5375480
Doser Pump
Cummins®

The Cummins 5375480 Doser Pump is a critical component in the emissions control system of commercial trucks. It is designed to inject Diesel Exhaust Fluid (DEF) into the exhaust stream, a process essential for reducing nitrogen oxide (NOx) emissions. This part helps commercial trucks meet stringent emissions regulations while maintaining engine performance ².

Basic Concepts of Doser Pumps

A doser pump, such as the Cummins 5375480, is used in diesel engines to inject DEF into the exhaust stream upstream of the Selective Catalytic Reduction (SCR) catalyst. The DEF decomposes into ammonia and carbon dioxide when heated. The ammonia then reacts with NOx in the presence of the SCR catalyst to form nitrogen and water vapor, effectively reducing harmful emissions ¹.

Purpose of the Cummins 5375480 Doser Pump

The Cummins 5375480 Doser Pump is integral to the SCR system in commercial trucks. It injects DEF into the exhaust stream at calculated intervals and quantities, controlled by the engine’s electronic control unit (ECU). The ECU monitors parameters such as engine load, speed, and exhaust temperature to determine the optimal amount of DEF needed. This ensures the SCR system operates effectively, reducing NOx emissions to compliant levels ⁴.

Key Features

The Cummins 5375480 Doser Pump is constructed from durable materials to withstand the harsh conditions of the exhaust system. It features precise metering capabilities for accurate DEF delivery and includes built-in diagnostics to monitor performance and alert the driver to any issues. The design also considers ease of installation and maintenance, enhancing its practicality in commercial truck applications ³.

Benefits of Using the Cummins 5375480 Doser Pump

Utilizing the Cummins 5375480 Doser Pump offers several advantages. It improves emissions performance by effectively reducing NOx levels, helping trucks comply with environmental regulations. The pump also enhances engine efficiency by ensuring the SCR system operates optimally. Furthermore, its use supports compliance with emissions standards, avoiding potential fines and maintaining a truck’s operational status ².

Installation and Integration

Installing the Cummins 5375480 Doser Pump involves mounting it in the designated location within the exhaust system, connecting it to the DEF supply, and integrating it with the engine’s ECU for controlled operation. It is designed to be compatible with various Cummins engine models, ensuring a seamless integration into the existing emissions control system ⁴.

Troubleshooting and Maintenance

Common issues with the Cummins 5375480 Doser Pump may include clogging, leaks, or electrical faults. Diagnostic procedures involve checking for error codes, inspecting the pump and its connections, and testing its operation. Maintenance tips include regular inspection of the pump and its components, ensuring the DEF supply is clean and free of contaminants, and following the manufacturer’s recommended service intervals ¹.

Performance and Efficiency

The Cummins 5375480 Doser Pump contributes to the overall performance and fuel efficiency of the truck by ensuring the SCR system operates effectively. This efficiency is achieved through precise DEF delivery, which optimizes the reduction of NOx emissions without adversely affecting engine performance. Data and case studies may show improvements in emissions levels and fuel consumption when the pump is correctly installed and maintained ².

Environmental Impact

The use of the Cummins 5375480 Doser Pump has positive environmental impacts. By reducing NOx emissions, it contributes to improved air quality and helps mitigate the effects of air pollution. The pump’s role in the SCR system is a key component in achieving these environmental benefits, demonstrating the importance of advanced emissions control technologies in commercial trucking ³.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for innovation and sustainability in the automotive industry. Its product portfolio includes a wide range of engines and components designed for efficiency, reliability, and environmental responsibility. Cummins’ commitment to advancing technology and reducing the environmental impact of its products underscores its leadership in the industry ⁴.

Conclusion

The Cummins 5375480 Doser Pump is a vital component in the emissions control system of commercial trucks. It ensures the precise delivery of DEF to reduce NOx emissions, contributing to environmental compliance and engine efficiency. Regular maintenance and proper installation are essential to maximize its performance and longevity.