4995476
Injector Fuel Supply Tube
Cummins®

Introduction

The Fuel Injector Supply Tube 4995476, manufactured by Cummins Inc., is a critical component in the fuel delivery system of heavy-duty trucks. This part ensures efficient fuel transport to the injectors, contributing to the engine’s performance and efficiency. Cummins, a renowned name in diesel engine and component manufacturing, designs this supply tube to meet the rigorous demands of heavy-duty applications ¹.

Basic Concepts of Fuel Injector Supply Tubes

A Fuel Injector Supply Tube serves as a conduit within the fuel system, facilitating the transfer of fuel from the fuel rail to the injectors. This function is essential for maintaining consistent fuel pressure and flow, directly influencing the engine’s performance. The tube ensures a steady supply of fuel, contributing to the engine’s overall efficiency and power output ².

Purpose and Function

The Fuel Injector Supply Tube 4995476 provides a direct pathway for fuel to reach the injectors, ensuring each injector receives the precise amount of fuel needed for combustion. This is vital for maintaining engine efficiency and performance. The tube’s design allows for optimal fuel flow, reducing the risk of fuel starvation and ensuring smooth engine operation under various conditions ³.

Key Features

This Cummins part is constructed from high-quality materials, ensuring durability and resistance to the high pressures and temperatures within the fuel system. Its design includes precise fittings and connections that ensure a secure and leak-free installation. Additionally, the tube may feature reinforced sections to withstand the rigors of heavy-duty use, enhancing its performance and longevity ⁴.

Benefits

The use of the Fuel Injector Supply Tube 4995476 offers several advantages, including improved fuel efficiency due to its role in maintaining consistent fuel pressure and flow. This component also contributes to enhanced engine performance by ensuring that the injectors receive the correct amount of fuel for optimal combustion. Furthermore, its reliability in heavy-duty applications makes it a valuable component for maintaining engine efficiency and durability.

Installation and Compatibility

Proper installation of the Fuel Injector Supply Tube 4995476 is crucial for ensuring its effectiveness and the overall performance of the fuel system. Installation guidelines should be followed to ensure a secure and leak-free connection. Compatibility with specific engine models and systems is important, and it is recommended to consult the manufacturer’s specifications to ensure the correct application.

Maintenance and Troubleshooting

Regular maintenance of the Fuel Injector Supply Tube 4995476 is recommended to ensure its longevity and efficiency. This includes checking for leaks, ensuring connections are secure, and inspecting the tube for signs of wear or damage. Common issues may include fuel leaks or reduced fuel flow, which can often be addressed by tightening connections or replacing worn components. Following the manufacturer’s maintenance guidelines can help prevent these issues and ensure the component continues to perform effectively.

Safety Considerations

When working with the Fuel Injector Supply Tube 4995476, it is important to follow safety guidelines to prevent accidents and ensure personal safety. This includes wearing appropriate personal protective equipment, ensuring the engine is off and cool before beginning work, and following proper handling and installation procedures. Additionally, being aware of the high-pressure fuel system and taking precautions to avoid fuel spills or leaks is crucial.

Cummins Overview

Cummins Inc. is a global leader in the design, manufacture, and distribution of diesel and alternative fuel engines, as well as related technologies. With a history spanning over a century, Cummins has established a reputation for quality, innovation, and reliability in the diesel engine and component manufacturing industry. The company’s commitment to excellence is reflected in its wide range of products, including the Fuel Injector Supply Tube 4995476, designed to meet the rigorous demands of heavy-duty applications.

Cummins Fuel Injector Supply Tube (Part 4995476) Compatibility

The Cummins Fuel Injector Supply Tube, identified by part number 4995476, is a critical component in the fuel delivery system of various Cummins engines. This part ensures the efficient and reliable transfer of fuel from the fuel pump to the fuel injectors, maintaining the engine’s performance and fuel efficiency.

B3.3 Engine Series

The B3.3 engine series is known for its robust design and reliability, often used in heavy-duty applications. The Fuel Injector Supply Tube (4995476) is integral to the B3.3 engine’s fuel system, providing a secure and leak-free connection between the fuel pump and the injectors. This ensures that the engine receives the correct fuel pressure and flow, which is essential for optimal combustion and power output.

Group Compatibility

The part 4995476 is designed to fit seamlessly within the B3.3 engine series, ensuring compatibility across various models within this group. This compatibility extends to other similar Cummins engines that utilize the same fuel delivery architecture, making it a versatile component for multiple engine types.

By ensuring a precise fit and reliable performance, the Fuel Injector Supply Tube (4995476) plays a crucial role in the overall functionality of the engine, contributing to its longevity and efficiency.

Role of Part 4995476 Fuel Injector Supply Tube in Engine Systems

The Fuel Injector Supply Tube, identified by part number 4995476, is an essential component in the fuel delivery system of an engine. Its primary function is to transport fuel from the fuel rail to the individual fuel injectors. This part is integral to ensuring that each injector receives a consistent and precise amount of fuel, which is vital for optimal engine performance.

Integration with Fuel Rail

The Fuel Injector Supply Tube connects directly to the fuel rail, which is a pressurized conduit that distributes fuel to each injector. The tube ensures a secure and leak-free connection, maintaining the integrity of the fuel system’s pressure. This connection is typically achieved through O-rings or gaskets that seal the interface between the tube and the rail.

Interaction with Fuel Injectors

Each fuel injector is supplied with fuel through the Fuel Injector Supply Tube. The tube’s design allows for efficient fuel flow, minimizing resistance and ensuring that the injectors operate within their specified parameters. The consistent fuel supply is essential for the injectors to atomize the fuel properly, which in turn facilitates better combustion efficiency and reduced emissions.

Role in Injector Plumbing

In the context of injector plumbing, the Fuel Injector Supply Tube is a key element. It forms part of the high-pressure fuel lines that connect the fuel rail to the injectors. The tube must be robust enough to withstand the high pressures involved in fuel delivery while remaining flexible enough to accommodate the engine’s movement and vibrations.

Contribution to Fuel System Integrity

The Fuel Injector Supply Tube plays a significant role in maintaining the overall integrity of the fuel system. By providing a reliable pathway for fuel, it helps prevent fuel leaks, which can be hazardous and lead to inefficient engine operation. The tube’s material and construction are designed to resist corrosion and wear, ensuring long-term durability.

Support for Engine Management System (EMS)

The precise fuel delivery enabled by the Fuel Injector Supply Tube is closely monitored by the Engine Management System (EMS). The EMS relies on consistent fuel flow to make real-time adjustments to fuel delivery based on engine load, speed, and other operating conditions. The tube’s role in this system is to provide a stable and reliable fuel supply that the EMS can depend on for accurate control.

Conclusion

The Fuel Injector Supply Tube 4995476 is a vital component that ensures the efficient and reliable delivery of fuel to the injectors, supporting the overall performance and efficiency of the engine. Its design, compatibility, and role in the fuel delivery system make it an essential part of Cummins’ heavy-duty engine applications.