3928772
BREATHER,CRANKCASE
Cummins®

The BREATHER,CRANKCASE (Part #3928772) manufactured by Cummins is a component designed to maintain the integrity of the engine’s crankcase by managing pressure and removing contaminants ³.

Basic Concepts of Crankcase Breathers

Crankcase breathers allow for the release of gases and vapors that accumulate within the crankcase of an engine. These breathers provide a controlled path for these byproducts to escape, which helps in maintaining proper pressure within the crankcase. This is important for the efficient operation of the engine, as improper pressure can lead to a variety of issues including oil leaks and reduced engine performance ².

Purpose and Function of the BREATHER,CRANKCASE

The BREATHER,CRANKCASE serves to remove contaminants and moisture that may accumulate within the crankcase of a truck’s engine. By facilitating the escape of these substances, it helps in preserving the cleanliness of the engine oil and the overall efficiency of the engine. This component contributes to the longevity of the engine by preventing the buildup of sludge and other deposits that can impair engine function ³.

Key Features of Part #3928772

The Cummins BREATHER,CRANKCASE is constructed with materials chosen for their durability and resistance to the harsh conditions within an engine compartment. Its design incorporates features that enhance its ability to effectively vent the crankcase while preventing the ingress of contaminants. The specific materials and unique design elements contribute to the performance and longevity of the part ¹.

Benefits of Using the Cummins BREATHER,CRANKCASE

Installing the Cummins BREATHER,CRANKCASE in commercial trucks can lead to improved engine performance and reliability. It reduces the frequency of maintenance required and can contribute to lower operational costs over time. The efficient venting of the crankcase helps in maintaining optimal engine conditions, which can extend the service life of the engine and its components ³.

Installation and Compatibility

Proper installation of the BREATHER,CRANKCASE is important for its effective operation. It is designed to be compatible with various Cummins engine models and can also be suitable for other commercial truck makes, depending on the specific engine configuration and requirements ¹.

Troubleshooting and Maintenance

Common issues with crankcase breathers may include blockages or damage to the breather element, which can manifest as increased pressure within the crankcase or contamination of the engine oil. Regular maintenance practices, such as inspection and cleaning, can help ensure the longevity and efficiency of the BREATHER,CRANKCASE. A step-by-step troubleshooting guide can assist in diagnosing and addressing any problems that may arise ³.

Regulatory and Environmental Considerations

The BREATHER,CRANKCASE contributes to meeting emissions standards and regulatory requirements by ensuring that the engine operates within specified parameters. An efficient crankcase breather system can also provide environmental benefits by reducing the release of harmful vapors into the atmosphere ².

Cummins: A Brief Overview

Cummins Inc. is a leader in the commercial truck industry, known for its history of innovation and quality in engine components. The company’s commitment to advancing engine technology is evident in its range of products, including the BREATHER,CRANKCASE, which is designed to enhance the performance and reliability of commercial truck engines ¹.

Compatibility of Part #3928772

The Cummins BREATHER,CRANKCASE part number 3928772 is designed to fit seamlessly with several engine models. This part is engineered to ensure optimal engine performance by managing the crankcase ventilation system.

6C8.3 Engines

The 6C8.3 engine series benefits significantly from the BREATHER,CRANKCASE part 3928772. This part is integral in maintaining the pressure balance within the crankcase, preventing oil contamination and ensuring the longevity of the engine. The design of the 6C8.3 engine allows for a straightforward installation of this breather component, ensuring that it integrates smoothly with the existing ventilation system ¹.

Grouping of Compatible Engines

While the primary focus here is on the 6C8.3 engines, it is important to note that the BREATHER,CRANKCASE part 3928772 is also compatible with other Cummins engine models that share similar design and ventilation requirements. This part is engineered to fit within the broader Cummins engine family, ensuring that it can be used across multiple models with ease ¹.

Role of Part #3928772 in Engine Systems

In engine systems, the BREATHER,CRANKCASE is integral to maintaining the health and efficiency of several key components. This breather is designed to manage the pressure within the crankcase, ensuring that it remains balanced and does not exceed safe limits.

Interaction with the Crankcase

The crankcase is a vital part of the engine, housing the crankshaft and connecting rods. As the engine operates, it generates gases and vapors that need to be expelled to prevent pressure build-up. The BREATHER,CRANKCASE allows these gases to escape, thus maintaining optimal pressure levels within the crankcase. This helps in reducing wear and tear on the crankshaft and other internal components ³.

Coordination with Valve Cover Breather Kit

When integrated with a Valve Cover Breather Kit, the BREATHER,CRANKCASE enhances the system’s ability to vent gases effectively. The valve cover breather kit typically includes passages and vents that connect to the crankcase breather. This setup ensures that any gases or vapors produced during engine operation are efficiently routed out of the engine, preventing contamination of the oil and maintaining clean lubrication ².

Integration with Valve Cover Kit

In conjunction with a Valve Cover Kit, the BREATHER,CRANKCASE plays a role in the overall ventilation strategy of the engine. The valve cover itself often has provisions for breather hoses or tubes that connect to the crankcase breather. This integrated approach ensures that the engine’s ventilation system is comprehensive, addressing both the crankcase and the valve cover areas ³.

Conclusion

By effectively managing the pressure and venting gases, the BREATHER,CRANKCASE contributes to the longevity and performance of the engine, ensuring that all interconnected components function smoothly and efficiently ³.