4948562
Breather Baffle
Cummins®

Introduction

The Cummins 4948562 Breather Baffle is a component designed to enhance the operation of heavy-duty trucks by managing the ventilation of the engine’s crankcase. This part ensures that the engine operates efficiently by maintaining optimal conditions within the crankcase, which is vital for the overall performance and longevity of the engine ¹.

Basic Concepts of Breather Baffles

A breather baffle is a device used in the engine system to regulate the flow of air within the crankcase. Its primary function is to allow the escape of gases and vapors produced during engine operation while preventing the ingress of contaminants. This is achieved through a series of chambers and passages that direct the flow of air and trap impurities, ensuring that the crankcase remains clean and the engine operates smoothly ².

Purpose of the 4948562 Breather Baffle

The Cummins 4948562 Breather Baffle plays a specific role in the truck’s engine system by managing crankcase ventilation. It helps in removing blow-by gases, which are a mixture of air, fuel, and combustion byproducts that escape past the piston rings into the crankcase. By effectively venting these gases, the baffle helps maintain a clean oil environment, which is crucial for lubricating moving parts and ensuring engine reliability ³.

Key Features

The 4948562 Breather Baffle is designed with several key features that enhance its performance. It is constructed from durable materials to withstand the harsh conditions within the engine compartment. The baffle includes a multi-chamber design that allows for efficient separation of contaminants from the airflow. Additionally, it is engineered to fit seamlessly into the engine system, ensuring easy installation and integration.

Benefits of Using the 4948562 Breather Baffle

Incorporating the 4948562 Breather Baffle into a truck’s engine system offers several advantages. It contributes to improved engine performance by ensuring that the crankcase remains free of contaminants, which can otherwise lead to increased wear on engine components. The baffle also helps extend the life of the engine oil by keeping it clean, reducing the frequency of oil changes and maintenance costs. Furthermore, it enhances the overall reliability of the engine system by maintaining optimal operating conditions.

Installation Process

Installing the 4948562 Breather Baffle requires careful attention to detail to ensure optimal performance. Begin by ensuring the engine is cool and the oil has been drained to prevent spills. Locate the breather port on the engine and remove the old baffle if present. Clean the area thoroughly to remove any debris. Position the new baffle into the breather port, ensuring it is seated correctly. Secure it in place according to the manufacturer’s instructions, using the appropriate tools. Finally, refill the engine with the recommended grade of oil and check for any leaks before starting the engine.

Maintenance and Troubleshooting

Regular maintenance of the 4948562 Breather Baffle is important to ensure its continued effective operation. Inspect the baffle during routine oil changes for signs of wear or damage. Clean the baffle as necessary to remove any accumulated contaminants. Common issues may include reduced airflow or oil leaks, which can often be addressed by cleaning or replacing the baffle. If problems persist, consult the manufacturer’s guidelines or a professional technician for further assistance.

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 spanning over a century, Cummins has established a strong reputation for quality, reliability, and innovation in the heavy-duty truck industry. The company’s extensive product range includes engines for on-highway and off-highway applications, as well as components and systems that enhance engine performance and efficiency.

Cummins Engine Breather Baffle Part 4948562 Compatibility

The Cummins Breather Baffle part number 4948562 is designed to fit a variety of Cummins engines, ensuring proper air flow and pressure management within the engine’s crankcase. This part is crucial for maintaining engine efficiency and longevity by preventing contaminants and excess pressure from entering the crankcase.

Compatible Engines

• B6.7 CM2670 B153B
• ISB CM2150
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISBE CM2150
• ISBE CM800
• ISBE4 CM850
• QSB4.5 CM850 (CM2850)
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

Grouping of Compatible Engines

The breather baffle part 4948562 is compatible with several engine models across different Cummins engine families. Here is a breakdown of the groupings:

• ISB Series:

  • ISB CM2150
  • ISB/ISD4.5 CM2150 B119
  • ISB/ISD6.7 CM2150 SN
  • ISB6.7 CM2250
  • ISB6.7 CM2350 B101

• ISBE Series:

  • ISBE CM2150
  • ISBE CM800
  • ISBE4 CM850

• QSB Series:

  • QSB4.5 CM850 (CM2850)
  • QSB6.7 CM850 (CM2850)
  • QSB7 CM2880 B117

• Other Models:

  • B6.7 CM2670 B153B

This compatibility ensures that the breather baffle can be used across a wide range of Cummins engines, providing a standardized solution for crankcase breather management.

Role of Part 4948562 Breather Baffle in Engine Systems

The part 4948562 Breather Baffle is an essential component in maintaining the efficiency and reliability of engine systems. It is specifically designed to work in conjunction with the valve cover and valve cover arrangement to manage the ventilation and pressure within the engine.

Integration with Valve Cover

When installed, the Breather Baffle interfaces directly with the valve cover. Its primary function is to regulate the airflow within the valve cover, ensuring that any excess pressure is safely vented. This helps in maintaining a stable environment inside the valve cover, which is vital for the proper operation of the valves and other components housed within.

Function within Valve Cover Arrangement

In a valve cover arrangement, the Breather Baffle plays a significant role in the overall ventilation system of the engine. It helps in directing the flow of air and gases, preventing the buildup of pressure that could lead to leaks or damage to the valve cover seals. By doing so, it contributes to the longevity and performance of the engine components.

The Breather Baffle also aids in the separation of oil mist and vapors from the air, which is particularly important in high-performance engines where the valve cover arrangement is subjected to greater stresses and higher temperatures. This separation ensures that the air entering the combustion chamber is clean, which is beneficial for combustion efficiency and emissions control.

Conclusion

In summary, the Cummins 4948562 Breather Baffle is a key component in the valve cover and valve cover arrangement, providing essential ventilation and pressure management that supports the overall health and performance of the engine system. Regular maintenance and proper installation are crucial to ensure the continued effectiveness of this part.