4326768RX
Nitrogen Oxide Sensor
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$699.95 $832.94
Refundable Core Charge: $259.95

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 4326768RX Nitrogen Oxide Sensor is a component designed to monitor and control nitrogen oxide (NOx) emissions in heavy-duty trucks. Its purpose is to ensure that the truck’s emissions remain within regulatory limits, contributing to environmental protection and compliance with emissions standards 1.

Basic Concepts of Nitrogen Oxide Sensors

Nitrogen oxides (NOx) are a group of gases formed during the combustion process in diesel engines. These gases contribute to air pollution and can have adverse effects on both the environment and public health 2. Nitrogen oxide sensors play a role in monitoring NOx levels in the exhaust stream and providing data to the engine control unit (ECU) for adjustments. These sensors typically use electrochemical cells or infrared technology to measure NOx concentrations accurately 3.

Purpose of the 4326768RX Nitrogen Oxide Sensor

This Cummins part is designed to measure nitrogen oxide levels in the exhaust stream of heavy-duty trucks. It provides real-time data to the ECU, allowing for precise adjustments to the engine’s combustion process. This helps maintain optimal performance while minimizing NOx emissions, ensuring compliance with emissions regulations.

Key Features

This part features a robust design constructed from high-quality materials to withstand the harsh conditions of heavy-duty truck environments. It utilizes advanced sensor technology to deliver accurate and reliable NOx measurements. Unique attributes of this sensor include its durability, precision, and compatibility with various heavy-duty truck models.

Benefits

Using the 4326768RX Nitrogen Oxide Sensor offers several benefits. It enhances emissions control by providing accurate NOx measurements, allowing for precise adjustments to the engine’s combustion process. This results in improved engine performance and efficiency. Additionally, it helps fleet operators comply with emissions regulations, potentially avoiding penalties or fines for non-compliance. Moreover, by reducing NOx emissions, it contributes to cost savings associated with lower fuel consumption and maintenance requirements.

Installation and Integration

Proper installation and integration of the 4326768RX Nitrogen Oxide Sensor into the truck’s emissions control system are crucial for optimal performance. Recommended procedures involve locating the sensor in the exhaust stream, ensuring a secure fit, and connecting it to the ECU. Tools such as wrenches and diagnostic equipment may be required. Precautions include following manufacturer guidelines, using appropriate fasteners, and verifying sensor functionality post-installation.

Troubleshooting and Maintenance

Common issues with the 4326768RX Nitrogen Oxide Sensor may include sensor malfunctions, inaccurate readings, or communication errors with the ECU. Troubleshooting steps involve inspecting the sensor for physical damage, checking electrical connections, and performing diagnostic tests using specialized equipment. Routine maintenance tasks include inspecting the sensor for signs of wear or corrosion, cleaning the sensor housing, and calibrating the sensor according to manufacturer recommendations.

Regulatory Compliance

The 4326768RX Nitrogen Oxide Sensor plays a role in helping trucks comply with emissions regulations and standards set by governmental agencies such as the Environmental Protection Agency (EPA) and the European Union (EU). By accurately measuring NOx levels and providing data to the ECU for adjustments, it ensures that trucks meet emissions targets and avoid penalties or fines for non-compliance.

Environmental Impact

Nitrogen oxide emissions from heavy-duty trucks contribute to air pollution and climate change. Nitrogen oxide sensors like the 4326768RX play a role in reducing these emissions, thereby mitigating their environmental impact. By providing accurate NOx measurements and enabling precise adjustments to the engine’s combustion process, these sensors contribute to cleaner air quality and improved public health.

Cummins Overview

Cummins Inc. is a leading manufacturer of diesel engines, powertrains, and emissions control technologies for commercial vehicles. With a history spanning over a century, Cummins is renowned for its innovation, quality, and commitment to sustainability. The company’s mission is to power a more prosperous world by providing reliable and efficient solutions for transportation, power generation, and industrial applications. Cummins’ reputation as a trusted provider of emissions control technologies underscores its commitment to environmental stewardship and regulatory compliance.

Conclusion

In summary, the Cummins 4326768RX Nitrogen Oxide Sensor is a vital component in the emissions control system of heavy-duty trucks. Its accurate measurement of nitrogen oxide levels ensures compliance with emissions regulations, contributes to environmental protection, and enhances engine performance and efficiency. Proper installation, maintenance, and troubleshooting procedures are essential for maximizing the sensor’s effectiveness and ensuring optimal performance.


  1. Hilgers, Michael. The Diesel Engine Second Edition. Springer Nature, 2023.

  2. Sheng, Gang. Vehicle Noise, Vibration and Sound Quality. SAE International, 2012.

  3. Cummins Inc. X13 CM2670 X122B Service Manual (5504460).

RELATED PARTS
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.