensor

P/N: 2520640C1 Manufactured by: Cummins
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00
1 in Stock
Condition: New
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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 2520640C1 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for EPA13 ISX/QSX 15-liter engine applications. This Nox Nitrogen Oxide Sensor operates within the exhaust emissions control system by measuring nitrogen oxide levels in the exhaust stream and transmitting data to the engine control module for SCR, DEF, and EGR system management. 

Product Features

The 2520640C1 Nox Nitrogen Oxide Sensor is manufactured to Cummins factory specifications for exhaust emissions monitoring.

  • Measures nitrogen oxide concentration in the exhaust stream for continuous emissions feedback.
  • Transmits NOx sensor data to the engine control module for emissions system control.
  • Supports SCR operation by supplying real-time exhaust gas measurements.
  • Assists DEF dosing control using measured NOx values from the exhaust stream.
  • Provides emissions data used by the EGR system during engine operation.
  • Enables the ECM to identify emissions system faults when NOx readings are outside expected values.

Technical Specifications

Condition New
Part Number 2520640C1
Brand Cummins
Part Type Nox Nitrogen Oxide Sensor


Installation Notes

The 2520640C1 should be installed in the specified exhaust system location with the connector fully seated and the wiring inspected for damage before placing the vehicle into service. After installation, verify ECM communication 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.