4940190
AIR COMPRESSOR
Cummins®

The Cummins 4940190 Air Compressor Unit is a vital component in the pneumatic systems of heavy-duty trucks. It is designed to meet the demanding requirements of commercial truck operations, ensuring reliable performance and efficiency in various truck systems that rely on compressed air.

Basic Concepts of Air Compressor Units

An air compressor unit is a device that converts power into potential energy stored in pressurized air. Within a truck’s pneumatic system, the compressor draws in ambient air, compresses it, and stores it in a reservoir. This compressed air is then used to power various systems, including brakes, suspension, and other pneumatic controls. The principles of compressed air technology involve the conversion of mechanical energy into pneumatic energy, which is then utilized to perform work within the truck’s systems ².

Purpose of the 4940190 Air Compressor Unit

This Cummins part plays a significant role in the operation of a truck by generating and maintaining the necessary air pressure for various systems. It ensures that the truck’s braking system, suspension, and other pneumatic components receive a consistent supply of compressed air, which is crucial for their proper function. This unit is responsible for building and sustaining the air pressure required for safe and efficient truck operation ³.

Key Features

The 4940190 Air Compressor Unit is characterized by its robust design and high-quality construction materials, which contribute to its durability and performance. It incorporates advanced technological features that enhance its efficiency and reliability. These features include precision-engineered components, optimized airflow design, and robust build quality, ensuring it can withstand the rigors of heavy-duty truck operations ⁴.

Benefits

The advantages provided by the 4940190 Air Compressor Unit include improved efficiency, reliability, and performance in truck operations. Its design allows for consistent air pressure delivery, reducing the likelihood of system failures. The unit’s efficiency contributes to lower operational costs, while its reliability ensures that truck systems operate smoothly and safely ¹.

Installation and Integration

When installing the 4940190 Air Compressor Unit, it is important to consider compatibility with various truck models and integration with existing pneumatic systems. Proper installation involves following manufacturer guidelines to ensure the unit is correctly mounted, connected, and configured within the truck’s system. This process may require adjustments to existing components to accommodate the new unit, ensuring seamless operation.

Maintenance and Care

Routine maintenance and care of the 4940190 Air Compressor Unit are essential for ensuring optimal performance and longevity. Regular inspection procedures should be conducted to check for wear, leaks, or other issues that may affect the unit’s operation. Common maintenance tasks include cleaning or replacing filters, checking and tightening connections, and monitoring air pressure levels to ensure they remain within the specified range.

Troubleshooting Common Issues

Common problems that may arise with the 4940190 Air Compressor Unit include insufficient air pressure, unusual noises, or system failures. Troubleshooting these issues involves identifying the symptoms, checking for obvious causes such as leaks or blockages, and performing diagnostic tests to pinpoint the problem. Solutions may range from simple adjustments or repairs to more complex component replacements, depending on the issue’s nature.

Performance Enhancements

Potential upgrades or modifications to the 4940190 Air Compressor Unit can enhance its performance, efficiency, or compatibility with specific truck applications. These enhancements may include installing higher-efficiency components, optimizing the unit’s airflow design, or integrating advanced control systems. Such modifications can improve the unit’s overall performance, making it more suited to the demands of specific truck operations.

Cummins Corporation Overview

Cummins Corporation is a renowned manufacturer in the automotive industry, with a long history of innovation and quality in producing automotive components. The company is known for its commitment to developing reliable, efficient, and durable products that meet the needs of commercial and industrial applications. Cummins’ reputation is built on its dedication to excellence, continuous improvement, and customer satisfaction, making it a trusted name in the industry.

Cummins Air Compressor Unit 4940190 Compatibility

The Cummins Air Compressor Unit 4940190 is a versatile component designed to fit a variety of Cummins engines. This part is engineered to provide reliable air compression for the engine’s needs, ensuring optimal performance and efficiency. Below is a detailed overview of the engines with which this air compressor unit is compatible.

Compatible Engines

• B4.5 CM2350 B135B
• B6.7 CM2350 B135B
• F4.5 CM2620 F139B
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISBE CM2150
• ISBE4 CM850
• QSB4.5 CM850 (CM2850)
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

Grouping by Engine Series

B Series Engines

• B4.5 CM2350 B135B
• B6.7 CM2350 B135B

F Series Engines

• F4.5 CM2620 F139B

ISB/ISD Series Engines

• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104

ISBE Series Engines

• ISBE CM2150
• ISBE4 CM850

QSB Series Engines

• QSB4.5 CM850 (CM2850)
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

This comprehensive compatibility ensures that the Cummins Air Compressor Unit 4940190 can be used across a wide range of engine models, providing a reliable solution for maintaining and enhancing engine performance.

Integration of Part 4940190 Air Compressor Unit with Engine Systems

The part 4940190 Air Compressor Unit is an essential component in various engine systems, providing the necessary pressurized air for multiple functions. Its role is multifaceted, ensuring the efficient operation of several critical systems within the engine.

Role in the Compressor System

The Air Compressor Unit is integral to the compressor system, where it generates compressed air. This compressed air is then utilized to enhance the efficiency of the combustion process. By increasing the air pressure, the unit allows for a greater amount of air to be mixed with fuel, leading to more complete combustion and improved engine performance ².

Contribution to the Air System

In the air system, the Air Compressor Unit plays a significant role in maintaining the required air pressure for various engine functions. It supplies pressurized air to the intake manifold, which is essential for optimal air-fuel mixture and combustion. Additionally, the unit supports the pneumatic systems within the engine, such as actuators and valves, ensuring they operate smoothly and reliably ³.

Support for Engine Systems

Beyond its direct role in the compressor and air systems, the Air Compressor Unit indirectly supports other engine components. For instance, it provides the necessary air pressure for the turbocharging system, enhancing the engine’s power output. Moreover, it contributes to the efficiency of the emissions control system by ensuring that the air-fuel ratio remains within optimal parameters, reducing harmful emissions ⁴.

Conclusion

In summary, the 4940190 Air Compressor Unit is a vital component that enhances the performance and efficiency of engine systems through the provision of pressurized air. Its integration ensures that various engine functions operate seamlessly, contributing to overall engine reliability and performance.