3696204
Injector Fuel Supply Tube
Cummins®

The Cummins Injector Fuel Supply Tube, part number 3696204, is a critical component in the fuel systems of heavy-duty trucks. Cummins, a renowned manufacturer in the automotive industry, is recognized for its commitment to producing reliable and high-performance engine components. This part ensures the efficient and reliable delivery of fuel from the tank to the injectors, contributing to the overall performance and efficiency of the engine.

Function and Operation

The Injector Fuel Supply Tube operates as a conduit within the fuel system, facilitating the transfer of fuel from the tank to the injectors. Its primary role is to provide a secure and efficient pathway for fuel, ensuring that it reaches the injectors under the correct pressure and in the right quantity. This component works in conjunction with other elements of the fuel system to maintain consistent fuel delivery, which is vital for the engine’s combustion process and overall performance ¹.

Key Features

The Injector Fuel Supply Tube is characterized by its robust design and construction. It is made from high-quality materials that offer durability and resistance to the corrosive effects of fuel. The tube’s design includes features that enhance its performance, such as precise engineering to ensure a snug fit within the fuel system and smooth internal surfaces to facilitate efficient fuel flow. These attributes contribute to the tube’s reliability and longevity in demanding operating conditions ².

Benefits

The use of the Injector Fuel Supply Tube offers several advantages. It contributes to improved fuel efficiency by ensuring that fuel is delivered to the injectors with minimal loss or leakage. The tube’s reliable performance enhances the overall reliability of the fuel system, reducing the likelihood of fuel-related issues. Additionally, its compatibility with Cummins engines ensures that it integrates seamlessly with the engine’s fuel system, maintaining optimal performance ³.

Installation and Compatibility

Proper installation of the Injector Fuel Supply Tube is crucial for ensuring optimal performance and compatibility with Cummins engines. Installation guidelines should be followed to ensure that the tube is securely fitted within the fuel system, with all connections properly sealed to prevent leaks. Compatibility with specific engine models should be verified to ensure that the tube meets the engine’s requirements for fuel delivery and pressure.

Maintenance and Troubleshooting

Maintaining the Injector Fuel Supply Tube is important for ensuring its longevity and performance. Regular inspections for signs of wear, corrosion, or damage can help identify potential issues before they lead to more significant problems. Troubleshooting common issues such as leaks or blockages may involve checking connections, cleaning or replacing filters, and ensuring that the tube is free from obstructions. Following manufacturer recommendations for maintenance can help extend the life of the component and maintain efficient fuel delivery.

Cummins Overview

Cummins is a reputable manufacturer in the automotive industry, known for its commitment to producing high-quality engine components. With a history of innovation and excellence, Cummins has established a strong reputation for reliability and performance. The company’s dedication to manufacturing excellence is evident in its wide range of products, including the Injector Fuel Supply Tube, which is designed to meet the demanding requirements of heavy-duty truck engines.

Cummins Injector Fuel Supply Tube (Part 3696204) Compatibility

The Cummins Injector Fuel Supply Tube, identified by part number 3696204, is a critical component in the fuel delivery system of certain Cummins engines. This part is designed to ensure the efficient and reliable transfer of fuel from the fuel supply system to the injectors, thereby maintaining optimal engine performance.

Compatible Engines

The injector fuel supply tube is compatible with the following Cummins engines:

• ISG11 CM2880 G108
• ISG12 CM2880 G107
• QSG12 CM2880 G112
• QSG12/X12 CM2350 G110

These engines, while differing in some specifications and applications, share a commonality in their fuel delivery systems, which allows the injector fuel supply tube to fit seamlessly. The compatibility ensures that the tube can effectively interface with the injectors and fuel system components across these engine models.

Engine Grouping

The engines listed can be grouped based on their model and series:

• ISG11 CM2880 G108 and ISG12 CM2880 G107 both belong to the ISG series, which is known for its robust design and high performance in various industrial applications.
• QSG12 CM2880 G112 and QSG12/X12 CM2350 G110 are part of the QSG series, which is typically used in medium-duty applications, offering a balance of power and efficiency.

By understanding the grouping, technicians and engineers can better appreciate the design considerations and commonalities that make the injector fuel supply tube compatible across these engine models.

Role of Part 3696204 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, identified by part number 3696204, 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 individual fuel injectors. This ensures a consistent and reliable fuel supply, which is essential for the injectors to operate effectively.

Integration with Injector Plumbing

The Injector Fuel Supply Tube is a key element in the injector plumbing system. It connects the fuel rail to each injector, forming a network that distributes fuel evenly across all cylinders. This setup is vital for maintaining balanced fuel delivery, which directly influences engine performance and efficiency.

Interaction with Fuel Injectors

Each fuel injector is supplied with fuel through the Injector Fuel Supply Tube. The tube’s design ensures that fuel is delivered under precise pressure, allowing the injectors to atomize the fuel properly. This atomization is necessary for optimal combustion, which in turn enhances engine power and reduces emissions.

Role in the Overall Fuel System

Within the broader context of the fuel system, the Injector Fuel Supply Tube works in concert with the fuel pump, fuel filter, and fuel rail. The fuel pump pressurizes the fuel, which is then filtered to remove impurities before being distributed by the fuel rail. The Injector Fuel Supply Tube ensures that this pressurized, clean fuel reaches the injectors efficiently.

Ensuring System Integrity

The proper installation and maintenance of the Injector Fuel Supply Tube are essential for the integrity of the fuel delivery system. Any leaks or blockages in the tube can lead to inconsistent fuel delivery, potentially causing misfires, reduced performance, and increased fuel consumption. Regular inspection and replacement of the tube, when necessary, are recommended to maintain system reliability.

Conclusion

The Injector Fuel Supply Tube (part 3696204) plays a significant role in ensuring that fuel is delivered efficiently and reliably to the injectors, contributing to the overall performance and efficiency of the engine. Its robust design, compatibility with Cummins engines, and integration within the fuel system make it a critical component for maintaining optimal engine performance.