5446735
Injector Fuel Supply Tube
Cummins®

The Injector Fuel Supply Tube, part number 5446735, manufactured by Cummins, is a component designed for use in heavy-duty truck engines. Cummins, a well-established name in the automotive industry, specializes in diesel engines and related components. This particular fuel supply tube is integral to the efficient operation of truck engines, ensuring reliable fuel delivery to the injectors.

Basic Concepts

Injector fuel supply tubes are vital components in the fuel delivery system of diesel engines. They facilitate the transfer of fuel from the fuel tank to the injectors, ensuring that the fuel is delivered at the correct pressure and volume. These tubes interact with various other components, including the fuel pump, fuel filter, and injectors, to maintain a consistent fuel supply throughout the engine’s operation ¹.

Purpose and Function

The Injector Fuel Supply Tube 5446735 plays a role in the fuel delivery system by transporting fuel from the fuel pump to the injectors. It ensures that fuel is delivered under consistent pressure, which is crucial for the injectors to atomize the fuel properly. This atomization is necessary for efficient combustion within the engine cylinders, contributing to overall engine performance and efficiency ².

Key Features

The Injector Fuel Supply Tube 5446735 is constructed from high-quality materials that offer durability and resistance to the high pressures and temperatures encountered in diesel engines. Its design includes precise specifications to ensure a secure fit and reliable performance. Unique characteristics such as reinforced sections and corrosion-resistant coatings enhance its longevity and effectiveness in demanding operating conditions.

Benefits

Utilizing the Injector Fuel Supply Tube 5446735 can lead to several advantages. These include improved fuel efficiency due to consistent fuel delivery, enhanced engine performance resulting from optimal fuel atomization, and increased reliability under various operating conditions. The robust construction of the tube ensures it can withstand the rigors of heavy-duty truck use, providing long-term value to the operator.

Installation and Compatibility

Proper installation of the Injector Fuel Supply Tube 5446735 is crucial for ensuring its effectiveness and the overall performance of the engine. Installation procedures should follow manufacturer guidelines to ensure compatibility with specific engine models and configurations. Attention to detail during installation helps prevent issues such as leaks or improper fuel delivery, which could affect engine performance.

Maintenance and Troubleshooting

Routine maintenance of the Injector Fuel Supply Tube 5446735 involves inspecting for signs of wear, corrosion, or damage. Regular checks can help identify potential issues before they lead to more significant problems. Troubleshooting common issues such as leaks, blockages, or fuel delivery problems may involve inspecting connections, cleaning or replacing filters, and ensuring the tube is free from obstructions.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the automotive industry, particularly in diesel engines and components. Their product offerings cater to a wide range of applications, from on-highway to off-highway and industrial uses, underscoring their commitment to meeting diverse customer needs.

Cummins Injector Fuel Supply Tube (Part 5446735)

The Cummins Injector Fuel Supply Tube, part number 5446735, is a critical component in the fuel delivery system of various Cummins engines. This part is designed to ensure that fuel is efficiently and accurately delivered to the injectors, which is essential for optimal engine performance and fuel efficiency.

Compatibility with Cummins Engines

The Injector Fuel Supply Tube is compatible with several Cummins engine models, including:

• ISC CM850
• ISL9 CM2150 SN
• QSC8.3 CM850 (CM2850)
• QSL8.9 CM2150 L141
• QSL9 CM850 (CM2850)

Grouping of Compatible Engines

• ISC CM850 and QSC8.3 CM850 (CM2850): These engines are part of the Cummins QSC series, known for their robust design and reliability in various applications, including heavy-duty trucks and industrial machinery.
• ISL9 CM2150 SN and QSL8.9 CM2150 L141: These engines belong to the Cummins QSL series, which is engineered for high performance and efficiency in demanding environments.
• QSL9 CM850 (CM2850): This engine is also part of the QSL series, designed to deliver superior power and fuel efficiency.

Each of these engines relies on the Injector Fuel Supply Tube to maintain the integrity of the fuel delivery system, ensuring that the injectors receive the correct amount of fuel at the right pressure. This part is crucial for maintaining engine performance and longevity.

Role of Part 5446735 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, designated as part 5446735, is an essential component in the fuel delivery system of an engine. It works in conjunction with several other components to ensure efficient and precise fuel delivery to the combustion chambers.

Integration with the Fuel Manifold

The Injector Fuel Supply Tube connects directly to the fuel manifold, which is responsible for distributing fuel to individual injectors. This tube ensures a consistent and regulated flow of fuel from the manifold to the injectors, maintaining the required pressure and volume for optimal engine performance.

Interaction with Injector Plumbing

As part of the injector plumbing system, the Injector Fuel Supply Tube plays a key role in transporting fuel from the manifold to the injectors. It is designed to withstand high pressures and temperatures, ensuring that fuel is delivered without leaks or disruptions. This reliable fuel transport is vital for the injectors to function correctly, spraying the precise amount of fuel into the combustion chambers.

Coordination with Cylinder Head and Injectors

The tube is strategically positioned to interface with the cylinder head, where the injectors are typically mounted. This proximity allows for a shorter fuel path, reducing the chances of fuel degradation or pressure loss. The Injector Fuel Supply Tube ensures that each injector receives a consistent fuel supply, which is essential for balanced combustion across all cylinders.

Impact on Connecting Rod and Piston Performance

Consistent and precise fuel delivery directly influences the performance of the connecting rod and piston. When the Injector Fuel Supply Tube ensures that fuel is delivered accurately to the injectors, it contributes to uniform combustion. This uniformity reduces stress on the connecting rod and piston, leading to smoother engine operation and enhanced durability.

Role in Overall Engine Performance

The efficient operation of the Injector Fuel Supply Tube is integral to the engine’s overall performance. By ensuring that fuel is delivered consistently and under the correct pressure, this component helps maintain engine efficiency, power output, and emissions control. Its reliable function is a cornerstone of the fuel delivery system, supporting the engine’s ability to perform under various operating conditions.

Conclusion

The Injector Fuel Supply Tube 5446735 is a critical component in the fuel delivery system of Cummins engines. Its role in ensuring consistent and precise fuel delivery to the injectors is vital for maintaining engine performance, efficiency, and reliability. Proper installation, maintenance, and understanding of its function and compatibility with various engine models are essential for maximizing the benefits of this Cummins part.