3626766
BREATHER,CRANKCASE
Cummins®

The BREATHER,CRANKCASE (Part #3626766) manufactured by Cummins is a component designed for heavy-duty truck engines. It plays a role in maintaining proper ventilation within the crankcase, which is vital for the engine’s overall performance and longevity ¹.

Basic Concepts of Crankcase Breathers

Crankcase breathers are designed to vent vapors from the crankcase and prevent pressure build-up. This process is fundamental to maintaining engine lubrication and performance ². By allowing fresh air to enter the crankcase and expelling contaminated air, breathers help keep the engine’s internal environment clean and balanced.

Function and Operation

This Cummins part operates by managing the airflow within the engine system. It allows air to flow into the crankcase while filtering out contaminants, thus maintaining a clean and pressurized environment. This process is crucial for the efficient operation of the engine, as it ensures that the crankcase remains free of excess pressure and contaminants that could affect lubrication and performance ³.

Key Features

The BREATHER,CRANKCASE (Part #3626766) is characterized by its robust design and the materials used in its construction. These features contribute to its performance and durability. The component is engineered to withstand the demanding conditions of heavy-duty truck engines, ensuring reliable operation over time.

Benefits of Proper Crankcase Ventilation

Effective crankcase ventilation, facilitated by the breather, offers several advantages. It helps reduce oil contamination, improves engine efficiency, and extends the lifespan of engine components. Proper ventilation ensures that the crankcase environment remains optimal for engine operation, contributing to overall engine health and performance.

Troubleshooting and Maintenance

Identifying common issues with crankcase breathers, such as blockages or leaks, is important for maintaining engine performance. Routine maintenance practices, including regular inspection and cleaning of the breather, can help ensure its optimal performance and longevity. These practices contribute to the efficient operation of the engine and help prevent potential issues related to crankcase ventilation.

Installation Considerations

When installing or replacing the BREATHER,CRANKCASE (Part #3626766), it is important to consider factors such as proper alignment, sealing, and compatibility with the engine system. Ensuring these aspects are addressed during installation helps maintain the integrity of the crankcase ventilation system and supports the efficient operation of the engine.

Cummins: A Brief Overview

Cummins Inc. is a renowned manufacturer in the automotive industry, known for its high-quality engine components. The company’s commitment to excellence is evident in its products, including the BREATHER,CRANKCASE (Part #3626766). Cummins’ reputation for manufacturing reliable and durable engine parts underscores its position as a leader in the industry.

Compatibility of Cummins Part 3626766

This Cummins part is designed to fit seamlessly with several engine models. It is crucial for maintaining the integrity of the crankcase by allowing ventilation and preventing pressure build-up.

K38 and K50 Engines

The BREATHER,CRANKCASE part 3626766 is compatible with the K38 and K50 engines. These engines are known for their robust design and efficiency, making them suitable for various heavy-duty applications. The breather ensures that the crankcase remains properly ventilated, which is essential for the longevity and performance of these engines.

QSK38 CM2150 MCRS and QSK38 CM850 MCRS Engines

The QSK38 CM2150 MCRS and QSK38 CM850 MCRS engines also benefit from the use of the Cummins part 3626766. These engines are part of the QSK series, which is renowned for its reliability and power. The breather plays a vital role in these engines by managing the crankcase ventilation, ensuring that the internal pressures are kept in check. This compatibility is crucial for maintaining the operational efficiency and durability of the QSK38 series engines.

By ensuring that the BREATHER,CRANKCASE part 3626766 is correctly installed in these engines, users can maintain optimal engine performance and prevent potential issues related to crankcase pressure and ventilation.

Role of Part 3626766 BREATHER,CRANKCASE in Engine Systems

This part is an essential component in maintaining the health and efficiency of various engine systems. Its primary function is to manage the pressure within the crankcase by allowing gases to escape, thus preventing the buildup of harmful contaminants and ensuring smooth engine operation.

Integration with Key Components

1. Crankcase and Crankcase Breather:

   • The breather is directly connected to the crankcase, facilitating the release of gases produced during combustion. This helps in maintaining optimal pressure levels within the crankcase, which is vital for the proper functioning of the pistons and other moving parts.

2. Right Bank Breather:

   • In engines with a right bank configuration, the breather plays a significant role in balancing the pressure between the left and right sides of the crankcase. This ensures symmetrical operation and reduces the risk of mechanical stress on the engine components.

3. Dipstick and Oil Fill:

   • The breather is often located near the dipstick and oil fill cap. This proximity allows for efficient ventilation of the crankcase, which is particularly important during oil changes or when checking the oil level. Proper ventilation prevents oil contamination and ensures accurate oil level readings.

4. Fill & Breather and Fill and Breather Crank:

   • These components are designed to allow for simultaneous oil filling and crankcase ventilation. The breather ensures that any excess pressure is relieved during the oil filling process, preventing oil spillage and maintaining a clean engine environment.

5. Hand Hole Cover and Mounting Breather:

   • The hand hole cover provides access to the internal components of the engine for maintenance purposes. The mounting breather, attached to this cover, ensures that the crankcase remains ventilated even when the cover is in place, facilitating easier and safer maintenance procedures.

6. Arrangement:

   • The strategic arrangement of the breather in relation to other components like the oil fill and dipstick enhances the overall efficiency of the engine. This thoughtful design ensures that the crankcase remains well-ventilated under all operating conditions, contributing to the longevity and performance of the engine.

Conclusion

In summary, the BREATHER,CRANKCASE (Part #3626766) is a vital component that works in harmony with various engine systems to maintain optimal pressure and cleanliness within the crankcase, thereby ensuring the engine operates smoothly and efficiently.