3689369
Flexible Hose
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$649.95 $773.44

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 3689369 Flexible Hose is a component designed for use in commercial trucks. It serves as a vital link in various systems within these vehicles, facilitating the transfer of fluids and contributing to the overall functionality and reliability of the truck.

Basic Concepts of Flexible Hoses

Flexible hoses are tubular components used in automotive and industrial applications to convey fluids such as coolant, fuel, oil, and air 1. They are constructed from materials that allow them to bend and flex without compromising the flow of the fluid they carry. Within a system, flexible hoses provide a necessary degree of movement and vibration absorption that rigid pipes cannot offer, which helps in reducing stress on connected components and enhancing the system’s durability 2.

Purpose of the Cummins 3689369 Flexible Hose

The Cummins 3689369 Flexible Hose is specifically engineered to connect various systems in a truck, transporting essential fluids. It plays a role in the truck’s operation by linking components that require fluid transfer, such as the engine to the radiator for coolant circulation or within the fuel system for delivering fuel to the engine. The hose is designed to withstand the pressures and temperatures associated with these fluids, ensuring efficient and reliable performance 3.

Key Features

The primary characteristics of the Cummins 3689369 Flexible Hose include its material composition, which typically consists of synthetic rubber or a similar elastomer for flexibility and resistance to environmental factors. Its design incorporates reinforcement layers to enhance durability and prevent kinking. The hose’s flexibility allows it to navigate tight spaces and absorb vibrations, which contributes to a longer service life and reduced maintenance needs 4.

Benefits of Using the 3689369 Flexible Hose

Utilizing the Cummins 3689369 Flexible Hose offers several advantages. Its design reduces the risk of leaks by providing a secure and flexible connection between components. The hose’s durability under stress ensures it can withstand the dynamic conditions within a truck’s engine compartment. Additionally, its enhanced flexibility allows for a better fit in constrained areas, which can be particularly beneficial in the compact engine bays of commercial trucks.

Installation Considerations

When installing the Cummins 3689369 Flexible Hose, it is important to follow best practices to ensure a secure and leak-free connection. This includes properly aligning the hose with the fittings, using the correct clamps and tools, and verifying that there is no tension on the hose that could lead to premature wear or failure. Careful attention to these details during installation will contribute to the hose’s performance and longevity.

Troubleshooting Common Issues

Flexible hoses, including the Cummins 3689369, may encounter issues such as leaks or wear over time. Common problems can often be traced to improper installation, exposure to extreme conditions, or natural degradation of the hose material. Diagnosing these issues involves inspecting the hose for signs of damage, checking connections for tightness, and ensuring that the hose is not subjected to undue stress. Resolving these issues may require repairing or replacing the hose, depending on the extent of the damage.

Maintenance Tips

To prolong the life of the Cummins 3689369 Flexible Hose, regular maintenance is recommended. This includes periodic inspection for signs of wear, cracking, or leaks. Cleaning the hose and its connections to remove any buildup that could impede fluid flow is also beneficial. Additionally, ensuring that all clamps and fittings are secure and in good condition will help maintain the integrity of the hose and the systems it serves.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range serves various markets, providing reliable and efficient power solutions for a multitude of applications.

Role of Part 3689369 Flexible Hose in Various Engine Systems

Plumbing Systems

In plumbing systems, the 3689369 Flexible Hose is utilized to connect various components that require fluid transfer. This includes connections between pumps, filters, and heat exchangers. The hose’s flexibility allows it to navigate tight spaces and absorb vibrations, ensuring a secure and durable connection. It plays a significant role in maintaining the integrity of the fluid pathway, preventing leaks, and ensuring efficient fluid dynamics within the system.

Turbocharger Systems

Within turbocharger systems, the 3689369 Flexible Hose is employed to connect the turbocharger to the intake and exhaust manifolds. This connection is vital for the efficient transfer of exhaust gases, which drive the turbine and subsequently the compressor. The hose’s flexibility accommodates the movement and thermal expansion of the components, ensuring a reliable seal. It helps in managing the high-pressure and high-temperature environment typical of turbocharger operations, contributing to the overall performance and durability of the system.

Conclusion

The Cummins 3689369 Flexible Hose is a critical component in the operation of commercial trucks, providing a flexible and durable solution for fluid transfer in various engine systems. Its design and construction ensure efficient performance under demanding conditions, contributing to the reliability and longevity of the truck’s systems.


  1. Diesel Engines, A. J. Wharton, Butterworth-Heinemann Ltd, 1991

  2. Gas Turbine Engineering Handbook, Second Edition, Meherwan P. Boyce, Gulf Professional Publishing, 2002

  3. Engine Oils and Automotive Lubrication Mechanical Engineering Book 80, Wilfried J Bartz, CRC Press, 2019

  4. Introduction to Internal Combustion Engines, Fourth Edition, Richard Stone, Macmillan, 2012

SPECIFICATIONS

Package Dimensions
18.0 x 1.125 x 1.375 in
Weight
0.55 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.