4326864
Nitrogen Oxide Sensor
Cummins®

The Nitrogen Oxide Sensor (Part #4326864) by Cummins is a component designed to monitor 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.

Basic Concepts of Nitrogen Oxide Sensors

Nitrogen oxides (NOx) are a group of gases formed during the combustion process in diesel engines. They are produced when nitrogen and oxygen in the air combine under high temperature and pressure conditions. Nitrogen oxide sensors play a role in monitoring these emissions by measuring the concentration of NOx in the exhaust gases. This data is used to adjust the engine’s operation to minimize NOx output ¹.

Functionality of the 4326864 Nitrogen Oxide Sensor

This part operates by measuring the levels of nitrogen oxides in the exhaust stream. It is typically positioned in the exhaust system where it can accurately sample the exhaust gases. The sensor employs electrochemical technology to detect NOx levels. It generates a voltage signal proportional to the NOx concentration, which is then sent to the engine control unit (ECU) for processing.

Role in Truck Operation

In the operation of a truck, this Cummins part interacts with the ECU to provide real-time data on NOx emissions. This information allows the ECU to make adjustments to the engine’s parameters, such as fuel injection timing and exhaust gas recirculation (EGR) rates, to maintain optimal performance while meeting emissions standards.

Key Features

The 4326864 is characterized by its robust design and the use of high-quality materials to withstand the harsh conditions of the exhaust system. It incorporates advanced electrochemical technology for accurate NOx measurement and is engineered to provide reliable performance over the vehicle’s lifespan.

Benefits of Using the 4326864 Nitrogen Oxide Sensor

The use of this part offers several benefits, including improved emissions control through precise NOx measurement, enhanced engine performance by enabling the ECU to make informed adjustments, and compliance with environmental regulations, ensuring the truck operates within legal emissions limits.

Installation and Integration

Proper installation of the 4326864 into a truck’s exhaust system involves securing it in a location that allows for accurate sampling of exhaust gases. It is important to follow manufacturer guidelines to ensure correct placement and connection to the ECU. Precautions should be taken to protect the sensor from physical damage and exposure to extreme temperatures.

Troubleshooting and Maintenance

Common issues with the 4326864 may include inaccurate readings or sensor failure. Regular maintenance practices, such as inspecting the sensor for damage and ensuring it is securely mounted, can help prevent issues. Signs of sensor malfunction may include increased NOx emissions or engine performance problems, indicating the need for sensor inspection or replacement.

Regulatory Compliance and Environmental Impact

This part plays a role in helping trucks meet regulatory standards for emissions. By accurately measuring NOx levels, it contributes to reducing the environmental impact of heavy-duty trucks. Accurate NOx measurement is important for ensuring that trucks operate within the limits set by environmental regulations, promoting cleaner air and sustainable transportation.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation in diesel engine technology, Cummins is committed to developing solutions that meet the needs of customers while promoting sustainability and environmental stewardship in the automotive industry.

Cummins Nitrogen Oxide Sensor 4326864 Compatibility

The Cummins Nitrogen Oxide Sensor part number 4326864 is designed to be compatible with a variety of Cummins engines. This sensor is crucial for monitoring and reducing nitrogen oxide emissions, ensuring compliance with environmental regulations and enhancing engine performance.

Compatible Engines

• B4.5 CM2350 B135B
• B6.7 CM2350 B135B
• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• ISB/ISD4.5 CM2150 B119
• ISB4.5 CM2350 B104
• ISB6.7 CM2350 B101
• ISB6.7 CM2350 B105
• ISBE CM2150
• ISBE4 CM850
• ISF2.8 CM2220 F129
• ISF3.8 CM2220 AN
• ISL9 CM2150 SN
• ISX12 CM2350 X102
• ISX15 CM2350 X101
• ISX15 CM2350 X116B
• ISX15 CM2350 X123B
• QSB6.7 CM2350 B105
• QSF3.8 CM2350 F107
• X12 CM2350 X119B
• X15 CM2350 X116B
• X15 CM2350 X123B

This sensor is engineered to fit seamlessly into the specified engines, providing accurate readings and contributing to the overall efficiency and environmental friendliness of the engine.

Role of Part 4326864 Nitrogen Oxide Sensor in Engine Systems

The part 4326864 Nitrogen Oxide Sensor is integral to the effective operation of various engine components, particularly within the aftertreatment arrangement. This sensor is strategically positioned within the aftertreatment system to monitor the levels of nitrogen oxides (NOx) emitted by the engine.

In the aftertreatment arrangement, the nitrogen oxide sensor works in conjunction with the aftertreatment device to ensure that emissions are within regulatory limits. The sensor is mounted on a sensor bracket, which provides a stable and secure platform for accurate readings.

The data collected by the part 4326864 Nitrogen Oxide Sensor is vital for the aftertreatment system to make real-time adjustments. This ensures that the system can effectively reduce NOx emissions through processes such as selective catalytic reduction (SCR) or exhaust gas recirculation (EGR).

Overall, the integration of the part 4326864 Nitrogen Oxide Sensor enhances the efficiency and environmental compliance of the engine systems it serves.

Conclusion

The 4326864 Nitrogen Oxide Sensor by Cummins is a critical component in the management of nitrogen oxide emissions in heavy-duty trucks. Its accurate measurement capabilities, robust design, and compatibility with a wide range of Cummins engines make it an essential part for ensuring regulatory compliance and promoting environmental sustainability in the automotive industry.