3904060
Hump Hose
Cummins®

The Cummins 3904060 Hump Hose is a component designed for use in commercial trucks. It serves a specific function within the truck’s system, contributing to the overall efficiency and performance of the vehicle. Understanding its purpose and significance is fundamental for maintaining and optimizing the operation of commercial trucks.

Basic Concepts and Functionality

A hump hose is a type of hose used in the cooling system of trucks. It is designed to route coolant between different components of the engine, ensuring that heat is effectively managed and dissipated. The hump hose operates by providing a flexible connection that can accommodate the movements and vibrations inherent in a truck’s engine system, thus maintaining a consistent flow of coolant ¹.

Purpose of the 3904060 Hump Hose

This Cummins part plays a role in the truck’s cooling system by connecting the engine block to the radiator or other cooling components. Its function is to facilitate the circulation of coolant, which helps in regulating the engine temperature and preventing overheating. This component is integral to maintaining the engine’s operational temperature within a safe range ².

Key Features

The 3904060 Hump Hose is characterized by several design elements and materials that enhance its performance and durability. It is constructed from high-quality rubber or synthetic materials that are resistant to heat, pressure, and chemical degradation. The hose is designed with reinforced ends to ensure a secure fit and prevent leaks. Additionally, it features a humped shape that allows it to clear obstructions and maintain a smooth flow of coolant.

Benefits

The advantages of the 3904060 Hump Hose include improved durability due to its robust construction, enhanced performance through efficient coolant flow, and reliability in various operating conditions. Its design ensures longevity and reduces the need for frequent replacements, contributing to the overall efficiency of the truck’s cooling system.

Installation Process

Installing the 3904060 Hump Hose involves several steps to ensure proper fitting and function. First, the old hose should be removed, taking care to note its routing and connections. The new hose should then be positioned according to the original path, ensuring that it is not kinked or twisted. Clamps should be used to secure the hose at both ends, and the system should be checked for leaks after installation.

Maintenance Tips

To ensure the longevity and optimal performance of the 3904060 Hump Hose, regular maintenance practices should be followed. This includes inspecting the hose for signs of wear, cracks, or leaks during routine checks. It is also important to ensure that the clamps are tight and that the hose is properly routed to avoid unnecessary stress or abrasion.

Troubleshooting Common Issues

Common problems associated with the 3904060 Hump Hose may include leaks, cracks, or blockages. If a leak is detected, the hose should be replaced immediately to prevent coolant loss and potential engine damage. Cracks can often be identified through visual inspection, and any blockages should be cleared to ensure proper coolant flow.

Compatibility and Applications

The 3904060 Hump Hose is designed for use in specific types of trucks and engine models. It is important to verify compatibility to ensure proper function and integration within the truck’s cooling system.

Safety Considerations

When working with the 3904060 Hump Hose, it is important to observe safety guidelines and precautions. This includes ensuring that the engine is cool before beginning any work, using appropriate tools and equipment, and following manufacturer recommendations for installation and maintenance.

Cummins Overview

Cummins Inc. is a well-established company with a long history in the commercial truck industry. Known for its high-quality engines and components, Cummins has built a reputation for reliability and performance. The company’s commitment to innovation and customer satisfaction has made it a trusted name in the industry ³.

Hump Hose Compatibility with Cummins Engines

The Cummins part number 3904060, known as the Hump Hose, is a critical component in the engine’s cooling system. This hose is designed to fit seamlessly with a variety of Cummins engines, ensuring efficient coolant flow and maintaining optimal engine temperature. Below is a detailed description of how this part integrates with various Cummins engines.

4B3.9 and QSB3.9 30

The Hump Hose is compatible with the 4B3.9 and QSB3.9 30 engines. These engines are known for their reliability and performance in various applications, from agricultural to industrial use. The hose ensures that the coolant flows correctly between the engine block and the radiator, preventing overheating and maintaining engine efficiency.

6B5.9 and QSB5.9 30

For the 6B5.9 and QSB5.9 30 engines, the Hump Hose is an essential part of the cooling system. These engines are typically used in heavy-duty applications, such as construction equipment and large trucks. The hose’s design allows for efficient coolant circulation, which is crucial for the longevity and performance of these powerful engines.

6C8.3

The 6C8.3 engine also benefits from the Hump Hose. This engine is commonly found in medium-duty trucks and buses. The hose’s role in the cooling system is to ensure that the coolant is properly routed, which helps in maintaining the engine’s operational temperature and preventing potential damage from overheating.

B4.5 and QSB4.5 CM850 (CM2850)

The Hump Hose is compatible with the B4.5 and QSB4.5 CM850 (CM2850) engines. These engines are often used in agricultural and industrial machinery. The hose’s design ensures that the coolant flows efficiently, which is vital for the engine’s performance and durability in demanding environments.

ISB CM550

The ISB CM550 engine is another model that utilizes the Hump Hose. This engine is known for its high performance and reliability in various applications, including heavy-duty trucks and industrial equipment. The hose’s integration into the cooling system is crucial for maintaining the engine’s optimal temperature and ensuring smooth operation.

B5.9 G

The B5.9 G engine also requires the Hump Hose for its cooling system. This engine is typically used in agricultural and construction machinery. The hose’s design ensures that the coolant is properly circulated, which is essential for the engine’s longevity and efficiency.

QSB5.9 30 CM550

Lastly, the QSB5.9 30 CM550 engine is compatible with the Hump Hose. This engine is often found in heavy-duty trucks and industrial applications. The hose’s role in the cooling system is to ensure that the coolant flows correctly, which is crucial for maintaining the engine’s performance and preventing overheating.

Part 3904060 Hump Hose Component Usage

The part 3904060 Hump Hose is an essential component in various engine systems, facilitating the efficient transfer of air within the system. Its role is significant in ensuring that the engine receives a consistent and clean air supply, which is vital for optimal performance and longevity.

Air Cleaner Integration

In the air cleaner system, the Hump Hose connects the air cleaner to the air intake system assembly. This connection is designed to minimize air leaks and ensure that the air entering the engine is filtered and free from contaminants. The Hump Hose’s flexible design accommodates the movement and vibrations inherent in engine operation, maintaining a secure and leak-free seal.

Air Intake System Assembly

Within the air intake system assembly, the Hump Hose plays a key role in directing air from the air cleaner to the engine’s intake manifold. This ensures that the air, once filtered, is efficiently channeled to the combustion chambers. The Hump Hose’s design helps in reducing turbulence and pressure drops, contributing to a smoother airflow and enhancing engine efficiency.

Cleaner, Air, and Plumbing Connections

The Hump Hose also serves as a critical link in the plumbing of the air system. It connects various components such as the air cleaner and the intake manifold, ensuring a seamless flow of air. This integration is vital for maintaining the integrity of the air supply system, preventing any disruptions that could affect engine performance.

Conclusion

In summary, the 3904060 Hump Hose is a fundamental component in both the cooling and air supply systems of engine assemblies. Its role in connecting and sealing various parts ensures that the engine receives a consistent, clean, and efficient air supply, which is essential for the engine’s performance and durability. Proper installation, maintenance, and understanding of its compatibility with various Cummins engines are crucial for maximizing the efficiency and longevity of commercial trucks.