4964681
Flexible Hose
Cummins®

The 4964681 Flexible Hose, manufactured by Cummins, is a component designed for use in commercial trucks. This hose is integral to the functionality of heavy-duty trucks, facilitating the transfer of fluids between various systems. Flexible hoses are vital for accommodating the movement and vibrations inherent in truck operations, ensuring reliable performance and longevity of the vehicle’s systems.

Basic Concepts of Flexible Hoses

Flexible hoses are conduits that allow for the transfer of fluids, gases, or even electrical signals within a vehicle’s system. They are constructed from materials that offer flexibility, durability, and resistance to the elements they transport. Common materials include rubber, thermoplastic elastomers, and metal braids, each chosen for specific properties such as flexibility, temperature resistance, and pressure tolerance. These materials enable the hose to withstand the dynamic conditions within a vehicle, including vibrations, temperature fluctuations, and exposure to various chemicals ¹.

Purpose of the 4964681 Flexible Hose

The 4964681 Flexible Hose is designed to connect specific systems within a truck, facilitating the transport of fluids essential for the vehicle’s operation. It plays a role in ensuring that fluids can move between components without leakage, even as the truck undergoes the stresses of regular use. This hose is engineered to maintain a secure and efficient flow of fluids, contributing to the overall reliability and performance of the truck.

Key Features

The 4964681 Flexible Hose boasts several key features that enhance its performance and durability. Its design incorporates high-quality materials that provide resistance to wear and tear, as well as flexibility to accommodate the movements of the truck. The construction includes layers that offer protection against abrasion and environmental factors, ensuring longevity. Additionally, the hose may feature unique attributes such as reinforced ends for secure connections and smooth inner walls to facilitate fluid flow.

Benefits

Utilizing the 4964681 Flexible Hose in truck applications offers several advantages. Its improved flexibility allows it to withstand the dynamic movements of a truck without compromising the integrity of the fluid transfer. The hose’s resistance to wear and tear contributes to its durability, reducing the need for frequent replacements. Enhanced safety features, such as reinforced connections and leak-resistant designs, further contribute to the reliability and safety of the truck’s systems.

Installation Considerations

Proper installation of the 4964681 Flexible Hose is crucial for ensuring optimal performance and safety. It is important to follow guidelines for correct fitting and securing methods to prevent leaks and ensure the hose can withstand the operational stresses of the truck. Attention to detail during installation, such as ensuring clamps are properly tightened and connections are secure, will contribute to the hose’s effectiveness and longevity.

Troubleshooting Common Issues

Common problems associated with flexible hoses include wear, leaks, and malfunctions. Recognizing signs of these issues, such as fluid leaks, unusual noises, or a decrease in system performance, is important for maintaining the hose’s functionality. Troubleshooting steps may involve inspecting the hose for visible damage, ensuring connections are secure, and replacing the hose if necessary to prevent further issues.

Maintenance Tips

Regular maintenance of the 4964681 Flexible Hose is key to prolonging its lifespan and ensuring reliable operation. Inspection routines should include checking for signs of wear, leaks, or damage. Cleaning the hose and its connections can prevent buildup that may affect performance. Knowing when to consider replacement, based on the hose’s condition and the manufacturer’s recommendations, is also important for maintaining the truck’s systems.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and commitment to quality, Cummins serves customers in approximately 190 countries and territories through a network of more than 600 company-owned and independent distributor facilities and approximately 7,400 dealer locations. Cummins’ product range includes engines, related technology, and aftermarket parts, all designed to meet the demanding requirements of commercial and industrial applications.

Cummins Flexible Hose Part 4964681 Compatibility

The Cummins Flexible Hose part number 4964681 is designed to integrate seamlessly with a variety of Cummins engines, ensuring optimal performance and reliability. This part is engineered to fit the following engines:

QSK50 Engines

The QSK50 series engines benefit from the flexibility and durability of part 4964681. This hose is specifically designed to handle the unique demands of the QSK50, providing a reliable connection in high-stress environments.

