5307351
Breather Tube
Cummins®

Introduction

The Cummins 5307351 Breather Tube is a component designed to facilitate the operation of commercial trucks by ensuring the engine system functions efficiently. This part is integral to maintaining the health and performance of the engine, particularly by managing pressure and moisture within the crankcase.

Basic Concepts of Breather Tubes

A breather tube is a component found in a truck’s engine system that allows for the release of gases and vapors from the crankcase. Its function is to maintain a balanced pressure within the engine, preventing the buildup of harmful gases that could otherwise lead to engine damage. By allowing air to enter and exit the crankcase as needed, the breather tube helps to keep the engine environment stable and conducive to optimal performance ¹.

Purpose of the Cummins 5307351 Breather Tube

The Cummins 5307351 plays a role in the operation of a truck by facilitating pressure equalization and moisture removal from the engine crankcase. As the engine operates, it generates heat and pressure within the crankcase. This part allows these pressures to equalize, preventing damage to engine seals and components. Additionally, it helps to remove moisture that may accumulate, which if left unchecked, could lead to corrosion and other forms of engine wear ².

Key Features

The Cummins 5307351 is constructed from durable materials that ensure longevity and reliable performance. Its design includes features such as a robust connection point to the crankcase and a filtration system to trap contaminants before they can enter the engine. These elements contribute to the breather tube’s ability to perform effectively under the demanding conditions typical of commercial truck operation.

Benefits

The use of the Cummins 5307351 offers several benefits. It contributes to improved engine performance by maintaining a stable crankcase environment. This stability helps to extend the lifespan of engine components by reducing wear and tear. Furthermore, the breather tube enhances the overall reliability of the truck, ensuring that it operates smoothly and efficiently over time.

Installation Considerations

Proper installation of the Cummins 5307351 is important for ensuring optimal performance and longevity. Guidelines recommend that the tube be securely attached to the crankcase and that all connections are tight to prevent leaks. It is also advisable to verify that the filtration system is intact and functioning correctly to maximize the breather tube’s effectiveness.

Troubleshooting Common Issues

Common problems associated with breather tubes include blockages or leaks. Blockages can occur due to the accumulation of debris within the tube, while leaks may result from loose connections or damage to the tube itself. Troubleshooting steps include inspecting the tube for signs of obstruction or damage, cleaning or replacing the filtration system as necessary, and ensuring all connections are secure.

Maintenance Tips

Regular maintenance of the Cummins 5307351 is recommended to ensure it remains in optimal condition. This includes periodic inspection for signs of wear or damage, cleaning the filtration system to remove accumulated contaminants, and checking connections for tightness. Adhering to these maintenance practices helps to prolong the life of the breather tube and maintain engine performance.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins serves commercial, industrial, and automotive markets worldwide. The company’s product range includes a variety of components and systems designed to enhance the performance and reliability of vehicles and equipment.

Compatibility

The Cummins Breather Tube part number 5307351 is designed to fit a range of Cummins engines. Specifically, this part is compatible with the following engine models:

• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• QSB6.7 CM2250
• QSB6.7 CM2350 B105

This breather tube is engineered to ensure proper ventilation and pressure management within the engine’s crankcase. It is crucial for maintaining optimal engine performance and longevity by preventing the buildup of harmful gases and pressure. The part is manufactured to meet Cummins’ stringent quality standards, ensuring reliability and durability in various operating conditions.

By using the Cummins Breather Tube part number 5307351, engine owners can maintain the integrity of their engines and avoid potential issues related to crankcase pressure and ventilation.

Role of Part 5307351 Breather Tube in Engine Systems

The breather tube, specifically part 5307351, is a component in the overall functionality of engine systems. Its primary role is to manage the pressure within the crankcase by allowing air and gases to escape, thereby maintaining a stable environment for the engine’s internal components.

Integration with Plumbing Systems

In the context of engine plumbing, the breather tube is connected to various hoses and pipes that facilitate the flow of gases from the crankcase to the atmosphere or back into the intake system. This connection ensures that any buildup of pressure is effectively vented, preventing potential damage to seals and gaskets. The breather tube works in conjunction with other plumbing components to create a balanced system that enhances engine performance and longevity.

Function within the Crankcase Breather System

The crankcase breather system is designed to expel contaminants and excess pressure from the crankcase. Part 5307351 plays a significant role in this system by providing a direct pathway for gases to exit. This is particularly important in high-performance engines where the crankcase may experience increased pressure due to higher RPMs and greater mechanical stress. The breather tube helps in reducing the risk of oil leaks and ensures that the crankcase remains at an optimal pressure, contributing to the engine’s overall efficiency and reliability.

Interaction with Other Engine Components

Beyond its direct role, the breather tube also interacts with other engine 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 complements this function by providing an alternative route for gases to escape, especially when the PCV valve is unable to handle the volume. This dual-path system ensures that the engine operates smoothly under varying conditions.

Conclusion

In summary, part 5307351 is a vital element in the engine’s breather and plumbing systems, working seamlessly with other components to maintain pressure balance, expel contaminants, and enhance engine performance.