5307947
Filler Cap
Cummins®

The Cummins 5307947 Filler Cap is a component designed for use in commercial trucks. It serves a specific function within the vehicle’s fuel system, ensuring that fuel can be added to the tank in a controlled manner while also protecting the system from contaminants and spills.

Purpose and Function

The primary role of the Cummins 5307947 Filler Cap is to facilitate the addition of fuel to the truck’s tank while maintaining the integrity of the fuel system. It allows fuel to be introduced into the tank through a designated opening, which is sealed when not in use to prevent spills and keep out debris and moisture. This part plays a role in maintaining the cleanliness and efficiency of the fuel system by minimizing the risk of contamination ¹.

Key Features

The Cummins 5307947 Filler Cap is engineered with specific features to enhance its performance and durability. Its design incorporates materials that are resistant to wear and corrosion, ensuring longevity in various operating conditions. The cap is crafted to fit securely on the fuel tank, providing a tight seal that helps maintain pressure within the tank and prevents fuel vapors from escaping into the atmosphere ².

Benefits

Using the Cummins 5307947 Filler Cap offers several advantages. It contributes to the overall integrity of the fuel system by providing a reliable seal that prevents leaks and contamination. The cap is designed for ease of use, allowing for quick and secure fueling. Additionally, it is compatible with Cummins engines, ensuring seamless integration and optimal performance within the specified systems ³.

Installation and Usage

Proper installation of the Cummins 5307947 Filler Cap is important for its effective function. It should be securely fastened to the fuel tank to ensure a proper seal. Users should follow manufacturer guidelines for installation to avoid damage to the cap or the fuel tank. When fueling, it is important to ensure that the cap is properly aligned and seated to prevent spills and ensure a secure fit ⁴.

Maintenance and Troubleshooting

Regular maintenance of the Cummins 5307947 Filler Cap is important to ensure its continued effectiveness. This includes periodic inspection for signs of wear or damage, cleaning to remove any buildup, and replacement when necessary. Common issues may include a loose fit or damage to the cap, which can be addressed by tightening the cap or replacing it if it is compromised.

Safety Considerations

When handling and maintaining the Cummins 5307947 Filler Cap, it is important to observe safety precautions to prevent accidents. This includes avoiding fuel spills by ensuring the cap is properly seated during fueling and storage. Users should also be aware of the risks of fire and explosion when working with fuel systems and take appropriate measures to mitigate these risks.

Environmental Impact

The Cummins 5307947 Filler Cap plays a role in environmental protection by helping to prevent fuel spills, which can contaminate soil and water sources. By maintaining a secure seal on the fuel tank, it also helps reduce the emission of fuel vapors into the atmosphere, contributing to lower overall emissions from the vehicle.

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 quality, Cummins serves commercial, industrial, and automotive markets worldwide. The company is committed to advancing technology and sustainability in the automotive industry, providing reliable and efficient solutions for a variety of applications.

Cummins Engine Filler Cap 5307947 Compatibility

The Cummins engine filler cap part number 5307947 is designed to fit a variety of Cummins engines, ensuring a secure and leak-free seal for the engine’s oil fill system. This filler cap is engineered to meet the specific requirements of each engine model, providing a reliable and durable solution for maintaining proper oil levels and preventing contamination.

Compatible Engines

• 6C8.3
• B6.7 CM2670 B153B
• D4.0 CM2620 D103B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F4.5 CM2620 F139B
• ISB/ISD4.5 CM2150 B119
• ISB3.9 CM2220 B107
• ISB5.9 CM2880 B127
• ISBE CM2150
• ISBE4 CM850
• ISL9 CM2150 SN
• ISL9.5 CM2880 L138
• L9 CM2670 L128B
• QSB6.7 CM2350 B105
• QSF3.8 CM2350 F107
• QSG12/X12 CM2350 G110
• QSL9 CM2350 L102
• QSX15 CM2350 X105
• Z14 CM2670 Z103B

This filler cap is compatible with a broad range of Cummins engines, including the 6C8.3, B6.7, D4.0, F3.8, F4.5, ISB/ISD4.5, ISB3.9, ISB5.9, ISBE, ISBE4, ISL9, ISL9.5, L9, QSB6.7, QSF3.8, QSG12/X12, QSL9, QSX15, and Z14 models. It ensures a precise fit for each engine, providing essential functionality for maintaining optimal engine performance.

Role of Part 5307947 Filler Cap in Engine Systems

The Part 5307947 Filler Cap is a component in the arrangement of various engine systems, particularly those involving fluid management. Its primary function is to provide a secure and sealed point of entry for the addition of fluids, ensuring that the systems operate efficiently and without contamination.

In the context of the Diesel Exhaust Fluid (DEF) system, the Filler Cap is integral to the Diesel Exhaust Fluid Tank. It allows for the safe and clean refilling of DEF, which is necessary for the operation of the Selective Catalytic Reduction (SCR) system. This system reduces nitrogen oxides (NOx) emissions by introducing DEF into the exhaust stream, where it decomposes into ammonia and carbon dioxide. The Filler Cap ensures that the DEF remains uncontaminated, which is vital for the effectiveness of the SCR system.

Additionally, the Filler Cap plays a significant role in the Doser Fluid Supply Module. This module precisely meters the DEF into the exhaust stream. A clean and secure Filler Cap prevents any impurities from entering the system, which could otherwise lead to inaccurate dosing and increased emissions.

In fuel systems, the Filler Cap is similarly important. It is part of the fuel supply arrangement, allowing for the refilling of the fuel tank. The Fuel Supply Tube connects the tank to the Pump, which pressurizes the fuel for injection into the engine cylinders. A well-sealed Filler Cap ensures that the fuel remains clean, preventing contaminants from entering the system and potentially causing damage to the Pump or injectors.

Overall, the Part 5307947 Filler Cap is a key component in maintaining the integrity and efficiency of both DEF and fuel systems within an engine. Its role in providing a secure and contamination-free entry point for fluids is fundamental to the proper functioning of these systems.

Conclusion

The Cummins 5307947 Filler Cap is a critical component for maintaining the efficiency and cleanliness of fuel systems in commercial trucks. Its design ensures a secure seal, preventing spills and contamination, and it is compatible with a wide range of Cummins engines. Regular maintenance and proper installation are essential for its effective function, contributing to the overall performance and environmental impact of the vehicle.