CM2150 Engines

The CM2150 engines also utilize the 4964681 Flexible Hose. This part is crucial for maintaining the integrity of the fuel and coolant systems, ensuring that the engine operates smoothly and efficiently.

MCRS Engines

The MCRS engines are another application where the 4964681 Flexible Hose proves its worth. This hose is engineered to withstand the rigors of marine environments, providing a flexible and durable connection that enhances the overall performance of the engine.

By ensuring compatibility with these engines, the Cummins Flexible Hose part 4964681 helps maintain the efficiency and longevity of the engine systems, making it an essential component for these applications.

Role of Part 4964681 Flexible Hose in Engine Systems

Part 4964681, the Flexible Hose, is integral to the efficient operation of various engine systems. It facilitates the transfer of fluids between components, ensuring seamless functionality and performance.

Heat Exchanger Systems

In heat exchanger systems, the Flexible Hose plays a significant role by connecting the heat exchanger to other critical components. It allows for the smooth flow of coolant or other fluids, which is essential for maintaining optimal temperatures within the engine. The flexibility of the hose accommodates the vibrations and movements inherent in engine operation, preventing leaks and ensuring consistent fluid transfer.

Coolant Circulation

Within the coolant circulation system, the Flexible Hose is used to link the radiator, water pump, and engine block. This connection is vital for dissipating heat generated by the engine. The hose’s flexibility helps manage the dynamic environment of the engine bay, absorbing shocks and reducing stress on the connections, which enhances the longevity of the system.

Fuel Systems

In fuel systems, the Flexible Hose is employed to connect the fuel tank to the fuel pump and injectors. Its role here is to ensure a steady and uninterrupted supply of fuel, which is necessary for consistent engine performance. The hose’s design allows it to withstand the pressure fluctuations and temperature variations typical in fuel systems.

Emission Control Systems

For emission control systems, the Flexible Hose is used in the Exhaust Gas Recirculation (EGR) system and Evaporative Emission Control (EVAP) system. In the EGR system, it helps route exhaust gases back into the intake manifold to reduce nitrogen oxides. In the EVAP system, it manages the flow of fuel vapors from the fuel tank to the charcoal canister, preventing the release of harmful emissions into the atmosphere.

Lubrication Systems

In lubrication systems, the Flexible Hose connects the oil pump to the engine bearings and other lubricated components. It ensures that oil is distributed evenly throughout the engine, reducing friction and wear. The hose’s flexibility is particularly beneficial in this application, as it can adapt to the engine’s movements without compromising the oil flow.

Brake Systems

Within brake systems, the Flexible Hose is used to connect the brake fluid reservoir to the brake calipers and wheel cylinders. This connection is essential for maintaining hydraulic pressure, which is critical for effective braking. The hose’s flexibility ensures that it can endure the constant flexing and movement associated with braking actions.

Power Steering Systems

In power steering systems, the Flexible Hose links the power steering pump to the steering rack. It ensures that hydraulic fluid is delivered efficiently, providing the necessary assistance for smooth steering operation. The hose’s flexibility accommodates the steering system’s movements, enhancing both performance and durability.

The Flexible Hose, part 4964681, is a versatile component that enhances the functionality and reliability of various engine systems by ensuring fluid transfer is efficient, consistent, and adaptable to the dynamic conditions within the engine bay.

Conclusion

The 4964681 Flexible Hose by Cummins is a critical component in the operation of commercial trucks, facilitating the efficient transfer of fluids across various engine systems. Its design, featuring high-quality materials and key features such as reinforced ends and smooth inner walls, ensures durability and reliable performance. Proper installation, regular maintenance, and prompt troubleshooting of common issues are essential for maximizing the lifespan and effectiveness of this part. By integrating seamlessly with Cummins engines, the 4964681 Flexible Hose contributes to the overall efficiency and longevity of engine systems, underscoring its importance in heavy-duty truck applications.