3393819
Intake Air Heater
Cummins®

The Cummins 3393819 Intake Air Heater is a component designed to enhance the operation of heavy-duty trucks, particularly in cold climates. Its role is to preheat the intake air before it enters the engine, which can have several beneficial effects on engine performance and efficiency.

Basic Concepts of Intake Air Heaters

An intake air heater is a device used in diesel engines to warm the air entering the combustion chamber. This preheating process is vital in cold climates, where the density of cold air can lead to incomplete combustion and increased emissions ¹. By raising the temperature of the intake air, the heater ensures more efficient fuel combustion, which can lead to better engine performance and reduced wear on engine components.

Purpose of the Cummins 3393819 Intake Air Heater

The Cummins 3393819 Intake Air Heater is integral to the operation of a truck’s engine. It preheats the intake air, which can improve engine performance by ensuring more complete combustion. This can lead to better fuel efficiency and reduced emissions. Additionally, preheating the intake air can make engine start-up easier in cold weather, reducing the strain on the engine during start-up.

Key Features

The Cummins 3393819 Intake Air Heater is constructed with durable materials and incorporates advanced heating elements. Its design allows for seamless integration with the engine’s air intake system. The heater is engineered to withstand the harsh conditions often encountered in heavy-duty truck operations, ensuring reliable performance over time.

Benefits

Using the Cummins 3393819 Intake Air Heater offers several advantages. It improves engine start-up in cold weather, enhances fuel combustion for better efficiency, reduces wear on engine components, and has the potential to lower emissions. These benefits contribute to the overall performance and longevity of the truck’s engine ².

Installation and Integration

Proper installation of the Cummins 3393819 Intake Air Heater is crucial for its effective operation. It should be integrated into the truck’s engine system with consideration for any necessary modifications. Following manufacturer guidelines ensures that the heater functions as intended, providing the expected benefits to engine performance and efficiency.

Troubleshooting and Maintenance

Common issues with the Cummins 3393819 Intake Air Heater may include electrical faults or physical damage to the heating elements. Diagnostic procedures should be followed to identify and resolve these issues ³. Regular maintenance, such as cleaning and inspecting the heater, can help ensure optimal performance and longevity.

Performance Impact

The Cummins 3393819 Intake Air Heater can affect overall truck performance by improving engine efficiency, enhancing power output, and increasing operational reliability in various conditions. Its role in preheating intake air contributes to these performance improvements, making it a valuable component in heavy-duty truck engines.

Environmental Considerations

The use of an intake air heater like the Cummins 3393819 can have positive environmental impacts. By improving combustion efficiency and reducing cold-start emissions, it plays a part in meeting regulatory standards for emissions. This contributes to a reduction in the environmental footprint of heavy-duty trucks.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history of innovation in the diesel engine and component manufacturing industry, Cummins is committed to providing reliable, efficient, and environmentally responsible power solutions for its customers.

Cummins Intake Air Heater 3393819 Compatibility

The Cummins Intake Air Heater part number 3393819 is designed to enhance engine performance by preheating the intake air, ensuring optimal combustion efficiency, especially in cold weather conditions. This part is compatible with a range of Cummins engines, providing a seamless fit and reliable operation.

Engine Compatibility

• 6B5.9
• Other Cummins Engines

The intake air heater 3393819 is engineered to fit snugly within the engine’s intake system, ensuring that it effectively warms the incoming air. This compatibility extends to various Cummins engines, making it a versatile component for maintaining engine performance across different models.

Role of Part 3393819 Intake Air Heater in Engine Systems

The part 3393819 Intake Air Heater is an essential component in enhancing the performance and efficiency of engine systems, particularly in cold weather conditions. This component works in conjunction with several other systems to ensure optimal engine operation.

Integration with Air Intake System

The Intake Air Heater is strategically positioned within the Air Intake System. Its primary function is to preheat the incoming air before it enters the engine. This preheating process is vital for maintaining the correct air-fuel mixture, especially when the ambient temperature is low. The heated air ensures that the engine reaches its optimal operating temperature more quickly, which is beneficial for both performance and emissions.

Collaboration with Air Heater Starting System

When the engine is started in cold conditions, the Air Heater Starting System activates the Intake Air Heater. This system works in tandem to provide a burst of warm air to the intake tract. The result is a smoother start and reduced strain on the engine components during ignition. This collaboration is particularly important in diesel engines, where cold starts can be more challenging.

Assistance to Aid Systems

The Intake Air Heater also plays a supportive role in various Aid Systems within the engine. For instance, it assists the fuel injection system by ensuring that the fuel is atomized properly in colder temperatures. This leads to more efficient combustion and better overall engine performance. Additionally, it helps the exhaust gas recirculation (EGR) system by warming the intake air, which can improve the mixing of exhaust gases and fresh air, leading to reduced emissions.

Enhanced Performance in Cold Weather

In summary, the part 3393819 Intake Air Heater is a key component that enhances the functionality of the Air Intake System, Air Heater Starting System, and various Aid Systems. Its role in preheating the intake air ensures that the engine operates efficiently and effectively, even in the most demanding cold weather conditions. This not only improves performance but also contributes to longer engine life and reduced maintenance needs.

Conclusion

The Cummins 3393819 Intake Air Heater is a critical component for heavy-duty trucks, especially in cold climates. It enhances engine performance, improves fuel efficiency, reduces emissions, and ensures easier engine start-ups in cold weather. Proper installation, regular maintenance, and understanding its role within the engine system are essential for maximizing the benefits of this Cummins part.