2880396
Filler Cap
Cummins®

Introduction

The Cummins 2880396 Filler Cap is a component designed for use in commercial trucks, specifically within the fuel system. Its primary role is to provide a secure and efficient means of refueling the vehicle while maintaining the integrity of the fuel system. This part is integral to ensuring that the refueling process is both safe and effective, contributing to the overall performance and reliability of the truck ¹.

Purpose and Function

The filler cap serves a vital function in the truck’s fuel system by facilitating the refueling process. It allows fuel to be introduced into the system while preventing contaminants and debris from entering the fuel tank. Additionally, the cap helps maintain system pressure and prevents fuel vapors from escaping into the atmosphere, which contributes to both the efficiency of the fuel system and environmental protection ².

Key Features

The Cummins 2880396 Filler Cap is constructed from durable materials that are resistant to corrosion and wear, ensuring longevity and reliable performance. Its design includes features such as a secure locking mechanism to prevent accidental opening and a gasket that provides a tight seal to maintain system integrity. These characteristics enhance the cap’s ability to withstand the rigors of commercial truck operation ³.

Benefits

Utilizing the Cummins 2880396 Filler Cap offers several advantages. It enhances the security of the fuel system by providing a robust barrier against external elements. The design of the cap also simplifies the refueling process, making it user-friendly. Furthermore, its durable construction ensures long-term reliability, reducing the need for frequent replacements.

Installation and Compatibility

Proper installation of the filler cap is crucial for its effective function. It should be securely fastened to ensure a tight seal and to prevent fuel leaks. Compatibility with various Cummins engines and fuel systems is an important consideration, ensuring that the cap fits correctly and functions as intended within the specific system it is designed for.

Maintenance and Troubleshooting

Regular maintenance of the filler cap is recommended to ensure optimal performance. This includes checking for signs of wear or damage and ensuring that the gasket remains intact and functional. Common issues with filler caps may include difficulty in opening or closing, which can often be resolved by cleaning the cap and ensuring that it is properly aligned during installation.

Safety Considerations

When handling and installing the filler cap, it is important to follow safety guidelines to prevent accidents. This includes ensuring that the truck is turned off and that static electricity is discharged before refueling to avoid the risk of sparks. Additionally, adhering to safe refueling practices, such as not smoking near the fuel source and using approved fuel containers, is crucial for compliance with industry standards and for personal safety.

Environmental Impact

The use of filler caps in commercial trucks plays a role in minimizing environmental impact. Proper maintenance and usage of the cap can help reduce fuel spills and emissions by ensuring that the fuel system remains sealed and that fuel vapors are contained. This contributes to a cleaner environment and supports efforts to reduce the carbon footprint of commercial transportation.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins serves customers in approximately 190 countries and territories through a network of more than 600 company-owned and independent distributor facilities and more than 7,200 dealer locations. The company’s product range includes engines for on-highway, off-highway, and stationary applications, as well as related technologies that increase fuel efficiency and reduce emissions.

Cummins Engine Filler Cap Compatibility

The Cummins part number 2880396, which is a filler cap, is designed to fit a variety of Cummins engines. This filler cap is essential for maintaining the integrity of the engine’s cooling and fuel systems by preventing contaminants from entering and ensuring proper pressure levels. Below is a detailed breakdown of the engines that this filler cap is compatible with, grouped by engine series for clarity.

CM2350 Series Engines

• B4.5 CM2350 B129B
• B6.7 CM2350 B135B
• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• ISB4.5 CM2350 B104
• ISB6.7 CM2350 B101
• QSB6.7 CM2350 B105
• QSF3.8 CM2350 F107
• QSX15 CM2350 X105
• ISX12 CM2350 X102
• ISX12/ISX11.9 CM2250
• ISX15 CM2350 X101

CM2620 Series Engines

• D4.0 CM2620 D103B
• F3.8 CM2620 F137B
• F4.5 CM2620 F139B

CM2250 Series Engines

• ISB6.7 CM2250
• ISC8.3 CM2250
• ISX15 CM2250

CM2220 Series Engines

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

CM2350 X105 Series Engines

• X15 CM2350 X116B

CM2350 L102 Series Engines

• QSL9 CM2350 L102

This filler cap is engineered to ensure a secure fit and effective sealing, which is critical for the longevity and performance of the engines listed. Proper installation of this part is crucial to avoid leaks and maintain the engine’s operational efficiency.

Role of Part 2880396 Filler Cap in Engine Systems

The Part 2880396 Filler Cap is an essential component in the operation and maintenance of various engine systems, particularly those involving aftertreatment processes. Its primary function is to facilitate the secure and efficient filling of the doser fluid supply module, which is integral to the operation of the aftertreatment system.

Integration with Aftertreatment Arrangement

In the aftertreatment arrangement, the Filler Cap ensures that the doser fluid supply module is properly filled without leaks. This is important for maintaining the correct fluid levels necessary for the doser pump to function effectively. The doser pump relies on a consistent supply of fluid to inject into the exhaust stream, enhancing the performance of the catalytic converter and overall aftertreatment device efficiency.

Contribution to Aftertreatment Device Performance

The Filler Cap plays a supportive role in the aftertreatment device by ensuring that the doser fluid supply module is always ready for operation. This consistent fluid supply allows the doser pump to deliver the precise amount of fluid required to reduce harmful emissions. The efficiency of this process directly impacts the performance of the aftertreatment system, making the Filler Cap an important component in the sequence.

Ensuring System Integrity in Aftertreatment System

Within the aftertreatment system, the Filler Cap contributes to system integrity by preventing contaminants from entering the doser fluid supply module during the filling process. This helps maintain the purity of the doser fluid, which is essential for the catalytic converter to function optimally. Clean and uncontaminated fluid ensures that the aftertreatment system can effectively convert harmful exhaust gases into less harmful emissions.

Supporting Catalytic Converter Efficiency

The Filler Cap indirectly supports the catalytic converter by ensuring that the doser fluid supply module is always filled to the appropriate level. This consistent fluid level allows the doser pump to inject the necessary fluid into the exhaust stream, which reacts with the exhaust gases to reduce emissions. The efficiency of this process is vital for the catalytic converter to perform its role in emission reduction.

Fluid Doser System Reliability

In the fluid doser system, the Filler Cap is responsible for maintaining the fluid levels in the doser fluid supply module. This ensures that the doser pump has a reliable source of fluid to inject into the exhaust stream. Reliable fluid dosing is essential for the effective operation of the aftertreatment system, contributing to lower emissions and improved engine performance.

Conclusion

The Cummins 2880396 Filler Cap is a critical component in the fuel and aftertreatment systems of commercial trucks. Its design and functionality contribute to the safety, efficiency, and environmental performance of the vehicle. Proper installation, maintenance, and understanding of its role in the engine system are essential for maximizing the benefits of this part.