4937526
Flexible Hose
Cummins®

The Cummins 4937526 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 necessary for the operation and maintenance of truck systems. Its application is widespread across different truck models, providing a flexible solution to the rigid constraints of traditional hoses ¹.

Basic Concepts of Flexible Hoses

Flexible hoses are utilized in automotive applications to connect different parts of a system that may move or vibrate relative to each other. They are designed to accommodate movement and reduce stress on connected components, which can help prevent leaks and system failures. Within a system, flexible hoses allow for the transfer of fluids such as coolant, fuel, or hydraulic fluid, ensuring that these substances reach their intended destinations efficiently and without interruption ².

Purpose of the 4937526 Flexible Hose

This Cummins part is specifically engineered to play a role in the fluid transfer systems of trucks. It connects various components, allowing for the movement of fluids that are essential for the operation of the truck. This hose is part of a system that requires flexibility to accommodate the dynamic environment of a commercial truck, where vibrations and movements are common.

Key Features

This part is constructed with a material composition that includes synthetic rubber and reinforcement materials to provide durability and flexibility. Its design incorporates features such as a smooth bore for efficient fluid flow and reinforced ends for secure attachment to fittings. These characteristics contribute to the hose’s performance and longevity in demanding truck applications.

Benefits

The advantages of the 4937526 Flexible Hose include its ability to flex and bend without kinking, which is beneficial in the confined and often moving spaces within a truck’s engine compartment. Its resistance to wear and tear, along with its ability to withstand high and low temperatures, contributes to the overall efficiency and reliability of the truck’s systems. The hose’s design also helps to reduce the risk of leaks, which can be a common issue with rigid hoses in a vibrating environment.

Installation Considerations

When installing the 4937526 Flexible Hose, it is important to follow manufacturer guidelines to ensure proper fit and function. This includes checking for the correct length and diameter to match the system requirements and ensuring that all connections are secure and free from twists or kinks. Proper installation is key to the hose’s performance and longevity.

Troubleshooting and Maintenance

Regular inspection of the 4937526 Flexible Hose can help identify common issues such as cracks, bulges, or leaks. Maintenance practices include checking for proper clamping and ensuring that the hose is not subjected to excessive heat or abrasion. If signs of wear are detected, it may be necessary to consider replacement to prevent system failure.

Cummins Overview

Cummins Inc. is a corporation known for its diesel engines, related technologies, and power generation equipment. With a history of innovation and a broad product range, Cummins has established a reputation for quality and reliability in the commercial truck industry. The company’s commitment to excellence is reflected in its parts, including the 4937526 Flexible Hose, which is designed to meet the rigorous demands of commercial truck applications.

Cummins Engine Compatibility with Flexible Hose Part 4937526

The Cummins Flexible Hose part number 4937526 is designed to fit seamlessly with several models within the Cummins engine lineup. This part is engineered to provide a reliable and flexible connection in various engine configurations, ensuring optimal performance and durability.

ISB CM2150 and ISB6.7 CM2250

The Flexible Hose part 4937526 is compatible with both the ISB CM2150 and the ISB6.7 CM2250 engines. These engines are known for their robust performance and efficiency, and the hose ensures that the fluid transfer between components remains smooth and uninterrupted. The design of the hose accommodates the specific layout and requirements of these engines, providing a critical link in the fluid management system.

ISB6.7 CM2350 B101

Similarly, the ISB6.7 CM2350 B101 engine is also designed to work with the Flexible Hose part 4937526. This engine variant benefits from the hose’s flexibility and durability, which helps maintain the integrity of the engine’s fluid systems. The hose’s compatibility with the B101 model ensures that it can handle the specific demands of this engine configuration, contributing to overall system reliability.

Role of Part 4937526 Flexible Hose in Turbocharger Plumbing

In turbocharger plumbing systems, the 4937526 Flexible Hose is instrumental in ensuring efficient and reliable operation. This component is designed to connect various elements within the turbocharger system, allowing for the transfer of gases and fluids under varying pressures and temperatures.

Air Intake System

Within the air intake system, the 4937526 Flexible Hose facilitates the connection between the turbocharger and the intercooler. This hose allows for the smooth passage of compressed air from the turbocharger to the intercooler, where it is cooled before entering the engine’s combustion chambers. The flexibility of the hose accommodates the vibrations and movements inherent in the engine compartment, maintaining a secure and leak-free connection.

Exhaust Gas Recirculation (EGR) System

In the EGR system, the 4937526 Flexible Hose plays a significant role by connecting the turbocharger to the EGR valve. This connection enables the recirculation of a portion of the exhaust gases back into the intake tract, which helps in reducing nitrogen oxides (NOx) emissions. The hose’s flexibility ensures that it can withstand the high temperatures and pressures associated with exhaust gases while providing a durable and reliable seal.

Charge Air Cooler (CAC) System

The 4937526 Flexible Hose is also utilized in the charge air cooler (CAC) system to connect the turbocharger outlet to the CAC. This connection allows for the efficient transfer of hot compressed air from the turbocharger to the CAC, where it is cooled before entering the engine. The hose’s design ensures that it can handle the thermal expansion and contraction cycles without compromising the integrity of the connection.

Turbocharger Bypass System

In turbocharger bypass systems, the 4937526 Flexible Hose is employed to connect the turbocharger to the bypass valve. This setup allows for the release of excess boost pressure when necessary, preventing over-pressurization of the intake tract. The hose’s flexibility ensures that it can accommodate the dynamic changes in pressure and temperature, maintaining a consistent and reliable connection.

Oil Feed and Return Lines

For turbochargers that require an external oil feed, the 4937526 Flexible Hose is used to connect the oil supply and return lines. This ensures that the turbocharger receives the necessary lubrication for its bearings and seals. The hose’s flexibility and durability are essential in withstanding the high-pressure oil flow and the potential for oil leaks.

Conclusion

The 4937526 Flexible Hose is a versatile and essential component in turbocharger plumbing, providing reliable connections across various systems and ensuring the efficient and safe operation of the turbocharger. Its compatibility with multiple Cummins engine models and its role in critical systems such as the air intake, EGR, CAC, and turbocharger bypass systems demonstrate its importance in maintaining the performance and reliability of commercial trucks.