3936172
Breather Tube
Cummins®

Introduction

The Cummins 3936172 Breather Tube is a component designed for use in commercial trucks. It serves a specific function within the engine system, contributing to the overall efficiency and reliability of the vehicle. This breather tube is integral to maintaining the proper operation of the engine by facilitating pressure regulation and ventilation ³.

Basic Concepts of Breather Tubes

A breather tube is a component found in engine systems that allows for the release of gases and vapors from the crankcase. Its operation is based on the principle of pressure equalization. As the engine operates, it generates gases and vapors that need to be expelled to prevent pressure build-up, which could lead to leaks or damage. The breather tube provides a controlled pathway for these byproducts to escape, ensuring that the engine operates within safe pressure limits ¹.

Purpose of the 3936172 Breather Tube

The Cummins 3936172 Breather Tube plays a role in the engine system by regulating pressure and allowing for the ventilation of gases and vapors from the crankcase. This helps maintain a stable environment within the engine, which is crucial for its efficient and reliable operation. By managing pressure and facilitating the release of byproducts, the breather tube contributes to the longevity and performance of the engine ³.

Key Features

The Cummins 3936172 Breather Tube is designed with several features that enhance its performance and durability. These include a robust construction that can withstand the harsh conditions of commercial truck operation, precise engineering to ensure optimal pressure regulation, and materials that resist corrosion and wear. These features collectively contribute to the breather tube’s ability to perform reliably over time ².

Benefits of Using the 3936172 Breather Tube

Utilizing the Cummins 3936172 Breather Tube offers several advantages. It contributes to improved engine performance by ensuring that the engine operates within the desired pressure range. This can lead to more efficient combustion and reduced wear on engine components. Additionally, the breather tube’s design and construction enhance the engine’s longevity and reliability, making it a valuable component for commercial truck applications ³.

Installation Process

Installing the Cummins 3936172 Breather Tube requires careful attention to detail to ensure proper function. The process involves locating the correct position on the engine, securing the tube in place using the appropriate fasteners, and connecting it to the crankcase ventilation system. Tools such as wrenches and socket sets may be required, along with any additional components specified for the installation. Following the manufacturer’s guidelines ensures that the breather tube is installed correctly and functions as intended ¹.

Common Issues and Troubleshooting

Breather tubes, including the Cummins 3936172, may encounter issues such as blockages or leaks. These can be diagnosed through visual inspection and testing the system for proper pressure regulation. Troubleshooting steps may involve cleaning the tube, replacing damaged sections, or addressing any issues with the crankcase ventilation system. Regular maintenance and prompt attention to any signs of trouble can help prevent more significant problems ².

Maintenance Tips

To ensure the optimal performance and longevity of the Cummins 3936172 Breather Tube, regular maintenance is recommended. This includes periodic inspection for signs of wear, corrosion, or blockages. Cleaning the tube as needed and ensuring that all connections are secure can help maintain its function. Following these maintenance guidelines can contribute to the continued reliable operation of the engine ³.

Compatibility and Applications

The Cummins 3936172 Breather Tube is designed for specific engine types and truck models. It is important to verify compatibility to ensure proper fit and function. Application notes provided by the manufacturer can offer guidance on the suitable use of this breather tube in various commercial truck applications ¹.

Cummins Corporation Overview

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 customers in approximately 190 countries and territories. The company’s product range includes engines for on-highway, off-highway, and stationary applications, as well as related technologies that enhance performance and efficiency. Cummins’ dedication to excellence is reflected in its extensive portfolio and the trust it has earned in the automotive industry ².

Cummins Breather Tube 3936172 Compatibility

The Cummins Breather Tube part number 3936172 is designed to fit seamlessly with various Cummins engine models. This part is crucial for maintaining the integrity of the engine’s crankcase ventilation system by allowing the escape of gases that build up during normal engine operation.

Engine Compatibility

• 6C8.3: The 3936172 Breather Tube is specifically engineered to integrate with the 6C8.3 engine. This engine is known for its robust performance and reliability, often used in heavy-duty applications. The breather tube ensures that any excess pressure or gases are vented properly, preventing potential damage to the engine.
• Other Cummins Engines: While the primary focus is on the 6C8.3 engine, the 3936172 Breather Tube is also compatible with a range of other Cummins engines. This part is designed to fit within the broader family of Cummins engines, ensuring that it meets the necessary specifications for effective ventilation and pressure management.

Installation and Functionality

The installation of the 3936172 Breather Tube is straightforward and typically involves connecting it to the crankcase ventilation system. This ensures that any gases produced during engine operation are safely vented, maintaining the engine’s efficiency and longevity. The design of the breather tube allows for a secure fit, minimizing the risk of leaks or failures that could compromise engine performance ¹.

Role of Part 3936172 Breather Tube in Engine Systems

The part 3936172 Breather Tube is an essential component in maintaining the health and efficiency of engine systems by facilitating the proper ventilation of the crankcase. This tube allows for the release of pressure and the expulsion of contaminants that accumulate within the crankcase during engine operation.

Integration with the Crankcase

The breather tube is strategically connected to the crankcase, which houses the engine’s rotating assembly, including the crankshaft, connecting rods, and pistons. As the engine runs, it generates heat and pressure within the crankcase. The breather tube provides a pathway for these byproducts to escape, preventing a buildup that could lead to increased wear on engine components and reduced performance ³.

Function in the Ventilation System

In conjunction with the Positive Crankcase Ventilation (PCV) system, the breather tube plays a part in circulating crankcase gases back into the intake manifold. This process not only helps in maintaining a stable pressure within the crankcase but also ensures that any unburnt hydrocarbons are re-introduced into the combustion process, contributing to more efficient fuel consumption and reduced emissions ¹.

Maintenance of Engine Oil

The breather tube also assists in keeping the engine oil clean. As the engine operates, moisture and other contaminants can enter the crankcase. The breather tube allows these substances to be vented out, preventing them from mixing with the oil and causing sludge formation, which can impair the oil’s lubricating properties ².

Contribution to Engine Longevity

By ensuring that the crankcase remains at an optimal pressure and is free from contaminants, the breather tube indirectly contributes to the longevity of the engine. It helps in maintaining the integrity of the engine’s internal components, such as the piston rings and cylinder walls, by preventing excessive pressure and the accumulation of harmful substances ³.

Conclusion

In summary, the Cummins 3936172 Breather Tube is a vital element in the engine’s ventilation system, working in tandem with the crankcase to uphold engine performance, efficiency, and durability. Its role in pressure regulation, ventilation, and maintaining engine oil quality underscores its importance in the overall health and longevity of the engine.