3972566
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3972566 Fuel Supply Tube is a component designed for use in the fuel systems of heavy-duty trucks. Its primary role is to facilitate the transfer of fuel from the tank to the engine, ensuring a steady and reliable supply of fuel under various operating conditions.

Purpose and Function

The Fuel Supply Tube plays a role in the fuel delivery system by providing a conduit for fuel to travel from the tank to the engine. It ensures that fuel is delivered at a consistent flow rate and pressure, which is vital for the engine’s performance and efficiency. The tube is engineered to withstand the pressures and temperatures associated with diesel fuel systems, contributing to the overall reliability of the fuel delivery process ¹.

Key Features

This Cummins part is constructed from durable materials that are resistant to the corrosive effects of diesel fuel. Its design includes features that enhance its performance and longevity, such as reinforced connections to prevent leaks and a smooth interior to minimize fuel flow resistance. The tube’s construction is tailored to meet the demanding requirements of heavy-duty truck applications ².

Benefits

Utilizing the Cummins 3972566 Fuel Supply Tube can lead to improved fuel efficiency due to its precise fuel delivery capabilities. The tube’s robust construction contributes to its reliability, reducing the likelihood of fuel system failures. Additionally, its design promotes longevity, offering a cost-effective solution for fuel system maintenance in heavy-duty trucks ³.

Installation and Compatibility

Proper installation of the Fuel Supply Tube requires adherence to manufacturer guidelines to ensure a secure and leak-free connection. The installation process may involve the use of specific tools and additional components to integrate the tube into the existing fuel system. Compatibility information for various truck models and engine types should be consulted to ensure the correct application of the Fuel Supply Tube ⁴.

Maintenance and Troubleshooting

Regular maintenance of the Fuel Supply Tube is important to ensure its efficient operation. This includes checking for signs of wear or damage and ensuring all connections are secure. Common issues may include fuel leaks or inconsistent fuel delivery, which can often be addressed by inspecting and tightening connections or replacing worn components as necessary.

Safety Considerations

When working with the Fuel Supply Tube or any fuel system component, it is important to follow safety guidelines. This includes ensuring the fuel system is depressurized before beginning any work, using appropriate personal protective equipment, and being aware of the flammable nature of diesel fuel. Proper system integrity must be maintained to prevent leaks or failures that could pose a safety risk.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins has established a reputation for producing reliable and efficient components for the automotive and heavy-duty truck industries. The company’s focus on technological advancement and customer satisfaction underscores its position as a leader in the field.

Cummins Engine Compatibility with Fuel Supply Tube Part 3972566

The Cummins part number 3972566, a Fuel Supply Tube, is designed to fit seamlessly into specific models of Cummins engines. This part is integral to the proper functioning of the fuel system, ensuring efficient fuel delivery to the engine components.

QSB6.7 CM850 (CM2850) Engines

The Fuel Supply Tube part 3972566 is compatible with the QSB6.7 CM850 (CM2850) engines. This part ensures that the fuel supply line maintains its integrity and efficiency, preventing leaks and ensuring that the engine receives the correct amount of fuel for optimal performance.

QSB7 CM2880 B117 Engines

Similarly, the QSB7 CM2880 B117 engines also utilize the Cummins part number 3972566 for their fuel supply needs. This part is engineered to fit precisely within the engine’s design, providing a reliable connection between the fuel pump and the injectors. The compatibility of this part with these engines ensures that the fuel system operates smoothly, contributing to the overall efficiency and longevity of the engine.

By using the Cummins part number 3972566 in these engines, users can expect a seamless integration that supports the engine’s performance and reliability.

Role of Part 3972566 Fuel Supply Tube in Engine Systems

The part 3972566 Fuel Supply Tube is an integral component in the fuel delivery system of various engine setups. Its primary function is to transport fuel from the fuel tank to the fuel filter and subsequently to the engine’s fuel injectors or carburetor. This seamless fuel transfer is essential for maintaining consistent engine performance.

In the context of the fuel system, the Fuel Supply Tube interfaces directly with the fuel tank’s outlet, ensuring a steady and uninterrupted flow of fuel. It is typically connected to the fuel filter via secure plumbing connections, which are designed to withstand the pressures and temperatures within the fuel system. The fuel filter plays a significant role in this setup by removing impurities and contaminants from the fuel before it reaches the engine, thereby protecting the fuel injectors or carburetor from damage and ensuring optimal combustion efficiency.

The Fuel Supply Tube’s design and material are selected to endure the corrosive nature of fuel and the varying temperatures it encounters, ensuring durability and reliability. Its placement within the engine bay is strategic, often routed away from heat sources and moving parts to prevent damage and ensure safe operation.

Effective plumbing of the Fuel Supply Tube is vital. It involves precise fitting and sealing to prevent fuel leaks, which could pose safety hazards and affect engine performance. The connections to both the fuel tank and the fuel filter must be tight and secure, often utilizing specialized clamps or fittings to maintain integrity under operational conditions.

In summary, the part 3972566 Fuel Supply Tube, through its role in the fuel delivery system, ensures that the engine receives a clean and consistent supply of fuel, directly influencing the engine’s efficiency, performance, and longevity.

Conclusion

The Cummins 3972566 Fuel Supply Tube is a critical component in the fuel systems of heavy-duty trucks, designed to ensure a reliable and efficient fuel delivery to the engine. Its robust construction, compatibility with specific Cummins engines, and role in maintaining engine performance underscore its importance in the automotive industry. Proper installation, maintenance, and adherence to safety guidelines are essential to maximize the benefits of this part.