4326867RX
Nitrogen Oxide Sensor
Cummins®

Introduction

The Cummins 4326867RX Nitrogen Oxide Sensor is designed to monitor nitrogen oxide (NOx) levels in the exhaust gases of heavy-duty trucks. It ensures emissions remain within regulatory limits, contributing to environmental protection and compliance with emissions standards. This sensor provides real-time data to the engine control unit (ECU), allowing for precise adjustments to engine operations ¹.

Basic Concepts of Nitrogen Oxide Sensors

Nitrogen oxides (NOx) are gases formed during the combustion process in diesel engines, contributing to air pollution and adverse effects on human health and the environment. Nitrogen oxide sensors are integral to emissions control systems, monitoring NOx levels in exhaust gases and enabling the engine to make necessary adjustments to reduce emissions ².

Purpose and Function of the 4326867RX Nitrogen Oxide Sensor

The 4326867RX Nitrogen Oxide Sensor measures the concentration of nitrogen oxides in the exhaust gases of heavy-duty trucks. It detects NOx levels and sends this information to the ECU, which uses the data to adjust various engine parameters, such as fuel injection timing and emissions control systems, to minimize NOx emissions. This sensor is crucial for maintaining optimal engine performance while adhering to emissions regulations ³.

Key Features

The 4326867RX Nitrogen Oxide Sensor features advanced technology for accurate and reliable NOx measurements. Constructed from high-quality materials, it is designed to withstand harsh conditions in heavy-duty truck applications. Its technological advancements contribute to improved sensor longevity and performance, making it a robust component in emissions control systems ⁴.

Benefits of Using the 4326867RX Nitrogen Oxide Sensor

Incorporating the 4326867RX Nitrogen Oxide Sensor into heavy-duty truck emissions control systems offers several benefits. It aids in achieving improved emissions compliance by ensuring NOx levels are kept within regulatory limits. The sensor contributes to enhanced engine performance by providing the ECU with precise data for real-time adjustments, resulting in reduced environmental impact and lower NOx emissions ⁵.

Troubleshooting and Maintenance

Common issues with nitrogen oxide sensors may include inaccurate readings or sensor failure. Troubleshooting steps involve checking for physical damage, ensuring proper installation, and verifying electrical connections. Routine maintenance practices, such as cleaning the sensor and inspecting it for wear, can help maintain optimal performance and longevity. Regular checks and timely replacements are recommended to ensure the sensor continues to function effectively ⁶.

Integration with Emissions Control Systems

The 4326867RX Nitrogen Oxide Sensor integrates seamlessly with other components of the truck’s emissions control system. It works in conjunction with selective catalytic reduction (SCR) systems and diesel particulate filters (DPFs) to monitor and control emissions. By providing real-time data on NOx levels, the sensor enables the ECU to make adjustments that enhance the efficiency of these emissions control technologies, resulting in cleaner exhaust emissions ⁷.

Regulatory Compliance and Environmental Impact

Nitrogen oxide sensors play a role in helping heavy-duty trucks meet stringent emissions regulations. By accurately monitoring NOx levels, these sensors ensure that trucks comply with environmental standards set by regulatory bodies. The 4326867RX Nitrogen Oxide Sensor contributes to reducing the environmental footprint of heavy-duty trucks by enabling precise control over emissions, thereby supporting efforts to improve air quality and protect public health ⁸.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel and natural gas engines, as well as related technologies. With a history of innovation and a commitment to sustainability, Cummins offers a comprehensive portfolio of products and services aimed at meeting the needs of customers across various industries. The company’s dedication to advancing diesel engine technology and emissions control is evident in its development of components like the 4326867RX Nitrogen Oxide Sensor ⁹.

Conclusion

The Cummins 4326867RX Nitrogen Oxide Sensor is a vital component in the emissions control systems of heavy-duty trucks. It ensures that NOx emissions are kept within regulatory limits, contributing to environmental protection and compliance with emissions standards. By providing real-time data to the ECU, this sensor enables precise adjustments to engine operations, enhancing engine performance and reducing the environmental impact of heavy-duty trucks.