3912925
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3912925 Fuel Supply Tube is a component designed for use in heavy-duty trucks. Its role is to facilitate the transfer of fuel from the tank to the engine, ensuring a consistent and reliable fuel supply. This component is significant in the operation of heavy-duty trucks as it contributes to the efficient and effective functioning of the fuel delivery system ¹.

Purpose and Function

The Cummins 3912925 Fuel Supply Tube plays a role in the fuel delivery system by providing a conduit for fuel to travel from the tank to the engine. This tube ensures that fuel is delivered under the correct pressure and in the right quantity, which is vital for the engine’s performance. By maintaining a steady fuel flow, it helps in optimizing the combustion process within the engine ².

Key Features

The Cummins 3912925 Fuel Supply Tube is constructed with materials that offer durability and resistance to the corrosive effects of fuel. Its design includes features that enhance its performance, such as precise engineering to ensure a snug fit within the fuel system and robust construction to withstand the pressures and temperatures encountered in heavy-duty applications ³.

Benefits

The use of the Cummins 3912925 Fuel Supply Tube can lead to improved fuel efficiency due to its role in maintaining a consistent fuel supply. It is designed to be reliable, reducing the likelihood of fuel delivery issues. Additionally, it is compatible with specific Cummins engine models, ensuring that it meets the performance standards required for these engines.

Installation and Compatibility

Proper installation of the Cummins 3912925 Fuel Supply Tube involves following manufacturer guidelines to ensure it is securely fitted within the fuel system. This may include using specific tools and taking precautions to avoid damage to the tube or surrounding components. Compatibility information for this tube includes details on the truck models and engine types it is designed to work with.

Maintenance and Troubleshooting

Routine maintenance of the Cummins 3912925 Fuel Supply Tube includes checking for signs of wear or damage and ensuring all connections are secure. Common issues may include leaks or blockages, which can be addressed by inspecting the tube and connections, and making necessary repairs or replacements. Regular maintenance helps in ensuring the longevity and optimal performance of the fuel supply tube.

Safety Considerations

When working with the Cummins 3912925 Fuel Supply Tube, it is important to follow safety precautions. This includes handling fuel with care to avoid spills and ensuring that all connections are properly sealed to prevent leaks. It is also important to work in a well-ventilated area and to have fire extinguishing equipment readily available.

Cummins Overview

Cummins Inc. is a company with a long-standing reputation in the automotive industry for producing high-quality components for heavy-duty trucks. Founded with a commitment to innovation and excellence, Cummins has established itself as a leader in the design and manufacture of diesel engines and related technologies. The company’s products are known for their reliability and performance, making them a preferred choice for heavy-duty applications.

Cummins Fuel Supply Tube Part 3912925 Compatibility

The Cummins Fuel Supply Tube part number 3912925 is a critical component in the fuel delivery system of certain engine models. This part is designed to ensure the efficient and reliable transfer of fuel from the fuel tank to the engine’s fuel injection system.

Engine Compatibility

The part 3912925 is specifically engineered to fit the following Cummins engine models:

• 6C8.3

This part is integral to the proper functioning of the fuel system in these engines, ensuring that fuel is delivered consistently and without interruption, which is crucial for maintaining engine performance and efficiency.

Application in Engine Systems

In the 6C8.3 engine, the fuel supply tube part 3912925 connects the fuel tank to the fuel injection system, facilitating the movement of fuel under the necessary pressure. This connection is vital for the engine’s operation, as it ensures that the fuel is delivered to the injectors at the correct time and in the correct quantity, which is essential for the engine’s combustion process.

Importance of Proper Installation

Proper installation of the fuel supply tube is essential to prevent fuel leaks, which can lead to engine performance issues, safety hazards, and potential environmental damage. The part must be securely attached to both the fuel tank and the fuel injection system, ensuring a tight seal that can withstand the pressures and movements of the engine during operation.

Maintenance and Replacement

Regular inspection and maintenance of the fuel supply tube are recommended to ensure its integrity and functionality. Any signs of wear, damage, or leaks should be addressed promptly to prevent potential engine issues. When replacing the part, it is crucial to use the correct specifications and ensure that the new tube is compatible with the engine model to maintain optimal performance.

Role of Part 3912925 Fuel Supply Tube in Engine Systems

The Fuel Supply Tube (part 3912925) is an integral component within the fuel delivery system of an engine. Its primary function is to transport fuel from the fuel tank to the fuel filter and subsequently to the engine’s fuel injectors or carburetor. This ensures a consistent and reliable supply of fuel, which is essential for the engine’s operation.

Integration with Fuel System Components

1. Fuel Tank to Fuel Filter: The fuel supply tube connects the fuel tank to the fuel filter. This connection is vital as it allows fuel to flow from the storage reservoir to the filtration stage, where contaminants are removed to prevent damage to sensitive engine components.

2. Fuel Filter: Positioned between the fuel tank and the engine, the fuel filter plays a significant role in maintaining the cleanliness of the fuel. The fuel supply tube delivers fuel to the filter, where it is screened for impurities. Clean fuel then proceeds through the tube to the next stage of the fuel system.

3. Plumbing: The fuel supply tube is part of the overall plumbing of the fuel system. It is designed to withstand the pressures and temperatures associated with fuel transport, ensuring that fuel reaches the engine under all operating conditions.

4. Fuel Injectors or Carburetor: Ultimately, the fuel supply tube facilitates the delivery of fuel to the engine’s fuel injectors or carburetor. This is where the fuel is mixed with air and combusted to produce the power that drives the engine.

The fuel supply tube’s role in these interconnected components underscores its importance in maintaining the efficiency and performance of the engine. Proper installation and maintenance of the fuel supply tube are essential to ensure the longevity and reliability of the fuel system.

Conclusion

The Cummins 3912925 Fuel Supply Tube is a vital component in the fuel delivery system of heavy-duty trucks, ensuring a consistent and reliable fuel supply to the engine. Its durable construction, precise engineering, and compatibility with specific Cummins engine models contribute to improved fuel efficiency and engine performance. Proper installation, maintenance, and adherence to safety precautions are essential to maximize the benefits of this Cummins part.