4975694
Fuel Supply Tube
Cummins®

The Cummins 4975694 Fuel Supply Tube is a component designed for use in commercial trucks. It serves a significant role in the fuel system by facilitating the delivery of fuel from the tank to the engine. This part is integral to maintaining the operational efficiency and reliability of the vehicle.

Basic Concepts of Fuel Supply Tubes

A fuel supply tube is a conduit within the fuel system that transports fuel from the tank to the engine. Its function is to provide a consistent and uninterrupted flow of fuel, ensuring that the engine receives the necessary amount for combustion. The tube operates under pressure and must be durable enough to withstand the conditions within the fuel system ¹.

Purpose of the Cummins 4975694 Fuel Supply Tube

The Cummins 4975694 Fuel Supply Tube is designed to ensure a steady supply of fuel to the engine of a truck. It plays a role in the fuel system by connecting the fuel tank to the engine’s fuel injection system. This consistent fuel delivery is vital for the engine’s performance and the truck’s overall operation ².

Key Features

The Cummins 4975694 Fuel Supply Tube is characterized by its robust design and the materials used in its construction. It is made from high-quality materials that offer resistance to the corrosive effects of fuel and the high pressures within the system. The tube’s design includes features that enhance its performance and durability, such as reinforced connections and a smooth interior to facilitate fuel flow ³.

Benefits

The use of the Cummins 4975694 Fuel Supply Tube offers several advantages. It contributes to improved fuel delivery efficiency, which can lead to enhanced engine performance. The tube’s reliable construction increases the overall reliability of the fuel system, reducing the likelihood of fuel delivery issues.

Installation and Integration

Installing the Cummins 4975694 Fuel Supply Tube requires careful consideration of the truck’s fuel system layout. Preparations may include draining the fuel system and ensuring that all connections are clean and free from debris. Integration with other fuel system components must be precise to maintain the system’s integrity and functionality.

Troubleshooting and Maintenance

Common issues with the Cummins 4975694 Fuel Supply Tube may include leaks or blockages. Troubleshooting involves checking for proper connections, inspecting the tube for damage, and ensuring that the fuel filters are clean. Regular maintenance practices, such as periodic inspections and replacements when necessary, help to ensure the tube’s optimal performance and longevity.

Safety Considerations

When working with the Cummins 4975694 Fuel Supply Tube, it is important to observe safety practices. This includes handling fuel with care to avoid spills and ensuring that the tube is properly installed to prevent fuel leaks. Adherence to safety guidelines is crucial to protect both the technician and the vehicle.

Cummins Overview

Cummins Inc. is a well-established company with a long history in the commercial truck industry. Known for its commitment to quality and innovation, Cummins has built a reputation for producing reliable and high-performance engine components. The company’s expertise is reflected in its wide range of products, including the Cummins 4975694 Fuel Supply Tube.

Cummins Fuel Supply Tube 4975694 Compatibility

The Cummins Fuel Supply Tube part number 4975694 is designed to fit seamlessly with several engine models, ensuring optimal fuel delivery and engine performance. This part is integral to the fuel system, facilitating the transfer of fuel from the fuel tank to the engine’s fuel injectors.

QST30 CM552 Engines

The Cummins Fuel Supply Tube 4975694 is specifically engineered to integrate with the QST30 CM552 engines. This compatibility ensures that the fuel supply remains uninterrupted, which is crucial for maintaining the engine’s efficiency and reliability. The tube’s design allows for precise fuel flow, which is essential for the proper functioning of these engines.

Grouping of Compatible Engines

While the primary focus is on the QST30 CM552 engines, it is important to note that the Cummins Fuel Supply Tube 4975694 may also be compatible with other similar engine models within the Cummins engine family. This part’s design and specifications are crafted to meet the demands of various engine configurations, ensuring a broad range of applications.

For users of Cummins engines, ensuring that the correct fuel supply tube is used is vital for maintaining engine performance and longevity. The 4975694 part number is a reliable choice for those seeking to replace or upgrade their fuel supply tube, providing a seamless fit and function across compatible engine models.

Role of Part 4975694 Fuel Supply Tube in Engine Systems

The part 4975694 Fuel Supply Tube is an essential component in the fuel delivery system of various engine setups. Its primary function is to transport fuel from the fuel tank to the fuel injectors or carburetor, ensuring a consistent and reliable fuel supply to the engine.

Integration with Fuel System Components

1. Fuel Tank: The Fuel Supply Tube connects directly to the fuel tank, where it draws fuel through a pickup tube. This connection is typically secured with a fitting that prevents leaks and ensures a tight seal.

2. Fuel Pump: In systems equipped with an electric fuel pump, the Fuel Supply Tube is connected to the pump’s outlet. The pump pressurizes the fuel, which is then delivered through the tube to the engine. This pressurized flow is vital for maintaining the correct fuel pressure required by the injectors.

3. Fuel Filter: Often, the Fuel Supply Tube routes the fuel through a fuel filter before it reaches the engine. The filter removes impurities and contaminants from the fuel, protecting the injectors and other sensitive components downstream.

4. Fuel Rail: In fuel-injected engines, the Fuel Supply Tube delivers fuel to the fuel rail. The rail distributes fuel to each injector, ensuring each cylinder receives the appropriate amount of fuel for combustion.

5. Carburetor: In carbureted engines, the Fuel Supply Tube feeds fuel directly into the carburetor. The carburetor then mixes the fuel with air before delivering it to the engine’s combustion chambers.

6. Plumbing Connections: The Fuel Supply Tube often includes various plumbing connections, such as hose clamps, fittings, and connectors, to ensure a secure and leak-free system. These connections are designed to withstand the pressures and temperatures within the fuel system.

Ensuring Reliable Fuel Delivery

The Fuel Supply Tube plays a significant role in maintaining the integrity of the fuel delivery system. Its design and material are chosen to withstand the corrosive nature of fuel and the varying pressures within the system. Proper installation and regular inspection of the Fuel Supply Tube are essential to prevent fuel leaks, ensure efficient engine performance, and maintain safety standards.

Conclusion

The Cummins 4975694 Fuel Supply Tube is a critical component in the fuel delivery system of commercial trucks. Its robust design, compatibility with various engine models, and role in ensuring a consistent fuel supply contribute to the overall performance and reliability of the vehicle. Regular maintenance and adherence to safety practices are essential for the optimal operation of this Cummins part.