2871879RX
Doser Pump
Cummins®

The Cummins 2871879RX Doser Pump is a component designed to enhance the emissions control system in heavy-duty trucks. Its purpose is to inject Diesel Exhaust Fluid (DEF) into the exhaust stream, which plays a role in reducing nitrogen oxides (NOx) emissions. This component is significant in ensuring that heavy-duty trucks meet stringent emissions regulations while maintaining efficient engine performance ¹.

Basic Concepts of Doser Pumps

A doser pump is a device used within the emissions control system of diesel engines to inject DEF into the exhaust stream. This injection facilitates the Selective Catalytic Reduction (SCR) process, where DEF reacts with NOx to convert them into harmless nitrogen and water vapor. The doser pump’s function is vital for reducing NOx emissions, which are harmful pollutants ².

Purpose of the 2871879RX Doser Pump

This Cummins part is integral to the operation of a truck’s SCR system. It precisely meters and injects DEF into the exhaust stream, where it reacts with NOx in the presence of a catalyst to form nitrogen and water. This process helps the truck meet emissions regulations by significantly reducing the amount of NOx released into the atmosphere ³.

Key Features

The 2871879RX is characterized by its robust design and construction, utilizing high-quality materials to ensure durability and reliability. It incorporates advanced technological features such as precise metering capabilities and efficient fluid delivery systems. These features contribute to its effectiveness in the SCR system.

Benefits of Using the 2871879RX Doser Pump

Utilizing this part offers several advantages. It contributes to improved emissions performance by effectively reducing NOx emissions. Additionally, it enhances engine efficiency and ensures compliance with environmental regulations, making it a valuable component for operators concerned with both performance and environmental impact.

Installation and Integration

Proper installation and integration of the 2871879RX within the truck’s emissions control system are crucial for its effective operation. This process may involve specific adjustments or configurations to ensure compatibility with the truck’s existing systems. Following manufacturer guidelines during installation helps maintain the pump’s performance and longevity.

Troubleshooting and Maintenance

Regular maintenance and timely troubleshooting are important for the optimal performance of the 2871879RX. Common issues may include blockages or leaks in the DEF delivery system. Maintenance tips include checking for DEF quality, ensuring the pump and its components are free from contaminants, and adhering to recommended service intervals for inspections and replacements.

Performance and Efficiency

The use of the 2871879RX is associated with notable performance metrics and efficiency gains. It contributes to improvements in fuel economy by enabling more efficient engine operation. Additionally, its role in the SCR system leads to significant reductions in NOx emissions, enhancing the truck’s environmental performance.

Environmental Impact

The environmental benefits of using the 2871879RX are substantial. By reducing NOx emissions, it contributes to cleaner air quality and helps mitigate the environmental impact of heavy-duty truck operations. This component plays a part in the industry’s efforts to reduce emissions and promote sustainability.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and a diverse product portfolio, Cummins is committed to advancing technology for a cleaner, more efficient world. The company’s dedication to sustainability is evident in its development of emissions control technologies like the 2871879RX.

Conclusion

The 2871879RX Doser Pump plays a significant role in enhancing the emissions control system of heavy-duty trucks. By effectively reducing NOx emissions through the SCR process, it ensures compliance with environmental regulations and contributes to improved engine efficiency and fuel economy. Regular maintenance and proper installation are key to maximizing the performance and longevity of this component, underscoring its value in promoting both operational efficiency and environmental sustainability.