4940173
Intake Air Heater
Cummins®

Introduction

The Cummins 4940173 Intake Air Heater is a component designed to enhance the operation of heavy-duty trucks, particularly in challenging environmental conditions. This part is integral to the engine system, contributing to efficient engine start-ups, improved fuel efficiency, and reduced emissions ¹.

Basic Concepts of Intake Air Heaters

An intake air heater is a device that warms the air entering the engine. This function is particularly vital in diesel engines, where cold air can lead to inefficient combustion. By preheating the intake air, the heater ensures that the engine operates more efficiently, even in cold weather conditions. This preheating process aids in achieving optimal combustion temperatures more quickly, which is beneficial for engine performance and longevity ².

Purpose of the Cummins 4940173 Intake Air Heater

The Cummins 4940173 Intake Air Heater is specifically designed to facilitate easier engine start-ups in cold conditions by warming the intake air. This warming process contributes to more efficient fuel combustion, which can lead to improved fuel efficiency and reduced emissions. Additionally, by ensuring that the engine reaches its optimal operating temperature faster, the heater helps in minimizing wear on engine components ³.

Key Features

The Cummins 4940173 Intake Air Heater is constructed with durable materials to withstand the harsh conditions typical of heavy-duty truck operations. Its design incorporates advanced technological features that enhance its performance, ensuring reliable operation under various conditions. The heater is engineered to integrate seamlessly with the truck’s engine system, providing consistent and efficient heating of the intake air.

Benefits of Using the Cummins 4940173 Intake Air Heater

Utilizing the Cummins 4940173 Intake Air Heater offers several advantages. It improves engine performance in cold weather by ensuring that the intake air is at an optimal temperature for combustion. This can lead to reduced wear on engine components due to more efficient operation. Additionally, the heater can contribute to potential fuel savings by enhancing combustion efficiency.

Installation and Integration

Proper installation of the Cummins 4940173 Intake Air Heater is crucial for its effective operation. It should be installed according to the manufacturer’s guidelines to ensure it integrates seamlessly with the truck’s engine system. Considerations for optimal performance include ensuring proper electrical connections and securing the heater in a location that allows for efficient air flow and heat distribution.

Troubleshooting Common Issues

Common issues with intake air heaters may include failure to heat the air adequately or electrical problems. These issues can often be traced back to faulty connections, damaged components, or issues with the control system. Troubleshooting steps may involve checking electrical connections, inspecting the heater for physical damage, and ensuring the control system is functioning correctly.

Maintenance Tips

Regular maintenance of the Cummins 4940173 Intake Air Heater is important for prolonging its lifespan and ensuring consistent performance. Maintenance practices should include periodic inspections for signs of wear or damage, cleaning the heater to remove any debris that may obstruct airflow, and ensuring all electrical connections are secure and free from corrosion.

Performance in Various Conditions

The Cummins 4940173 Intake Air Heater is designed to perform effectively under a range of environmental conditions, including extreme cold. Its ability to preheat the intake air ensures that the engine operates efficiently, even in the most challenging conditions. This consistent performance contributes to reliable engine operation and can help in maintaining fuel efficiency and reducing emissions.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. The company’s commitment to advancing technology and improving product performance is evident in its wide range of engine components, including the Cummins 4940173 Intake Air Heater.

Cummins Intake Air Heater 4940173 Compatibility

The Cummins Intake Air Heater part number 4940173 is designed to enhance the performance of several engine models by ensuring that the air entering the engine is at an optimal temperature. This part is particularly crucial in cold weather conditions, where cold air can hinder engine efficiency and performance. Below is a detailed description of the compatibility of this intake air heater with various Cummins engine models:

Compatible Engines

• 6C8.3
• ISC CM850
• ISL9 CM2150 SN
• ISL9.5 CM2880 L138
• L8.9 CM2670 L134C
• L8.9 L121
• L9 CM2670 L128B
• QSC8.3 CM2880 C102
• QSC8.3 CM850 (CM2850)
• QSL8.9 CM2150 L141
• QSL9 CM850 (CM2850)
• QSL9.3 CM2880 L113

Grouping of Compatible Engines

The intake air heater 4940173 is compatible with a diverse range of Cummins engines, which can be grouped based on their model series and specifications:

1. 6C8.3 Series

   • 6C8.3

2. ISC Series

   • ISC CM850

3. ISL9 Series

   • ISL9 CM2150 SN
   • ISL9.5 CM2880 L138

4. L8.9 Series

   • L8.9 CM2670 L134C
   • L8.9 L121

5. L9 Series

   • L9 CM2670 L128B

6. QSC8.3 Series

   • QSC8.3 CM2880 C102
   • QSC8.3 CM850 (CM2850)

7. QSL8.9 and QSL9 Series

   • QSL8.9 CM2150 L141
   • QSL9 CM850 (CM2850)
   • QSL9.3 CM2880 L113

This intake air heater is engineered to fit seamlessly into the specified engine models, ensuring that the air intake system operates efficiently across a range of conditions.

Role of Part 4940173 Intake Air Heater in Engine Systems

The part 4940173 Intake Air Heater is an essential component in enhancing the performance and efficiency of engine systems, particularly in cold-start conditions. When integrated into the engine system, this component works in conjunction with several other parts to optimize the combustion process.

Interaction 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 combustion chamber. This preheating process is vital for several reasons:

• Improved Combustion Efficiency: By raising the temperature of the intake air, the heater ensures that the air-fuel mixture burns more completely. This leads to more efficient combustion, which is especially beneficial during cold starts when the air is denser and colder.

• Reduced Emissions: Efficient combustion results in lower emissions of harmful pollutants. The Intake Air Heater helps in achieving a more thorough burn, thereby reducing the output of unburnt hydrocarbons and other emissions.

Synergy with Air Heater Starting System

The Intake Air Heater is often part of a more comprehensive air heater starting system. This system may include:

• Thermostat: Regulates the temperature of the intake air to ensure it reaches the optimal level for combustion without overheating.

• Electrical Heating Element: Provides the necessary heat to warm the intake air. The part 4940173 typically houses this element.

• Control Module: Manages the operation of the heater, activating it during cold starts and deactivating it once the engine reaches operating temperature.

Contribution to Overall Engine Performance

In addition to its direct role in the air intake system, the Intake Air Heater indirectly contributes to other aspects of engine performance:

• Enhanced Cold-Start Performance: By ensuring that the air-fuel mixture is at an optimal temperature, the heater facilitates smoother and quicker engine starts in cold conditions.

• Consistent Engine Operation: Stable combustion leads to more consistent engine operation, reducing the likelihood of misfires and other performance issues.

Conclusion

In summary, the part 4940173 Intake Air Heater plays a significant role in maintaining efficient and reliable engine operation, particularly in challenging cold-start scenarios. Its integration with the air intake and air heater starting systems underscores its importance in modern engine designs.