3904062
Elbow Hose
Cummins®

The 3904062 Elbow Hose, manufactured by Cummins, is a specialized component designed for use in commercial trucks. This hose is integral to the fluid systems of heavy-duty vehicles, facilitating the transport of various fluids essential for the operation of these machines. Hoses, in general, play a significant role in the fluid dynamics of trucks, ensuring that fluids are routed efficiently and safely throughout the vehicle’s systems ¹.

Basic Concepts of Elbow Hoses

An elbow hose is a type of hose that incorporates a bend, allowing it to navigate around obstacles and fit into tight spaces within a vehicle’s fluid system. Unlike straight hoses, which run in a linear path, elbow hoses enable more flexible routing of fluids. These hoses are typically made from materials such as rubber, reinforced with fabric or metal, to withstand high pressure and temperature variations. The choice of material impacts the hose’s flexibility, durability, and resistance to environmental factors ².

Role of the 3904062 Elbow Hose in Truck Operation

This Cummins part is designed to play a specific role in the operation of a truck, particularly within its fluid systems. It is part of the systems responsible for transporting fluids such as coolant, fuel, or hydraulic fluid. The hose’s design, featuring a precise bend radius, allows it to efficiently route fluids around the engine and other components, ensuring that the fluid reaches its destination without obstruction. This efficient routing is crucial for maintaining the performance and reliability of the truck’s systems.

Key Features of the 3904062 Elbow Hose

The 3904062 Elbow Hose boasts several key features that enhance its performance and durability. Its bend radius is carefully engineered to fit the specific contours of a truck’s engine compartment, allowing for optimal fluid flow. The hose features secure connection types, ensuring that fluids are transported without leaks. Additionally, unique design elements may include reinforced sections to withstand high pressure or specialized coatings to resist chemical degradation, further enhancing the hose’s longevity and reliability.

Benefits of Using the 3904062 Elbow Hose

Incorporating this part into a truck’s fluid system offers several benefits. The hose’s design contributes to improved fluid flow, reducing the risk of blockages or restrictions. Its durable construction minimizes the risk of leaks, even under high-stress conditions, ensuring the integrity of the fluid system. Furthermore, the hose’s resistance to wear and environmental factors enhances its durability, providing long-term reliability for the vehicle.

Troubleshooting and Maintenance Suggestions

To ensure the longevity and performance of the 3904062 Elbow Hose, regular maintenance and inspections are recommended. Common issues such as leaks or blockages can often be identified through visual inspections or by monitoring the system’s performance. Should issues arise, steps for maintenance or replacement should be taken promptly to prevent further damage to the system. Tips for prolonging the lifespan of the hose include ensuring it is properly installed, avoiding sharp bends that could stress the material, and conducting regular inspections for signs of wear or damage.

Cummins: Manufacturer Overview

Cummins Inc. is a renowned manufacturer in the commercial truck industry, with a history of innovation and quality in automotive components. The company offers a wide range of products designed to enhance the performance and reliability of commercial vehicles. Cummins’ commitment to quality is evident in its rigorous manufacturing processes and the durability of its products, including the 3904062 Elbow Hose. The company’s reputation for excellence and innovation makes it a trusted choice for components in the commercial truck industry ³.

Compatibility with Cummins Engines

The 3904062 Elbow Hose is designed to fit seamlessly with a range of Cummins engines, ensuring efficient fluid transfer and maintaining system integrity. This part is compatible with the following engines:

• 4B3.9
• 6B5.9
• B4.5
• QSB3.9 30 CM550
• QSB5.9 30 CM550

For the more robust and high-performance engines, the 3904062 Elbow Hose is also suitable for:

• QSK95 CM2350 K111
• QSK95 CM2350 K113

These engines, known for their durability and power, benefit from the precise engineering of the 3904062 Elbow Hose, which ensures optimal performance and longevity.

Role of 3904062 Elbow Hose in Engine Systems

The 3904062 Elbow Hose is an integral component in various engine systems, facilitating the efficient transfer of fluids and gases. In the context of air cleaner plumbing, this elbow hose directs airflow from the air cleaner to the intake manifold, ensuring that the engine receives a consistent supply of clean air for combustion.

Within the air intake plumbing, the elbow hose plays a significant role by connecting different sections of the intake tract, allowing for smooth transitions and reductions in turbulence. This enhances the overall efficiency of the air intake system.

In the air intake system assembly, the 3904062 Elbow Hose is often used to connect the air cleaner to the throttle body or intake manifold. Its design helps maintain a sealed connection, preventing air leaks that could affect engine performance.

For the crankcase breather system, the elbow hose is employed to route crankcase vapors to the intake tract or a dedicated ventilation system. This helps in managing pressure within the crankcase and ensuring that harmful vapors are properly expelled.

In a breather kit, the elbow hose is a key component that connects the breather valve to the intake system or atmosphere. This setup is essential for maintaining optimal crankcase pressure and ensuring the longevity of engine components.

When repowering an engine, the 3904062 Elbow Hose may be utilized in the new air cleaner arrangement to adapt the existing plumbing to the upgraded system. This ensures compatibility and efficient airflow in the modified engine setup.

Overall, the 3904062 Elbow Hose is a versatile component that enhances the functionality and performance of various engine systems by providing reliable connections and efficient fluid/gas transfer.

Conclusion

The 3904062 Elbow Hose by Cummins is a critical component in the fluid systems of commercial trucks, offering efficient fluid transfer, durability, and compatibility with a wide range of Cummins engines. Regular maintenance and proper installation are key to ensuring its longevity and performance, contributing to the overall reliability and efficiency of the vehicle’s systems.