4989797
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4989797 Fuel Supply Tube is a critical component in the fuel systems of heavy-duty trucks. Its primary function is to facilitate the transfer of fuel from the tank to the engine, ensuring a consistent supply that meets the demands of the vehicle’s power requirements. This component is essential for maintaining the efficiency and performance of the truck’s engine.

Purpose and Function

The Fuel Supply Tube is designed to deliver fuel from the tank to the engine, providing a dedicated pathway that ensures consistent fuel pressure and flow. This consistent delivery is crucial for the engine’s combustion process, directly influencing the truck’s overall performance and efficiency. The tube is engineered to withstand the pressures and temperatures associated with fuel transport in heavy-duty applications ¹.

Key Features

The Cummins 4989797 is constructed from high-quality materials that resist corrosion and wear, ensuring longevity in demanding environments. Its design may include reinforced sections to handle high-pressure fuel delivery, and it is constructed to be compatible with various fuel types used in heavy-duty trucks. These features contribute to the tube’s reliability and efficiency in fuel transport ².

Benefits

Using the Cummins 4989797 offers several advantages. Its design contributes to improved fuel efficiency by ensuring a consistent and reliable fuel supply to the engine. The tube’s durability and resistance to wear reduce the need for frequent replacements, enhancing the vehicle’s reliability. Additionally, its efficient design can contribute to lower emissions, aligning with environmental regulations and standards ³.

Installation and Compatibility

Proper installation of the Fuel Supply Tube is crucial for ensuring its effectiveness and the overall performance of the fuel system. Installation procedures should follow manufacturer guidelines to ensure compatibility and proper function. This may involve using specific tools or additional components to secure the tube in place and ensure a leak-free connection. Compatibility with various truck models and engine types should be verified to ensure optimal performance and integration within the fuel system.

Maintenance and Troubleshooting

Regular maintenance practices are recommended to ensure the longevity and efficiency of the Cummins 4989797. This includes periodic inspections for signs of wear, corrosion, or leaks. Common issues that may arise include blockages or restrictions in the tube, which can affect fuel flow and pressure. Troubleshooting steps may involve cleaning the tube or, in more severe cases, replacement to restore proper fuel delivery.

Safety Considerations

When working with the Fuel Supply Tube, it is important to observe safety practices and precautions. This includes handling fuel with care to avoid spills and ensuring that the fuel system is properly pressurized to prevent leaks. Additionally, following manufacturer guidelines for installation and maintenance can help ensure the safe and efficient operation of the fuel system.

Environmental Impact

The efficient design of the Cummins 4989797 contributes to reduced fuel consumption and lower emissions. By ensuring a consistent and reliable fuel supply, the tube helps the engine operate more efficiently, which can lead to lower fuel consumption. This efficiency not only benefits the vehicle’s performance but also aligns with environmental regulations and standards by reducing the vehicle’s carbon footprint.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes diesel and natural gas engines, as well as related technologies. With a history of innovation and quality, Cummins has established a reputation for producing reliable and efficient engines and components for commercial vehicles. The company’s commitment to excellence is reflected in its wide range of products, including the Cummins 4989797 Fuel Supply Tube, which is designed to meet the demanding requirements of heavy-duty truck applications.

Compatibility

The Cummins Fuel Supply Tube part number 4989797 is designed to fit seamlessly within several engine models, ensuring efficient fuel delivery and system integrity. This part is crucial for maintaining the operational efficiency of the engines it is compatible with.

QSC9 CM2250/QSL9 CM2250 Engines

The Fuel Supply Tube 4989797 is specifically engineered to integrate with the QSC9 CM2250 and QSL9 CM2250 engines. These engines are known for their robust performance and reliability, and the fuel supply tube plays a vital role in their operation by ensuring a steady and uninterrupted fuel flow to the engine components.

QSL9 CM2250 and QSL9 CM2350 L102 Engines

Similarly, the part number 4989797 is also compatible with the QSL9 CM2250 and QSL9 CM2350 L102 engines. These engines, while sharing some similarities, may have slight variations in their fuel system requirements. The fuel supply tube is designed to meet the specific needs of these engines, ensuring optimal fuel delivery and system performance.

Grouping for Compatibility

The compatibility of the Fuel Supply Tube 4989797 across the QSC9 CM2250, QSL9 CM2250, and QSL9 CM2350 L102 engines highlights the importance of using the correct part for each engine model. This ensures that the fuel system operates efficiently, reducing the risk of fuel leaks and maintaining the engine’s performance.

Role in Engine Systems

The 4989797 Fuel Supply Tube is a critical 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. This tube ensures a consistent and reliable fuel flow, which is fundamental for the engine’s performance and efficiency.

In the context of fuel filter plumbing, the 4989797 Fuel Supply Tube connects to the fuel filter housing. This connection is vital as it allows the fuel to be filtered before it reaches the engine. The fuel filter removes impurities and contaminants from the fuel, ensuring that only clean fuel enters the engine’s combustion chambers. This helps in maintaining the engine’s longevity and optimal performance.

Additionally, the Fuel Supply Tube interfaces with the fuel pump, which pressurizes the fuel before it is delivered to the engine. This pressurized fuel is then directed through the fuel rails and injectors, where it is atomized into a fine mist for combustion. The consistent fuel pressure maintained by the Fuel Supply Tube is essential for the precise operation of the fuel injectors, which rely on stable pressure to deliver the correct amount of fuel at the right time.

Furthermore, the Fuel Supply Tube is often equipped with various sensors and regulators that monitor fuel flow and pressure. These components work in tandem with the engine control unit (ECU) to adjust fuel delivery based on driving conditions, ensuring efficient fuel consumption and reduced emissions.

Conclusion

In summary, the Cummins 4989797 Fuel Supply Tube plays a significant role in the fuel delivery system by ensuring a steady and clean supply of fuel to the engine. It interfaces with critical components such as the fuel filter, fuel pump, and fuel injectors to maintain engine performance and efficiency. Proper installation, maintenance, and understanding of its compatibility with various engine models are essential for optimal performance and longevity of the fuel system.