3918607
Elbow Hose
Cummins®

The 3918607 Elbow Hose, a component manufactured by Cummins, is designed for use in commercial trucks. This article provides an overview of the elbow hose, its function, key features, benefits, and maintenance suggestions.

Basic Concepts of Elbow Hoses

An elbow hose is a type of flexible tubing used in various fluid transfer systems. It is characterized by a bend or elbow, which allows it to navigate around obstacles and fit into compact spaces. Elbow hoses are commonly used in automotive, industrial, and marine applications to transport fluids such as coolant, fuel, oil, and air ¹.

Function of the 3918607 Elbow Hose

This Cummins part plays a role in the fluid transfer systems of commercial trucks by providing a flexible connection between components. It allows for the smooth and efficient transfer of fluids while accommodating the movement and vibration inherent in truck operations ².

Key Features

• Constructed from durable materials to withstand high pressure and temperature.
• Designed with a specific bend to fit into tight spaces and navigate around obstacles.
• Compatible with various fluid types, including coolant, fuel, oil, and air.
• Engineered to meet or exceed industry standards for performance and reliability ³.

Benefits

• Enhances the flexibility and durability of fluid transfer systems.
• Reduces the risk of leaks and fluid loss by providing a secure and reliable connection.
• Improves the overall efficiency and performance of the truck’s fluid transfer systems.
• Contributes to the longevity and reliability of the truck’s components and systems.

Troubleshooting and Maintenance

Regular inspection and maintenance of the 3918607 Elbow Hose are recommended to ensure optimal performance and longevity. This includes checking for signs of wear, damage, or leaks, and replacing the hose as needed. Proper installation and torque specifications should be followed to ensure a secure and leak-free connection.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a commitment to innovation and customer satisfaction, Cummins provides reliable and efficient solutions for a wide range of industries, including commercial trucking.

Engine Compatibility for Elbow Hose Part 3918607

The 3918607, an Elbow Hose, is designed to fit into various engine configurations. This part is integral for maintaining the fluid pathways within the engine’s cooling and exhaust systems. Below is a detailed overview of the engines that are compatible with this specific part:

Cummins Engines Compatible with Elbow Hose Part 3918607

• 4B3.9
• 6B5.9
• 6C8.3
• B5.9 G
• B5.9 GAS PLUS CM556
• C GAS PLUS CM556
• C8.3 G
• ISB CM550
• ISB5.9G CM2180
• QSB5.9 44 CM550

Grouping of Compatible Engines

• 4B3.9 and 6B5.9: These engines, while differing in displacement, share similar design philosophies and may require this hose for maintaining fluid pathways.
• 6C8.3 and C8.3 G: These engines are part of the Cummins C-Series and G-Series, respectively, and both utilize the 3918607 Elbow Hose to ensure proper fluid flow.
• B5.9 G, B5.9 GAS PLUS CM556, and C GAS PLUS CM556: These engines, part of the B-Series and C-Series, are designed for various applications and benefit from the use of this hose in their fluid systems.
• ISB CM550 and ISB5.9G CM2180: These engines, part of the ISB and ISB5.9G series, are known for their reliability and efficiency, and the 3918607 Elbow Hose is essential for their operation.
• QSB5.9 44 CM550: This engine, part of the QSB series, is designed for heavy-duty applications and relies on the 3918607 Elbow Hose for maintaining fluid pathways.

By ensuring the proper fitment of the 3918607 Elbow Hose, these engines can maintain optimal performance and longevity.

Role of Part 3918607 Elbow Hose in Various Engine Systems

This part is an essential component in several engine systems, facilitating the efficient transfer of fluids and gases. Its applications span across different subsystems, each playing a significant role in the overall performance and reliability of the engine.

Aftercooler Plumbing

In the aftercooler plumbing system, the 3918607 Elbow Hose directs the flow of cooled air from the aftercooler to the engine’s air intake. This ensures that the air entering the combustion chamber is at an optimal temperature, enhancing combustion efficiency and reducing the risk of detonation.

Aid and Coolant Heater Starting Arrangement

Within the aid and coolant heater starting arrangement, the Elbow Hose is utilized to route heated coolant to critical engine components during startup. This helps in reducing viscosity and improving lubrication, which is particularly beneficial in cold-weather operations.

Compressor Air Inlet Arrangement

The compressor air inlet arrangement benefits from the 3918607 Elbow Hose by providing a smooth transition for air entering the compressor. This reduces turbulence and pressure losses, contributing to more efficient compression and better overall engine performance.

Oil Fill Arrangement

In the oil fill arrangement, the Elbow Hose is employed to guide the flow of oil to the sump or reservoir. This ensures that the lubrication system is adequately supplied, maintaining proper lubrication of moving parts and reducing wear.

Turbocharger and Breather Systems

For the turbocharger and breather systems, the 3918607 Elbow Hose plays a role in managing the flow of gases. In the turbocharger setup, it helps in directing the exhaust gases to drive the turbine, while in the breather system, it aids in venting crankcase gases, preventing pressure build-up and maintaining engine health.

Crankcase Connection

The crankcase connection utilizes the Elbow Hose to facilitate the transfer of gases and fluids between the crankcase and other engine components. This is vital for maintaining proper ventilation and pressure balance within the crankcase.

Air Compressor Inlet Cover

In the air compressor inlet cover, the 3918607 Elbow Hose ensures a secure and efficient connection for the air supply. This is important for maintaining the compressor’s performance and longevity.

Cylinder Block Plumbing

The cylinder block plumbing system employs the Elbow Hose to route coolant and other fluids to and from the cylinder block. This is essential for effective cooling and lubrication of the cylinder walls and pistons.

Aftercooler Water and Crankcase Breather Plumbing

In both the aftercooler water and crankcase breather plumbing systems, the 3918607 Elbow Hose is used to manage the flow of water and gases, respectively. This helps in maintaining the efficiency and reliability of these subsystems.

Aftercooler Water Turbocharger Location

Finally, at the aftercooler water turbocharger location, the Elbow Hose ensures that the cooled water is efficiently routed to the turbocharger, aiding in its cooling and prolonging its operational life.

Conclusion

The 3918607 Elbow Hose is a vital component in the fluid transfer systems of commercial trucks, offering flexibility, durability, and efficient fluid transfer. Regular maintenance and proper installation are crucial for ensuring the longevity and reliability of this part and the overall performance of the truck’s engine systems.