3355843
Fuel Supply Tube
Cummins®

The Fuel Supply Tube 3355843, manufactured by Cummins, is a component integral to the operation of commercial trucks. Cummins, a well-established name in the commercial truck industry, produces a range of parts designed to enhance the performance and reliability of truck engines. This Cummins part plays a significant role in the fuel delivery system of trucks.

Basic Concepts of Fuel Supply Tubes

A fuel supply tube is a conduit that facilitates the transfer of fuel from the tank to the engine. Its function within the fuel system is to ensure a consistent and reliable supply of fuel, which is vital for the engine’s operation ¹. The performance of a truck’s engine is closely tied to the efficiency of its fuel delivery system, making the fuel supply tube a key component in maintaining optimal engine performance.

Purpose of the 3355843 Fuel Supply Tube

This part is designed to deliver fuel from the tank to the engine in commercial trucks. It ensures that fuel is transported efficiently and under the correct pressure, which is crucial for the engine’s combustion process ². By maintaining a steady fuel flow, the tube contributes to the engine’s ability to operate smoothly and efficiently.

Key Features

The 3355843 is constructed from durable materials, ensuring it can withstand the pressures and conditions within the fuel system. Its design includes features that enhance its performance and longevity, such as reinforced sections to prevent leaks and a smooth interior to facilitate fuel flow. These characteristics are integral to its function within the truck’s fuel system.

Benefits

Utilizing this part offers several advantages. It provides improved fuel delivery efficiency, ensuring that the engine receives a consistent fuel supply. Its durable construction contributes to enhanced longevity, reducing the need for frequent replacements. Additionally, the tube’s design can contribute to overall engine performance and longevity by ensuring reliable fuel delivery.

Installation Process

Installing the 3355843 requires careful attention to detail to ensure a secure and effective fit. The process involves disconnecting the old tube, cleaning the connection points, and attaching the new tube with the appropriate fittings. Specific tools may be required to ensure a proper seal and connection, highlighting the importance of following manufacturer guidelines for installation.

Common Issues and Troubleshooting

Issues with the Fuel Supply Tube may include leaks or blockages, which can affect fuel delivery and engine performance. Troubleshooting these problems involves inspecting the tube for signs of damage or wear, checking connections for leaks, and ensuring the tube is free from obstructions. Addressing these issues promptly can help maintain the efficiency and reliability of the fuel system.

Maintenance Tips

Regular maintenance of the 3355843 is key to ensuring its longevity and optimal performance. This includes periodic inspections for signs of wear or damage, cleaning the tube to remove any buildup that could impede fuel flow, and ensuring all connections are secure. Adhering to these maintenance practices can help prevent issues and ensure the tube continues to function effectively.

Cummins: A Brief Overview

Cummins Inc. is a leader in the commercial truck industry, known for its wide range of products that enhance the performance and reliability of truck engines. With a history of innovation and quality, Cummins has established a reputation for producing parts that meet the demanding requirements of commercial trucking. The company’s commitment to quality and performance is evident in its product line, including the 3355843.

Cummins Fuel Supply Tube Part 3355843 Compatibility

The Cummins Fuel Supply Tube part number 3355843 is designed to fit seamlessly within the engine systems of the 6B5.9 and 6C8.3 engines. This part is integral to the fuel delivery mechanism, ensuring that fuel is efficiently and accurately supplied to the engine components.

For the 6B5.9 engine, the fuel supply tube is engineered to integrate with the engine’s specific fuel system architecture, providing a reliable conduit for fuel flow. Similarly, in the 6C8.3 engine, the part is crafted to align with the engine’s design, ensuring optimal performance and durability.

Both engines benefit from the precision engineering of the 3355843 fuel supply tube, which is critical for maintaining the engine’s operational efficiency and longevity. This part is a testament to Cummins’ commitment to quality and compatibility, ensuring that it meets the stringent demands of these engine models.

Role of Part 3355843 Fuel Supply Tube in Engine Systems

The Fuel Supply Tube (part 3355843) is an integral component in the fuel delivery system of an engine, facilitating the seamless transfer of fuel from various sources to the engine’s combustion chambers. Its function is to ensure a consistent and reliable supply of fuel, which is essential for the engine’s performance and efficiency.

Integration with Fuel Filter

The Fuel Supply Tube connects to the Fuel Filter, allowing filtered fuel to pass through. The filter removes impurities and contaminants from the fuel, ensuring that only clean fuel reaches the engine. This connection is vital for maintaining fuel quality and protecting the engine from damage caused by particulate matter.

Connection to Lift Pump

In systems equipped with a Lift Pump, the Fuel Supply Tube plays a role in transporting fuel from the tank to the lift pump. The lift pump increases the fuel pressure, enabling it to be effectively delivered to the main fuel pump. This setup is particularly important in engines where the fuel tank is located below the engine, requiring additional pressure to overcome gravitational forces.

Interaction with Main Fuel Pump

Once the fuel has been filtered and pressurized by the lift pump (if present), it moves through the Fuel Supply Tube to the Main Fuel Pump. The main pump further pressurizes the fuel to the levels required for injection into the engine’s cylinders. This consistent fuel delivery is essential for the engine’s combustion process.

Fuel Transfer to Injectors

The Fuel Supply Tube also facilitates the transfer of fuel from the main pump to the Fuel Injectors. The injectors spray atomized fuel into the combustion chambers, where it mixes with air and ignites. The tube ensures that fuel reaches the injectors under the correct pressure and in a timely manner, contributing to efficient combustion and engine performance.

Overall System Functionality

In summary, the Fuel Supply Tube (part 3355843) is a key component in the fuel delivery system, ensuring that fuel is efficiently and reliably transported from the tank, through filters and pumps, and finally to the injectors. Its role in maintaining the integrity and pressure of the fuel supply is fundamental to the engine’s operation and overall performance.

Conclusion

The 3355843 Fuel Supply Tube is a critical component in the fuel delivery system of commercial trucks, ensuring efficient and reliable fuel transfer from the tank to the engine. Its durable construction, precise engineering, and compatibility with specific engine models highlight Cummins’ commitment to quality and performance. Regular maintenance and proper installation are essential to maximize the benefits of this part, contributing to the overall efficiency and reliability of the truck’s engine system.