4967261
BREATHER,CRANKCASE
Cummins®

The Cummins 4967261 Crankcase Breather is a component designed for use in commercial trucks. It serves to manage the ventilation of the engine’s crankcase, ensuring that pressure and contaminants are effectively controlled. This breather plays a role in maintaining the engine’s operational efficiency and longevity ¹.

Basic Concepts of Crankcase Breathers

A crankcase breather is a device that allows for the release of gases that accumulate within the engine’s crankcase. As the engine operates, it produces gases that must be vented to prevent pressure buildup, which could lead to leaks or damage. Proper ventilation is maintained to ensure the engine operates within safe parameters and to protect internal components from contamination ².

Purpose and Function of the Cummins 4967261 Crankcase Breather

The Cummins 4967261 Crankcase Breather is engineered to regulate the pressure within the crankcase by allowing gases to escape while preventing the ingress of outside air and contaminants. It helps in maintaining a clean environment within the crankcase, which is vital for the lubrication system’s effectiveness and the overall health of the engine ³.

Key Features

This Cummins part is constructed with materials that offer durability and resistance to the harsh conditions within an engine compartment. It incorporates filtration capabilities to trap particles and prevent them from entering the crankcase. Unique attributes of this breather may include a design that enhances its ability to manage pressure differentials and its compatibility with specific engine configurations.

Benefits of Using the Cummins 4967261 Crankcase Breather

Utilizing this part can lead to improved engine performance due to better crankcase ventilation. It contributes to extended component lifespan by reducing the risk of contamination and wear. Additionally, it enhances the reliability of the engine by ensuring that the crankcase operates under optimal conditions.

Installation and Compatibility

Proper installation of this part involves following manufacturer guidelines to ensure it is securely fitted and functions as intended. It is designed to be compatible with specific Cummins engine models, and it is important to verify that it matches the engine configuration for which it is intended.

Maintenance and Troubleshooting

Routine maintenance of this part includes checking for any signs of wear or damage and ensuring that the filtration system is clean and functioning correctly. Common issues may involve blockages or leaks, which can be addressed by cleaning or replacing the breather as necessary.

Environmental and Safety Considerations

Proper crankcase ventilation is important for reducing emissions and ensuring that harmful gases are not released into the environment. Safety measures during installation and maintenance of the breather include following proper procedures to avoid injury and ensuring that the engine is not operating during these tasks.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and related technologies. With a history of innovation and a commitment to quality, Cummins serves customers in approximately 190 countries and territories, providing reliable products for various industries, including commercial trucking.

Compatibility with Cummins Engines

This part, manufactured by Cummins, is designed to fit seamlessly within a variety of Cummins engine models. This component plays a role in the engine’s ventilation system, ensuring that the crankcase is properly ventilated to prevent the buildup of harmful gases and maintain optimal engine performance.

QSK60 Engine

The QSK60 engine, known for its robust design and high power output, integrates this part as a component. This part ensures that the crankcase is adequately ventilated, which is important for the longevity and efficiency of the engine.

CM850 Engine

The CM850 engine, a high-performance model, also utilizes this part. This part is integral to the engine’s ventilation system, helping to maintain the integrity of the crankcase by allowing the escape of gases and preventing pressure build-up.

MCRS Engine

The MCRS engine, recognized for its reliability and durability, incorporates this part to ensure proper ventilation of the crankcase. This component is important for maintaining the engine’s operational efficiency and preventing potential damage from gas buildup.

Grouping of Engines

This part is compatible with the QSK60, CM850, and MCRS engines, highlighting its versatility and importance across different engine models. Cummins has designed this part to meet the specific ventilation needs of these engines, ensuring that they operate smoothly and efficiently.

Understanding the Role of Part 4967261 BREATHER,CRANKCASE in Engine Systems

In the intricate arrangement of engine systems, this part serves a function by ensuring the efficient operation of the crankcase breather system. This component is designed to manage the pressure within the crankcase, a vital aspect of maintaining engine performance and longevity.

Integration with the Crankcase Breather System

The crankcase breather system is responsible for venting gases that accumulate within the crankcase. These gases, which include unburned fuel, combustion byproducts, and moisture, are expelled to prevent pressure build-up that could lead to oil leaks, reduced engine efficiency, and potential damage to engine components.

4967261 fits into this system by providing a regulated pathway for these gases to escape. It is typically connected to the crankcase and routed to a location where the expelled gases can be safely released or recirculated back into the intake system. This ensures that the crankcase maintains a stable pressure, which is important for the proper functioning of the engine’s internal components.

Interaction with Other Engine Components

The efficient operation of 4967261 is intertwined with several other engine components:

• Pistons and Connecting Rods: By maintaining optimal crankcase pressure, this breather component helps in reducing the stress on pistons and connecting rods, thereby enhancing their durability and performance.

• Oil System: Proper ventilation of the crankcase prevents the formation of foam in the engine oil, which can impair lubrication and lead to increased wear on moving parts.

• Intake System: In many engine designs, the breather system is connected to the intake manifold, allowing the vented gases to be drawn back into the combustion process. This not only helps in reducing emissions but also slightly improves fuel efficiency.

• PCV (Positive Crankcase Ventilation) Valve: In systems equipped with a PCV valve, 4967261 works in conjunction with this valve to regulate the flow of crankcase gases, ensuring they are metered correctly into the intake system.

Importance in Engine Maintenance

Regular inspection and maintenance of 4967261 are essential. Over time, this component can become clogged with sludge or debris, impeding its function. A malfunctioning breather can lead to increased crankcase pressure, resulting in oil leaks, contaminated air filters, and reduced engine performance. Therefore, ensuring the breather remains clean and operational is a key aspect of routine engine maintenance.

Conclusion

In summary, 4967261 plays a role in the crankcase breather system, contributing to the overall efficiency and reliability of engine operations. Its proper function is integral to the health of various engine components and the maintenance of optimal engine performance.