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A2C89788900-02 Genuine Cummins Nox Nitrogen Oxide Sensor
A2C89788900-02 Genuine Cummins Nox Nitrogen Oxide Sensor

A2C89788900-02 Genuine Cummins Nox Nitrogen Oxide Sensor

P/N: A2C89788900-02 Manufactured by: Cummins
$389.00 - $389.00
$389.00
$389.00 - $389.00
$389.00
1 in Stock
Condition: New
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Product Overview

The A2C89788900-02 is a genuine Cummins Nox Nitrogen Oxide Sensor designed for Cummins diesel engine emissions system applications. This sensor operates within the exhaust after-treatment system by measuring nitrogen oxide levels in the exhaust stream and sending data to the ECM for SCR, DEF, and EGR system control. 

Product Features

The A2C89788900-02 Nox Nitrogen Oxide Sensor is manufactured to Cummins factory specifications for exhaust emissions measurement and engine control feedback.

  • Measures NOx concentration in the exhaust stream for emissions system monitoring.
  • Sends exhaust gas data to the ECM for after-treatment control decisions.
  • Supports SCR operation by providing sensor input for emissions reduction strategy.
  • Helps the DEF dosing system respond to measured exhaust conditions.
  • Provides feedback used during EGR and exhaust after-treatment system operation.
  • Allows the ECM to monitor NOx-related faults when readings are outside expected operating range.

Technical Specifications

Condition New
Part Number A2C89788900-02
Brand Cummins
Part Type Nox Nitrogen Oxide Sensor


Installation Notes

The A2C89788900-02 should be installed in the correct exhaust sensor location with the connector fully seated and the harness inspected for heat damage, corrosion, or loose terminals. Confirm ECM communication after installation and clear any active NOx, SCR, DEF, or emissions-related diagnostic codes before returning the equipment to service.

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