3958460
Breather Tube
Cummins®

The Breather Tube part 3958460 by Cummins is a component designed for commercial trucks, specifically for the ISB CM850, QSB5.9 CM850, and QSB6.7 CM850 (CM2850) engines. Manufactured by Cummins, a reputable name in the automotive industry, this part is engineered to ensure proper ventilation and pressure balance within the engine’s crankcase, preventing the buildup of harmful gases and moisture that could otherwise lead to engine damage ¹.

Basic Concepts and Functionality

A breather tube is a component that allows air to enter and exit an engine’s crankcase. This process helps maintain a balanced pressure within the crankcase, which is essential for the proper functioning of the engine ². The breather tube operates by venting excess pressure and moisture that accumulate during engine operation. This action prevents the buildup of contaminants and ensures that the engine’s internal components are not subjected to undue stress.

Purpose of Breather Tube 3958460

The 3958460 breather tube plays a specific role in the operation of a truck by facilitating the venting of pressure and moisture from the engine’s crankcase. This function is vital for maintaining the engine’s efficiency and longevity. The breather tube interacts with other engine components by ensuring that the crankcase remains at an optimal pressure, which in turn supports the smooth operation of the engine ³.

Key Features

The 3958460 breather tube is constructed from durable materials that are resistant to the high temperatures and pressures found within an engine’s crankcase. Its design includes features that enhance its performance, such as a robust connection to the crankcase and a filtration system that prevents contaminants from entering the engine. These attributes contribute to the breather tube’s effectiveness in maintaining engine health.

Benefits

The advantages provided by the 3958460 breather tube include improved engine performance, increased longevity, and enhanced reliability. By ensuring that the crankcase maintains an optimal pressure, the breather tube helps to reduce wear on engine components. This results in a more efficient engine operation and a longer service life for the engine.

Troubleshooting and Maintenance

Common issues associated with breather tubes include blockages and leaks. These problems can be identified through regular inspections and maintenance checks. To ensure optimal performance and longevity of the 3958460 breather tube, it is recommended to follow a maintenance schedule that includes checking for signs of wear, ensuring proper connections, and replacing the breather tube if any damage is detected.

About Cummins

Cummins is a manufacturer with a long-standing reputation in the automotive industry. The company is known for its commitment to quality and innovation in automotive components. Cummins’ history is marked by a dedication to producing reliable and high-performance parts, which has earned it a respected position in the industry. The 3958460 breather tube is a testament to Cummins’ ongoing efforts to provide quality components that meet the demanding requirements of commercial truck engines.

Conclusion

In summary, the Breather Tube part 3958460 is a vital component in the crankcase ventilation system, contributing to the stable operation of the engine by managing pressure, facilitating the recirculation of vapors, and protecting the engine from contaminants. Its design and fit are critical to maintaining the health of the engine and preventing potential issues that could arise from improper ventilation.