4938867
Breather Tube
Cummins®

The Breather Tube Assembly 4938867, manufactured by Cummins, is a component designed for use in heavy-duty trucks. It plays a role in maintaining the operational integrity of the engine by managing pressure and preventing contamination within the crankcase. Cummins, a well-established name in the automotive industry, ensures that this assembly meets the rigorous demands of heavy-duty applications ¹.

Function and Operation

This Cummins part operates by allowing air to enter and exit the crankcase, thereby maintaining pressure equilibrium. This function is vital for the proper lubrication and cooling of engine components. By venting excess pressure and allowing fresh air to enter, the assembly helps to prevent the buildup of contaminants such as moisture and sludge, which can adversely affect engine performance ².

Key Features

The Breather Tube Assembly 4938867 is constructed using high-quality materials that ensure durability and reliable performance. Its design incorporates features that enhance its ability to withstand the harsh conditions typical of heavy-duty truck environments. The assembly is engineered to provide a secure fit and efficient operation, contributing to the overall reliability of the engine system ³.

Benefits

The use of the Breather Tube Assembly 4938867 offers several advantages. It contributes to improved engine performance by ensuring optimal pressure levels within the crankcase. Additionally, it reduces the frequency of maintenance interventions by minimizing the accumulation of contaminants. The assembly also plays a role in enhancing the longevity of engine components by maintaining a clean and well-lubricated environment ⁴.

Installation and Compatibility

Proper installation of the Breather Tube Assembly 4938867 is crucial for its effective operation. It is important to follow manufacturer guidelines to ensure a secure and correct fit. Compatibility with specific truck models and engine types should be verified to ensure optimal performance and integration within the engine system.

Maintenance and Troubleshooting

Routine maintenance of the Breather Tube Assembly 4938867 is recommended to ensure its continued efficient operation. This may include periodic inspections for signs of wear or damage, and cleaning as necessary. Common issues such as blockages or leaks can often be resolved through straightforward troubleshooting steps, ensuring minimal disruption to vehicle operation.

Safety Considerations

When working with the Breather Tube Assembly 4938867, it is important to adhere to safety guidelines. This includes ensuring that the engine is cool before beginning any maintenance or installation procedures. Proper handling and secure fitting of the assembly are also critical to prevent operational issues and ensure the safety of the technician.

Environmental Impact

The environmental implications of the Breather Tube Assembly 4938867, like any automotive component, include considerations around its production, use, and disposal. Cummins is committed to minimizing the ecological footprint of its products through sustainable manufacturing practices and the use of recyclable materials where possible.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history spanning over a century, Cummins is recognized for its innovation, quality, and commitment to customer satisfaction. The company’s product portfolio includes engines, filtration, emissions solutions, and related technologies, all designed to meet the demanding requirements of various industries, including heavy-duty trucking.

Breather Tube Assembly 4938867 Compatibility with Cummins Engines

The Breather Tube Assembly part number 4938867, manufactured by Cummins, is designed to fit seamlessly with several of their engine models. This part is crucial for maintaining the integrity of the engine’s crankcase ventilation system, ensuring that harmful gases are expelled efficiently and preventing oil contamination.

C GAS PLUS CM556 and L GAS PLUS CM556

The Breather Tube Assembly 4938867 is compatible with the C GAS PLUS CM556 and L GAS PLUS CM556 engines. These engines are part of Cummins’ range of gas-powered engines, known for their reliability and efficiency. The breather tube assembly ensures that the crankcase ventilation system operates smoothly, which is essential for the longevity and performance of these engines.

C8.3 G and L8.9 G CMOH2.0 L125B

The part also fits the C8.3 G and L8.9 G CMOH2.0 L125B engines. These engines are part of Cummins’ diesel engine lineup, recognized for their robust construction and high power output. The breather tube assembly is integral to these engines, as it helps manage the pressure within the crankcase, preventing oil leaks and ensuring that the engine runs efficiently.

By ensuring that the crankcase ventilation system is properly maintained, the Breather Tube Assembly 4938867 contributes to the overall health and performance of these engines.

Role of Part 4938867 Breather Tube Assembly in Engine Systems

The 4938867 Breather Tube Assembly is an integral component in the efficient operation of engine systems, particularly in managing the crankcase ventilation. This assembly is designed to interface with the crankcase breather system, allowing for the controlled release of gases that accumulate within the crankcase during engine operation.

Interaction with the Crankcase

The crankcase is a vital part of the engine, housing the crankshaft and connecting rods. As the engine runs, it generates heat and pressure, leading to the formation of gases and vapors within the crankcase. The 4938867 Breather Tube Assembly plays a key role in venting these gases, preventing pressure build-up that could lead to oil leaks or engine damage.

Connection to the Plumbing System

The breather tube assembly is part of the engine’s plumbing system, which includes various hoses and tubes designed to manage fluid and gas flow. It connects to the crankcase and routes the expelled gases to a safe location, often back into the intake system where they can be re-burned. This not only helps in maintaining crankcase pressure but also contributes to reducing emissions.

Integration with the Crankcase Breather

The crankcase breather is a component that works in tandem with the breather tube assembly. It allows for the release of gases from the crankcase while preventing external contaminants from entering. The 4938867 Breather Tube Assembly enhances this function by providing a dedicated pathway for the gases, ensuring they are efficiently managed and redirected as needed.

Conclusion

In summary, the 4938867 Breather Tube Assembly is a well-engineered component that ensures the smooth operation of the crankcase ventilation system. Its proper installation and maintenance are essential for the longevity and performance of the engine.