4988807
Injector Fuel Supply Tube
Cummins®

Introduction

The Injector Fuel Supply Tube 4988807, manufactured by Cummins, is a critical component in the fuel system of commercial trucks. This part ensures the efficient delivery of fuel to the injectors, contributing to the engine’s performance and reliability.

Basic Concepts of Injector Fuel Supply Tubes

Injector fuel supply tubes are essential for transporting fuel from the tank to the injectors, ensuring a consistent and precise fuel supply. This process is vital for maintaining engine performance and achieving optimal combustion and power output ¹.

Purpose and Role in Truck Operation

The Injector Fuel Supply Tube 4988807 delivers fuel to the injectors, ensuring a steady and accurate fuel supply for efficient combustion. This consistent fuel delivery enhances engine efficiency and ensures smooth truck operation ².

Key Features

The Injector Fuel Supply Tube 4988807 is designed with specific features to enhance performance and durability. These include a material composition resistant to high pressures and temperatures, precise diameter and length for optimal fuel flow, and unique characteristics such as reinforced sections or specialized coatings for reliability and longevity ³.

Benefits

Using the Injector Fuel Supply Tube 4988807 offers benefits such as improved fuel delivery, enhanced engine performance, increased efficiency, and reduced likelihood of fuel system failures, contributing to the truck’s overall performance and reliability ⁴.

Troubleshooting and Maintenance

Common issues with the Injector Fuel Supply Tube 4988807 include leaks, blockages, or wear and tear. Regular inspections, checking for wear, ensuring proper connections, and replacing the tube if damaged are recommended to maintain optimal performance and longevity.

Installation and Compatibility

Proper installation of the Injector Fuel Supply Tube 4988807 is crucial for its effectiveness. Following manufacturer guidelines for fitting and securing the tube within the fuel system and ensuring compatibility with different truck models and engine types is essential for correct function.

Performance Enhancements

The Injector Fuel Supply Tube 4988807 improves engine performance by ensuring a consistent and accurate fuel supply, enhancing fuel efficiency, power output, and contributing to reduced emissions, making the truck more environmentally friendly.

Safety Considerations

Safety is paramount when handling, installing, and maintaining the Injector Fuel Supply Tube 4988807. Proper handling practices, secure connections, and regular maintenance checks are essential to prevent safety hazards.

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its high-quality engines and components. Their product lineup includes a wide range of engines and components designed to meet the diverse needs of the commercial trucking sector.

Cummins Injector Fuel Supply Tube (Part 4988807)

The Cummins Injector Fuel Supply Tube, part number 4988807, is crucial for the fuel delivery system in several Cummins engines. It ensures efficient and accurate fuel delivery to the injectors, essential for optimal engine performance and efficiency.

Compatibility with Cummins Engines

The Injector Fuel Supply Tube is designed for the following Cummins engines:

• ISB CM850
• QSB5.9 CM850

These engines are known for their reliability and performance in various applications.

Importance of the Fuel Supply Tube

The Injector Fuel Supply Tube provides a direct path for fuel from the fuel pump to the injectors. It must be of high quality and precision-engineered to ensure consistent and leak-free fuel flow. Any issues can lead to significant engine performance problems.

Installation and Maintenance

Proper installation is crucial to prevent fuel leaks. Regular maintenance checks should be performed to ensure the tube is in good condition and properly connected. Any signs of wear or damage should be addressed promptly.

Application in Various Engines

The Injector Fuel Supply Tube’s design allows compatibility with multiple Cummins engine models, ensuring reliable performance and extended engine life.

Role of Part 4988807 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, part number 4988807, is integral to the fuel delivery system, ensuring efficient and reliable fuel injection.

Interaction with Injector Plumbing

Part 4988807 connects the fuel rail to the individual fuel injectors, ensuring a secure and leak-free pathway for fuel. This is essential for precise fuel delivery and engine performance.

Contribution to Engine Performance

The accuracy and timing of fuel injection are critical for engine performance. Part 4988807 provides a reliable fuel supply line, ensuring consistent fuel delivery and optimal engine operation.

Coordination with Camshaft

The camshaft’s timing is closely related to the fuel injection process. Part 4988807 ensures fuel is available precisely when the injectors are commanded to open by the ECU, based on the camshaft’s position. This synchronization is key to achieving smooth and powerful engine operation.

Integration with Other Parts

Part 4988807 must be compatible with the fuel rail and injectors. Ensuring compatibility with existing fuel system components is important for performance and engine protection.

Conclusion

The Injector Fuel Supply Tube 4988807 is a vital component in the fuel delivery system, ensuring efficient and reliable fuel injection. Its proper installation, maintenance, and compatibility with other engine components are essential for optimal engine performance and longevity.