4937099
Breather Tube
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$56.95 $67.77

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 4937099 Breather Hose is a component designed for use in heavy-duty trucks. It serves a specific function within the vehicle’s system, contributing to the efficient operation and longevity of the engine. Understanding its role and significance can help in maintaining optimal performance of the truck.

Basic Concepts of Breather Hoses

A breather hose is a component that allows air to enter and exit the engine’s crankcase. Its function is to maintain a balanced pressure within the crankcase, which is important for the proper operation of the engine. By allowing air to circulate, the breather hose helps to remove contaminants and moisture that can accumulate, thereby contributing to the overall performance and longevity of the engine 1.

Purpose of the 4937099 Breather Hose

The 4937099 Breather Hose plays a role in the crankcase ventilation system of a truck. It is designed to facilitate the removal of gases and vapors from the crankcase, which helps to maintain a stable pressure environment. This function is important for ensuring that the engine operates efficiently and that contaminants are effectively managed 2.

Key Features

This Cummins part is constructed with materials that offer durability and resistance to the harsh conditions found in heavy-duty truck environments. Its design includes features that enhance its performance, such as reinforced connections and a robust hose material that can withstand high temperatures and pressures.

Benefits of Using the 4937099 Breather Hose

Using the 4937099 Breather Hose can lead to several advantages. These include improved engine performance due to better crankcase ventilation, reduced emissions as a result of efficient gas and vapor removal, and enhanced durability that contributes to the longevity of the engine 3.

Installation Considerations

When installing the 4937099 Breather Hose, it is important to follow guidelines and best practices to ensure proper fit and function. Compatibility with various truck models should be considered, and any specific installation requirements should be adhered to for optimal performance.

Maintenance and Troubleshooting

Regular maintenance of the 4937099 Breather Hose is recommended to ensure it continues to function effectively. This includes checking for signs of wear or damage and addressing any issues promptly. Common problems may include blockages or leaks, which can be identified and resolved with proper troubleshooting techniques.

Environmental Impact

The 4937099 Breather Hose contributes to reducing emissions by ensuring efficient crankcase ventilation. This helps in promoting environmental sustainability in heavy-duty truck operations by minimizing the release of harmful gases and vapors into the atmosphere.

Cummins Overview

Cummins Inc. is a company with a history of innovation and quality in the automotive industry. It offers a wide range of products designed to meet the needs of various applications, with a commitment to advancing technology and sustainability in engine solutions.

Cummins Breather Hose Part 4937099 Compatibility

The Cummins breather hose part number 4937099 is designed to fit seamlessly within the engine systems of the 4B3.9 and 6B5.9 engines. This part is crucial for maintaining the integrity of the engine’s crankcase ventilation system, ensuring that harmful gases are expelled efficiently and preventing pressure build-up that could lead to engine damage.

For the 4B3.9 engine, the breather hose part 4937099 connects to the crankcase ventilation system, allowing for the proper expulsion of gases. This connection is vital for maintaining engine efficiency and longevity. Similarly, in the 6B5.9 engine, the breather hose part 4937099 plays an equally important role, ensuring that the crankcase ventilation system operates smoothly, thereby preventing potential issues such as oil leaks and engine overheating.

Both engines benefit from the precise fit and high-quality construction of the Cummins breather hose part 4937099, which is engineered to withstand the rigors of heavy-duty operation. This part is a critical component in the overall maintenance and performance of the 4B3.9 and 6B5.9 engines, ensuring that they run efficiently and reliably.

Role of Part 4937099 Breather Hose in Engine Systems

The part 4937099 Breather Hose is an essential component in maintaining the efficiency and reliability of engine systems. It is specifically designed to manage the ventilation of the crankcase, ensuring that the internal pressure remains balanced.

Interaction with the Cover

The breather hose connects to the engine cover, which encases the cylinder block and other internal components. The cover is designed with ventilation ports that allow the breather hose to expel gases and moisture that accumulate within the crankcase. This process prevents the buildup of pressure, which could otherwise lead to leaks or damage to the seal between the cover and the cylinder block.

Integration with the Cylinder Block

The cylinder block, the structural core of the engine, houses the cylinders, pistons, and other critical components. As the engine operates, it generates heat and byproducts such as moisture and gases. The breather hose plays a significant role in venting these byproducts from the crankcase, which is an area adjacent to the cylinder block. By maintaining a stable environment within the crankcase, the breather hose indirectly supports the optimal functioning of the cylinder block, ensuring that the engine components operate within their designed parameters.

Conclusion

In summary, the 4937099 Breather Hose is integral to the ventilation system of the engine, working in conjunction with the cover and cylinder block to maintain a balanced and efficient operating environment. Its role in managing crankcase ventilation is crucial for the overall performance and longevity of the engine, making it a vital component in heavy-duty truck maintenance.


  1. Reif, Konrad. Gasoline Engine Management Systems and Components. Springer Vieweg, 2015.

  2. Taghavifar, Hamid, and Aref Mardani. Offroad Vehicle Dynamics Analysis Modelling and Optimization. Springer, 2017.

  3. Han, Zhiyu. Simulation and Optimization of Internal Combustion Engines. SAE International, 2022.

* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.