3944651
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3944651 Fuel Supply Tube is a critical component in heavy-duty trucks, designed to facilitate the transfer of fuel from the tank to the engine. This ensures a consistent and reliable fuel supply, contributing to efficient fuel delivery and engine functionality .

Function and Operation

This Cummins part operates within the fuel system, delivering fuel from the tank to the engine under appropriate pressure and conditions. It interfaces with other components like the fuel pump and fuel filter to maintain a steady fuel flow, ensuring optimal engine performance .

Key Features

The Fuel Supply Tube is constructed from durable materials to withstand the pressures and temperatures within the fuel system. It is engineered to resist corrosion and wear, ensuring longevity and reliable performance. The design may include specific fittings and connections for enhanced compatibility and ease of installation within Cummins engine systems .

Benefits

The 3944651 offers several advantages, including improved fuel efficiency through a consistent and uncontaminated fuel supply. Its reliable construction enhances the overall reliability of the fuel system, reducing the likelihood of fuel delivery issues. Compatibility with Cummins engines ensures seamless integration and optimal performance .

Installation and Compatibility

Proper installation of the Fuel Supply Tube is essential for its effective operation. Installation guidelines may vary by truck model and engine type, so following manufacturer recommendations is crucial. Compatibility with various Cummins engine models ensures that the tube meets specific application requirements .

Maintenance and Troubleshooting

Regular maintenance of the 3944651 is recommended to ensure optimal performance. This includes periodic inspection for wear or damage, cleaning to remove contaminants, and replacement according to manufacturer guidelines. Troubleshooting may involve checking for leaks, ensuring proper connections, and verifying fuel flow rates .

Safety Considerations

When handling and working with the Fuel Supply Tube, observing safety precautions is important. This includes ensuring proper ventilation, using personal protective equipment, and adhering to manufacturer recommendations for handling and installation. Fuel systems can present hazards, so careful attention to safety guidelines is necessary .

Environmental Impact

The use of the 3944651 can contribute to environmental benefits by supporting improved fuel efficiency and reduced emissions. Efficient fuel delivery helps minimize fuel consumption, lowering the environmental impact of heavy-duty truck operations. Reliable fuel system components can also help prevent fuel leaks and spills, further protecting the environment .

Cummins Overview

Cummins Inc. is a global leader in designing, manufacturing, and distributing engines, filtration, and power generation products. With a history of innovation and quality, Cummins has established a strong reputation in the automotive and heavy-duty truck industries. The company offers a wide range of products designed to meet demanding requirements, ensuring reliable performance and efficiency .

Conclusion

The Cummins 3944651 Fuel Supply Tube is a vital component in the fuel delivery system of heavy-duty trucks. Its design and construction ensure a consistent and reliable fuel supply, contributing to engine efficiency and performance. Proper installation, maintenance, and adherence to safety guidelines are essential for optimal operation and environmental benefits.

: Advanced Automotive Electricity and Electronics, Michael Klyde and Kirk VanGelder, Jones Bartlett Learning, 2010.
: An Introduction to Modern Vehicle Design, Julian Happian-Smith, Butterworth-Heinemann, 2002.