4000920
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4000920 Fuel Supply Tube is a critical component in the fuel systems of heavy-duty trucks. It facilitates the transfer of fuel from the tank to the engine, ensuring a consistent and reliable fuel supply. This component is essential for the efficient operation of diesel engines, contributing to overall vehicle performance and fuel economy.

Purpose and Function

This Cummins part plays a role in the fuel system by delivering fuel from the tank to the engine. It ensures that fuel flows consistently and maintains the necessary pressure for optimal engine performance. The Fuel Supply Tube is designed to handle the demands of heavy-duty applications, providing a stable fuel supply under various operating conditions.

Key Features

The 4000920 is constructed from high-quality materials that offer durability and resistance to the corrosive effects of diesel fuel. Its design includes features that enhance performance, such as precise engineering to ensure a secure fit and efficient fuel transfer. The tube is also designed to withstand the high pressures and temperatures encountered in heavy-duty truck fuel systems.

Benefits

Using this part offers several advantages. It contributes to improved fuel efficiency by ensuring a consistent fuel supply to the engine. The robust construction of the tube enhances reliability, reducing the likelihood of fuel system failures. Additionally, its design promotes longevity, making it a cost-effective component for heavy-duty truck applications.

Installation and Compatibility

Proper installation of the Fuel Supply Tube involves following manufacturer guidelines to ensure a secure and efficient connection within the fuel system. This may require specific tools and additional components, depending on the truck model and engine type. Compatibility information should be consulted to ensure the tube is suitable for the intended application.

Maintenance and Troubleshooting

Regular maintenance of the Fuel Supply Tube is important to ensure its longevity and efficiency. This includes inspecting the tube for signs of wear or damage and replacing it if necessary. Common issues may include fuel leaks or reduced fuel flow, which can often be addressed by checking connections and ensuring the tube is properly installed.

Safety Considerations

When handling and installing the Fuel Supply Tube, it is important to follow safety guidelines to prevent accidents and ensure proper operation. This includes working in a well-ventilated area, avoiding sparks or open flames near the fuel system, and using appropriate personal protective equipment. Proper disposal of old or damaged fuel supply tubes is also important to prevent environmental contamination.

Environmental Impact

The efficient design of the Fuel Supply Tube contributes to reduced fuel consumption and lower emissions. By ensuring a consistent and reliable fuel supply, it helps the engine operate more efficiently, aligning with environmental standards and regulations aimed at reducing the carbon footprint of heavy-duty vehicles.

Cummins Overview

Cummins Inc. is a leading manufacturer of diesel engines and related technologies, with a strong reputation in the automotive industry. The company has a history of innovation and quality, producing high-performance components that meet the demanding requirements of heavy-duty applications. Cummins’ commitment to excellence is reflected in its wide range of diesel engine components, including the 4000920 Fuel Supply Tube ¹.

Cummins Engine Compatibility with Fuel Supply Tube Part 4000920

The Cummins Fuel Supply Tube part number 4000920 is designed to be compatible with a range of Cummins engines, ensuring seamless integration and reliable performance. This part is integral to the engine’s fuel system, facilitating the transfer of fuel from the fuel tank to the engine’s fuel injection system.

QSK45 Engines

The QSK45 engine series, which includes models such as the QSK45 CM500, is engineered for heavy-duty applications, providing robust power and efficiency. The Fuel Supply Tube part 4000920 is specifically engineered to fit these engines, ensuring that fuel is delivered consistently and without leaks. This compatibility is crucial for maintaining the engine’s performance and longevity.

CM500 Engines

The CM500 engine is another model within the Cummins lineup that benefits from the Fuel Supply Tube part 4000920. This part is designed to work seamlessly with the CM500 engine’s fuel system, ensuring that the engine receives the correct amount of fuel for optimal operation. The design of the part ensures that it can withstand the rigors of heavy-duty use, providing a reliable connection that minimizes the risk of fuel leaks and other issues.

Grouping of Engines

The Fuel Supply Tube part 4000920 is engineered to fit a variety of Cummins engines, including those in the QSK45 series and the CM500 model. This part’s compatibility with these engines highlights Cummins’ commitment to providing high-quality, reliable components that ensure the smooth operation of their engines. By ensuring that the Fuel Supply Tube fits these engines, Cummins maintains the integrity and performance of their heavy-duty engines, providing users with a dependable and efficient power source ².

Role of Part 4000920 Fuel Supply Tube in Engine Systems

The part 4000920 Fuel Supply Tube is an essential component in the fuel delivery system of an engine, ensuring a steady and reliable flow of fuel from the fuel tank to the engine’s combustion chambers. Its integration with various engine components is designed to optimize performance and efficiency.

Integration with Plumbing

In the context of engine plumbing, the Fuel Supply Tube connects to the fuel lines that run from the fuel tank to the engine. This tube is responsible for transporting fuel under pressure, which is vital for maintaining consistent fuel delivery. The tube interfaces with fuel filters, ensuring that any contaminants are removed before the fuel reaches the engine. Additionally, it connects to fuel injectors or carburetors, depending on the engine type, facilitating precise fuel metering for combustion.

Interaction with Engine Control Module (ECM)

The Fuel Supply Tube also plays a role in the engine’s electronic management system. The Engine Control Module (ECM) monitors and controls various parameters of the engine, including fuel delivery. Sensors along the fuel line, such as fuel pressure sensors, provide real-time data to the ECM. This data allows the ECM to adjust the fuel supply dynamically, ensuring optimal engine performance under varying conditions. The Fuel Supply Tube must be robust and leak-free to maintain the integrity of the fuel system, allowing the ECM to function effectively.

Conclusion

In summary, the Part 4000920 Fuel Supply Tube is a key component that ensures efficient and reliable fuel delivery within the engine system, interacting seamlessly with both the physical plumbing and the electronic control systems. Its robust design, compatibility with various Cummins engines, and role in maintaining optimal engine performance make it a critical part of heavy-duty truck fuel systems ³.