3047386
Filler Cap
Cummins®

Introduction

The Cummins 3047386 Filler Cap is a component designed for use in commercial trucks. It serves a specific role within the vehicle’s fuel system, ensuring the secure containment of fuel within the tank. This part is integral to maintaining the efficiency and safety of the truck’s operation by preventing fuel loss and contamination ¹.

Purpose and Function

The primary role of the Cummins 3047386 Filler Cap is to seal the fuel tank, thereby preventing fuel from escaping and contaminants from entering. It operates by creating an airtight seal when properly installed, which is vital for maintaining the integrity of the fuel system. This seal helps in preserving the quality of the fuel and ensures that the truck operates efficiently ².

Key Features

The Cummins 3047386 Filler Cap is constructed from durable materials that are resistant to the corrosive effects of fuel. Its design includes features that enhance its performance and longevity, such as a robust sealing mechanism and a secure locking system to prevent accidental opening. These characteristics contribute to the cap’s ability to withstand the rigors of commercial truck use.

Benefits

Using the Cummins 3047386 Filler Cap offers several advantages. It enhances the integrity of the fuel system by providing a reliable seal, which helps in maintaining fuel quality and preventing leaks. The cap is designed for ease of use, allowing for quick and secure refueling. Its durable construction ensures long-term reliability, reducing the need for frequent replacements.

Installation and Usage

Proper installation of the Cummins 3047386 Filler Cap is crucial for its effective operation. The installation process involves aligning the cap with the fuel tank opening and securing it in place according to the manufacturer’s instructions. Ensuring a secure fit is important to achieve a proper seal and prevent fuel loss or contamination.

Maintenance and Care

Routine maintenance of the Cummins 3047386 Filler Cap is recommended to ensure its optimal performance and longevity. This includes regular inspection for signs of wear or damage, cleaning the cap and its sealing surfaces, and replacing it if any deterioration is observed. Proper care helps in maintaining the cap’s effectiveness and the overall efficiency of the fuel system.

Troubleshooting Common Issues

Common issues with filler caps may include leaks or difficulty in opening. Troubleshooting these problems involves checking the cap’s alignment and condition, ensuring the sealing surfaces are clean and free from debris, and verifying that the cap is securely fastened. Addressing these issues promptly helps in maintaining the fuel system’s integrity.

Safety Considerations

When handling and maintaining the Cummins 3047386 Filler Cap, it is important to follow safety guidelines to avoid fuel spills and contamination. This includes using proper handling techniques, ensuring the work area is well-ventilated, and taking precautions to prevent static electricity, which can be a source of ignition near flammable fuels.

Environmental Impact

Proper usage of the Cummins 3047386 Filler Cap contributes to environmental protection by preventing fuel spills, which can contaminate soil and water sources. Additionally, by maintaining the integrity of the fuel system, the cap helps in reducing harmful emissions, contributing to a cleaner environment.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions technologies. With a commitment to innovation and quality, Cummins serves commercial truck markets worldwide, providing reliable and efficient power solutions that meet the demands of modern transportation.

Cummins Engine Part 3047386: Filler Cap Compatibility

The Cummins part number 3047386, identified as a Filler Cap, is engineered to fit seamlessly with a range of Cummins engines. This part is integral to the engine’s maintenance and operation, ensuring that the fuel or oil systems remain sealed and protected from contaminants.

Engine Compatibility

• K19 Engine Series
  • The part 3047386 is specifically designed to fit the K19 engine series. This series includes various models that are known for their robust performance and reliability in demanding applications.

Application and Importance

The filler cap plays a role in maintaining the integrity of the engine’s fuel or oil system. It prevents the ingress of dirt, moisture, and other contaminants that could compromise engine performance and longevity. Proper sealing ensures that the engine operates efficiently and maintains its optimal condition over time.

Installation and Maintenance

When installing the filler cap, it is essential to ensure that it is securely fastened to avoid leaks. Regular inspection and replacement of the filler cap, as needed, are part of routine engine maintenance practices. Cummins recommends adhering to the manufacturer’s guidelines for the replacement intervals to maintain the engine’s performance and reliability.

Compatibility Considerations

While the part 3047386 is primarily associated with the K19 engine series, it is always advisable to verify compatibility with specific engine models and configurations. Cummins provides detailed documentation and support to assist with identifying the correct parts for individual engine models.

Role of Part 3047386 Filler Cap in Engine Systems

The Part 3047386 Filler Cap is a component in the arrangement of engine systems, specifically designed to interface with the oil fill system. This cap serves as the primary access point for adding oil to the engine, ensuring that the lubrication system remains adequately filled for optimal engine performance.

In the oil fill arrangement, the filler cap is positioned at the top of the engine’s oil reservoir, commonly the oil pan or sump. Its design allows for easy removal and reinstallation, facilitating routine maintenance tasks such as oil changes. When the filler cap is removed, it provides a clear pathway for oil to be poured into the reservoir, ensuring that the oil level reaches the required mark on the dipstick.

Additionally, the filler cap plays a role in maintaining the integrity of the engine’s lubrication system. It creates a seal that prevents oil leaks and contaminants from entering the oil reservoir. This seal is vital for preserving the cleanliness and quality of the oil, which is essential for reducing friction and wear on engine components.

Furthermore, the filler cap often incorporates a breather element that allows for the release of pressure build-up within the oil reservoir. This feature is important for preventing damage to the oil pan or sump due to excessive pressure, ensuring the longevity and reliability of the engine system.

Conclusion

The Cummins 3047386 Filler Cap is a critical component for maintaining the efficiency and safety of commercial truck operations. Its role in sealing the fuel tank, preventing contamination, and ensuring the integrity of the fuel system is paramount. Proper installation, maintenance, and care of this part contribute to the overall performance and longevity of the vehicle, as well as environmental protection by preventing fuel spills and reducing harmful emissions.