4006812
Fuel Supply Tube
Cummins®

Introduction

The Fuel Supply Tube 4006812 by Cummins is a component designed to facilitate the delivery of fuel from the tank to the engine in heavy-duty trucks. Its role is significant as it ensures that the engine receives a consistent and reliable supply of fuel, which is vital for the efficient operation of the vehicle ¹.

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 direct and unobstructed pathway for fuel, ensuring that the engine receives the necessary fuel at the correct pressure and flow rate. This contributes to the overall performance and efficiency of the truck’s engine by maintaining a steady fuel supply ².

Purpose and Role of the 4006812 Fuel Supply Tube

The 4006812 Fuel Supply Tube is specifically engineered to play a role in the fuel delivery system of Cummins engines. It ensures that fuel is consistently delivered to the engine, which is important for maintaining engine performance and efficiency. By providing a reliable fuel pathway, it helps in achieving optimal combustion and power output ³.

Key Features of the 4006812 Fuel Supply Tube

The 4006812 Fuel Supply Tube is constructed with materials that offer durability and resistance to the corrosive effects of fuel. Its design includes features that enhance its performance, such as precise engineering to maintain fuel pressure and flow. The tube is built to withstand the demanding conditions of heavy-duty truck operations, ensuring longevity and reliability.

Benefits of Using the 4006812 Fuel Supply Tube

Incorporating the 4006812 Fuel Supply Tube into a truck’s fuel system can lead to improved fuel efficiency, as it ensures that fuel is delivered to the engine without interruption or loss of pressure. Its reliable performance contributes to the overall reliability of the fuel system, and its durable construction supports the longevity of the component within the system.

Installation and Compatibility

Proper installation of the 4006812 Fuel Supply Tube requires adherence to manufacturer guidelines to ensure it functions correctly within the fuel system. It is compatible with specific Cummins engine models, and installation may require certain tools or equipment to ensure a secure and proper fit.

Maintenance and Troubleshooting

Regular maintenance of the 4006812 Fuel Supply Tube involves inspecting for signs of wear or damage and ensuring that connections are secure. Common issues may include leaks or blockages, which can be addressed by following troubleshooting steps such as checking connections, cleaning the tube, or replacing damaged sections.

Safety Considerations

When working with the fuel supply system and the 4006812 Fuel Supply Tube, it is important to observe safety precautions. This includes proper handling of fuel to prevent spills and fires, and addressing any leaks promptly to avoid hazardous conditions.

Cummins: A Brief Overview

Cummins Inc. is a well-established manufacturer of diesel engines and related technologies. With a history of innovation and quality, Cummins has built a reputation for producing reliable and efficient engine components, including the 4006812 Fuel Supply Tube, which is part of their commitment to enhancing the performance and reliability of heavy-duty trucks.

Application in Cummins Engines

The Fuel Supply Tube (part number 4006812) is specifically designed to fit within the Cummins engine family, including models such as the QSK78 and CM500. These engines are known for their robust performance and are widely used in various industrial and power generation applications.

QSK78

The QSK78 engine series is part of Cummins’ high-performance line, designed for demanding applications such as marine, power generation, and industrial use. The Fuel Supply Tube in this engine ensures that fuel is delivered consistently and accurately, which is crucial for maintaining the engine’s high power output and efficiency.

CM500

The CM500 engine is another high-performance model in Cummins’ lineup, often utilized in heavy-duty applications. The Fuel Supply Tube in the CM500 engine is engineered to handle the rigorous demands of these applications, providing a reliable pathway for fuel to reach the injection system.

Importance of the Fuel Supply Tube

The Fuel Supply Tube is a vital part of the engine’s fuel system, as it directly impacts the engine’s performance and reliability. Proper installation and maintenance of this component are essential to prevent fuel leaks, ensure consistent fuel flow, and maintain the engine’s overall efficiency.

Compatibility and Installation

When installing the Fuel Supply Tube in Cummins engines such as the QSK78 and CM500, it is important to follow the manufacturer’s guidelines to ensure a proper fit and function. This includes using the correct installation techniques and tools to avoid damage to the tube or the engine’s fuel system. Regular inspection and maintenance of the Fuel Supply Tube are also recommended to detect and address any potential issues early on.

Role of Part 4006812 Fuel Supply Tube in Engine Systems

The 4006812 Fuel Supply Tube is an essential component in the fuel delivery system of an engine. It is responsible for transporting fuel from the fuel tank to the fuel injectors, ensuring a consistent and reliable supply of fuel to the combustion chambers.

Integration with Key Components

1. Fuel Injectors: The primary role of the 4006812 Fuel Supply Tube is to deliver fuel to the injectors. The tube connects to the fuel rail, which houses the injectors. Each injector is supplied with fuel through this tube, allowing for precise fuel metering and injection into the combustion chamber.

2. Fuel Rail: The fuel rail is a critical component that distributes fuel to each injector. The 4006812 Fuel Supply Tube feeds into the fuel rail, maintaining the necessary fuel pressure required for optimal injector performance. This ensures that each cylinder receives the correct amount of fuel for efficient combustion.

3. Camshaft: Although the camshaft itself does not directly interact with the fuel supply tube, its role in controlling the timing of the intake and exhaust valves affects the overall engine performance. A well-timed camshaft ensures that the air-fuel mixture is introduced into the combustion chamber at the right moment, maximizing efficiency and power output.

4. Plumbing System: The fuel supply tube is part of the engine’s plumbing system, which includes all the hoses, lines, and connections that transport fluids throughout the engine. Proper installation and maintenance of the 4006812 Fuel Supply Tube are vital to prevent leaks and ensure the integrity of the fuel delivery system.

5. Performance Considerations: The efficiency of the 4006812 Fuel Supply Tube directly impacts engine performance. A well-functioning fuel supply tube ensures that the engine receives a consistent fuel supply, which is essential for smooth operation, optimal power output, and fuel efficiency. Any restriction or leak in the tube can lead to performance issues, such as misfires or reduced power.

Conclusion

In summary, the 4006812 Fuel Supply Tube plays a significant role in the fuel delivery system by ensuring a steady and reliable supply of fuel to the injectors, which is essential for the overall performance and efficiency of the engine. Proper installation, maintenance, and understanding of its integration with other engine components are crucial for optimal engine operation.