5575371
Fuel Supply Tube
Cummins®

The Cummins Fuel Supply Tube (part number 5575371) is a critical component designed for heavy-duty trucks. It ensures efficient fuel transport from the tank to the engine, maintaining vehicle performance and reliability in demanding environments.

Purpose and Function

This Cummins part serves as a conduit in the fuel delivery system, ensuring consistent fuel flow and pressure necessary for efficient engine operation. It maintains the required fuel pressure and flow rate, essential for the engine’s combustion process ¹.

Key Features

Constructed from high-quality materials, the Fuel Supply Tube offers durability and resistance to harsh conditions typical in heavy-duty applications. Its design includes reinforced connections and a robust outer layer, enhancing longevity and performance.

Benefits

Using this part contributes to improved fuel efficiency by ensuring a steady and reliable fuel supply. Its durable construction enhances fuel system reliability, reducing the likelihood of leaks or failures. Additionally, its longevity means less frequent replacement, offering cost savings over time.

Installation Process

Installing the Fuel Supply Tube involves disconnecting the old tube, cleaning the fuel system, and routing the new tube to avoid kinks or sharp bends. Tools such as wrenches and fuel line disconnect tools may be required. Following the manufacturer’s instructions ensures a secure and leak-free installation.

Maintenance Tips

Regular maintenance of this part is crucial for its longevity and efficiency. This includes checking for wear or damage, ensuring tight connections, and inspecting for leaks. Replacement should follow the manufacturer’s recommended service intervals or upon observing signs of degradation.

Troubleshooting Common Issues

Common issues with the Fuel Supply Tube may include leaks, blockages, or wear and tear. Troubleshooting involves inspecting for visible damage, checking connection tightness, and ensuring no obstructions in the fuel line. Repairs may involve replacing damaged sections or the entire tube if necessary.

Safety Considerations

When handling and working with the Fuel Supply Tube, it is important to follow safety guidelines. This includes working in a well-ventilated area, avoiding smoking or open flames near the fuel system, and wearing appropriate personal protective equipment. Ensuring the fuel system is depressurized before beginning any work is a critical safety measure.

Environmental Impact

The use of the Fuel Supply Tube in heavy-duty trucks can have environmental benefits. By ensuring efficient fuel delivery, it contributes to better fuel economy, which can reduce overall fuel consumption and emissions, aligning with efforts to minimize the environmental impact of heavy-duty transportation ².

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 a reputation for innovation, quality, and reliability in the automotive and heavy-duty truck industries. The company is committed to advancing technology for a more powerful world, focusing on efficiency, performance, and sustainability.

Cummins Fuel Supply Tube Part 5575371 Compatibility

The Cummins Fuel Supply Tube part number 5575371 is designed to fit a range of Cummins engines, ensuring efficient fuel delivery and system integrity. This part is compatible with the following engine models:

• ISX15 CM2250
• ISX15 CM2250 SN
• ISX15 CM2350 X101
• QSX15 CM2250 ECF
• QSX15 CM2350 X105

These engines are part of the Cummins ISX and QSX series, known for their robust performance and reliability in heavy-duty applications. The Fuel Supply Tube part 5575371 is engineered to meet the specific requirements of these engines, facilitating seamless integration and optimal fuel flow.

Role of Part 5575371 Fuel Supply Tube in Engine Systems

The Fuel Supply Tube (part 5575371) is an integral component within the fuel system of an engine, facilitating the seamless transfer of fuel from the fuel tank to the fuel injectors or carburetor. Its primary function is to ensure a consistent and reliable supply of fuel under varying engine loads and operating conditions.

Integration with the Fuel System

1. Fuel Tank to Fuel Pump: The Fuel Supply Tube connects the fuel tank to the fuel pump, allowing fuel to be drawn from the tank and pressurized for delivery to the engine. This connection is vital for maintaining the fuel pressure required for efficient engine operation.

2. Fuel Filter: Positioned between the fuel tank and the engine, the fuel filter removes impurities from the fuel. The Fuel Supply Tube ensures a clean fuel supply by transporting filtered fuel from the filter to the engine components.

3. Fuel Rail: In modern fuel-injected engines, the Fuel Supply Tube delivers pressurized fuel to the fuel rail, which distributes fuel to individual fuel injectors. This ensures each cylinder receives the precise amount of fuel needed for combustion.

4. Fuel Injectors: The Fuel Supply Tube plays a role in supplying fuel to the fuel injectors, which spray atomized fuel into the engine’s combustion chambers. Accurate fuel delivery is essential for optimal engine performance and fuel efficiency.

5. Carburetor: In engines equipped with a carburetor, the Fuel Supply Tube delivers fuel to the carburetor, where it is mixed with air before entering the combustion chamber. This mixture is critical for the engine’s power output and efficiency.

Interaction with the Primer

In engines that require priming before starting, particularly small engines or those with carburetors, the Fuel Supply Tube assists in the priming process. The primer draws fuel from the tank through the tube, ensuring the carburetor or fuel system is adequately primed for a smooth engine start.

Ensuring System Integrity

The Fuel Supply Tube must be securely connected and free from leaks to maintain the integrity of the fuel system. Any disruption in the fuel supply can lead to engine misfires, reduced performance, or even engine stalling. Regular inspection and maintenance of the Fuel Supply Tube are therefore essential for reliable engine operation.

Conclusion

The Cummins Fuel Supply Tube (part number 5575371) is a vital component in the fuel delivery system of heavy-duty trucks. Its role in ensuring a consistent and reliable fuel supply is crucial for maintaining engine performance and efficiency. Regular maintenance and proper installation are key to maximizing the benefits of this part, contributing to the overall reliability and environmental performance of heavy-duty vehicles.