3939864
Folded Hose
Cummins®

The Cummins 3939864 Folded Hose is a specialized component designed for use in heavy-duty truck systems. Its purpose is to facilitate the transfer of fluids within the truck’s system, ensuring efficient operation and reliability. This part is significant due to its role in maintaining the integrity and performance of the truck’s fluid systems.

Basic Concepts of Folded Hoses

Folded hoses are a type of flexible tubing used in automotive and industrial applications. They are characterized by their accordion-like structure, which allows for greater flexibility and the ability to accommodate movement and vibration. These hoses function by providing a durable and reliable pathway for fluids, such as coolant, fuel, or hydraulic fluid, to travel between components. Their general applications in automotive systems include use in engine compartments, where they must withstand high temperatures and pressures, and in undercarriage systems, where they need to be resistant to abrasion and environmental factors ¹.

Purpose of the 3939864 Folded Hose

This Cummins part plays a role in the operation of a truck by facilitating the transfer of fluids within the system. It is typically used in applications where flexibility and durability are required, such as in the cooling system, where it may connect the engine to the radiator or other cooling components. Its function within the overall system is to ensure that fluids are transported efficiently and without leakage, contributing to the truck’s overall performance and reliability.

Key Features

The primary features of the 3939864 Folded Hose include its robust design, which incorporates multiple layers of material to enhance durability and resistance to wear. The hose is constructed from high-quality materials, such as synthetic rubber and reinforced with textile or wire, to provide strength and flexibility. Unique attributes of this hose include its ability to withstand high temperatures and pressures, as well as its resistance to chemicals and abrasion. These features contribute to its enhanced performance in demanding applications ².

Benefits

This Cummins part offers several advantages in truck operations. Its improved durability ensures a longer service life, reducing the need for frequent replacements. The hose’s efficient design allows for optimal fluid flow, contributing to the truck’s overall performance. Additionally, its reliability in high-stress environments helps maintain the truck’s operational efficiency and safety.

Installation Considerations

When installing the 3939864 Folded Hose, it is important to follow guidelines and best practices to ensure proper function and longevity. This includes ensuring that the hose is correctly routed to avoid sharp bends or kinks, which could impede fluid flow or cause damage. It is also recommended to use the appropriate clamps and fittings to secure the hose in place and prevent leaks. Cummins may provide specific requirements or recommendations for installation, which should be carefully followed.

Troubleshooting Common Issues

Typical problems that may arise with the 3939864 Folded Hose include leaks, cracks, or blockages. Diagnostic steps to identify these issues may involve visual inspection for signs of wear or damage, as well as testing the hose for proper fluid flow. Solutions may include repairing or replacing the hose, ensuring that it is correctly installed, and addressing any underlying issues that may be causing the problem, such as excessive vibration or pressure ³.

Maintenance Tips

To ensure the longevity and optimal performance of the 3939864 Folded Hose, routine maintenance is recommended. This includes regular inspection for signs of wear, damage, or leaks, and cleaning the hose to remove any buildup of dirt or debris. It is also important to check the clamps and fittings for proper tightness and condition, replacing them if necessary. Following these maintenance tips can help prevent issues and ensure the hose continues to function effectively.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a history spanning over a century, Cummins has established a reputation for quality, innovation, and reliability in the automotive industry, particularly in the context of heavy-duty truck components. The company’s product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of commercial and industrial applications.

Cummins Folded Hose Part 3939864 Compatibility

The Cummins Folded Hose part number 3939864 is designed to fit a variety of ISC and ISL engines. Here is a detailed breakdown of its compatibility:

ISC Engines

• ISC CM2150
• ISC CM554
• ISC CM850
• ISC8.3 CM2250

These ISC engines are part of Cummins’ lineup and are known for their reliability and performance in various applications. The folded hose part 3939864 is engineered to seamlessly integrate with these models, ensuring efficient operation and maintenance.

ISL Engines

• ISL CM2150
• ISL CM554
• ISL9 CM2150 SN
• ISL9 CM2250

The ISL series engines are also designed for durability and efficiency, often used in heavy-duty applications. The folded hose part 3939864 is compatible with these engines, providing a crucial connection that maintains the integrity of the engine’s cooling and exhaust systems.

Grouping Compatibility

The compatibility of the Cummins Folded Hose part 3939864 can be grouped based on the engine series:

• ISC Series: ISC CM2150, ISC CM554, ISC CM850, ISC8.3 CM2250
• ISL Series: ISL CM2150, ISL CM554, ISL9 CM2150 SN, ISL9 CM2250

This grouping helps in understanding the broader application of the hose part across different engine models within the same series.

Role of Part 3939864 Folded Hose in Engine Systems

The part 3939864 Folded Hose is an integral component in various engine systems, facilitating the efficient transfer of fluids and gases. Its application extends across multiple subsystems, ensuring optimal performance and reliability.

Alternator Mounting Systems

In alternator mounting systems, the Folded Hose plays a significant role in managing the flow of coolant. This is essential for maintaining the alternator’s operating temperature within specified limits. The hose ensures that coolant is efficiently circulated around the alternator, preventing overheating and ensuring consistent electrical output. This, in turn, supports the overall efficiency of the charging system, contributing to the battery’s health and the vehicle’s electrical system stability.

Conclusion

The Cummins 3939864 Folded Hose is a critical component in heavy-duty truck systems, designed to ensure the efficient transfer of fluids and maintain the reliability of the truck’s systems. Its robust design, compatibility with various Cummins engines, and role in critical subsystems highlight its importance in ensuring optimal performance and longevity of the vehicle.