4940172
Intake Air Heater
Cummins®

The Cummins 4940172 Intake Air Heater is a component designed to enhance the operation of commercial trucks, particularly in cold weather conditions. This part is integral to the engine system, contributing to improved engine performance and efficiency. Understanding its purpose and functionality is key to appreciating its significance in truck operations.

Basic Concepts of Intake Air Heaters

An intake air heater is a device that warms the air entering the engine. This process is vital as it ensures that the air-fuel mixture is at an optimal temperature for combustion. Heating the intake air can lead to more efficient engine operation, particularly in colder climates where the air is denser and colder. This can result in better fuel atomization and combustion, which in turn can enhance engine performance and reduce emissions ¹.

Purpose of the 4940172 Intake Air Heater

The Cummins 4940172 Intake Air Heater is specifically designed to preheat the air entering the engine of a truck. This preheating process plays a role in improving engine efficiency and performance, especially when operating in cold weather. By ensuring that the intake air is at a suitable temperature, the heater contributes to easier engine start-ups, more efficient combustion, and overall better engine operation in low-temperature environments.

Key Features

The Cummins 4940172 Intake Air Heater is characterized by several key features. Its design incorporates robust materials that are resistant to the harsh conditions often encountered in commercial truck operations. The heater is engineered to be compact yet effective, ensuring it can fit within the constraints of a truck’s engine compartment while still delivering significant performance benefits. Additionally, it is designed for easy integration into existing engine systems, minimizing the complexity of installation.

Benefits

Utilizing the Cummins 4940172 Intake Air Heater offers several advantages. It facilitates improved engine start-up in cold weather, which is crucial for maintaining operational schedules in colder climates. The heater also contributes to enhanced fuel efficiency by ensuring optimal combustion conditions. Furthermore, it can lead to reduced emissions, aligning with environmental regulations and promoting cleaner operation. Lastly, by promoting more efficient engine operation, the heater can contribute to prolonged engine life.

Installation and Integration

When installing the Cummins 4940172 Intake Air Heater, it is important to consider compatibility with the specific engine model and the existing intake system. Proper installation ensures that the heater operates efficiently and effectively. Integration into the engine system should be carried out by following manufacturer guidelines to ensure optimal performance and safety.

Troubleshooting and Maintenance

Common issues with the Cummins 4940172 Intake Air Heater may include electrical faults or blockages in the heating element. Regular maintenance, such as checking electrical connections and ensuring the heater is free from obstructions, can help prevent these issues. Additionally, monitoring the heater’s performance and addressing any signs of malfunction promptly can ensure continued optimal operation.

Performance Impact

The Cummins 4940172 Intake Air Heater has a noticeable impact on the overall performance of a truck. By preheating the intake air, it contributes to more efficient engine operation, particularly in cold weather. This can result in smoother engine start-ups, improved fuel economy, and reduced emissions. Data and operational examples illustrate these improvements, highlighting the heater’s role in enhancing truck performance.

Environmental Considerations

The use of an intake air heater like the Cummins 4940172 can have positive environmental impacts. By ensuring optimal combustion conditions, it can lead to reductions in cold-start emissions. This contributes to cleaner operation and aligns with efforts to reduce the environmental footprint of commercial truck operations.

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its commitment to innovation and quality in engine component manufacturing. With a rich history of providing reliable and efficient engine solutions, Cummins continues to play a significant role in advancing the performance and environmental standards of commercial trucks.

Cummins Intake Air Heater Part 4940172 Compatibility

The Cummins Intake Air Heater part 4940172 is designed to fit a variety of Cummins engine models, ensuring optimal performance and efficiency across different applications. This part is engineered to provide efficient heating of the intake air, which is crucial for cold-weather starting and overall engine performance.

Compatible Engines

• ISC CM850
• ISL9 CM2150 SN
• L9 CM2670 L128B
• QSC8.3 CM850 (CM2850)
• QSL9 CM850 (CM2850)

Grouping of Compatible Engines

The intake air heater part 4940172 is compatible with both the ISC and ISL series engines, as well as the QSC and QSL series engines. This compatibility ensures that the part can be used across a range of applications, from heavy-duty trucks to industrial and marine engines.

• ISC and ISL Series Engines:

  • ISC CM850
  • ISL9 CM2150 SN

• QSC and QSL Series Engines:

  • QSC8.3 CM850 (CM2850)
  • QSL9 CM850 (CM2850)

The part is also compatible with the L9 CM2670 L128B engine, which is part of the L series engines. This compatibility ensures that the intake air heater can be used in a wide range of applications, providing reliable performance and efficiency.

By ensuring that the intake air heater part 4940172 is compatible with these engines, Cummins maintains a high standard of quality and reliability, ensuring that the part will perform effectively in various operating conditions.

Role of Part 4940172 Intake Air Heater in Engine Systems

The part 4940172 intake air heater is an essential component in the air intake system of an engine, particularly in cold climates. Its primary function is to warm the incoming air before it enters the combustion chamber. This process enhances engine performance and efficiency in several ways.

Integration with Air Intake System

When the intake air heater is activated, it preheats the air that passes through the air intake duct (AID). This preheated air mixes with the fuel more effectively, leading to a more complete combustion process. The improved combustion efficiency results in better engine performance, reduced emissions, and smoother engine operation, especially during cold starts.

Interaction with Air Heater Starting System

The intake air heater is typically controlled by the air heater starting system. This system includes a thermostat and a control module that activates the heater based on the ambient temperature and engine conditions. When the engine control unit (ECU) detects cold temperatures, it signals the air heater starting system to engage the intake air heater. This ensures that the air entering the engine is at an optimal temperature for combustion, facilitating easier starting and more efficient operation.

Benefits for Engine Performance

By integrating the intake air heater into the engine system, several benefits are realized:

• Improved Cold Start Performance: Warmer air aids in quicker engine starts, reducing the strain on the battery and starter motor.
• Enhanced Fuel Efficiency: Better air-fuel mixture leads to more efficient fuel combustion, which can improve overall fuel economy.
• Reduced Emissions: Complete combustion results in lower emissions of unburnt hydrocarbons and other pollutants.
• Extended Engine Life: Reduced wear and tear on engine components due to smoother operation and less strain during cold starts.

In summary, the intake air heater plays a significant role in optimizing the air intake process, ensuring that the engine operates efficiently and effectively under various conditions.

Conclusion

The Cummins 4940172 Intake Air Heater is a vital component for enhancing the performance and efficiency of commercial trucks, especially in cold weather conditions. By preheating the intake air, this part ensures optimal combustion conditions, leading to improved engine start-ups, enhanced fuel efficiency, reduced emissions, and extended engine life. Its compatibility with a range of Cummins engine models further underscores its versatility and importance in the commercial truck industry.