3930255
Breather Tube
Cummins®

Introduction

The Cummins 3930255 Breather Tube is a component designed for use in commercial trucks equipped with Cummins engines. Its role is to facilitate the equalization of pressure within the engine crankcase and to aid in the removal of moisture and contaminants, contributing to the overall health and efficiency of the engine ¹.

Basic Concepts of Breather Tubes

Breather tubes are integral components within an engine system, designed to allow air to enter and exit the crankcase as the engine operates. This process helps maintain a balanced pressure within the crankcase, preventing the buildup of excessive pressure that could lead to oil leaks or other engine damage ². Additionally, breather tubes play a part in expelling moisture and contaminants that may accumulate within the crankcase, thereby protecting engine components from corrosion and wear.

Purpose of the Cummins 3930255 Breather Tube

The Cummins 3930255 Breather Tube serves a specific function within the engine system of a truck. It is responsible for equalizing pressure within the engine crankcase, which is crucial for maintaining optimal engine operation. Furthermore, the breather tube aids in the removal of moisture and contaminants from the crankcase, helping to preserve the integrity of engine components and enhance overall engine performance.

Key Features

The Cummins 3930255 Breather Tube is constructed from durable materials, ensuring longevity and reliability in demanding commercial truck applications. Its design incorporates features that enhance performance, such as precise engineering to ensure a proper fit within the engine system. Additionally, the breather tube may possess unique attributes that set it apart from other breather tubes, contributing to its effectiveness in pressure equalization and moisture removal.

Benefits of Using the Cummins 3930255 Breather Tube

Utilizing the Cummins 3930255 Breather Tube offers several advantages for commercial truck operators. By facilitating pressure equalization and moisture removal within the engine crankcase, the breather tube contributes to improved engine performance and longevity. Additionally, its reliable construction and design elements enhance the overall reliability of the engine system, providing operators with peace of mind during operation.

Installation and Compatibility

Proper installation of the Cummins 3930255 Breather Tube is essential to ensure its effectiveness within the truck’s engine system. Guidelines for installation should be followed to ensure a secure and correct fit. Compatibility with various Cummins engine models should be verified to ensure optimal performance and integration within the engine system.

Maintenance and Troubleshooting

Regular maintenance practices are recommended to ensure the longevity and efficiency of the Cummins 3930255 Breather Tube. This may include periodic inspection for signs of wear or damage, as well as cleaning or replacement as necessary. Common issues that may arise, such as blockages or leaks, can often be addressed through troubleshooting steps outlined in maintenance guidelines.

Cummins Corporation Overview

Cummins Inc. is a renowned manufacturer with a rich history in the commercial truck industry. The company offers a diverse range of products, including engines, filtration systems, and aftermarket parts, known for their quality and reliability. Cummins has established a strong reputation for innovation and excellence, making it a trusted choice for commercial truck operators worldwide ³.

Role of Part 3930255 Breather Tube in Engine Systems

The breather tube, specifically part 3930255, is an essential component in maintaining the health and efficiency of engine systems. It is strategically integrated into the crankcase ventilation system, where it plays a significant role in managing the pressure and air-fuel mixture within the crankcase.

Integration with the Crankcase

The breather tube is connected to the crankcase, a vital part of the engine that houses the crankshaft. As the engine operates, it generates gases and vapors that need to be expelled to prevent pressure build-up. The breather tube facilitates this by allowing these byproducts to escape, thereby maintaining a stable internal pressure. This is particularly important for the longevity and performance of the crankshaft and other moving parts within the crankcase.

Function in Ventilation Systems

In more advanced engine systems, the breather tube is part of a comprehensive ventilation network. It works in conjunction with other components such as the Positive Crankcase Ventilation (PCV) valve. The PCV valve regulates the flow of gases from the crankcase back into the intake manifold, where they can be burned again in the combustion process. The breather tube ensures that any excess gases that the PCV valve cannot handle are safely vented out of the engine compartment.

Role in Emission Control

Beyond pressure management, the breather tube contributes to emission control. By efficiently venting crankcase gases, it helps reduce the release of harmful hydrocarbons into the atmosphere. This is an important aspect of modern engine design, where environmental impact is a significant consideration.

Interaction with Other Engine Components

The breather tube also interacts with other engine components such as the oil filler cap and the valve cover. These components are part of the ventilation path that the breather tube is a part of. Proper functioning of the breather tube ensures that these components operate within their designed parameters, contributing to overall engine reliability and performance.

Conclusion

In summary, the Cummins 3930255 Breather Tube is a key player in the engine’s ventilation and emission control systems. Its role in managing crankcase pressure and facilitating the safe venting of gases is integral to the efficient and environmentally responsible operation of modern engines.