3918873
Fuel Supply Tube
Cummins®

The Cummins 3918873 Fuel Supply Tube is a component designed for use in the fuel systems of heavy-duty trucks. It facilitates the transfer of fuel from the tank to the engine, ensuring that the engine receives a consistent and reliable fuel supply. This component is integral to the efficient operation of the truck’s engine, contributing to overall performance and reliability.

Basic Concepts of Fuel Supply Tubes

A fuel supply tube is a conduit within the fuel system that transports fuel from the tank to the engine. Its function is vital for the continuous operation of the engine, as it ensures that fuel is delivered under the correct pressure and in the right quantity. The tube contributes to the overall operation of a truck’s engine by maintaining a steady fuel flow, which is necessary for combustion and power generation ¹.

Purpose of the Cummins 3918873 Fuel Supply Tube

This Cummins part plays a specific role in the fuel delivery system by providing a pathway for fuel to travel from the tank to the engine. It is designed to ensure a consistent fuel supply, which is crucial for the engine’s performance. The tube is engineered to withstand the pressures and temperatures within the fuel system, ensuring reliable operation under various driving conditions ².

Key Features

The Cummins 3918873 Fuel Supply Tube is constructed from materials that offer durability and resistance to the corrosive effects of fuel. Its design includes features that enhance its performance, such as reinforced connections to prevent leaks and a smooth interior to facilitate fuel flow. These characteristics contribute to the tube’s ability to maintain a consistent fuel supply and its longevity within the fuel system ³.

Benefits of Using the Cummins 3918873 Fuel Supply Tube

Utilizing this Cummins part can lead to improved fuel efficiency, as it ensures that fuel is delivered to the engine without interruption or loss. The tube’s reliable construction contributes to the overall reliability of the fuel system, reducing the likelihood of fuel-related issues. Additionally, its durable design promotes longevity, offering a cost-effective solution for fuel delivery in heavy-duty trucks.

Installation and Compatibility

Proper installation of the Cummins 3918873 Fuel Supply Tube is important for ensuring a secure and effective fit within the truck’s fuel system. Installation procedures should follow manufacturer guidelines to ensure that the tube is correctly positioned and connected. Specific requirements may include the use of compatible fittings and adherence to torque specifications for connections.

Maintenance and Troubleshooting

Routine maintenance of the Cummins 3918873 Fuel Supply Tube involves inspecting the tube for signs of wear, leaks, or damage. Regular checks can help identify issues before they lead to more significant problems. Common issues may include fuel leaks or restrictions in fuel flow, which can often be addressed by inspecting connections, replacing damaged sections, or cleaning the tube as necessary.

Safety Considerations

When working with the Cummins 3918873 Fuel Supply Tube, it is important to observe safety protocols to prevent accidents and ensure personal safety. This includes handling the tube and fuel system components with care to avoid spills and exposure to fuel. Additionally, understanding the potential hazards associated with fuel systems, such as fire risks, is crucial for safe maintenance and repair practices.

Cummins Corporation

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 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 is known for its commitment to quality and reliability in the automotive and heavy-duty truck industries.

Cummins Fuel Supply Tube 3918873 Compatibility

The Cummins Fuel Supply Tube part number 3918873 is designed to fit seamlessly within a range of engine models, ensuring efficient fuel delivery and maintaining the engine’s operational integrity. This part is integral to the fuel system, facilitating the transfer of fuel from the fuel tank to the engine’s fuel injectors.

Engine Compatibility

• 6C8.3 Series Engines
  • The 3918873 Fuel Supply Tube is specifically engineered to integrate with the 6C8.3 series engines. These engines are known for their robust performance and reliability, often utilized in heavy-duty applications. The fuel supply tube ensures that the fuel flow is consistent and uninterrupted, which is crucial for maintaining the engine’s power output and efficiency.

Installation and Functionality

The installation of the Cummins Fuel Supply Tube 3918873 is straightforward, designed to fit snugly within the engine’s fuel system architecture. This part is crafted to withstand the high pressures and temperatures typically encountered in engine environments, ensuring durability and longevity.

By ensuring a proper seal and connection, the fuel supply tube prevents fuel leaks, which can be hazardous and detrimental to engine performance. Its design allows for easy maintenance and replacement, making it a reliable component for technicians and operators alike.

Importance in Engine Performance

The role of the fuel supply tube in engine performance cannot be overstated. It is a critical component that ensures the engine receives the correct amount of fuel at the right pressure, which is essential for optimal combustion and power generation. The 3918873 part number is a testament to Cummins’ commitment to providing high-quality, reliable parts that enhance engine performance and longevity.

This compatibility extends to various applications where the 6C8.3 engines are used, including but not limited to agricultural machinery, construction equipment, and industrial power systems. The fuel supply tube’s design ensures that it meets the stringent demands of these diverse environments, providing consistent and reliable performance.

Role of Part 3918873 Fuel Supply Tube in Engine Systems

The part 3918873 Fuel Supply Tube is an essential component in the fuel delivery system of an engine. It is responsible for transporting fuel from the fuel tank to the engine’s fuel injection system or carburetor. This seamless flow of fuel is vital for the engine’s performance and efficiency.

Integration with Plumbing

In the context of engine plumbing, the Fuel Supply Tube connects to various fuel lines and components. It interfaces with the fuel pump, which pressurizes the fuel, and routes it through the system. The tube is designed to withstand the pressure and temperature variations within the fuel lines, ensuring a consistent supply of fuel to the engine.

Interaction with Fuel Filter

The Fuel Supply Tube also plays a significant role in conjunction with the fuel filter. Before the fuel reaches the engine, it passes through the fuel filter, which removes impurities and contaminants. The tube ensures that clean, filtered fuel is delivered to the engine, contributing to its longevity and optimal performance.

Conclusion

In summary, the Cummins 3918873 Fuel Supply Tube is a key element in the fuel delivery network, working in tandem with other components to maintain a reliable and efficient fuel supply to the engine. Its design, durability, and compatibility with various engine models make it a critical component for the performance and reliability of heavy-duty trucks.