6435628
Crankcase Breather Heater
Cummins®

The Crankcase Breather Heater 6435628, manufactured by Cummins, is designed to enhance the functionality of the crankcase ventilation system in heavy-duty engines, contributing to overall engine performance and longevity.

Basic Concepts and Functionality

Crankcase breather systems are integral to the operation of internal combustion engines. They allow for the release of gases that accumulate within the crankcase, which is the lower part of the engine block that houses the crankshaft. These gases, which include air, fuel vapors, and combustion byproducts, must be expelled to prevent pressure buildup and contamination of the engine oil. The Crankcase Breather Heater operates within this system by warming the breather air, which helps in the efficient removal of these gases, particularly in cold weather conditions where condensation can form and lead to oil dilution and other issues ¹.

Purpose and Role in Truck Operation

The Crankcase Breather Heater serves a specific purpose in heavy-duty truck engines by ensuring that the crankcase ventilation system functions effectively under a wide range of operating conditions. By heating the breather air, it aids in the removal of moisture and contaminants from the crankcase, which can otherwise lead to oil degradation and engine wear. This contributes to maintaining engine performance, efficiency, and longevity, especially in environments where temperature fluctuations are common ².

Key Features

The Crankcase Breather Heater is characterized by its robust design and construction, utilizing materials that are resistant to the harsh conditions within an engine environment. Its key features include a durable housing, efficient heating element, and a design that integrates seamlessly with the engine’s crankcase ventilation system. These attributes ensure that the breather heater can withstand the demands of heavy-duty truck operation while providing reliable performance ³.

Benefits

The advantages of incorporating the Crankcase Breather Heater into heavy-duty truck engines are manifold. It contributes to improved engine performance by ensuring that the crankcase remains free of contaminants and moisture. This leads to reduced emissions, as a cleaner engine operates more efficiently. Additionally, the breather heater enhances the reliability of the engine, particularly in cold weather, by preventing the formation of condensation within the crankcase. This can result in extended engine life and reduced maintenance requirements ⁴.

Troubleshooting and Maintenance

Common issues with the Crankcase Breather Heater may include reduced heating efficiency or physical damage to the unit. Troubleshooting steps may involve checking the electrical connections, inspecting the heating element for signs of wear, and ensuring that the breather system is free of obstructions. Routine maintenance practices include regular inspection of the breather heater and its connections, as well as monitoring the condition of the crankcase ventilation system to ensure optimal performance and longevity of the component.

Installation and Compatibility

Proper installation of the Crankcase Breather Heater is crucial for its effective operation. It should be installed according to the manufacturer’s guidelines, ensuring that all connections are secure and that the unit is properly positioned within the engine’s ventilation system. Compatibility with different Cummins engine models should be verified to ensure that the breather heater is suitable for the specific application. This may involve consulting Cummins’ documentation or contacting their technical support for guidance.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a history spanning over a century, Cummins is renowned for its commitment to innovation, quality, and customer satisfaction. The company’s product offerings cater to various industries, with a strong focus on heavy-duty truck engines. Cummins’ reputation in the automotive industry is built on its dedication to producing reliable, efficient, and durable power solutions that meet the demanding requirements of its customers.

Crankcase Breather Heater for Cummins Engines

The Crankcase Breather Heater, part number 6435628, is designed to enhance the performance and longevity of certain Cummins engines. This part is specifically engineered to fit seamlessly with the F3.8 CM2350 F128C and QSF3.8 CM2350 F107 engines, ensuring optimal operation and efficiency.

For the F3.8 CM2350 F128C engine, the Crankcase Breather Heater is integrated into the engine’s design to manage the crankcase ventilation system effectively. By maintaining the correct temperature within the crankcase, this heater prevents the buildup of harmful vapors and condensation, which can lead to engine damage over time.

Similarly, in the QSF3.8 CM2350 F107 engine, the Crankcase Breather Heater plays a pivotal role in the engine’s ventilation process. It ensures that the crankcase remains at an optimal temperature, thereby reducing the risk of moisture and vapor accumulation. This not only enhances the engine’s performance but also extends its operational lifespan.

Both engines benefit from the precise engineering of the Crankcase Breather Heater, which is designed to fit perfectly within the engine’s architecture. This ensures that the heater can efficiently perform its function without requiring any modifications to the engine’s existing components.

Conclusion

The Crankcase Breather Heater 6435628 is a vital component for maintaining the efficiency and longevity of heavy-duty truck engines. Its role in managing crankcase ventilation, especially in cold weather conditions, is crucial for preventing engine damage and ensuring optimal performance. Regular maintenance and proper installation are key to maximizing the benefits of this Cummins part.