3393475
Injector Fuel Supply Tube
Cummins®

The Cummins Injector Fuel Supply Tube (Part #3393475) is a component designed to facilitate the delivery of fuel from the fuel system to the injectors in heavy-duty trucks. Its role is significant as it ensures that fuel is supplied consistently and efficiently to the injectors, which is vital for the proper operation of the engine ¹.

Basic Concepts of Injector Fuel Supply Tubes

An Injector Fuel Supply Tube is a conduit that carries fuel from the fuel system to the injectors. Its function is to provide a direct and unobstructed path for fuel, ensuring that the injectors receive the precise amount of fuel needed for combustion. This contributes to the overall performance of the engine by enabling efficient and timely fuel delivery ².

Purpose and Role in Truck Operation

The Injector Fuel Supply Tube plays a role in the operation of a truck by facilitating the delivery of fuel to the injectors. It ensures that fuel is supplied under the correct pressure and at the right time, which is crucial for efficient combustion. This, in turn, helps maintain the engine’s performance and efficiency ³.

Key Features

The Cummins Injector Fuel Supply Tube is characterized by its robust design and the materials used in its construction. It is engineered to withstand the high pressures and temperatures within the fuel system. Unique characteristics such as precise manufacturing tolerances enhance its performance and durability, ensuring reliable fuel delivery.

Benefits

Using the Cummins Injector Fuel Supply Tube is associated with several benefits. These include improved fuel efficiency due to precise fuel delivery, enhanced engine performance as a result of efficient combustion, and increased reliability of the fuel system components.

Installation and Compatibility

Proper installation of the Injector Fuel Supply Tube is important to ensure it functions correctly within the fuel system. It is compatible with various Cummins engine models, and specific procedures should be followed to ensure a secure and leak-free connection. Any specific requirements or considerations for installation should be observed to maintain the integrity of the fuel system.

Maintenance and Troubleshooting

To ensure optimal performance of the Injector Fuel Supply Tube, regular maintenance is recommended. This includes checking for leaks, ensuring connections are secure, and inspecting the tube for any signs of wear or damage. Common issues may include fuel leaks or reduced fuel pressure, and troubleshooting tips can help identify and resolve these problems effectively.

Performance Enhancements

The Injector Fuel Supply Tube contributes to overall engine performance by ensuring precise fuel delivery and efficient combustion. This can lead to improvements in fuel economy, increased power output, and smoother engine operation.

Safety Considerations

When working with the Injector Fuel Supply Tube, it is important to observe safety considerations. This includes proper handling procedures to avoid fuel spills, awareness of potential hazards such as high-pressure fuel lines, and taking safety precautions during maintenance or repair to prevent accidents and ensure personal safety.

Cummins Overview

Cummins Inc. is a company with a long-standing reputation in the industry for producing high-quality automotive components. Founded with a commitment to innovation and excellence, Cummins has established itself as a leader in the manufacturing of engines and related technologies, including fuel system components like the Injector Fuel Supply Tube.

Cummins Injector Fuel Supply Tube (Part 3393475)

The Cummins Injector Fuel Supply Tube, identified by part number 3393475, is a critical component in the fuel delivery system of several Cummins engines. This part ensures the efficient and reliable transfer of fuel from the fuel pump to the fuel injectors, facilitating optimal engine performance.

Application in Cummins Engines

• 6B5.9 Series: The Injector Fuel Supply Tube is integral to the 6B5.9 engine series, where it connects the fuel pump to the injectors, ensuring a steady and uninterrupted fuel supply. This is essential for maintaining the engine’s power output and efficiency.

• Other Cummins Engines: While the 6B5.9 series is a primary application, the part 3393475 is also compatible with other Cummins engines that share similar fuel system configurations. This includes various industrial and heavy-duty engines where precise fuel delivery is crucial.

The design and material of the injector fuel supply tube are engineered to withstand the high pressures and temperatures within the engine’s fuel system, ensuring durability and reliability over time. Proper installation and maintenance of this component are vital for the overall health and longevity of the engine.

Role of Part 3393475 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, identified by part number 3393475, is an integral component within the fuel delivery system of an engine. Its primary function is to transport pressurized fuel from the fuel rail to the fuel injectors. This ensures a consistent and regulated supply of fuel, which is essential for the injectors to atomize fuel effectively into the combustion chamber.

In the context of fuel plumbing, the Injector Fuel Supply Tube acts as a conduit that links the fuel rail to individual fuel injectors. The fuel rail, a pressurized tube running along the cylinder head, distributes fuel to each injector. The Injector Fuel Supply Tube extends from the fuel rail to each injector, maintaining the necessary pressure and flow rate required for optimal engine performance.

The design of the Injector Fuel Supply Tube allows it to withstand high pressures and temperatures, ensuring reliable fuel delivery under various operating conditions. Its precise engineering contributes to the overall efficiency and performance of the fuel injection system.

Conclusion

In summary, the Injector Fuel Supply Tube (part 3393475) plays a significant role in the fuel delivery process by ensuring that each fuel injector receives a steady and pressurized supply of fuel, which is vital for the engine’s combustion process and overall performance.