4989798
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4989798 Fuel Supply Tube is a critical component in the fuel delivery system of heavy-duty trucks. It ensures a consistent and adequate supply of fuel to the engine, which is essential for optimal performance and efficiency.

Basic Concepts of Fuel Supply Tubes

A fuel supply tube is a conduit within the fuel system that transports fuel from the tank to the engine. It maintains the integrity and pressure of the fuel as it moves through the system. The efficiency and reliability of the fuel supply tube influence the engine’s performance, ensuring that fuel is delivered in the correct quantity and at the right pressure ¹.

Purpose of the Cummins 4989798 Fuel Supply Tube

The Cummins 4989798 Fuel Supply Tube is integral to the fuel delivery system of heavy-duty trucks. It ensures a steady flow of fuel to the engine, which is necessary for consistent engine operation. By maintaining a reliable fuel supply, it contributes to the overall efficiency and performance of the vehicle ².

Key Features

The Cummins 4989798 Fuel Supply Tube is constructed with materials that offer durability and resistance to the corrosive effects of fuel. Its design includes features that enhance its performance, such as precise fittings that ensure a secure connection within the fuel system. These characteristics contribute to the tube’s ability to withstand the demands of heavy-duty applications ³.

Benefits

Utilizing the Cummins 4989798 Fuel Supply Tube can lead to improved fuel efficiency, as it ensures that fuel is delivered to the engine without unnecessary loss or contamination. This can result in enhanced engine performance and increased reliability, as the engine operates with a consistent and clean fuel supply ⁴.

Installation Process

Installing the Cummins 4989798 Fuel Supply Tube requires careful attention to ensure a proper fit. The process involves disconnecting the old tube, aligning the new tube with the fuel system connections, and securing it in place. Tools such as wrenches and possibly a fuel system cleaner may be required. It is important to follow manufacturer guidelines to ensure correct installation ⁵.

Troubleshooting Common Issues

Common issues with fuel supply tubes may include leaks or blockages. To address these, one should inspect the tube for signs of wear or damage, check connections for tightness, and ensure that there are no obstructions within the tube. If a problem is identified, the appropriate repair or replacement steps should be taken ⁶.

Maintenance Tips

Regular maintenance of the Cummins 4989798 Fuel Supply Tube involves periodic inspection for signs of wear or damage. Cleaning the tube and its connections can prevent buildup that may affect performance. Adhering to recommended inspection intervals and performing routine checks can help maintain the tube’s condition and ensure continued reliable operation ⁷.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a diverse product range, Cummins has established a reputation for quality and reliability in the automotive and heavy-duty truck industry. The company’s commitment to customer satisfaction and technological advancement is reflected in its wide array of products, including the Cummins 4989798 Fuel Supply Tube ⁸.

Cummins Fuel Supply Tube 4989798 Compatibility

The Cummins Fuel Supply Tube part number 4989798 is designed to fit seamlessly with several engine models, ensuring optimal fuel delivery and engine performance. This part is integral to the fuel system of the engines, facilitating the transfer of fuel from the fuel tank to the engine’s fuel injection system.

QSC9 CM2250/QSL9 CM2250 and QSL9 CM2250

The Fuel Supply Tube 4989798 is compatible with the QSC9 CM2250 and QSL9 CM2250 engines. This compatibility ensures that the fuel supply system operates efficiently, maintaining the engine’s power and reliability. The part is engineered to meet the specific requirements of these engines, providing a reliable connection that can withstand the operational stresses of the engine.

QSL9 CM2350 L102

Similarly, the QSL9 CM2350 L102 engine also benefits from the use of the Cummins Fuel Supply Tube part number 4989798. This part is designed to integrate smoothly with the fuel system of the QSL9 CM2350 L102, ensuring that the engine receives a consistent and reliable fuel supply. The design of the tube ensures that it can handle the demands of this engine model, providing durability and performance over time.

By using the Cummins Fuel Supply Tube 4989798, engine owners can be assured of a reliable and efficient fuel delivery system, contributing to the overall performance and longevity of their engines.

Role of Part 4989798 Fuel Supply Tube in Engine Systems

The 4989798 Fuel Supply Tube is an integral component in the fuel delivery system of various engine setups. It is responsible for transporting fuel from the fuel tank to the fuel filter, ensuring a consistent and reliable supply of fuel to the engine.

In the context of fuel filter plumbing, the 4989798 Fuel Supply Tube connects the fuel tank to the fuel filter assembly. This connection is vital for maintaining the integrity of the fuel as it moves through the system. The tube ensures that fuel is delivered to the filter without contamination or loss of pressure, which is essential for the filter to perform its role effectively.

The tube also interfaces with other components such as the fuel pump and the fuel rail. In systems where a fuel pump is present, the 4989798 Fuel Supply Tube may connect to the pump outlet, facilitating the pressurized delivery of fuel. This pressurized fuel then travels through the tube to the fuel filter, where impurities are removed before the fuel reaches the fuel rail and injectors.

In more complex engine systems, the 4989798 Fuel Supply Tube might also be part of a network that includes fuel return lines. In such setups, the tube not only supplies fuel but also helps manage the return flow, ensuring that excess fuel is redirected back to the tank efficiently. This balance is key to maintaining optimal fuel pressure and temperature within the system.

Overall, the 4989798 Fuel Supply Tube plays a significant role in ensuring that the fuel delivery system operates smoothly, supporting the engine’s performance and reliability.

Conclusion

The Cummins 4989798 Fuel Supply Tube is a vital component in the fuel delivery system of heavy-duty trucks. Its role in ensuring a consistent and reliable fuel supply contributes to the overall efficiency and performance of the engine. Proper installation, maintenance, and troubleshooting are essential to maximize the benefits of this Cummins part.