3683917
BREATHER,CRANKCASE
Cummins®

Introduction

The Cummins BREATHER, CRANKCASE (Part #3683917) is a vital component in the ventilation system of commercial truck engines. It facilitates the release of gases and contaminants from the crankcase, contributing to the engine’s operational efficiency and longevity ¹.

Basic Concepts of Crankcase Breathers

A crankcase breather, such as the BREATHER, CRANKCASE, is essential for maintaining a balanced pressure within the engine’s crankcase. It allows the escape of gases and contaminants, which are byproducts of the combustion process, thereby reducing wear on internal components and preserving the efficiency of the lubrication system ².

Operation of the Breather, Crankcase

This Cummins part operates by allowing the flow of gases and contaminants from the crankcase to the outside environment. This process is crucial for maintaining optimal pressure within the crankcase and ensuring the quality of the engine oil by preventing contamination ³.

Purpose and Role in Truck Operation

In commercial trucks, the BREATHER, CRANKCASE is integral to engine lubrication and ventilation. It ensures that the engine’s moving parts are adequately lubricated by maintaining a clean and stable environment within the crankcase, which is particularly important in heavy-duty applications ⁴.

Key Features

The BREATHER, CRANKCASE is characterized by its robust design and high-quality materials. It features an efficient filtration system to capture contaminants and a durable construction for long-term reliability.

Benefits of Using Cummins Breather, Crankcase

Using this part offers benefits such as improved engine performance and longevity. It contributes to the overall reliability of the engine by ensuring efficient ventilation and maintaining the quality of the engine oil. Additionally, its design aids in reducing emissions by capturing contaminants.

Installation Considerations

Proper installation of the BREATHER, CRANKCASE is crucial for its effective operation. It is designed to be compatible with various engine types and configurations. Ensuring secure fitting and proper sealing of connections is important to prevent leaks and ensure efficient ventilation.

Maintenance and Troubleshooting

Routine maintenance of the BREATHER, CRANKCASE includes checking for wear or damage and ensuring it remains free of obstructions. Common issues like clogging of the filtration system or leaks can be addressed through regular inspections and servicing. Adhering to recommended service intervals is important for maintaining the breather’s efficiency and the engine’s overall health.

Cummins: A Brief Overview

Cummins Inc. is renowned in the commercial truck industry for its range of engine and powertrain solutions. The company is known for producing reliable and efficient components that meet the demanding requirements of commercial transportation.

Engine Compatibility for Part 3683917

The BREATHER, CRANKCASE part number 3683917 is compatible with various Cummins engines, including:

• ISB Series: ISB CM2150, ISB6.7 CM2250, ISB6.7 CM2350 B101
• ISM Series: ISM CM570/870, ISM CM876, ISM11 CM876 SN
• ISX Series: ISX CM871
• QSM Series: QSM11 CM876

Role of Part 3683917 BREATHER,CRANKCASE in Engine Systems

This part is integral to the crankcase breather system, which is crucial for maintaining the engine’s efficiency and longevity.

Integration with Crankcase Breather

The crankcase breather system, including the 3683917 BREATHER,CRANKCASE, is designed to release pressure that builds up inside the crankcase. This prevents excessive pressure that could lead to leaks or damage to seals and gaskets.

Function within Crankcase Breather Arrangement

In conjunction with components like the PCV (Positive Crankcase Ventilation) valve, the 3683917 BREATHER,CRANKCASE directs expelled gases towards the intake manifold for re-combustion. This setup is vital for maintaining balanced pressure within the engine, enhancing its performance and reliability.

Conclusion

The 3683917 BREATHER,CRANKCASE is a key element in the crankcase breather system, ensuring stable internal pressure within the engine. Its role in maintaining engine efficiency and longevity is significant, making it an essential component for commercial truck engines.