3682979
Flexible Hose
Cummins®

Introduction

The Cummins 3682979 Flexible Hose is a component designed for use in commercial truck systems. It serves a specific purpose within the truck’s fluid transfer systems, facilitating the movement of fluids or gases between different parts of the vehicle. This hose is engineered to provide reliable performance under the demanding conditions typically encountered in commercial trucking operations ¹.

Basic Concepts of Flexible Hoses

Flexible hoses are used in various automotive and industrial applications to transfer fluids or gases. They are constructed from materials that allow them to bend and flex without compromising the integrity of the fluid or gas pathway. These hoses are preferred over rigid pipes in applications where movement or vibration is expected, as they can accommodate such motions without developing leaks or breaking ².

Purpose of the Cummins 3682979 Flexible Hose

The Cummins 3682979 Flexible Hose is utilized in truck systems to connect components that may move relative to each other. It plays a role in transferring fluids or gases, ensuring a continuous and secure flow between parts of the system that are not fixed in place. This hose is integral to maintaining the efficiency and reliability of the truck’s systems by providing a flexible connection point ³.

Key Features

The Cummins 3682979 Flexible Hose is characterized by several key features that enhance its performance and durability. It is made from high-quality materials that offer resistance to the fluids or gases it carries, as well as to external environmental factors. The hose’s flexibility allows it to bend and twist without kinking, ensuring a smooth flow. Its design specifications are tailored to meet the specific demands of commercial truck applications, including resistance to abrasion, high and low temperatures, and chemical exposure.

Benefits

Using the Cummins 3682979 Flexible Hose offers several advantages. It contributes to improved system performance by ensuring a reliable fluid or gas transfer. The hose’s flexibility reduces the risk of leaks that might occur with rigid connections, especially in applications where movement is a factor. Additionally, its durable construction enhances the overall longevity of the truck’s systems, providing a cost-effective solution for fluid transfer needs.

Installation Considerations

When installing the Cummins 3682979 Flexible Hose, it is important to follow guidelines to ensure proper fitting and securement. This includes using the correct fittings to connect the hose to the system components, ensuring that the hose is not twisted or kinked during installation. Proper alignment within the truck’s system is crucial to maintain the efficiency of fluid or gas transfer and to prevent unnecessary stress on the hose.

Troubleshooting Common Issues

Common problems with flexible hoses include leaks, kinks, or degradation over time. To address these issues, it is important to regularly inspect the hose for signs of wear or damage. If a leak is detected, the source should be identified and repaired or replaced as necessary. Kinks can often be resolved by repositioning the hose, ensuring it is not under undue stress. Degradation may require replacement of the hose to maintain system integrity.

Maintenance Tips

Maintaining the Cummins 3682979 Flexible Hose involves regular inspection to check for signs of wear, leaks, or damage. Cleaning the exterior of the hose can help remove contaminants that might accelerate degradation. It is also important to monitor the hose for any changes in performance, such as reduced flow efficiency, which may indicate the need for replacement.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions technologies. With a history of innovation and a commitment to quality, Cummins has established a strong reputation in the commercial truck industry for producing reliable and efficient components that meet the demanding needs of modern transportation.

Flexible Hose Part 3682979 in Cummins Engines

The Cummins Flexible Hose part number 3682979 is a critical component in the ISX CM570, ISX CM870, and ISX CM871 engines. This part is designed to provide flexibility and durability in the engine’s cooling system, ensuring efficient heat transfer and maintaining optimal engine performance.

ISX CM570 and ISX CM870

In both the ISX CM570 and ISX CM870 engines, the Flexible Hose part 3682979 connects the engine’s coolant passages to the radiator. This connection is vital for the cooling system’s functionality, as it allows for the circulation of coolant, which helps in dissipating heat generated by the engine. The flexibility of the hose accommodates the engine’s movements and vibrations, reducing the risk of leaks and ensuring a secure fit.

ISX CM871

The ISX CM871 engine also utilizes the Flexible Hose part 3682979, but its application extends to additional components within the engine’s cooling system. In this engine, the hose is used to connect the coolant passages to not only the radiator but also to other critical components such as the heater core and the charge air cooler. This multi-functional use highlights the importance of the hose in maintaining the overall efficiency and reliability of the engine’s cooling system.

Grouping of Engines

The ISX CM570 and ISX CM870 engines share a similar design in terms of the Flexible Hose part 3682979’s application, primarily focusing on the connection to the radiator. The ISX CM871, while also using the same part number, incorporates the hose into a more complex network of connections, reflecting the engine’s advanced design and the need for more comprehensive cooling solutions.

Part 3682979 Flexible Hose Component Usage

The part 3682979 Flexible Hose is integral to the efficient operation of various engine systems, particularly in applications involving compressors and air systems.

In compressor systems, the flexible hose facilitates the transfer of compressed air from the compressor to various points of use within the engine system. This ensures a reliable and uninterrupted supply of compressed air, which is essential for powering pneumatic tools, actuating valves, and supporting other pneumatic functions. The flexibility of the hose allows it to accommodate the dynamic movements and vibrations inherent in compressor operations, thereby maintaining consistent performance and reducing the risk of leaks or failures.

Within air systems, the flexible hose plays a significant role in managing the flow of air to and from different components. It connects air filters to intake manifolds, ensuring that clean air reaches the engine cylinders. Additionally, it routes air from the turbocharger to the intercooler, optimizing the cooling process before the air enters the combustion chamber. This enhances engine efficiency and performance by ensuring that the air-fuel mixture is properly conditioned.

Furthermore, the flexible hose is utilized in breather systems, where it allows for the release of pressure build-up within the crankcase, preventing damage to engine seals and components. It also connects various sensors and actuators within the air management system, providing the necessary pathways for data and air flow without compromising the integrity of the system.

Overall, the part 3682979 Flexible Hose is a versatile component that supports the seamless integration and operation of compressor and air systems within engine environments.

Conclusion

The Cummins 3682979 Flexible Hose is a vital component in commercial truck systems, offering flexibility, durability, and efficient fluid or gas transfer. Its application in various engine systems, including compressors and air systems, underscores its importance in maintaining engine performance and reliability. Proper installation, maintenance, and troubleshooting are essential to ensure the longevity and effectiveness of this component.