4380774
Flexible Hose
Cummins®

The Cummins 4380774 Flexible Hose is a component designed for use in commercial trucks. It serves a specific function within the truck’s systems, facilitating the connection between various parts and enabling the transport of fluids. Understanding its purpose and operation is key to maintaining the efficiency and reliability of commercial vehicles.

Basic Concepts of Flexible Hoses

Flexible hoses are used in automotive systems to connect different components, allowing for movement and vibration without compromising the integrity of the connection. They are typically made from materials that offer flexibility, durability, and resistance to the fluids they transport. In automotive applications, flexible hoses play a role in various systems, including fuel, coolant, and brake systems, by providing a reliable means of fluid transfer between rigid components ¹.

Purpose of the Cummins 4380774 Flexible Hose

The Cummins 4380774 Flexible Hose is designed to connect specific systems within a truck, facilitating the transport of fluids. It is engineered to withstand the pressures and temperatures associated with its intended use, ensuring reliable performance in demanding environments. The hose plays a role in maintaining the operational integrity of the systems it connects by providing a flexible yet durable link that can accommodate the movement and vibration inherent in truck operations ².

Key Features

The Cummins 4380774 Flexible Hose features a composition that includes materials selected for their flexibility, durability, and resistance to the specific fluids it is designed to transport. Its design specifications ensure it can withstand the operational pressures and temperatures of its application, while its flexibility allows it to accommodate the movement and vibration typical in truck operations. These features contribute to the hose’s reliability and longevity in commercial truck applications ³.

Benefits

The Cummins 4380774 Flexible Hose offers several benefits, including improved flexibility over rigid hoses, which reduces the risk of leaks due to movement or vibration. Its durable construction enhances its resistance to wear and tear, contributing to a longer service life. Additionally, the hose’s design facilitates ease of installation, reducing downtime during maintenance or repair procedures ⁴.

Installation Considerations

When installing the Cummins 4380774 Flexible Hose, it is important to follow guidelines and best practices to ensure proper fit and function. This includes using the necessary tools for a secure connection, following steps for proper installation to avoid damage to the hose or connected components, and being aware of common pitfalls such as over-tightening or incorrect alignment, which can lead to leaks or reduced hose life.

Troubleshooting Common Issues

Common issues with the Cummins 4380774 Flexible Hose may include leaks, cracks, or reduced flexibility. Troubleshooting these issues involves identifying the source of the problem, whether it be improper installation, wear and tear, or exposure to conditions beyond the hose’s design specifications. Suggested steps for addressing these issues include inspecting the hose for signs of damage, ensuring proper installation techniques are used, and replacing the hose if it shows signs of significant wear or compromise.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 4380774 Flexible Hose, regular maintenance is recommended. This includes inspecting the hose at regular intervals for signs of wear, damage, or leaks, cleaning it according to manufacturer recommendations, and considering replacement if it shows significant signs of degradation or if it has reached the end of its service life as indicated by the manufacturer.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a broad product range, Cummins serves commercial, industrial, and vehicle markets worldwide. The company is known for its commitment to quality, reliability, and performance in the commercial truck industry, offering a wide array of parts and systems designed to enhance the efficiency and durability of commercial vehicles.

Cummins Flexible Hose 4380774 Compatibility

The Cummins Flexible Hose part number 4380774 is designed to fit seamlessly with a range of Cummins engines, ensuring optimal performance and durability. This part is engineered to meet the stringent requirements of the QSK60, CM850, and MCRS engines, providing a reliable connection in various applications.

QSK60 and CM850 Engines

For the QSK60 and CM850 engines, the flexible hose 4380774 is specifically tailored to handle the unique demands of these high-performance engines. Its design allows for flexibility and resilience, accommodating the dynamic movements and vibrations inherent in these engines. This ensures that the hose maintains a secure connection, reducing the risk of leaks and enhancing overall system efficiency.

MCRS Engines

In the case of the MCRS engines, the flexible hose 4380774 is equally crucial. These engines often operate in demanding environments, and the hose’s flexibility and durability are essential for maintaining consistent performance. The part’s robust construction ensures it can withstand the rigors of continuous operation, providing a dependable connection that supports the engine’s functionality.

Grouping for Efficiency

When considering the QSK60 and CM850 engines together, it is evident that the flexible hose 4380774 is designed to meet the high standards of both. These engines share similar operational characteristics, making the hose an ideal fit for both. Similarly, the MCRS engines benefit from the hose’s flexibility and durability, ensuring that it can handle the specific challenges posed by these engines.

By ensuring compatibility across these engines, Cummins maintains a high level of quality and reliability, providing customers with a part that can be trusted to perform in various demanding conditions.

Role of Part 4380774 Flexible Hose in Plumbing and Turbocharger Coolant Systems

Plumbing Systems

In plumbing systems, the 4380774 Flexible Hose facilitates the transfer of fluids between various components. It is designed to accommodate the natural expansion and contraction of pipes due to temperature fluctuations, thereby reducing stress on the system. This flexibility ensures a more durable and reliable plumbing setup, minimizing the risk of leaks and system failures. The hose’s ability to bend and twist also simplifies the installation process, allowing for easier routing around obstacles and tight spaces.

Turbocharger Coolant Systems

Within turbocharger coolant systems, the 4380774 Flexible Hose plays a significant role in maintaining optimal turbocharger performance. It connects the turbocharger to the engine’s coolant system, allowing for the circulation of coolant that helps manage the high temperatures generated during operation. The flexibility of the hose is particularly beneficial in this application, as it can withstand the vibrations and movements associated with the turbocharger without compromising the integrity of the coolant flow. This ensures consistent cooling, which is essential for prolonging the life of the turbocharger and enhancing overall engine efficiency.

Conclusion

The Cummins 4380774 Flexible Hose is a critical component in the maintenance and efficiency of commercial trucks. Its design and features ensure reliable fluid transfer in demanding environments, contributing to the overall performance and longevity of the vehicles it serves. Regular maintenance and proper installation are key to maximizing the benefits of this Cummins part.