3348639
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3348639 Fuel Supply Line is a critical component in commercial trucks, ensuring a consistent and reliable fuel supply to the engine. This part is essential for the efficient operation of commercial vehicles, contributing to their overall performance and reliability.

Basic Concepts of Fuel Supply Lines

A fuel supply line is a vital conduit in a truck’s fuel system, responsible for delivering fuel from the tank to the engine under pressure generated by the fuel pump. The efficiency and reliability of this system are paramount for the truck’s performance, as any inconsistency in fuel supply can lead to engine malfunctions or reduced efficiency ¹.

Purpose of the Cummins 3348639 Fuel Supply Line

This Cummins part ensures a steady flow of fuel to the engine, designed to withstand the pressures and conditions within the fuel system. Its construction is tailored to meet the demands of commercial truck operations, ensuring the engine receives the fuel it needs for optimal performance ².

Key Features

The Fuel Supply Line is constructed from high-quality, corrosion-resistant materials, ensuring durability and reliability. Its design facilitates easy installation and maintenance, with compatibility across various truck models and engines. The line’s flexibility and resistance to high pressures contribute to its effectiveness in the fuel delivery system ³.

Benefits of Using the Cummins 3348639 Fuel Supply Line

Utilizing this part offers advantages such as improved fuel efficiency, enhanced engine performance, and increased reliability. Its design ensures a consistent fuel flow, leading to better engine performance and fuel economy. The durability of this component reduces the likelihood of fuel system failures, contributing to the truck’s overall efficiency and reliability.

Installation Considerations

Proper installation of the 3348639 is crucial for its performance and the efficiency of the fuel delivery system. This includes verifying compatibility with the truck’s fuel system, ensuring secure connections, and following manufacturer recommendations.

Maintenance and Troubleshooting

Regular inspections of the Fuel Supply Line for wear, corrosion, or damage are essential. Common issues such as leaks or blockages can be addressed through cleaning, repair, or replacement. Troubleshooting should involve checking connections, inspecting for damage, and ensuring the component functions within specified parameters.

Compatibility and Application

The 3348639 is designed for specific truck and engine types, ensuring it meets the demands of various commercial vehicle models. Its compatibility ensures reliable fuel delivery under different operating conditions.

Safety Considerations

When working with the 3348639, it is important to follow safety guidelines, including careful handling of fuel system components, ensuring proper ventilation, and verifying system integrity to prevent leaks or hazards.

Environmental Impact

This part contributes to reducing emissions and improving fuel efficiency, aligning with environmental regulations and sustainability goals. By ensuring a consistent fuel supply, it helps the engine operate more efficiently, potentially reducing fuel consumption and emissions.

Manufacturer Overview - Cummins Inc.

Cummins Inc. is a leading manufacturer of diesel engines, known for its innovation and quality in the commercial truck industry. The company’s expertise in engine manufacturing and commitment to advancing technology have established it as a trusted provider of components like the 3348639.

Compatibility with QSK19 CM500 Engines

The 3348639 is designed to fit seamlessly within the QSK19 CM500 engine series, ensuring optimal fuel delivery and engine performance. Its integration within this engine series is critical for maintaining efficient fuel flow and engine operational integrity.

Role in Engine Systems

The 3348639 plays a vital role in the efficient operation of various engine systems. It ensures a consistent and reliable fuel supply under varying operational conditions, working in conjunction with the fuel pump, fuel filter, and fuel injectors.

Contribution to Accessories

This part supports engine accessories such as fuel pressure regulators and fuel return lines by ensuring a consistent flow of fuel, which is essential for their operation and the overall efficiency of the engine.

Role in Hot Start and Knock Kit

In systems equipped with a hot start knock kit, the 3348639 is particularly important. It ensures the engine receives the necessary fuel volume and pressure to mitigate knocking, contributing to the kit’s effectiveness in maintaining engine health and performance.

Conclusion

The Cummins 3348639 Fuel Supply Line is a crucial component for the efficient and reliable operation of commercial trucks. Its design, durability, and compatibility with various engine models make it an essential part of the fuel delivery system, contributing to improved engine performance, fuel efficiency, and environmental sustainability.