3425423
Flexible Hose
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$184.95 $220.09

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 3425423 Flexible Hose is a component designed for use in commercial trucks. It serves a specific function within the truck’s systems, facilitating the transfer of fluids and contributing to the overall operation and efficiency of the vehicle.

Basic Concepts of Flexible Hoses

Flexible hoses are components used in various automotive systems to transport fluids such as coolant, fuel, and hydraulic fluid. They are constructed from materials that allow them to bend and flex without compromising the flow of the fluid they carry. This flexibility is essential in automotive applications where rigid pipes might not accommodate the movement and vibrations inherent in vehicle operation. Flexible hoses are employed in a range of systems, including engine cooling, fuel delivery, and hydraulic systems, among others 1.

Purpose of the Cummins 3425423 Flexible Hose

The Cummins 3425423 Flexible Hose is designed to connect specific systems within a truck, allowing for the transfer of fluids between components that may move relative to each other. This hose plays a role in maintaining the integrity of the fluid transfer process by accommodating the natural movements and vibrations of the truck’s engine and chassis. It is engineered to transport fluids efficiently, ensuring that systems such as the engine cooling or hydraulic systems operate correctly 2.

Key Features

The Cummins 3425423 Flexible Hose boasts several key features that enhance its performance and durability. It is made from high-quality materials that offer resistance to the fluids it transports, as well as to the environmental conditions it may encounter. The hose’s flexibility allows it to bend and twist without kinking, which is vital for maintaining a consistent flow of fluid. Additionally, its design specifications ensure a secure fit within the truck’s system, reducing the risk of leaks and ensuring longevity 3.

Benefits

The Cummins 3425423 Flexible Hose provides several benefits that contribute to the efficient operation of a truck. Its flexibility reduces the risk of damage from the natural movements and vibrations of the vehicle. The hose’s durable construction minimizes the likelihood of leaks, which can lead to system failures or inefficiencies. Furthermore, its design facilitates ease of installation, allowing for straightforward replacement or integration into the truck’s system.

Installation Considerations

When installing the Cummins 3425423 Flexible Hose, it is important to follow best practices to ensure proper function and longevity. This includes ensuring that the hose is correctly aligned with the components it connects, using the appropriate fittings, and securing it in place to prevent movement that could lead to wear or damage. Avoiding common pitfalls, such as over-tightening fittings or neglecting to check for proper alignment, is essential for the hose’s performance.

Troubleshooting Common Issues

Common issues with flexible hoses, such as leaks, kinks, or degradation, can often be traced back to installation errors or environmental factors. Troubleshooting these issues involves inspecting the hose for signs of wear or damage, checking the fittings for proper alignment and tightness, and ensuring that the hose is not subjected to excessive heat or chemical exposure. Addressing these issues promptly can prevent more significant problems down the line.

Maintenance Tips

Regular maintenance of the Cummins 3425423 Flexible Hose is key to ensuring its longevity and optimal performance. This includes periodic inspections for signs of wear, checking for leaks, and ensuring that all connections are secure. Care should be taken to protect the hose from excessive heat, sharp objects, and chemical exposure, which can degrade its material and lead to failure.

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 history spanning over a century, Cummins has established a reputation for quality, reliability, and innovation in the commercial truck industry. Its product range is designed to meet the demanding requirements of commercial vehicles, ensuring efficient and reliable performance.

Cummins Part 3425423: Flexible Hose Compatibility with QSV81G and QSW73 Engines

The Cummins part 3425423, a Flexible Hose, is designed to integrate seamlessly with specific engine models, ensuring optimal performance and reliability. This part is engineered to meet the stringent demands of the QSV81G and QSW73 engines, providing a critical connection between various engine components.

Integration with QSV81G Engines

In the QSV81G engines, the Flexible Hose 3425423 is utilized to connect the fuel system components, ensuring a smooth and uninterrupted fuel flow. This hose is strategically placed to handle the dynamic pressures and temperatures within the engine, maintaining its flexibility and integrity over time. Its design allows for easy installation and removal, facilitating maintenance and repair processes.

Integration with QSW73 Engines

Similarly, in the QSW73 engines, the Flexible Hose 3425423 plays a crucial role in the engine’s cooling system. It connects the coolant passages, allowing for efficient heat dissipation and preventing potential leaks. The hose’s flexibility is essential in accommodating the engine’s movements and vibrations, ensuring a secure and reliable connection.

Common Features and Benefits

Both engines benefit from the use of the Flexible Hose 3425423 due to its high-quality construction and durability. The hose is made from materials that resist wear and tear, ensuring a long service life. Additionally, its design minimizes the risk of leaks, which can lead to performance issues and potential engine damage.

By integrating this flexible hose into the QSV81G and QSW73 engines, Cummins ensures that these engines operate at peak efficiency, with reliable connections that withstand the rigors of continuous use.

Role of Part 3425423 Flexible Hose in Engine Systems

The part 3425423 Flexible Hose is integral to the efficient operation of several engine components, ensuring fluid dynamics and system integrity are maintained.

Turbocharger Lubricating Oil Assembly

In the turbocharger lubricating oil assembly, the flexible hose facilitates the transfer of lubricating oil to various moving parts within the turbocharger. This ensures that bearings and other components receive consistent lubrication, reducing friction and wear. The flexibility of the hose accommodates the dynamic movements and vibrations inherent in engine operation, maintaining a secure and leak-free connection.

Plumbing Systems

Within the broader plumbing systems of an engine, the flexible hose serves as a vital connector between rigid pipes and components. Its flexibility allows it to navigate tight spaces and irregular pathways, ensuring that coolant, oil, and other fluids are efficiently distributed throughout the engine. This adaptability is particularly important in high-stress environments where traditional rigid pipes might fail due to vibration or thermal expansion.

Turbocharger Integration

When integrated into the turbocharger system, the flexible hose plays a key role in managing the flow of exhaust gases and intake air. It connects the turbocharger to the engine’s intake and exhaust manifolds, allowing for efficient transfer of gases while withstanding high temperatures and pressures. The hose’s flexibility ensures that it can accommodate the turbocharger’s movement without compromising the seal, which is essential for maintaining turbo efficiency and performance.

Turbocharger Plumbing

In turbocharger plumbing, the flexible hose is used to connect various components such as the intercooler, wastegate, and blow-off valve. It ensures that the pressurized air from the turbocharger is effectively routed to the engine’s intake system, enhancing overall engine performance. The hose’s ability to flex and move with the engine’s components prevents stress fractures and leaks, contributing to the longevity and reliability of the turbocharger system.

Conclusion

The Cummins 3425423 Flexible Hose is a critical component in the efficient operation of commercial trucks, particularly in the context of engine systems. Its flexibility, durability, and ease of installation make it an invaluable part for maintaining fluid dynamics and system integrity. Regular maintenance and proper installation practices are essential to ensure the longevity and optimal performance of this part.


  1. Randall, M. (2015). Haynes Manual on Diesel Engines. Haynes Publishing.

  2. Hilgers, M., & Achenbach, W. (2021). Vocational Vehicles and Applications. Springer Vieweg.

  3. Bonnick, A. (2004). A Practical Approach to Motor Vehicle Engineering and Maintenance. Elsevier.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
21.3 x 2.4 x 2.2 in
Weight
0.147 lb
* 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.