5560967
Injector Fuel Supply Tube
Cummins®

The Injector Fuel Supply Tube 5560967 by Cummins is a component designed for use in commercial trucks. This part is integral to the fuel delivery system, ensuring that fuel is efficiently and reliably supplied to the injectors. Understanding its purpose and role is fundamental for maintaining optimal engine performance and efficiency in heavy-duty applications ³.

Basic Concepts

Injector fuel supply tubes are vital components within the fuel system of diesel engines. Their primary function is to deliver fuel from the fuel rail to the injectors under precise pressure and timing. This ensures that the fuel is atomized correctly upon injection into the combustion chamber, contributing to efficient combustion and overall engine performance. The design and integrity of these tubes directly influence the engine’s fuel efficiency, power output, and emissions ⁴.

Purpose and Function

The Injector Fuel Supply Tube 5560967 plays a significant role in the fuel delivery system of a truck. It is responsible for ensuring that fuel flows from the fuel rail to the injectors in a controlled manner. This part helps maintain the required fuel pressure and flow rate, which are critical for the injectors to operate correctly. Proper fuel delivery is essential for achieving optimal combustion, which in turn affects engine performance, fuel efficiency, and emissions ¹.

Key Features

The Injector Fuel Supply Tube 5560967 is engineered with specific design and construction features to enhance its performance and durability. It is made from high-quality materials that can withstand the high pressures and temperatures within the fuel system. The tube’s design ensures a secure connection to both the fuel rail and the injectors, minimizing the risk of leaks. Additionally, its construction is robust enough to resist corrosion and wear, ensuring long-term reliability in demanding operating conditions ².

Benefits

The use of the Injector Fuel Supply Tube 5560967 offers several advantages. It contributes to improved fuel efficiency by ensuring that fuel is delivered to the injectors under optimal conditions. This part also enhances engine performance by supporting precise fuel delivery, which is crucial for efficient combustion. Furthermore, its durable construction and reliable operation under various conditions make it a valuable component for maintaining the overall reliability and efficiency of the engine ³.

Troubleshooting and Maintenance

Common issues with the Injector Fuel Supply Tube 5560967 may include leaks, blockages, or damage due to wear and tear. Regular inspection and maintenance are recommended to ensure optimal performance and longevity. Diagnostic procedures should include checking for signs of leaks, verifying the integrity of connections, and ensuring that the tube is free from obstructions. Maintenance practices may involve cleaning the tube and its connections, replacing worn or damaged parts, and ensuring that all components are securely fastened ⁴.

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 providing high-quality components that meet the demanding requirements of commercial applications, ensuring that their products contribute to the efficiency, performance, and reliability of engines worldwide ¹.

Role of Part 5560967 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, identified by part number 5560967, is an essential component in the fuel delivery system of an engine. This tube facilitates the precise and efficient transfer of fuel from the fuel rail to the injectors.

Integration with Fuel System Components

1. Fuel Rail: The Injector Fuel Supply Tube connects directly to the fuel rail, which is a pressurized manifold that distributes fuel to each injector. The tube ensures a consistent fuel supply under pressure, which is vital for the injectors to operate correctly ².

2. Fuel Injectors: Each injector is supplied with fuel through the Injector Fuel Supply Tube. The tube’s design allows for minimal fuel pressure drop, ensuring that each injector receives the exact amount of fuel needed for combustion. This precision is key to maintaining engine performance and fuel efficiency ³.

3. Fuel Filter: Positioned upstream in the fuel system, the fuel filter removes impurities from the fuel before it reaches the Injector Fuel Supply Tube. Clean fuel is essential to prevent clogging and ensure the longevity of the injectors and other fuel system components ⁴.

4. Fuel Pump: The fuel pump pressurizes the fuel, which is then delivered through the Injector Fuel Supply Tube to the fuel rail. The tube must withstand this pressure while maintaining a secure connection to prevent leaks ¹.

5. Fuel Return Line: In systems with a return line, excess fuel is sent back to the tank. The Injector Fuel Supply Tube plays a role in managing fuel flow, ensuring that only the required amount is delivered to the injectors, with the remainder returned to maintain system pressure ².

Plumbing Considerations

The Injector Fuel Supply Tube is part of the engine’s plumbing system, which includes all the hoses, tubes, and connections that transport fuel throughout the engine. Proper installation and maintenance of this tube are necessary to prevent fuel leaks, which can be hazardous, and to ensure the engine operates smoothly ³.

Conclusion

In summary, the Injector Fuel Supply Tube (part 5560967) is a key element in the fuel delivery network, working in concert with the fuel rail, injectors, filter, pump, and return line to deliver fuel efficiently and reliably to the engine’s combustion chambers. Its role in maintaining engine performance, fuel efficiency, and emissions makes it a critical component in the fuel system of commercial trucks ⁴.