3911925
Plain Hose Coupling
Cummins®

Introduction

The Cummins 3911925 Plain Hose Coupling is a component designed for use in commercial trucks. It facilitates the secure connection of hoses within various fluid transfer systems, ensuring efficient and reliable fluid transfer, which is vital for the proper functioning of the truck’s systems.

Basic Concepts of Plain Hose Couplings

Plain hose couplings are devices used to connect hoses in fluid transfer systems. They provide a secure and leak-proof connection between two hoses or between a hose and a fitting. These couplings are commonly used in automotive, industrial, and hydraulic systems, allowing for quick and simple connections without the need for additional tools or complex procedures ¹.

Purpose of the Cummins 3911925 Plain Hose Coupling

The Cummins 3911925 Plain Hose Coupling connects hoses and facilitates the transfer of fluids in trucks. It is designed to ensure a secure and reliable connection, which is essential for the efficient operation of systems such as fuel, hydraulic, and coolant systems. By providing a stable connection point, this coupling helps maintain the integrity of the fluid transfer process, reducing the risk of leaks and ensuring consistent performance ².

Key Features

The Cummins 3911925 Plain Hose Coupling is constructed from durable materials that can withstand harsh operating conditions. It includes a simple yet effective mechanism for securing hoses, allowing for quick and easy connections. Additionally, it is designed to be compatible with a range of hose sizes and types, providing versatility in its applications ³.

Benefits

The Cummins 3911925 Plain Hose Coupling offers several benefits, including improved reliability by ensuring a secure connection between hoses, reducing the likelihood of leaks and disruptions in fluid transfer. The coupling is easy to install, requiring minimal tools and allowing for quick connections and disconnections as needed. Its durable construction ensures longevity, even in demanding operating conditions.

Installation Process

Installing the Cummins 3911925 Plain Hose Coupling involves preparing the hoses, sliding the coupling onto one hose, connecting the second hose, and verifying the connection for any signs of leakage or instability. Using the appropriate tools can facilitate a more secure installation.

Common Applications

The Cummins 3911925 Plain Hose Coupling is used in various systems within commercial trucks, including fuel systems, hydraulic systems, and coolant systems. It connects hoses for the transfer of diesel or other fuels, hydraulic fluid, and coolant, ensuring the proper operation of these systems.

Troubleshooting and Maintenance

To troubleshoot common issues with the Cummins 3911925 Plain Hose Coupling, inspect the connection points for leaks or damage. Ensure the coupling is properly seated on the hoses and that there are no obstructions preventing a secure fit. Regular maintenance involves checking the coupling for wear and tear and replacing it if necessary to prevent potential failures. Keeping the coupling and surrounding areas clean can also help prolong its service life.

Safety Considerations

When working with the Cummins 3911925 Plain Hose Coupling, handle it carefully to avoid damage. Store it in a dry, cool place to prevent deterioration. Follow local regulations for the disposal of automotive parts to ensure environmental safety. Always wear appropriate personal protective equipment when installing or maintaining the coupling to protect against potential hazards.

Cummins 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 and innovation in the commercial truck industry. The company’s product offerings cater to various applications, from on-highway to off-highway and industrial uses, providing reliable and efficient power solutions for its customers.

Cummins Engine Compatibility with Part 3911925

The Cummins 3911925 Plain Hose Coupling is designed to fit a variety of Cummins engines. This part is integral for ensuring a secure connection between hoses and engine components, facilitating the transfer of fluids and gases. Below is a detailed breakdown of the engines that are compatible with this part:

Cummins 4B3.9, 6B5.9, 6C8.3, B5.9 G, B5.9 GAS PLUS CM556, C GAS PLUS CM556, C8.3 G

These engines, primarily used in agricultural and industrial applications, benefit from the Plain Hose Coupling for maintaining efficient fluid transfer. The part’s design ensures a tight seal, preventing leaks and ensuring optimal engine performance.

ISB CM550, L9.3 L105

The ISB CM550 and L9.3 L105 engines, known for their reliability and efficiency, also require the Plain Hose Coupling for proper hose connections. This part is crucial in maintaining the integrity of the engine’s cooling and fuel systems.

QSB4.5 CM850 (CM2850), QSB5.9 44 CM550, QSB6.7 CM2250, QSB6.7 CM850 (CM2850), QSB7 CM2880 B117

The QSB series engines, which are widely used in both commercial and industrial applications, also utilize the Plain Hose Coupling. This part is essential for these engines to ensure that hoses remain securely attached, which is vital for the proper functioning of the engine’s systems.

By ensuring a secure and leak-free connection, the Cummins 3911925 Plain Hose Coupling plays a significant role in the maintenance and performance of these Cummins engines.

Role of Part 3911925 Plain Hose Coupling in Engine Systems

The Cummins 3911925 Plain Hose Coupling is instrumental in ensuring the seamless operation of various engine systems by facilitating secure and efficient fluid transfer between components.

• Block Vent Plumbing: This coupling connects the block vent to the exhaust system, allowing for the safe release of gases and preventing pressure build-up within the engine block.
• Check Valve: The hose coupling ensures unidirectional fluid flow, which is essential for maintaining system integrity and preventing backflow that could lead to component damage.
• Engine Coolant Vent: The coupling is used to connect the vent to the coolant system, allowing for the release of excess pressure and ensuring that the coolant system operates within safe parameters.
• Jacket Water Aftercooler: The hose coupling is employed to link the aftercooler to the engine’s water jacket, enabling efficient heat exchange and maintaining optimal operating temperatures for the engine.
• Turbocharger Arrangement: The coupling is utilized to connect the turbocharger to the engine’s lubrication system, ensuring that the turbocharger receives the necessary oil flow for lubrication and cooling, thereby enhancing its performance and longevity.

Conclusion

The Cummins 3911925 Plain Hose Coupling is a vital component in the operation of commercial trucks, ensuring secure and efficient fluid transfer in various engine systems. Its durable construction, ease of installation, and compatibility with a range of Cummins engines make it an essential part for maintaining the reliability and performance of these vehicles.