3935480
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3935480 Fuel Supply Tube is a critical component in commercial trucks powered by Cummins engines. It ensures a consistent and reliable fuel supply from the tank to the engine, contributing to the vehicle’s efficiency and performance. This part is integral to the fuel system, designed to withstand the pressures and demands of fuel delivery ³.

Function and Operation

This Cummins part serves as a conduit within the fuel system, delivering fuel from the tank to the engine. It connects the fuel tank to the engine’s fuel system, ensuring efficient fuel transport without leaks or interruptions. The tube’s design is crucial for maintaining the necessary fuel flow for engine operation ¹.

Key Features

The 3935480 is constructed from high-quality materials, offering resistance to corrosion and wear, which ensures longevity in demanding environments. It may include reinforced sections to handle pressure fluctuations and flexible segments to accommodate movement within the vehicle’s fuel system. These features enhance the tube’s reliability and efficiency in fuel delivery ¹.

Benefits

This part offers improved fuel efficiency and reliability by ensuring a consistent fuel supply, which helps maintain engine performance and efficiency. Its compatibility with Cummins engines ensures it meets the specific requirements and standards of these engines, contributing to their optimal operation. The tube’s design and construction also enhance its durability, reducing the need for frequent replacements and maintenance ¹.

Installation and Compatibility

Proper installation of the Fuel Supply Tube is essential for its effective operation. It requires careful alignment and secure connection to both the fuel tank and the engine’s fuel system. Compatibility with various Cummins engine models is a key consideration, ensuring that the tube meets the specific requirements and standards of these engines ¹.

Maintenance and Troubleshooting

Regular maintenance of the Fuel Supply Tube is important to ensure its optimal performance. This includes periodic inspections for signs of wear, corrosion, or damage. Common issues may include leaks or blockages, which can affect fuel delivery and engine performance. Troubleshooting steps may involve checking connections, inspecting for damage, and ensuring that the tube is properly aligned and secured ¹.

Safety Considerations

When working with the Fuel Supply Tube, it is important to follow safety guidelines and precautions. This includes proper handling and storage of fuel to prevent spills and accidents. Adherence to manufacturer recommendations for installation, maintenance, and troubleshooting is also crucial to ensure safe and effective operation of the fuel system ².

Cummins Overview

Cummins Inc. is a leading manufacturer of diesel engines, known for its high-quality products and reputation in the commercial truck industry. With a history of innovation and excellence, Cummins offers a wide range of engines and components designed for durability, efficiency, and performance. The company’s commitment to quality and customer satisfaction has established it as a trusted name in the industry ³.

Cummins Fuel Supply Tube 3935480 Compatibility

The Cummins Fuel Supply Tube part number 3935480 is designed to fit seamlessly with a variety of Cummins engine models. This component is crucial for maintaining the integrity of the fuel delivery system, ensuring that fuel is efficiently and accurately supplied to the engine components.

Engine Compatibility

• 6B5.9 Series

  • The 3935480 Fuel Supply Tube is specifically engineered to integrate with the 6B5.9 engine series. This engine is known for its robust performance and reliability, often used in heavy-duty applications. The fuel supply tube ensures that the engine receives a consistent and uninterrupted fuel flow, which is vital for optimal performance and longevity.

• Other Cummins Engines

  • While the primary focus is on the 6B5.9 series, the 3935480 Fuel Supply Tube is also compatible with other Cummins engines that share similar design specifications. This includes various models that are part of the broader Cummins engine family, ensuring versatility and ease of use across different engine types.

Installation and Functionality

The installation of the 3935480 Fuel Supply Tube is straightforward, designed to fit precisely within the engine’s fuel system architecture. This ensures that the tube can effectively connect to the fuel lines and other components without requiring extensive modifications or adjustments. The tube’s design facilitates smooth fuel flow, reducing the risk of leaks and ensuring that the engine operates at peak efficiency.

Importance of Proper Fitment

Ensuring that the 3935480 Fuel Supply Tube is correctly installed is crucial for the overall health of the engine. Proper fitment prevents fuel leaks, maintains fuel pressure, and supports the engine’s performance. This component’s compatibility with multiple Cummins engine models underscores its importance in maintaining the integrity of the fuel supply system across various applications.

Role of Part 3935480 Fuel Supply Tube in Engine Systems

The Fuel Supply Tube (part 3935480) is a vital component in the fuel delivery system of an engine, facilitating the smooth and efficient transfer of fuel from the fuel tank to the engine’s fuel pump. Its integration with various engine components ensures optimal performance and reliability.

Integration with the Lift Pump

In systems equipped with a Lift Pump, the Fuel Supply Tube connects the fuel tank to the inlet of the lift pump. This connection ensures that fuel is drawn from the tank and pressurized to the necessary levels before it reaches the main fuel pump. The tube’s design allows for consistent fuel flow, minimizing the risk of air ingestion and ensuring the lift pump operates within its specified parameters.

Connection to the Main Pump

Following the lift pump, the Fuel Supply Tube extends to the main Fuel Pump. This segment of the tube is responsible for delivering pressurized fuel from the lift pump to the main pump, where it is further pressurized to meet the engine’s demands. The tube’s durable construction and precise fitting are vital for maintaining fuel integrity and pressure throughout this transfer.

Fuel Transfer System

In engines with a dedicated Fuel Transfer system, the Fuel Supply Tube plays a pivotal role in routing fuel between different components, such as from the fuel tank to an intermediate storage unit or directly to the engine’s fuel injection system. This ensures a continuous and uninterrupted fuel supply, which is essential for consistent engine performance. The tube’s pathway is carefully engineered to avoid interference with other engine components while ensuring minimal fuel loss or contamination.

Overall, the Fuel Supply Tube (part 3935480) is a fundamental element in the fuel delivery architecture, ensuring that fuel is efficiently and reliably transferred throughout the engine system.

Conclusion

The Cummins 3935480 Fuel Supply Tube is a crucial component in the fuel delivery system of Cummins engines, ensuring efficient and reliable fuel transfer from the tank to the engine. Its design, compatibility, and role in the engine system contribute to the overall performance and reliability of the vehicle. Proper installation, maintenance, and adherence to safety guidelines are essential for the optimal operation of this part.