4995472
Injector Fuel Supply Tube
Cummins®

Introduction

The Fuel Injector Supply Tube, identified by part number 4995472, is a component manufactured by Cummins, a well-established name in the automotive and heavy-duty truck industry. This tube is integral to the fuel system of heavy-duty truck engines, facilitating the efficient delivery of fuel to the injectors. Cummins is renowned for its commitment to innovation, quality, and performance, making this component a reliable choice for maintaining engine efficiency and performance ².

Function and Operation

The Fuel Injector Supply Tube operates within the fuel system by channeling fuel from the fuel rail to the individual injectors. This component ensures a consistent and precise supply of fuel, which is crucial for the injectors to function correctly. The tube’s design allows it to withstand high pressure and temperature conditions typical in heavy-duty truck engines, ensuring reliable fuel delivery under various operating conditions ¹.

Key Features

The Fuel Injector Supply Tube is engineered with several key features that enhance its performance and durability. Constructed from high-quality materials, it is designed to resist corrosion and wear, ensuring longevity in demanding environments. The precision engineering of the tube ensures a tight fit within the fuel system, minimizing the risk of leaks and maintaining fuel pressure integrity. Additionally, the tube’s design facilitates easy installation and replacement, contributing to maintenance efficiency.

Benefits

The advantages of the Fuel Injector Supply Tube include improved fuel delivery efficiency, which contributes to enhanced engine performance. By ensuring a consistent and precise fuel supply to the injectors, the tube helps maintain optimal combustion, leading to better fuel economy and reduced emissions. Furthermore, the tube’s robust construction and precise engineering contribute to the overall reliability and durability of the fuel system.

Installation and Compatibility

Proper installation of the Fuel Injector Supply Tube is crucial for ensuring its optimal performance and compatibility with Cummins engines. It is designed to meet specific requirements and considerations, ensuring a secure fit within the fuel system. Adherence to manufacturer guidelines during installation is recommended to maintain the integrity of the fuel system and ensure the tube functions as intended.

Maintenance and Troubleshooting

Routine maintenance of the Fuel Injector Supply Tube is important for ensuring its continued optimal performance. This includes regular inspections for signs of wear, corrosion, or leaks. Addressing any issues promptly can prevent more significant problems down the line. Common troubleshooting tips include checking for proper fuel pressure and ensuring there are no obstructions within the tube that could impede fuel flow.

Safety Considerations

When working with the Fuel Injector Supply Tube, it is important to observe safety precautions and best practices. This includes proper handling to avoid damage to the tube, secure storage to prevent contamination, and appropriate disposal procedures for any old or damaged components. Adhering to these safety measures helps ensure the safe and effective operation of the fuel system.

Regulatory Compliance

The Fuel Injector Supply Tube complies with industry standards and regulations governing the use of such components in commercial truck applications. This compliance ensures that the tube meets the necessary safety, performance, and environmental standards, contributing to its reliability and effectiveness in heavy-duty truck engines.

Cummins Overview

Cummins, the manufacturer of the Fuel Injector Supply Tube, has a long-standing reputation in the automotive industry for its commitment to innovation, quality, and performance. With a history of developing reliable and efficient engine components, Cummins continues to lead the way in providing solutions that meet the demanding requirements of heavy-duty truck applications. Their dedication to excellence is evident in the design and construction of the Fuel Injector Supply Tube, ensuring it delivers on the promise of enhanced engine performance and reliability ².

Compatibility with Cummins Engines

B3.3 Engine Series

The B3.3 engine series, known for its robust design and reliability, incorporates the 4995472 Fuel Injector Supply Tube. This part is essential in ensuring that the fuel injectors receive a consistent and uninterrupted fuel supply, which is crucial for the engine’s smooth operation. The B3.3 engines are typically used in a variety of applications, including agricultural machinery, construction equipment, and industrial power systems.

Group Compatibility

The 4995472 Fuel Injector Supply Tube is designed to fit seamlessly within the fuel systems of the B3.3 engine series. Its compatibility extends to various configurations and models within this series, ensuring that it can be used across different engine variants. This part’s design and material quality make it a reliable choice for maintaining the integrity of the fuel delivery system in these engines.

Role in Engine Systems

The Fuel Injector Supply Tube is an integral component in the fuel delivery system of an engine. It is responsible for transporting pressurized fuel from the fuel rail to the individual fuel injectors. This ensures a consistent and regulated supply of fuel, which is essential for the injectors to atomize the fuel properly before it enters the combustion chamber.

Integration with Injector Plumbing

In the context of injector plumbing, the Fuel Injector Supply Tube interfaces directly with the fuel rail and the injectors. The fuel rail, a pressurized conduit, distributes fuel to each injector. The Supply Tube connects to the fuel rail at one end and to the injector at the other, forming a sealed pathway for fuel flow. This connection is typically secured with O-rings or gaskets to prevent fuel leaks and maintain system integrity.

Function within the Fuel System

Within the fuel system, the Supply Tube works in conjunction with the fuel pump, which pressurizes the fuel, and the fuel filter, which removes impurities. The consistent pressure maintained by the fuel pump is transmitted through the Supply Tube to the injectors. This pressurized fuel is then atomized by the injectors into a fine mist, optimizing combustion efficiency and engine performance.

Interaction with Engine Control Unit (ECU)

The Fuel Injector Supply Tube also plays a role in the feedback loop with the Engine Control Unit (ECU). The ECU monitors various parameters such as engine load, RPM, and air-fuel ratio. Based on this data, the ECU adjusts the fuel delivery by controlling the injectors’ opening and closing times. The Supply Tube ensures that the fuel is delivered precisely when needed, allowing the ECU to maintain optimal combustion conditions.

Maintenance and System Health

Regular maintenance of the Fuel Injector Supply Tube is important for the overall health of the fuel system. Over time, the tube may develop cracks or become clogged with debris, which can disrupt fuel flow and lead to inefficient combustion. Inspecting and replacing the Supply Tube as part of routine maintenance can prevent such issues and ensure the engine operates smoothly.

Conclusion

The Fuel Injector Supply Tube (Part #4995472) by Cummins is a critical component in the fuel delivery system of heavy-duty truck engines. Its role in ensuring a consistent and precise fuel supply to the injectors is vital for maintaining engine performance and efficiency. Proper installation, routine maintenance, and adherence to safety and regulatory standards are essential for maximizing the benefits of this Cummins part. By integrating seamlessly with the fuel rail, injectors, and ECU, the Fuel Injector Supply Tube contributes significantly to the overall reliability and performance of the engine’s fuel system.