3917791
Plain Hose
Cummins®

The Cummins 3917791 Plain Hose is a component designed for use in commercial trucks. It serves a specific function within the truck’s fluid systems, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and role is fundamental for maintaining and optimizing truck performance.

Basic Concepts of Plain Hoses

Plain hoses are flexible tubes used to transport fluids within various systems. They are characterized by their simplicity, lacking reinforcements such as wire spirals or textile braids found in other hose types. This design allows for flexibility and ease of installation, making them suitable for a wide range of applications. Plain hoses are typically used in less demanding environments where high pressure or extreme conditions are not encountered ¹.

Purpose of the Cummins 3917791 Plain Hose

The Cummins 3917791 Plain Hose is integral to the fluid systems of commercial trucks. It is designed to transport specific fluids, ensuring they reach their intended destinations within the truck’s systems. This hose plays a role in maintaining the integrity and efficiency of the fluid transfer process, contributing to the truck’s overall performance ².

Key Features

The Cummins 3917791 Plain Hose is constructed from materials that offer a balance of flexibility and durability. Its design includes features that enhance performance, such as smooth inner walls to facilitate fluid flow and robust outer layers to withstand operational stresses. These characteristics ensure the hose can endure the demands of commercial truck environments ³.

Benefits

Utilizing the Cummins 3917791 Plain Hose offers several advantages. It contributes to improved system efficiency by ensuring smooth fluid transfer. The design reduces the risk of leaks, enhancing safety and reliability. Additionally, its durability under various operating conditions helps maintain consistent performance over time ⁴.

Installation Considerations

When installing the Cummins 3917791 Plain Hose, it is important to follow guidelines to ensure proper fitting and securement. This includes verifying compatibility with the truck’s system, using appropriate fittings, and employing methods to secure the hose in place. Careful installation helps prevent issues such as leaks or disconnections.

Troubleshooting Common Issues

Common issues with plain hoses may include leaks, wear, and blockages. Identifying these problems early is important for maintaining system integrity. Troubleshooting steps may involve inspecting the hose for signs of damage, ensuring fittings are secure, and checking for obstructions within the hose. Addressing these issues promptly can help maintain efficient operation.

Maintenance Tips

Regular maintenance of the Cummins 3917791 Plain Hose is important for prolonging its service life. This includes conducting routine inspections for signs of wear or damage, ensuring fittings remain secure, and addressing any issues as they arise. Adhering to these practices helps ensure the hose continues to perform reliably.

Replacement Procedures

Replacing the Cummins 3917791 Plain Hose should be done with care to ensure system integrity is maintained. This involves gathering the necessary tools, following safety precautions, and ensuring the system is properly bled or purged after the replacement. Detailed steps for replacement can be found in the manufacturer’s guidelines.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. Their product range includes engines, filtration systems, and aftermarket parts, all designed to meet the demanding requirements of commercial applications.

Cummins Part 3917791: Plain Hose Compatibility with Cummins Engines

The Cummins part 3917791, a Plain Hose, is designed to fit seamlessly within various Cummins engine models. This hose is integral for maintaining the engine’s operational efficiency by ensuring proper fluid flow and pressure within the system. Below is a detailed look at its compatibility with specific Cummins engine models:

4B3.9 Engine

The Plain Hose 3917791 is engineered to integrate with the 4B3.9 engine, providing a reliable connection for various fluid lines. This hose ensures that the engine’s cooling system, fuel delivery system, and other critical fluid pathways operate without leaks or restrictions.

6B5.9 Engine

For the 6B5.9 engine, the Plain Hose 3917791 is a crucial component that supports the engine’s complex fluid management system. This hose is designed to withstand the high pressures and temperatures typical of this engine model, ensuring durability and longevity.

6C8.3 Engine

In the 6C8.3 engine, the Plain Hose 3917791 plays a vital role in maintaining the integrity of the engine’s fluid systems. Its design allows for precise fitting and secure connections, which is essential for the engine’s performance and reliability.

Grouping of Engines

The Plain Hose 3917791 is versatile and compatible with the following Cummins engine models:

• 4B3.9
• 6B5.9
• 6C8.3

This hose is engineered to meet the specific requirements of these engines, ensuring optimal performance and reliability across different applications.

Role of Part 3917791 Plain Hose in Engine Systems

The 3917791 Plain Hose is an essential component in various engine systems, facilitating the transfer of fluids and gases necessary for optimal engine performance. Its applications span across several key areas:

Aftercooler Plumbing

In aftercooler systems, the 3917791 Plain Hose is utilized to connect the aftercooler to other components within the engine. This hose ensures the efficient flow of cooled air from the aftercooler to the engine’s intake system. Proper airflow is vital for reducing intake air temperature, which enhances combustion efficiency and overall engine performance.

General Plumbing

Within the broader context of engine plumbing, the 3917791 Plain Hose serves as a versatile connector. It links various engine components, such as sensors, actuators, and control units, ensuring seamless communication and fluid transfer. This connectivity is fundamental for maintaining the engine’s operational integrity and responsiveness.

Aftercooler Water Plumbing

For engines equipped with water-cooled aftercoolers, the 3917791 Plain Hose plays a significant role in the water plumbing system. It transports coolant between the aftercooler and the engine’s cooling system, helping to maintain optimal temperatures. This temperature regulation is essential for preventing overheating and ensuring consistent engine performance under varying load conditions.

Aftercooler Water (WTR) System

In systems designated as aftercooler water (WTR), the 3917791 Plain Hose is integral to the water circulation loop. It ensures that coolant is efficiently distributed throughout the aftercooler, enhancing its ability to dissipate heat. This efficient heat management contributes to improved engine reliability and longevity.

Short Engine Kit

In the context of short engine kits, the 3917791 Plain Hose is often used to connect compact engine components. Its flexibility and durability make it ideal for the tight spaces and high-stress environments typical of such kits. The hose ensures that all necessary fluids and gases are properly routed, supporting the kit’s overall functionality and performance.

Conclusion

The Cummins 3917791 Plain Hose is a critical component in the fluid systems of commercial trucks, ensuring efficient and reliable fluid transfer. Its compatibility with various Cummins engine models, coupled with its robust design and features, makes it an essential part for maintaining engine performance and reliability. Proper installation, maintenance, and timely replacement are key to maximizing the benefits of this Cummins part.