3649891
Flexible Hose
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$639.95 $761.54

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 3649891 Flexible Hose is a component designed for use in commercial trucks. It serves as a conduit for various fluids within the truck’s systems, facilitating the transfer of substances such as coolant, fuel, or hydraulic fluid. Its application is integral to maintaining the operational efficiency and reliability of truck systems.

Basic Concepts of Flexible Hoses

Flexible hoses are tubes made from materials that allow them to bend and flex without compromising their structural integrity or the flow of the substances they carry. In automotive applications, these hoses are used to connect different parts of a system that may not be fixed in place relative to each other. They accommodate movement and vibration, which are common in vehicle operations, thereby reducing the risk of damage or disconnection 1.

Purpose of the Cummins 3649891 Flexible Hose

The Cummins 3649891 Flexible Hose is specifically designed to connect various components within a truck’s system, allowing for the transport of fluids between them. It plays a role in systems where flexibility is required to accommodate the movement of parts, such as between the engine and radiator for coolant transfer, or within the fuel system for delivering fuel to the engine 2.

Key Features

The Cummins 3649891 Flexible Hose is characterized by several features that enhance its performance and longevity. It is constructed from materials that provide flexibility and resistance to the fluids it transports. Its design includes specifications that ensure a secure fit and reliable operation under the conditions typically encountered in commercial truck applications 3.

Benefits of Using the Cummins 3649891 Flexible Hose

Incorporating the Cummins 3649891 Flexible Hose into truck systems offers several advantages. Its flexibility allows it to withstand the movement and vibration inherent in truck operations, reducing the likelihood of damage or disconnection. Compared to rigid hoses, it presents a lower risk of leaks and is less prone to wear and tear, contributing to the overall durability and reliability of the truck’s systems 4.

Installation Considerations

When installing the Cummins 3649891 Flexible Hose, it is important to follow guidelines and best practices to ensure proper fitting and securement. This includes verifying compatibility with the existing truck systems, using appropriate fittings, and employing methods to secure the hose in place. Attention to these details helps maintain the integrity of the system and the performance of the hose 5.

Maintenance and Troubleshooting

To ensure the optimal performance of the Cummins 3649891 Flexible Hose, regular maintenance is recommended. This includes inspecting the hose for signs of wear, checking for leaks, and ensuring all connections are secure. Identifying common issues early can prevent more significant problems, and troubleshooting steps should be followed to resolve any issues that arise 6.

Cummins Overview

Cummins Inc. is a corporation known for its diesel engines, related technologies, and services. With a history of innovation and a broad product range, Cummins has established a reputation for quality and reliability in the commercial truck industry. This background underscores the trust in the Cummins 3649891 Flexible Hose as a component that meets the high standards expected in truck applications 7.

Role of Part 3649891 Flexible Hose in Engine Systems

The Cummins part 3649891, a Flexible Hose, is designed to integrate seamlessly with a range of Cummins engines, ensuring efficient and reliable performance. This part is particularly suited for use in the QSK50, CM2350, and K108 engine families.

In the QSK50 series, the Flexible Hose is engineered to connect various fluid systems, providing flexibility and durability under high-pressure conditions. Its design allows for smooth operation and minimizes the risk of leaks, which is crucial for maintaining the engine’s performance.

For the CM2350 engines, the Flexible Hose is integral to the cooling system, facilitating the transfer of coolant between the engine and radiator. Its flexibility ensures that it can accommodate the engine’s movements and vibrations, preventing damage to the hose and maintaining the cooling system’s integrity.

The K108 engines also benefit from the Flexible Hose, particularly in applications where the engine is subject to frequent movement or harsh operating conditions. The hose’s design allows it to withstand the stresses of these environments, ensuring a reliable connection that supports the engine’s overall functionality.

Overall, the Cummins part 3649891 is a critical component for these engines, providing the necessary flexibility and durability to ensure optimal performance and longevity 8.

Conclusion

The Cummins 3649891 Flexible Hose is a vital component in commercial truck systems, offering flexibility, durability, and reliability in fluid transfer applications. Its design and features are tailored to meet the demanding conditions of truck operations, ensuring efficient and secure connections between various system components. Regular maintenance and proper installation are key to maximizing the performance and lifespan of this Cummins part.


  1. Automotive Emissions Regulations and Exhaust Aftertreatment Systems, John Kasab and Andrea Strzelec, SAE International, 2020.

  2. Fundamentals of Automotive and Engine Technology: Standard Drives, Hybrid Drives, Brakes, Safety Systems, Konrad Reif Ed, Springer Vieweg, 2014.

  3. Department of Energy Fundamentals Handbook, Department of Energy, 2015.

  4. QSK50 CM2150 K107, Service Manual (4332773).

  5. Automotive Emissions Regulations and Exhaust Aftertreatment Systems, John Kasab and Andrea Strzelec, SAE International, 2020.

  6. Fundamentals of Automotive and Engine Technology: Standard Drives, Hybrid Drives, Brakes, Safety Systems, Konrad Reif Ed, Springer Vieweg, 2014.

  7. Department of Energy Fundamentals Handbook, Department of Energy, 2015.

  8. QSK50 CM2150 K107, Service Manual (4332773).

SPECIFICATIONS

Package Dimensions
170.0 x 20.0 x 2.5 in
Weight
0.568 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.