3967673
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3967673 Fuel Supply Tube is a critical component in the fuel systems of heavy-duty trucks, designed to ensure a consistent and reliable fuel supply from the tank to the engine.

Basic Concepts of Fuel Supply Tubes

A fuel supply tube, such as the Cummins 3967673, is a conduit within the fuel delivery system that carries fuel under pressure from the tank to the engine. It must be constructed to withstand the demands of diesel fuel, including resistance to corrosion and the ability to maintain a seal under pressure ¹.

Purpose of the Cummins 3967673 Fuel Supply Tube

This Cummins part is engineered to handle the high pressures and temperatures associated with diesel fuel systems, ensuring that the engine receives a steady and clean fuel supply for optimal performance ².

Key Features

The Cummins 3967673 is characterized by several key features that enhance its performance and durability. It is constructed from materials that offer resistance to the corrosive effects of diesel fuel and the high pressures within the fuel system. The design includes elements that ensure a secure connection to both the fuel tank and the engine’s fuel system, minimizing the risk of leaks. Additionally, the tube may feature unique characteristics such as reinforced sections to withstand pressure fluctuations and a smooth interior to facilitate fuel flow.

Benefits

This part provides several advantages. It contributes to improved fuel efficiency by ensuring a consistent fuel supply to the engine. Its reliable construction and design enhance the overall reliability of the fuel system. Furthermore, it is compatible with Cummins engines, ensuring seamless integration and performance within the specified engine models.

Installation and Compatibility

Proper installation of this Cummins part involves following manufacturer guidelines to ensure a secure and leak-free connection. The installation may require specific tools or equipment, and it is important to refer to the manufacturer’s instructions for the correct procedures. Compatibility with various Cummins engine models is a key consideration, and it is advisable to consult the manufacturer’s compatibility charts or documentation to ensure the tube is suitable for the specific engine application.

Maintenance and Troubleshooting

Routine maintenance of this part includes regular inspections for signs of wear, corrosion, or leaks. Common issues that may arise include blockages or restrictions in the tube, which can affect fuel delivery. Troubleshooting tips may involve checking for proper connections, ensuring the tube is free from obstructions, and addressing any signs of damage promptly to maintain optimal performance and longevity.

Safety Considerations

When working with the fuel supply system, it is important to follow safety precautions and guidelines. This includes proper handling of fuel to prevent spills and fires, wearing appropriate personal protective equipment, and adhering to manufacturer recommendations for installation, maintenance, and repair. Safety data sheets and manufacturer instructions should be consulted for specific safety information related to the Cummins 3967673 Fuel Supply Tube.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, emissions solutions, and related technologies. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the automotive industry, particularly in the realm of heavy-duty truck components. The company’s commitment to excellence is reflected in its product offerings, which are designed to meet the demanding requirements of commercial and industrial applications.

Cummins Fuel Supply Tube 3967673 Compatibility

The Cummins Fuel Supply Tube part number 3967673 is designed to fit seamlessly with a range of Cummins engines, ensuring efficient fuel delivery and optimal engine performance. This part is engineered to meet the stringent requirements of various engine models, providing a reliable connection between the fuel system components.

Engine Compatibility

• 6B5.9 Series: The 3967673 Fuel Supply Tube is specifically engineered to integrate with the 6B5.9 engine series. This compatibility ensures that the fuel supply remains uninterrupted, maintaining the engine’s efficiency and power output.

• Other Cummins Engines: While the primary focus is on the 6B5.9 series, the 3967673 Fuel Supply Tube is also compatible with other Cummins engines that share similar design and operational characteristics. This versatility makes it a valuable component for maintaining a variety of Cummins engine models.

The design of the 3967673 Fuel Supply Tube ensures it fits snugly and securely within the engine’s fuel system, providing a stable and leak-free connection. This is crucial for maintaining the engine’s performance and longevity, as any disruptions in the fuel supply can lead to inefficiencies and potential engine damage.

Role of Part 3967673 Fuel Supply Tube in Engine Systems

The part 3967673 Fuel Supply Tube is an integral component in the fuel delivery system of various engine setups. It is responsible for transporting fuel from the fuel tank to the fuel filter and subsequently to the engine’s fuel injection system or carburetor.

In the context of plumbing, the Fuel Supply Tube acts as a conduit, ensuring a consistent and reliable flow of fuel. It is designed to withstand the pressures and temperatures associated with fuel transport, minimizing the risk of leaks or fuel starvation. The tube is often routed through the vehicle’s chassis, requiring careful planning to avoid contact with hot components and moving parts.

When considering the fuel filter, the Fuel Supply Tube plays a supportive role by delivering fuel to the filter. The filter screens out impurities and contaminants from the fuel before it reaches the engine, ensuring that only clean fuel is combusted. This helps in maintaining engine performance and longevity. The connection between the Fuel Supply Tube and the fuel filter must be secure to prevent any fuel leaks, which could pose a safety hazard.

Overall, the Fuel Supply Tube is a key element in the fuel delivery network, working in concert with other components to ensure efficient and safe engine operation.

Conclusion

The Cummins 3967673 Fuel Supply Tube is a vital component in the fuel systems of heavy-duty trucks, ensuring a consistent and reliable fuel supply to the engine. Its design and features contribute to improved fuel efficiency, enhanced reliability, and seamless integration with Cummins engines. Proper installation, maintenance, and adherence to safety guidelines are essential for optimal performance and longevity of this part.