3093373
Injector Fuel Supply Tube
Cummins®

Introduction

The Cummins Injector Fuel Supply Tube, identified by part number 3093373, is a critical component in the fuel system of heavy-duty trucks. Manufactured by Cummins Inc., a leader in diesel engine and component manufacturing, this part ensures efficient fuel delivery to the injectors, contributing to the overall performance and reliability of the engine.

Function and Operation

The Injector Fuel Supply Tube serves as a conduit within the fuel system, facilitating the transfer of fuel from the fuel tank to the injectors. Its role is essential in maintaining a consistent fuel supply, which is necessary for the injectors to atomize fuel effectively and ensure optimal combustion within the engine cylinders. The tube is designed to withstand the pressures and temperatures inherent in the fuel system, ensuring a reliable fuel delivery process ¹.

Key Features

The Cummins Injector Fuel Supply Tube is engineered with specific design and construction features to enhance its performance and durability. Constructed from high-quality materials, it is resistant to corrosion and wear, ensuring longevity in demanding operating conditions. The tube’s design may include features such as reinforced connections and precise diameter sizing to maintain fuel flow efficiency and prevent leaks ².

Benefits

The use of the Cummins Injector Fuel Supply Tube offers several advantages. It contributes to improved fuel efficiency by ensuring a consistent and clean fuel supply to the injectors. This consistent fuel delivery enhances engine performance, allowing for more efficient combustion and power output. Additionally, the tube’s robust construction and reliable operation under various conditions contribute to the overall reliability of the engine, making it suitable for heavy-duty applications ³.

Installation and Compatibility

Proper installation of the Injector Fuel Supply Tube is crucial for its effective operation. Installation procedures may require specific tools or equipment to ensure secure and leak-free connections. Compatibility with various Cummins engine models is a key consideration, ensuring that the tube fits and functions correctly within the intended fuel system.

Maintenance and Troubleshooting

Routine maintenance of the Injector Fuel Supply Tube is important to ensure its continued reliable operation. Maintenance practices may include regular inspection intervals to check for signs of wear, corrosion, or leaks. Cleaning procedures might be recommended to remove any contaminants that could affect fuel flow. Troubleshooting common issues, such as fuel leaks or blockages, involves identifying the source of the problem and applying the appropriate corrective actions, which may include repairs or replacement of the tube.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel and natural gas engines, as well as related technologies. With a history of innovation and quality, Cummins has established a strong reputation in the automotive industry, particularly for its diesel engines and components. The company’s commitment to excellence is reflected in its product offerings, which are designed to meet the demanding requirements of various applications, from heavy-duty trucks to industrial equipment.

Compatibility

The Injector Fuel Supply Tube part number 3093373 is designed to integrate seamlessly with several engine models. This part is crucial for maintaining the integrity of the fuel delivery system, ensuring that fuel is efficiently and accurately supplied to the injectors.

QST30 CM552 Engines

The Injector Fuel Supply Tube 3093373 is compatible with the QST30 CM552 engines. This compatibility ensures that the fuel supply tube fits precisely within the engine’s design, providing a reliable connection between the fuel pump and the injectors. The tube’s design is tailored to withstand the operational stresses and pressures inherent in these engines, ensuring durability and consistent performance.

Grouped Engine Compatibility

For engines within the same family or series, such as those sharing similar design principles and operational parameters, the Injector Fuel Supply Tube 3093373 is engineered to fit multiple models. This compatibility extends to engines that share common components or design features, ensuring that the tube can be used across various models without modification.

The precision engineering of the Injector Fuel Supply Tube 3093373 ensures it fits snugly and securely within the engine’s fuel system, maintaining the integrity of the fuel delivery process. This compatibility is critical for maintaining engine performance and longevity.

Role in Engine Systems

The Injector Fuel Supply Tube, identified by part number 3093373, is a vital component in the fuel delivery system of an engine. It is responsible for transporting fuel from the fuel rail to the individual fuel injectors. This ensures that each injector receives a consistent and precise amount of fuel, which is essential for optimal engine performance.

Integration with Fuel Rail

The Injector Fuel Supply Tube connects directly to the fuel rail, which is a manifold that distributes fuel to each injector. The tube’s role is to maintain a stable fuel pressure and provide a seamless pathway for fuel flow. This integration ensures that the fuel rail can effectively supply fuel to all injectors simultaneously, promoting balanced engine operation.

Interaction with Fuel Injectors

Each fuel injector is connected to the Injector Fuel Supply Tube via specific fittings. The tube’s design allows for minimal fuel pressure drop, ensuring that each injector operates under identical conditions. This uniformity is key to achieving precise fuel metering, which directly impacts engine performance, fuel efficiency, and emissions.

Contribution to Engine Performance Parts

In the context of performance parts, the Injector Fuel Supply Tube plays a significant role. High-performance engines often require modifications to the fuel system to handle increased fuel demands. Upgrading the fuel supply tube can enhance fuel flow rates and pressure stability, supporting the performance gains achieved through other modifications such as upgraded injectors, fuel pumps, and fuel rails.

Role in Overall System Performance

The efficiency of the Injector Fuel Supply Tube influences the overall performance of the fuel system. A well-designed tube minimizes restrictions and ensures consistent fuel delivery, which is essential for maintaining engine power, responsiveness, and reliability. In performance applications, even minor improvements in fuel delivery can lead to noticeable gains in engine output and drivability.

Conclusion

The Cummins Injector Fuel Supply Tube (part number 3093373) is a critical component in the fuel system of heavy-duty engines, ensuring efficient and reliable fuel delivery to the injectors. Its robust construction, precise design, and compatibility with various Cummins engine models make it an essential part for maintaining engine performance and longevity. Proper installation, maintenance, and troubleshooting are key to maximizing the benefits of this Cummins part.