4936347
Breather Cover
Cummins®

Introduction to Breather Covers

Breather covers, also known as crankcase breathers, are essential components in the engine systems of commercial trucks. They allow the engine to breathe by venting out gases and vapors that accumulate within the crankcase. This process is crucial for maintaining engine efficiency and preventing damage from pressure build-up ¹.

The Role of Cummins 4936347 Breather Cover

The Cummins 4936347 Breather Cover is specifically designed for use in heavy-duty engines. This part plays a critical role in the engine’s operation by ensuring that the crankcase can release gases and vapors safely and efficiently. By doing so, it helps maintain the correct pressure levels within the engine, which is vital for optimal performance and longevity ².

How the Cummins 4936347 Breather Cover Works

The Cummins 4936347 Breather Cover operates through a simple yet effective mechanism. It is typically located on the engine’s valve cover and is connected to the crankcase ventilation system. The cover contains a one-way valve that allows gases to escape from the crankcase while preventing outside air and contaminants from entering. This ensures that the engine operates smoothly and efficiently ³.

Importance of the Cummins 4936347 Breather Cover in Truck Operations

For engineers, mechanics, truck drivers, and fleet operators, the proper functioning of the Cummins 4936347 Breather Cover is essential. A malfunctioning breather cover can lead to several issues, including:

• Pressure Build-Up: Excessive pressure can cause leaks and damage to engine components.
• Contamination: If the cover fails, contaminants can enter the crankcase, leading to engine wear and reduced performance.
• Oil Leaks: A compromised breather cover can result in oil leaks, which can be hazardous and costly to repair.

Troubleshooting the Cummins 4936347 Breather Cover

Regular maintenance and timely troubleshooting can prevent many issues associated with the Cummins 4936347 Breather Cover. Here are some steps to follow:

1. Visual Inspection: Check the cover for any signs of damage, such as cracks or holes. Ensure that the gasket is intact and properly seated.
2. Functional Test: Verify that the one-way valve is working correctly. This can be done by applying gentle pressure to the cover and observing if it returns to its original position.
3. Cleaning: Remove any dirt or debris that may have accumulated on the cover. This can be done using a soft brush or compressed air.
4. Replacement: If the cover is damaged or not functioning properly, it should be replaced immediately to avoid further engine issues.

Maintenance Tips for the Cummins 4936347 Breather Cover

To ensure the longevity and efficiency of the Cummins 4936347 Breather Cover, consider the following maintenance tips:

• Regular Checks: Incorporate visual inspections of the breather cover into your routine maintenance schedule.
• Proper Storage: When not in use, store the truck in a clean, dry environment to prevent moisture and contaminants from affecting the cover.
• Professional Servicing: Have a qualified mechanic inspect and service the breather cover during regular engine maintenance.

About Cummins

Cummins is a global leader in the design, manufacture, and distribution of engines, engine components, and related technologies. Known for its high-quality and reliable products, Cummins serves a wide range of industries, including commercial trucking, agriculture, and power generation. Their commitment to innovation and excellence makes them a trusted name in the industry.

Conclusion

Understanding the importance and functionality of the Cummins 4936347 Breather Cover is crucial for maintaining the health and efficiency of commercial truck engines. By following proper maintenance and troubleshooting procedures, engineers, mechanics, truck drivers, and fleet operators can ensure that their vehicles perform at their best.