2871880
Doser Pump
Cummins®

The Cummins 2871880 Dosing Pump is a component designed to enhance the emissions control system of commercial trucks. Its purpose is to inject Diesel Exhaust Fluid (DEF) into the exhaust stream, which aids in reducing nitrogen oxides (NOx) emissions. This part is significant in the operation of commercial trucks as it helps meet stringent emissions regulations while maintaining engine performance ¹.

Basic Concepts of Dosing Pumps

A dosing pump is a device that precisely delivers DEF into the exhaust system of a diesel engine. It functions within a truck’s emissions control system by injecting DEF into the Selective Catalytic Reduction (SCR) system. The basic principle of its operation involves the pump drawing DEF from a tank and injecting it into the exhaust stream upstream of the SCR catalyst. This process converts NOx into harmless nitrogen and water vapor ².

Role of the 2871880 Dosing Pump in Truck Operation

The Cummins 2871880 Dosing Pump plays a specific role in the overall operation of a commercial truck by ensuring the effective delivery of DEF to the SCR system. It interacts with other components of the emissions system, such as the DEF tank, SCR catalyst, and engine control unit (ECU), to maintain optimal emissions control. The pump’s precise dosing helps in achieving the desired reduction of NOx emissions without compromising engine performance ³.

Key Features of the 2871880 Dosing Pump

The Cummins 2871880 Dosing Pump is characterized by several key features that enhance its performance. Its design includes a robust construction that ensures durability under varying operating conditions. The pump is made from high-quality materials to withstand the corrosive nature of DEF. Unique characteristics such as its precise dosing capabilities and efficient operation contribute to its effectiveness in emissions control.

Benefits of Using the 2871880 Dosing Pump

The use of the Cummins 2871880 Dosing Pump offers several benefits. It contributes to improved emissions control by ensuring the accurate delivery of DEF to the SCR system. This results in enhanced engine performance as the pump helps maintain optimal combustion efficiency. Additionally, fleet operators may experience potential cost savings due to the pump’s reliability and efficiency, reducing the need for frequent maintenance and replacements.

Installation and Integration

When installing and integrating the Cummins 2871880 Dosing Pump into a truck’s emissions system, it is important to consider compatibility with various truck models and engine types. Proper installation involves ensuring the pump is correctly connected to the DEF tank and the exhaust system. It is also crucial to follow manufacturer guidelines to ensure the pump operates within specified parameters and integrates seamlessly with the truck’s ECU.

Maintenance and Troubleshooting

Routine maintenance of the Cummins 2871880 Dosing Pump is important to ensure optimal performance and longevity. Regular checks should include inspecting the pump for any signs of wear or damage, ensuring the DEF lines are free from obstructions, and verifying the pump’s electrical connections. Common issues that may arise include dosing inaccuracies or pump failures, which can often be troubleshooted by checking the pump’s settings, DEF quality, and system pressures.

Regulatory Compliance

The Cummins 2871880 Dosing Pump plays a role in helping trucks meet emissions regulations and standards. Compliance with these regulations is important in the commercial trucking industry to reduce environmental impact and avoid penalties. The pump’s precise dosing capabilities ensure that trucks can operate within the permissible emissions limits, contributing to a cleaner environment.

Cummins Overview

Cummins Inc. is a leading manufacturer of diesel engines and related technologies, including dosing pumps. With a history of innovation and quality, Cummins has established itself as a trusted name in the industry. The company’s commitment to developing advanced emissions control solutions, such as the 2871880 Dosing Pump, underscores its role in promoting sustainable and efficient diesel engine operations.

Compatibility with Cummins Engines

The Dosing Pump part number 2871880, manufactured by Cummins, is designed to integrate seamlessly with a variety of Cummins engines. This part is crucial for maintaining the proper fuel delivery and emissions control systems within these engines. Below is a detailed overview of the engines with which this dosing pump is compatible:

CM2350 Series Engines

• B4.5 CM2350 B135B
• B6.7 CM2350 B135B
• F3.8 CM2350 F128C
• ISB4.5 CM2350 B104
• ISB6.7 CM2350 B101
• QSB6.7 CM2350 B105
• QSF3.8 CM2350 F107
• QSL9 CM2350 L102
• X15 CM2350 X116B

These engines, part of the CM2350 series, benefit from the precise fuel dosing capabilities provided by the 2871880 Dosing Pump. This ensures optimal performance and adherence to emission standards.

CM2250 Series Engines

• ISB6.7 CM2250 B101
• ISB4.5 CM2250 B104
• ISX12 CM2250 X102
• ISX12/ISX11.9 CM2250
• ISX15 CM2250
• ISX15 CM2350 X101

The CM2250 series engines also rely on the 2871880 Dosing Pump for accurate fuel dosing. This part is integral to the engine’s ability to manage fuel delivery efficiently, ensuring smooth operation and compliance with environmental regulations.

CM2220 Series Engines

• ISF2.8 CM2220 F129
• ISF3.8 CM2220 AN

The CM2220 series engines, including the ISF2.8 and ISF3.8 models, utilize the 2871880 Dosing Pump to maintain precise fuel dosing. This is essential for the engines’ performance and emission control systems.

Other Models

• ISC8.3 CM2250
• ISL9 CM2250

The ISC8.3 and ISL9 models also incorporate the 2871880 Dosing Pump. This ensures that these engines receive the correct fuel dosing, contributing to their overall efficiency and emission control.

By integrating the 2871880 Dosing Pump into these engines, Cummins ensures that each engine operates at peak performance while meeting stringent emission standards. This compatibility highlights the versatility and reliability of the dosing pump in various engine configurations.

Role of Part 2871880 Dosing Pump in Engine Systems

The part 2871880 Dosing Pump is integral to the operation of several key components within modern engine systems, particularly those designed to meet stringent emissions standards. Its primary function is to precisely deliver a measured amount of fluid, typically a reducing agent like Diesel Exhaust Fluid (DEF), into the exhaust stream. This process is essential for the effective operation of the aftertreatment arrangement.

Within the aftertreatment arrangement, the Dosing Pump works in conjunction with the aftertreatment device, which often includes a Selective Catalytic Reduction (SCR) system. The SCR system relies on the introduction of DEF to convert harmful nitrogen oxides (NOx) into harmless nitrogen and water vapor. The Dosing Pump ensures that the DEF is injected at the correct rate and timing, optimizing the chemical reaction within the catalyst.

The aftertreatment system as a whole benefits from the consistent and accurate dosing provided by the Dosing Pump. This system is designed to reduce emissions to comply with environmental regulations, and the Dosing Pump plays a significant role in maintaining the efficiency and reliability of this system.

Additionally, the Dosing Pump interacts with the fluid doser, which is responsible for the atomization and distribution of the DEF within the exhaust stream. Proper dosing is essential for uniform distribution, which in turn ensures that the SCR catalyst operates at peak efficiency. The fluid doser relies on the precise control offered by the Dosing Pump to achieve the desired outcome.

In summary, the part 2871880 Dosing Pump is a key component that ensures the effective functioning of the aftertreatment arrangement, aftertreatment device, aftertreatment system, and fluid doser. Its role in delivering the correct amount of DEF is fundamental to the reduction of emissions and the overall performance of the engine system.

Conclusion

The Cummins 2871880 Dosing Pump is a critical component in the emissions control system of commercial trucks. It ensures the precise delivery of DEF to the SCR system, contributing to reduced NOx emissions and compliance with environmental regulations. The pump’s robust design, precise dosing capabilities, and compatibility with various Cummins engines make it an essential part of modern diesel engine technology.