4937702
Flexible Hose
Cummins®

The 4937702 Flexible Hose Assembly, manufactured by Cummins, is a component designed for use in commercial trucks. Cummins, a well-established name in the commercial truck industry, produces this hose assembly to meet the demanding requirements of heavy-duty applications. This part is integral to the fluid transport systems within trucks, ensuring efficient and reliable operation.

Basic Concepts of Flexible Hose Assemblies

Flexible hose assemblies are components used in automotive and industrial applications to transport fluids such as coolant, fuel, and hydraulic fluids. They are designed to provide a flexible connection between rigid components, accommodating movement and vibration that occur during operation. These assemblies typically consist of a flexible tube made from rubber or synthetic materials, reinforced with textile or metal braids to enhance durability and pressure resistance ¹.

Purpose of the 4937702 Flexible Hose Assembly

This Cummins part plays a specific role in the operation of a truck by connecting various systems and transporting essential fluids. It is commonly used in the cooling system, where it facilitates the movement of coolant between the engine and the radiator. This assembly ensures that the coolant can flow freely despite the vibrations and movements inherent in truck operation, thereby maintaining optimal engine temperature.

Key Features

The 4937702 Flexible Hose Assembly boasts several key features that enhance its performance and durability. It is constructed from high-quality materials, including a robust inner tube and a protective outer layer that resists wear and tear. The design incorporates reinforcement elements such as textile or metal braids, which provide additional strength and flexibility. These features ensure that the hose can withstand high pressure and temperature fluctuations, common in commercial truck applications ².

Benefits

The advantages of the 4937702 Flexible Hose Assembly include improved flexibility, which allows it to accommodate the dynamic movements of the truck’s engine and chassis. Its resistance to wear and tear ensures a longer service life, reducing the frequency of replacements. Additionally, the assembly contributes to the overall efficiency and reliability of the truck by maintaining a consistent flow of coolant, which is vital for engine performance and longevity.

Installation Considerations

When installing the 4937702 Flexible Hose Assembly, it is important to follow guidelines and best practices to ensure proper function and longevity. Preparatory steps include ensuring that the connection points are clean and free of debris. The use of appropriate tools, such as hose clamps and wrenches, is necessary to secure the assembly in place. Common pitfalls to avoid include over-tightening clamps, which can damage the hose, and improper alignment, which can lead to leaks.

Troubleshooting Common Issues

Common problems associated with flexible hose assemblies include leaks and degradation. To diagnose these issues, one should inspect the hose for signs of wear, such as cracks or bulges, and check the connections for proper seating. If a leak is detected, the hose may need to be replaced. Regular inspections can help identify potential issues before they lead to more significant problems.

Maintenance Tips

Regular maintenance of the 4937702 Flexible Hose Assembly is crucial for ensuring longevity and optimal performance. Inspection intervals should be established based on the truck’s usage and operating conditions. Signs of wear, such as discoloration, softening, or hardening of the hose material, indicate a need for replacement. Keeping the hose clean and free of contaminants will also contribute to its durability.

Cummins: A Brief Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of products and strong reputation for quality and reliability. Founded in 1919, Cummins has a long history of innovation and excellence in engine and power generation technologies. The company’s commitment to producing high-quality components, such as the 4937702 Flexible Hose Assembly, underscores its dedication to enhancing the performance and reliability of commercial trucks.

Cummins Flexible Hose Assembly Part 4937702

The Cummins Flexible Hose Assembly part 4937702 is a critical component designed to fit seamlessly with the ISB CM2150 and ISB6.7 CM2250 engines. This part is engineered to provide a reliable connection between various fluid systems within the engine, ensuring efficient operation and minimizing the risk of leaks or failures.

For the ISB CM2150 engine, the part 4937702 is specifically tailored to interface with the engine’s hydraulic and fuel systems. Its flexibility allows it to accommodate the natural movements and vibrations of the engine, maintaining a secure and stable connection throughout the engine’s operational life.

Similarly, in the ISB6.7 CM2250 engine, the part 4937702 is designed to integrate with the same fluid systems. Given the slightly larger displacement of the ISB6.7 CM2250, the hose assembly is engineered to handle the increased fluid flow and pressure, ensuring that the engine operates at peak efficiency.

Both engines benefit from the use of this flexible hose assembly, as it provides a durable and long-lasting solution that can withstand the harsh conditions of engine operation. The part’s design ensures that it can endure the thermal and mechanical stresses associated with engine use, providing a reliable connection that enhances the overall performance and longevity of the engine.

Role of Part 4937702 Flexible Hose Assembly in Turbocharger Plumbing

The part 4937702 Flexible Hose Assembly is integral to the turbocharger plumbing system, facilitating the transfer of exhaust gases and pressurized air within the engine. This component is designed to connect various parts of the turbocharger system, ensuring efficient and reliable operation.

In the context of turbocharger plumbing, the Flexible Hose Assembly interfaces with the following components:

• Exhaust Manifold: The hose assembly connects to the exhaust manifold, allowing the flow of exhaust gases from the engine cylinders to the turbocharger. This connection is vital for the turbocharger to generate boost pressure.

• Turbocharger Turbine Housing: On the exhaust side, the hose assembly links the exhaust manifold to the turbine housing of the turbocharger. This enables the high-velocity exhaust gases to spin the turbine, which in turn drives the compressor.

• Intercooler: Post-compression, the high-pressure air from the turbocharger compressor is often routed through an intercooler to reduce its temperature. The Flexible Hose Assembly ensures a secure and flexible connection between the compressor outlet and the inlet of the intercooler.

• Intake Manifold: After passing through the intercooler, the cooled, pressurized air is directed towards the intake manifold. The hose assembly provides a flexible connection between the intercooler outlet and the intake manifold, accommodating the dynamic movements and vibrations of the engine.

• Boost Control Solenoid: In systems equipped with a boost control solenoid, the hose assembly may also connect to this component. This allows for the regulation of boost pressure by venting excess pressure back to the intake tract or atmosphere.

• Wastegate Actuator: The Flexible Hose Assembly may also be used to connect the wastegate actuator to the turbocharger. This connection helps in managing the flow of exhaust gases bypassing the turbine, thus controlling the turbocharger’s speed and the amount of boost produced.

By providing these essential connections, the part 4937702 Flexible Hose Assembly ensures the turbocharger system operates smoothly, enhancing engine performance and reliability.

Conclusion

The 4937702 Flexible Hose Assembly by Cummins is a vital component in the fluid transport systems of commercial trucks. Its design and features ensure efficient and reliable operation, accommodating the dynamic movements and vibrations inherent in heavy-duty applications. Regular maintenance and proper installation are key to maximizing the longevity and performance of this part, contributing to the overall efficiency and reliability of the truck.