4978615
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4978615 Fuel Supply Tube is a component designed for use in the fuel systems of heavy-duty trucks. Its primary role is to facilitate the transfer of fuel from the tank to the engine, ensuring a steady and reliable fuel supply under various driving conditions. This component is integral to the efficient operation of Cummins engines, contributing to their performance and durability ¹.

Purpose and Function

The Cummins 4978615 Fuel Supply Tube plays a significant role in the fuel delivery system by transporting fuel from the tank to the engine. It is engineered to maintain a consistent fuel flow, which is vital for the engine’s operation across different driving scenarios. The tube’s design allows it to handle the pressures and demands of heavy-duty applications, ensuring that the engine receives the necessary fuel to operate efficiently ².

Key Features

The Cummins 4978615 Fuel Supply Tube is constructed from high-quality materials that offer durability and resistance to the corrosive effects of fuel. Its design includes features that enhance its performance and longevity, such as reinforced connections and a smooth interior to minimize fuel flow resistance. These attributes contribute to the tube’s reliability and efficiency in demanding environments ³.

Benefits

Utilizing the Cummins 4978615 Fuel Supply Tube offers several advantages. It contributes to improved fuel efficiency by ensuring a consistent and clean fuel supply to the engine. The tube’s compatibility with Cummins engines enhances the overall reliability of the fuel system. Additionally, its design and construction support long-term durability, reducing the need for frequent replacements.

Installation and Compatibility

Proper installation of the Cummins 4978615 Fuel Supply Tube is crucial for its effective operation. It requires careful alignment and secure connection to both the fuel tank and the engine’s fuel system. Compatibility with various Cummins engine models ensures that it can be used across a range of heavy-duty truck applications, providing flexibility for fleet managers and maintenance professionals.

Maintenance and Troubleshooting

To ensure optimal performance, regular maintenance of the Cummins 4978615 Fuel Supply Tube is recommended. This includes checking for signs of wear or damage and ensuring all connections are secure. Common issues may include fuel leaks or reduced fuel flow, which can often be addressed by inspecting and tightening connections or replacing worn components.

Safety Considerations

When working with the Cummins 4978615 Fuel Supply Tube, it is important to follow safety practices to prevent accidents and ensure the integrity of the fuel system. This includes handling fuel system components with care, using appropriate tools for installation and maintenance, and ensuring all seals and connections are properly made to prevent fuel leaks.

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 commitment to quality, Cummins serves customers in approximately 190 countries and territories through a network of company-owned and independent distributor facilities and dealerships. The company’s product range includes diesel and natural gas engines, as well as related technologies that enhance engine performance and efficiency.

Cummins Fuel Supply Tube 4978615 Compatibility

The Cummins Fuel Supply Tube part number 4978615 is designed to fit seamlessly within a range of Cummins diesel engines. Specifically, this part is compatible with the following engine models:

• QSK19 CM2350 K105
• QSK19 CM850 MCRS

This fuel supply tube is integral to the engine’s fuel delivery system, ensuring efficient and reliable fuel transfer from the fuel tank to the engine. It is engineered to withstand the rigors of heavy-duty operations, providing durability and performance that align with Cummins’ reputation for quality and reliability.

In the QSK19 CM2350 K105 and QSK19 CM850 MCRS engines, the fuel supply tube is a critical component that supports the engine’s overall functionality. Its precise fit and robust construction ensure that fuel is delivered consistently, which is essential for maintaining engine performance and longevity.

By integrating this fuel supply tube into the engine’s design, Cummins ensures that the fuel system operates smoothly, reducing the likelihood of fuel delivery issues that could affect engine performance. This part’s compatibility with both the QSK19 CM2350 K105 and QSK19 CM850 MCRS models highlights its versatility and importance in maintaining the engine’s efficiency and reliability.

Role of Part 4978615 Fuel Supply Tube in Engine Systems

The part 4978615 Fuel Supply Tube is an essential component in the fuel delivery system of an engine. It facilitates the smooth and efficient transfer of fuel from the fuel tank to the engine’s fuel filter and subsequently to the fuel injectors or carburetor.

In modern fuel-injected engines, the Fuel Supply Tube connects the fuel tank to the fuel filter, ensuring that any contaminants or debris are removed from the fuel before it reaches the injectors. This clean fuel supply is vital for maintaining the performance and longevity of the fuel injectors. The tube also helps maintain consistent fuel pressure, which is monitored by the fuel pressure regulator, ensuring optimal engine performance.

In carbureted engines, the Fuel Supply Tube plays a similar role by delivering fuel from the tank to the carburetor. It ensures a steady fuel flow, which is mixed with air before entering the combustion chamber. This consistent fuel supply is important for maintaining the engine’s power output and efficiency.

Overall, the Fuel Supply Tube is a key component in ensuring that the engine receives a clean and consistent fuel supply, which is essential for reliable operation and performance.

Conclusion

The Cummins 4978615 Fuel Supply Tube is a critical component in the fuel delivery system of heavy-duty engines, ensuring efficient and reliable fuel transfer. Its high-quality construction, compatibility with various Cummins engine models, and the benefits it offers in terms of fuel efficiency and system reliability make it an essential part for maintaining engine performance and longevity.