3935821
Flexible Hose
Cummins®

The Cummins 3935821 Flexible Hose is a component designed for use in commercial trucks. Manufactured by Cummins, a well-established name in the automotive and heavy-duty truck industry, this hose serves a specific function within the truck’s systems. Understanding its purpose, features, and proper usage is key to maintaining the efficiency and reliability of commercial vehicles ¹.

Basic Concepts of Flexible Hoses

Flexible hoses are utilized 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 for connecting different parts of a system while allowing for flexibility and reducing the risk of damage from constant motion ².

Purpose of the Cummins 3935821 Flexible Hose

The Cummins 3935821 Flexible Hose is integral to the operation of commercial trucks. It connects specific systems within the truck, facilitating the transfer of fluids or gases. This hose is engineered to withstand the dynamic conditions present in truck operations, ensuring reliable performance and connectivity between critical components.

Key Features

The 3935821 Flexible Hose boasts several key characteristics that enhance its functionality. It is composed of materials that offer flexibility and durability, allowing it to perform well under varying conditions. The design of the hose includes elements that improve its longevity and resistance to wear, making it a robust choice for commercial truck applications.

Benefits of Using the 3935821 Flexible Hose

Utilizing the Cummins 3935821 Flexible Hose offers several advantages. It provides improved system flexibility, which is vital for accommodating the movements and vibrations inherent in truck operations. The hose’s design reduces the risk of leaks, enhances durability in harsh conditions, and simplifies the installation process, contributing to overall system reliability.

Installation Considerations

When installing the 3935821 Flexible Hose, it is important to follow guidelines and best practices to ensure a proper fit and optimal performance. This includes using the necessary tools, adhering to step-by-step installation procedures, and being aware of common pitfalls that could affect the hose’s functionality.

Maintenance and Troubleshooting

Regular maintenance of the 3935821 Flexible Hose is crucial for ensuring its optimal performance. This involves periodic inspections to check for signs of wear or damage. Troubleshooting common issues can often be addressed through proper maintenance practices, helping to extend the hose’s lifespan and maintain system efficiency.

Safety Considerations

Working with the Cummins 3935821 Flexible Hose requires adherence to safety guidelines. This includes handling the hose with care, using appropriate personal protective equipment, and having emergency procedures in place for situations such as a leak or failure. Safety is paramount when dealing with automotive components to protect both the equipment and the individuals involved.

Environmental Impact

The use and disposal of the Cummins 3935821 Flexible Hose should be considered in the context of environmental impact. Proper disposal methods and recycling options, where available, should be followed to minimize the environmental footprint of this component.

About Cummins

Cummins is a renowned manufacturer in the commercial truck industry, known for its commitment to quality and innovation. With a rich history of producing reliable and high-performance components, Cummins plays a significant role in enhancing the efficiency and durability of commercial vehicles. Their products, including the 3935821 Flexible Hose, are designed with the aim of meeting the demanding requirements of the automotive sector ³.

Cummins Flexible Hose Part 3935821 Compatibility

The Cummins Flexible Hose part number 3935821 is designed to fit a variety of Cummins engines, ensuring a secure and flexible connection for various fluid transfer applications. Below is a detailed breakdown of the engines with which this part is compatible:

ISB and ISBE Series

• ISB CM550
• ISB/ISD4.5 CM2150 B119
• ISB4.5 CM2350 B104
• ISBE CM800
• ISBE4 CM850

These engines benefit from the flexible hose’s ability to accommodate movement and vibrations, providing a reliable connection that can endure the operational stresses of these engines.

ISC and ISF Series

• ISC CM850
• ISF3.8 CM2220 AN
• ISF3.8 CM2220 F103

The ISC and ISF series engines, known for their use in various industrial and commercial applications, are well-suited for the flexibility and durability offered by part 3935821.

ISL Series

• ISL9 CM2150 SN

The ISL series engines, often found in heavy-duty applications, require a hose that can handle significant movement and pressure, making part 3935821 an ideal choice.

QSB Series

• QSB4.5 CM850 (CM2850)
• QSB5.9 CM550
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

The QSB series engines, which are commonly used in agricultural and construction equipment, benefit from the flexibility and strength of part 3935821, ensuring efficient and reliable fluid transfer under demanding conditions.

B Series

• B6.7 CM2670 B153B
• ISD4.5 CM2220 D108

The B series engines, known for their robust performance in various applications, are compatible with part 3935821, providing the necessary flexibility and durability for these engines’ operational needs.

By ensuring compatibility with these diverse engine models, the Cummins Flexible Hose part 3935821 offers a versatile solution for maintaining efficient fluid transfer across a wide range of applications.

Role of Part 3935821 Flexible Hose in Engine Systems

The part 3935821 Flexible Hose is an essential component in various engine systems, facilitating the efficient transfer of fluids and gases while accommodating the dynamic movements and vibrations inherent in engine operation.

In plumbing systems, the flexible hose allows for the connection between rigid pipes and components, providing a durable and reliable seal that prevents leaks. Its flexibility is particularly beneficial in areas where thermal expansion and contraction occur, ensuring that the plumbing system remains intact and functional under varying temperature conditions.

For turbocharger applications, the flexible hose is used in both the air intake and exhaust systems. In the turbocharger plumbing, it connects the turbocharger to the intake manifold and the exhaust manifold. This connection must withstand high pressures and temperatures, and the flexibility of the hose helps to absorb the vibrations generated by the turbocharger, reducing stress on the connections and enhancing the longevity of the system.

In turbocharger oil systems, the flexible hose is employed to connect the oil supply and return lines to the turbocharger. This ensures a consistent flow of lubrication to the turbocharger’s bearings and seals, which is vital for its operation and durability. The hose’s flexibility accommodates the movement of the turbocharger, maintaining a secure connection despite the dynamic environment.

The integration of a resistor within the system can further enhance performance. The resistor can be used to manage the flow of fluids or gases, optimizing the system’s efficiency. The flexible hose works in tandem with the resistor, ensuring that the managed flow is delivered smoothly and without interruption.

Addressing corrosion is another area where the flexible hose plays a significant role. In environments where corrosion is a concern, the material of the hose is selected to resist corrosive agents, protecting the connected components and maintaining the integrity of the system. This is particularly important in marine or industrial applications where exposure to corrosive elements is common.

Overall, the part 3935821 Flexible Hose is a versatile and reliable component that enhances the performance and durability of engine systems by providing flexible, secure connections that can withstand the rigors of engine operation.

Conclusion

The Cummins 3935821 Flexible Hose is a critical component in the maintenance and operation of commercial trucks. Its design and features ensure reliable performance, flexibility, and durability in various engine systems. Proper installation, maintenance, and adherence to safety guidelines are essential for maximizing the benefits of this part. Additionally, considering the environmental impact of its use and disposal is important for sustainable practices in the automotive industry.