5317270
Filler Cap
Cummins®

The Cummins 5317270 Filler Cap is a component designed for use in commercial trucks. It serves a specific purpose within the vehicle’s fuel system, facilitating the refueling process while maintaining a secure seal to prevent fuel leakage and contamination. Understanding its role and functionality is important for maintaining the efficiency and safety of the truck’s fuel system.

Basic Concepts of Filler Caps

A filler cap is a component that covers the opening of a vehicle’s fuel tank. Its primary function is to allow fuel to be added to the tank while preventing spills and contamination. A well-designed filler cap ensures that the fuel system remains sealed, which is important for maintaining fuel integrity and preventing environmental contamination. The cap typically includes a sealing mechanism that creates a barrier against external elements, ensuring that the fuel remains clean and uncontaminated ¹.

Purpose and Function of the 5317270 Filler Cap

The Cummins 5317270 Filler Cap is specifically engineered to fit the fuel systems of certain commercial trucks. It plays a role in the refueling process by providing a secure point for the fuel nozzle to connect, allowing for efficient and safe refueling. The cap’s design includes a sealing mechanism that prevents fuel from leaking out and keeps contaminants from entering the fuel tank. This ensures that the fuel remains clean, which is important for the proper operation of the engine ².

Key Features

The Cummins 5317270 Filler Cap is constructed with several key features that enhance its performance and durability. It is made from materials that are resistant to wear and environmental factors, ensuring longevity. The cap includes a robust sealing mechanism that provides a tight seal, preventing fuel leakage. Its design is tailored to fit securely on the fuel tank, ensuring that it remains in place during operation. Additionally, the cap may include features that make it easy to open and close, facilitating the refueling process ³.

Benefits

Using the Cummins 5317270 Filler Cap offers several benefits. It contributes to the integrity of the fuel system by providing a secure seal that prevents fuel leakage and contamination. The cap’s design makes it easy to use during refueling, which can save time and reduce the risk of spills. Its durability and resistance to wear and environmental factors ensure that it remains functional over time, reducing the need for frequent replacements ⁴.

Troubleshooting and Maintenance

Common issues with filler caps may include leaks or difficulty in opening. If a leak is detected, it is important to inspect the cap for damage or wear and replace it if necessary. Difficulty in opening the cap may be due to debris or corrosion around the cap’s mechanism. Regular cleaning and maintenance can help prevent these issues. To ensure the longevity and proper function of the Cummins 5317270 Filler Cap, it is important to follow the manufacturer’s guidelines for maintenance and inspection.

About Cummins

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 itself as a trusted name in the commercial vehicle industry. The company is committed to quality and innovation in manufacturing automotive components, ensuring that its products meet the high standards required for commercial use.

Cummins Engine Filler Cap Compatibility

The Cummins part number 5317270, which is a Filler Cap, is designed to fit a variety of Cummins engines. Here is a breakdown of the engines that this filler cap is compatible with:

D4.0 Series Engines

• D4.0 CM2620 D103B
• D4.0 CM2620 F137B
• D4.0 CM2620 F139B

F3.8 Series Engines

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• ISF3.8 CM2350 F109

QSF2.8 Series Engines

• QSF2.8 CM2880 F104
• QSF2.8 CM2880 F105
• QSF2.8 CM2880 F108
• QSF2.8 CM2880 F114

This filler cap is engineered to ensure a secure and leak-proof seal, maintaining the integrity of the engine’s cooling system. It is essential to use the correct filler cap for each specific engine model to ensure optimal performance and longevity.

Role of Part 5317270 Filler Cap in Engine Systems

The part 5317270 Filler Cap is an essential component in the oil fill arrangement of various engine systems. It is specifically designed to interface with the valve cover, ensuring a secure and leak-free connection.

When the filler cap is properly installed, it allows for the convenient addition of oil to the engine without any spillage. This is particularly important during routine maintenance checks and oil changes. The cap’s design also ensures that contaminants are kept out of the engine, maintaining the integrity of the oil and the overall performance of the engine.

In conjunction with the valve cover, the filler cap plays a role in managing the pressure within the crankcase. This is vital for the proper functioning of the Positive Crankcase Ventilation (PCV) system, which helps in reducing emissions and improving engine efficiency.

Furthermore, the filler cap contributes to the overall sealing arrangement of the engine. It works in tandem with other components to ensure that the engine operates within optimal parameters, providing a reliable and efficient performance.

Conclusion

The Cummins 5317270 Filler Cap is a critical component in the fuel and oil systems of commercial trucks. Its design and functionality ensure efficient refueling, maintain fuel and oil integrity, and contribute to the overall performance and longevity of the engine. Regular maintenance and proper use of this part are essential for the optimal operation of the vehicle.