3930766
Fuel Supply Tube
Cummins®

The Cummins Fuel Supply Tube, part number 3930766, is a vital component in the fuel system of heavy-duty trucks. Cummins, a renowned name in the automotive industry, is known for producing reliable and high-performance parts. This part is designed to ensure efficient and consistent fuel delivery from the tank to the engine, contributing to the vehicle’s overall performance and reliability.

Basic Concepts of Fuel Supply Tubes

A Fuel Supply Tube serves as a conduit for transferring fuel from the storage tank to the engine. Its role within the fuel system is to provide a secure and efficient pathway for fuel, ensuring that the engine receives a steady supply necessary for combustion. The proper operation of a Fuel Supply Tube is fundamental to the engine’s performance, directly influencing fuel delivery efficiency and, consequently, the truck’s power output and fuel economy ¹.

Purpose of the Cummins Fuel Supply Tube

The Cummins Fuel Supply Tube, part number 3930766, facilitates the delivery of fuel from the tank to the engine. This component is engineered to withstand the pressures and conditions within the fuel system, ensuring consistent and uninterrupted fuel delivery. Its design allows for efficient fuel transfer, which is crucial for maintaining engine performance under various operating conditions.

Key Features

This Cummins part is characterized by its specific design and material properties that enhance its performance and durability. Constructed from high-quality materials, it is resistant to the corrosive effects of fuel and the high pressures within the fuel system. Its design includes features that ensure a secure fit within the fuel system, minimizing the risk of leaks and ensuring efficient fuel delivery.

Benefits

The Cummins Fuel Supply Tube offers several advantages, including improved fuel efficiency due to its efficient design, which minimizes fuel loss during transfer. Its reliability is enhanced by its durable construction, which ensures long-term performance under demanding conditions. Additionally, the tube is designed for ease of installation, allowing for straightforward replacement or upgrade within the fuel system.

Installation Process

Installing the Cummins Fuel Supply Tube requires following a series of steps to ensure proper integration within the fuel system. The process involves disconnecting the old tube, if applicable, and connecting the new tube in its place. Tools and additional components may be required to secure the tube and ensure a leak-free connection. Detailed instructions should be followed to maintain the integrity of the fuel system.

Common Issues and Troubleshooting

Typical problems with the Cummins Fuel Supply Tube may include leaks, blockages, or damage to the tube itself. Troubleshooting steps involve inspecting the tube for signs of wear or damage, checking connections for tightness, and ensuring that the fuel system is free of contaminants that could affect tube performance. Solutions may range from simple adjustments to replacement of the tube if damage is detected.

Maintenance Tips

Regular maintenance of the Cummins Fuel Supply Tube is recommended to ensure its longevity and optimal performance. This includes periodic inspection for signs of wear or damage, ensuring all connections are secure, and keeping the fuel system clean to prevent blockages. Following manufacturer guidelines for maintenance can help prevent issues and ensure the tube continues to function efficiently.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality, reliability, and innovation in the automotive industry. Its product range includes engines and components for on-highway, off-highway, and power generation applications, serving a wide array of industries and customers worldwide.

Cummins Fuel Supply Tube 3930766 Compatibility

The Cummins Fuel Supply Tube, part number 3930766, is designed to integrate seamlessly with various engine models, ensuring efficient fuel delivery and system integrity. This component is crucial for maintaining the performance and reliability of the engines it is paired with.

Engine Compatibility

• 6C8.3 Engines

  • The 3930766 Fuel Supply Tube is specifically engineered to fit the 6C8.3 engine series. This part ensures that the fuel supply system operates smoothly, preventing leaks and maintaining consistent fuel pressure.

• Other Cummins Engines

  • While the primary focus here is on the 6C8.3 engines, the 3930766 Fuel Supply Tube is also compatible with other Cummins engine models. This versatility makes it a valuable component for technicians and fleet managers who manage multiple engine types.

Installation and Integration

• Precision Fit

  • The 3930766 part is designed with precision to fit snugly within the engine’s fuel system. This ensures that there are no gaps or misalignments that could lead to fuel leaks or inefficiencies.

• Durability and Reliability

  • Constructed from high-quality materials, the 3930766 Fuel Supply Tube is built to withstand the rigors of continuous operation. This durability ensures long-term reliability and reduces the need for frequent replacements.

• Ease of Installation

  • Technicians will find that the 3930766 part is easy to install, thanks to its straightforward design and compatibility with standard tools. This ease of installation helps to minimize downtime and keep engines running efficiently.

By ensuring a precise fit and leveraging high-quality materials, the Cummins Fuel Supply Tube 3930766 plays a critical role in the performance and longevity of the engines it supports.

Role of Part 3930766 Fuel Supply Tube in Engine Systems

The Cummins Fuel Supply Tube, part number 3930766, is an essential 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 systems equipped with fuel filter plumbing, the 3930766 Fuel Supply Tube connects the fuel tank to the fuel filter, ensuring a clean and uninterrupted fuel flow. This setup is vital for maintaining the efficiency and performance of the engine, as it prevents contaminants from entering the fuel system.

When integrated with general plumbing within the fuel system, the 3930766 Fuel Supply Tube acts as a conduit that ensures the fuel reaches its destination under the correct pressure and flow rate. This is particularly important in high-performance engines where precise fuel delivery is necessary for optimal operation.

In summary, the 3930766 Fuel Supply Tube plays a significant role in ensuring that the fuel system operates smoothly, providing the engine with the necessary fuel for combustion while protecting sensitive components from contaminants.

Conclusion

The Cummins Fuel Supply Tube, part number 3930766, is a critical component in the fuel system of heavy-duty trucks. Its role in ensuring efficient and consistent fuel delivery contributes significantly to the vehicle’s performance and reliability. By understanding its purpose, features, benefits, and maintenance requirements, technicians and fleet managers can ensure the longevity and optimal operation of this essential part.