3426646
Flexible Hose
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$819.95 $975.74

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 3426646 Flexible Hose is a component designed for use in commercial trucks. It serves a specific function within the vehicle’s systems, contributing to the overall operation and efficiency of the truck. Understanding its role and significance can provide insights into the complexities of truck maintenance and operation.

Basic Concepts of Flexible Hoses

Flexible hoses are components used in various automotive systems to transfer fluids or gases. They are designed to accommodate movement and vibration, which are common in vehicle operations. These hoses are crucial in systems where rigid pipes cannot be used due to the need for flexibility and the ability to withstand varying conditions without compromising the integrity of the fluid or gas transfer 1.

Purpose of the 3426646 Flexible Hose in Truck Operation

The 3426646 Flexible Hose is utilized in truck operations to connect specific systems and facilitate the transfer of fluids or gases. It is engineered to handle the dynamic environment of a commercial truck, ensuring reliable performance under various operational conditions. This hose plays a role in maintaining the efficiency and functionality of the connected systems by providing a flexible yet durable conduit for fluid or gas transfer 2.

Key Features

The 3426646 Flexible Hose boasts several key features that enhance its performance and longevity. These include a material composition designed for durability, flexibility to accommodate movement and vibration, and a robust design that ensures reliable operation in demanding conditions. These characteristics contribute to the hose’s ability to perform effectively in the challenging environment of a commercial truck 3.

Benefits of Using the 3426646 Flexible Hose

Incorporating the 3426646 Flexible Hose into a truck’s system offers several advantages. These include improved system reliability due to its durable construction, reduced risk of leaks thanks to its flexible yet secure design, enhanced flexibility in routing to accommodate the complex layouts of truck systems, and potential cost savings over time due to its longevity and reduced maintenance needs.

Installation Considerations

When installing the 3426646 Flexible Hose, it is important to follow guidelines and best practices to ensure proper integration into the truck’s system. This includes using proper fitting techniques to secure the hose in place, employing methods to ensure it remains firmly attached under operational conditions, and verifying compatibility with existing systems to prevent issues such as leaks or improper function.

Troubleshooting Common Issues

Common problems associated with flexible hoses, such as leaks, kinks, or degradation, can arise over time. Addressing these issues effectively involves identifying the root cause, whether it be improper installation, wear and tear, or environmental factors. Suggested troubleshooting steps may include inspecting the hose for signs of damage, ensuring proper fitting and securing methods are in place, and replacing the hose if necessary to maintain system integrity.

Maintenance Tips

Regular maintenance practices can help prolong the lifespan of the 3426646 Flexible Hose. This includes conducting inspection intervals to check for signs of wear or damage, following cleaning procedures to remove any buildup that could affect performance, and adhering to replacement guidelines to ensure the hose remains in optimal condition for safe and efficient operation.

Cummins Overview

Cummins Inc. is a well-established company in the commercial truck industry, known for its wide range of products and strong reputation for quality and reliability. With a history of innovation and commitment to excellence, Cummins continues to be a leader in providing solutions for the transportation sector, including components like the 3426646 Flexible Hose that contribute to the efficiency and durability of commercial trucks.

Cummins Flexible Hose 3426646 Compatibility

The Cummins Flexible Hose, part number 3426646, is designed to fit seamlessly within the engine systems of the QSW27 and QSW36 engines. This part is engineered to provide a reliable connection between various fluid lines and components, ensuring efficient operation and minimizing the risk of leaks or failures.

For the QSW27 and QSW36 engines, the flexible hose is crucial in maintaining the integrity of the engine’s fluid systems. It is specifically crafted to handle the dynamic movements and stresses inherent in these engines, ensuring that connections remain secure even under varying operational conditions.

In both the QSW27 and QSW36 engines, the flexible hose is utilized in areas where rigid connections would be impractical or impossible. Its design allows for flexibility, which is essential for accommodating the natural movement of engine components during operation. This flexibility helps to prevent wear and tear on the hose and the connected parts, extending the overall lifespan of the engine’s fluid systems.

The hose’s material and construction are tailored to withstand the high temperatures and pressures typical of these engines. This ensures that the hose can perform reliably over extended periods, contributing to the overall efficiency and longevity of the engine.

Role of Part 3426646 Flexible Hose in Engine Systems

Part 3426646, the Flexible Hose, is integral to the efficient operation of various engine systems. Its primary function is to facilitate the transfer of fluids within the engine, ensuring that components receive the necessary fuel and lubrication for optimal performance.

Fuel System Integration

In the fuel system, the Flexible Hose connects the fuel tank to the fuel pump and subsequently to the engine’s fuel injectors. This hose allows for the smooth and uninterrupted flow of fuel, accommodating the dynamic movements and vibrations inherent in engine operation. Its flexibility prevents stress and potential leaks that rigid pipes might experience under similar conditions.

Plumbing and Fuel Assembly

Within the fuel assembly plumbing, the Flexible Hose plays a significant role. It links various components such as the fuel filter, fuel pressure regulator, and fuel return lines. This ensures that the fuel system maintains consistent pressure and flow rates, which are essential for the engine’s combustion process. The hose’s design allows it to withstand the high pressures and temperatures typical in fuel systems, providing reliable performance.

General Plumbing Applications

Beyond the fuel system, the Flexible Hose is used in general plumbing applications within the engine bay. It connects coolant systems, brake fluid lines, and other hydraulic systems. Its flexibility is particularly beneficial in these applications, as it can navigate tight spaces and move with the engine’s components without compromising the integrity of the fluid pathways.

Assembly and Maintenance

During engine assembly and maintenance, the Flexible Hose simplifies the process of connecting and disconnecting components. Its design allows for easier installation and removal, reducing the time and effort required for repairs and upgrades. This feature is particularly valuable in high-maintenance environments where efficiency is paramount.

Conclusion

In summary, the Cummins Flexible Hose 3426646 is a versatile and essential component in engine systems, facilitating the transfer of fluids across various assemblies and ensuring the engine operates smoothly and efficiently. Its compatibility with the QSW27 and QSW36 engines underscores its importance in maintaining the integrity and efficiency of these engines’ fluid systems.


  1. Gijs Mom, The Evolution of Automotive Engineering: A Handbook, SAE International, 2023.

  2. Nicholas Goodnight and Kirk Van Gelder, Automotive Braking Systems, Jones & Bartlett Learning, 2018.

  3. Giancarlo Genta and Lorenzo Morello, The Automotive Chassis Volume 1 Components Design Mechanical Engineering Series 2nd Edition, Springer, 2019.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
68.0 x 28.5 x 4.3 in
Weight
2.649 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.