4080761
Injector Fuel Supply Tube
Cummins®

Introduction

The Cummins Injector Fuel Supply Tube, identified by part number 4080761, is a critical component in the fuel system of heavy-duty trucks. It ensures efficient engine performance by facilitating the delivery of fuel to the injectors. This part is designed to maintain the precise fuel flow necessary for optimal engine operation, highlighting its significance within the fuel system ¹.

Basic Concepts of Injector Fuel Supply Tubes

An Injector Fuel Supply Tube is a conduit that transports fuel from the fuel tank or reservoir to the injectors. It operates within the fuel system to ensure a consistent and reliable supply of fuel under varying engine conditions. The tube’s role is vital in maintaining the fuel pressure and flow required for the injectors to function correctly, thereby contributing to the engine’s overall efficiency and performance ².

Purpose and Role in Truck Operation

The Cummins Injector Fuel Supply Tube (Part #4080761) serves a specific purpose in the operation of heavy-duty truck engines. It is responsible for delivering fuel from the fuel system to the injectors, ensuring that each cylinder receives the precise amount of fuel needed for combustion. This component contributes to the truck’s operation by supporting consistent engine performance, power output, and fuel efficiency ³.

Key Features

The Cummins Injector Fuel Supply Tube is characterized by several key features that enhance its functionality and durability. It is constructed from materials that resist corrosion and wear, ensuring longevity in demanding environments. The design includes precise engineering to maintain fuel pressure and flow, with features that prevent leaks and ensure a secure connection to other fuel system components.

Benefits

The Cummins Injector Fuel Supply Tube offers several advantages, including improved fuel delivery efficiency and enhanced engine performance. By ensuring a consistent fuel supply, it contributes to better fuel economy and may help in reducing emissions. Its durable construction and reliable operation support the overall efficiency and reliability of the engine ⁴.

Troubleshooting and Maintenance Suggestions

Common issues with the Injector Fuel Supply Tube may include leaks, blockages, or wear and tear. Diagnostic procedures for identifying problems can involve checking for fuel leaks, assessing fuel pressure, and inspecting the tube for signs of damage. Recommended maintenance practices include regular inspection for wear, ensuring connections are secure, and replacing the tube if signs of degradation are present to maintain optimal performance and longevity.

Integration with Cummins Engine Systems

The Cummins Injector Fuel Supply Tube integrates seamlessly with other components within Cummins engine systems. Its design ensures compatibility with various engine models, contributing to the overall engine efficiency and reliability. This integration supports the engine’s performance by ensuring a consistent and reliable fuel supply to the injectors.

Historical Context and Evolution

The development and evolution of fuel supply tubes in Cummins engines reflect a commitment to improving engine performance and reliability. Significant advancements have been made over time to enhance the durability, efficiency, and compatibility of these components with evolving engine technologies.

Cummins: A Brief Overview

Cummins Inc. is a leader in the automotive and heavy-duty truck industry, known for its commitment to innovation, quality, and customer satisfaction. With a diverse product portfolio, Cummins continues to advance engine technology, providing solutions that meet the demanding requirements of modern transportation and industrial applications.

Compatibility with Cummins Engines

• 6B5.9 Engine Series

  • The Injector Fuel Supply Tube 4080761 is specifically designed to fit seamlessly within the 6B5.9 engine series. This engine series is known for its robust construction and reliability, often used in heavy-duty applications.

• Other Cummins Engines

  • While the 4080761 is primarily associated with the 6B5.9, it may also be compatible with other Cummins engines that share similar fuel system architectures. This includes various models within the Cummins B and C series, which are widely used in both industrial and transportation sectors.

Installation and Function

• Installation

  • The installation of the Injector Fuel Supply Tube 4080761 requires precision to ensure a secure and leak-free connection. It is typically connected to the fuel injectors and the fuel pump, forming a crucial part of the fuel delivery pathway.

• Function

  • The primary function of this part is to transport fuel from the fuel pump to the injectors under high pressure. This ensures that the fuel is delivered in the correct quantity and at the right time, which is essential for the engine’s combustion process.

Importance in Engine Performance

• Performance

  • A properly functioning Injector Fuel Supply Tube is vital for maintaining engine performance. Any leaks or malfunctions in this part can lead to inefficient fuel delivery, resulting in reduced power output and increased fuel consumption.

• Durability

  • The 4080761 is designed to withstand the high pressures and temperatures within the engine’s fuel system. Its durability ensures a long service life, contributing to the overall reliability of the engine.

Conclusion

The Cummins Injector Fuel Supply Tube (Part #4080761) plays a crucial role in the efficient operation of heavy-duty truck engines. Its design and functionality are integral to maintaining optimal engine performance, fuel efficiency, and reliability. Regular maintenance and timely replacement of this part are essential to ensure the continued efficiency and longevity of the engine system.