4995474
Injector Fuel Supply Tube
Cummins®

The Fuel Injector Supply Tube, identified by part number 4995474, is a component manufactured by Cummins, a well-established name in the automotive industry. This tube is integral to the fuel delivery system of heavy-duty trucks, ensuring that fuel is efficiently transported from the tank to the injectors. Cummins is renowned for its commitment to producing high-quality components that enhance the performance and reliability of heavy-duty vehicles ¹.

Basic Concepts

Fuel injector supply tubes serve as conduits for delivering fuel from the tank to the injectors within an engine. They play a role in maintaining the integrity and efficiency of the fuel delivery process by providing a consistent and reliable pathway for fuel flow. The efficiency of this delivery is paramount for the optimal operation of the engine, as it ensures that the injectors receive the precise amount of fuel needed for combustion at any given moment ².

Purpose and Function

The 4995474 Fuel Injector Supply Tube is designed to facilitate the consistent delivery of fuel under pressure to the injectors in a truck’s engine. It contributes to maintaining a stable fuel pressure, which is vital for the injectors to operate correctly and deliver fuel in the right quantity and at the right time. This consistent fuel delivery is fundamental for the engine’s performance, efficiency, and overall operation ³.

Key Features

This Cummins part is constructed with materials and design elements that enhance its durability and performance. It is made from high-quality materials that resist wear and corrosion, ensuring longevity and reliability. The design of the tube includes features that facilitate easy installation and maintenance, as well as elements that enhance its performance under various operating conditions. These features contribute to the tube’s ability to withstand the demands of heavy-duty truck engines.

Benefits

Utilizing the 4995474 Fuel Injector Supply Tube in a truck’s engine system can lead to several benefits. These include improved fuel efficiency, as the tube ensures that fuel is delivered to the injectors with minimal loss or leakage. Enhanced engine performance is another advantage, as the consistent fuel delivery supports optimal combustion. Additionally, the tube’s reliability in demanding operating conditions contributes to the overall durability and efficiency of the engine.

Installation and Compatibility

Proper installation of the 4995474 Fuel Injector Supply Tube is crucial for ensuring its optimal performance and compatibility with Cummins engines. Installation procedures should follow manufacturer guidelines to ensure that the tube is securely fitted and functions as intended. Specific requirements or considerations may include ensuring the tube is correctly aligned and sealed to prevent leaks and maintain fuel pressure integrity.

Maintenance and Troubleshooting

Routine maintenance of the 4995474 Fuel Injector Supply Tube is important for its longevity and performance. This includes regular inspection intervals to check for signs of wear, corrosion, or damage. Cleaning procedures may be necessary to remove any contaminants that could affect fuel flow. Common troubleshooting steps for issues such as leaks or blockages involve inspecting the tube and connections for damage or misalignment and addressing any identified problems promptly to maintain the efficiency of the fuel delivery system.

Cummins Overview

Cummins, the manufacturer of the 4995474 Fuel Injector Supply Tube, has a long-standing reputation in the automotive industry for producing high-quality components. With a history of innovation and excellence, Cummins is committed to enhancing the performance and reliability of heavy-duty trucks. Their components, including the Fuel Injector Supply Tube, are designed with precision and quality in mind, reflecting Cummins’ dedication to excellence in the automotive sector.

Cummins Fuel Injector Supply Tube (Part 4995474) Compatibility

The Cummins Fuel Injector Supply Tube (Part 4995474) is a critical component in the fuel delivery system of various Cummins engines. This part ensures that fuel is efficiently and accurately delivered from the fuel pump to the fuel injectors, maintaining optimal engine performance.

B3.3 Engine Series

The B3.3 engine series, known for its reliability and efficiency, utilizes the Fuel Injector Supply Tube (Part 4995474) to maintain the integrity of the fuel delivery system. This part is essential in ensuring that the fuel injectors receive the correct amount of fuel, which is crucial for the engine’s performance and longevity.

Grouping of Compatible Engines

The Cummins Fuel Injector Supply Tube (Part 4995474) is designed to fit seamlessly with several engine models within the B3.3 series. This compatibility ensures that the part can be used across different engine configurations without requiring modifications, simplifying maintenance and repair processes.

• B3.3 Engines: The part is specifically engineered to fit the B3.3 engine models, ensuring a precise fit and reliable performance.
• Other Cummins Engines: While the primary focus is on the B3.3 series, this supply tube may also be compatible with other Cummins engines that share similar design and specifications. It is always recommended to verify compatibility with the specific engine model before installation.

Role of Part 4995474 Fuel Injector Supply Tube in Engine Systems

The 4995474 Fuel Injector Supply Tube is an essential component in the fuel delivery system of an engine. It serves as a conduit for transporting fuel from the fuel rail to the individual fuel injectors. This part ensures a consistent and regulated flow of fuel, which is vital for the precise operation of the injectors.

Integration with Injector Plumbing

In the context of injector plumbing, the 4995474 Fuel Injector Supply Tube interfaces directly with the fuel rail and the fuel injectors. The fuel rail, a pressurized pipeline, distributes fuel to each injector. The supply tube connects to the fuel rail at one end and to the fuel injector at the other, forming a sealed pathway for fuel delivery.

Function within the Fuel System

The supply tube works in conjunction with other components such as the fuel pump, which pressurizes the fuel, and the fuel filter, which ensures that any contaminants are removed before the fuel reaches the injectors. The consistent pressure maintained by the fuel pump is essential for the injectors to atomize the fuel properly, leading to efficient combustion.

Interaction with Fuel Injectors

Each fuel injector is equipped with a nozzle that sprays fuel into the combustion chamber. The 4995474 Fuel Injector Supply Tube must be precisely aligned with the injector to ensure a leak-free connection. This alignment is critical for maintaining the integrity of the fuel system and ensuring that the injectors receive the correct amount of fuel at the right pressure.

Role in Engine Performance

The efficient operation of the 4995474 Fuel Injector Supply Tube directly influences engine performance. By ensuring a steady supply of fuel to the injectors, it helps maintain consistent engine power, fuel efficiency, and emissions levels. Any disruption in the fuel supply can lead to misfires, reduced power, and increased emissions.

Maintenance and Inspection

Regular inspection of the 4995474 Fuel Injector Supply Tube is recommended to identify any signs of wear, corrosion, or leaks. Maintaining the integrity of this component is essential for the reliable operation of the fuel injection system.

Conclusion

The 4995474 Fuel Injector Supply Tube is a critical component in the fuel delivery system of Cummins engines, particularly within the B3.3 series. Its role in ensuring a consistent and regulated flow of fuel to the injectors is vital for engine performance, efficiency, and reliability. Proper installation, maintenance, and compatibility checks are essential for maximizing the benefits of this Cummins part.