4939055
Air Compressor Cover
Cummins®

The 4939055 Air Compressor Cover is a component manufactured by Cummins, a well-established name in the commercial truck industry. This cover is integral to the operation of commercial trucks, providing a protective enclosure for the air compressor system. Cummins is renowned for its commitment to quality and innovation, ensuring that components like this part meet high standards of performance and reliability ¹.

Purpose and Function

The 4939055 serves to encase and protect the air compressor system within a truck. It plays a role in maintaining the efficiency and reliability of the air compressor by shielding it from external contaminants and environmental factors. The cover helps in preserving the internal components of the compressor, ensuring that they operate under optimal conditions. This protection contributes to the overall performance of the truck’s braking system, as the air compressor is a key component in generating the air pressure required for the brakes ².

Key Features

This Cummins part is designed with several features that enhance its performance and durability. It is constructed from materials that offer robust protection against wear and environmental damage. The cover’s design ensures a snug fit over the compressor, providing comprehensive coverage. Additionally, it may include features such as seals or gaskets to prevent the ingress of dirt and moisture, further safeguarding the compressor’s internal mechanisms ³.

Benefits

The advantages of the 4939055 include enhanced protection for the air compressor against dust, debris, and moisture. This protection can lead to a reduction in wear and tear on the compressor, potentially extending its operational life. By maintaining the compressor in good condition, the cover indirectly contributes to the reliability of the truck’s braking system, which is critical for safe operation.

Installation and Compatibility

Proper installation of the 4939055 is important to ensure it functions as intended. Installation procedures should follow manufacturer guidelines to secure the cover correctly and ensure it does not interfere with other components. Compatibility with various truck models and air compressor systems is a consideration when selecting this cover, and it is advisable to verify that the part is suitable for the specific application.

Maintenance and Troubleshooting

Regular maintenance of the 4939055 involves inspecting it for signs of damage or wear and ensuring that it remains securely fitted. Cleaning the cover as part of routine maintenance can help prevent the accumulation of dirt and debris that could affect its performance. If issues arise, such as damage to the cover or a decrease in compressor efficiency, troubleshooting steps may include inspecting the cover for damage, ensuring it is properly installed, and addressing any underlying compressor issues.

Performance and Reliability

The 4939055 is designed to meet Cummins’ high standards for performance and reliability. It undergoes testing to ensure it can withstand the rigors of commercial truck operation. While specific testing or certification information may vary, the cover is engineered to provide durable protection for the air compressor system.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. The company’s product range includes a variety of components designed to enhance the performance and reliability of commercial vehicles. Cummins’ commitment to quality is evident in its manufacturing processes and the durability of its products, such as the 4939055.

Cummins Air Compressor Cover 4939055 Compatibility

The Cummins Air Compressor Cover part number 4939055 is designed to fit a variety of Cummins engines, ensuring a secure and efficient air compression system. This cover is integral to the engine’s air intake system, providing a protective barrier for the air compressor components.

Compatible Engines

• 6C8.3
• ISL9 CM2150 SN
• ISL9.5 CM2880 L138
• L8.9
• L8.9 CM2670 L134C
• L8.9G CMOH2.0 L125B
• L9 CM2670 L128B
• L9.3 L105
• QSC8.3 CM2880 C102
• QSL9.3 CM2880 L113

This cover is engineered to fit seamlessly with the specified engines, ensuring compatibility and ease of installation. It is crucial for maintaining the integrity of the air intake system and protecting the internal components from debris and environmental factors.

Grouping of Compatible Engines

The Cummins Air Compressor Cover 4939055 is compatible with several engine models, which can be grouped based on their specifications and applications:

• 6C8.3, L8.9, L8.9 CM2670 L134C, L8.9G CMOH2.0 L125B, L9 CM2670 L128B, L9.3 L105: These engines are typically used in various industrial and commercial applications, requiring a robust air compressor cover to ensure longevity and performance.

• ISL9 CM2150 SN, ISL9.5 CM2880 L138, QSC8.3 CM2880 C102, QSL9.3 CM2880 L113: These engines are often found in heavy-duty applications, such as construction and transportation, where durability and efficiency are paramount. The cover for these engines is designed to withstand higher stress and provide superior protection.

By ensuring the correct fitment of the Cummins Air Compressor Cover 4939055, engine performance and reliability are maintained, contributing to the overall efficiency of the machinery.

Role of Part 4939055 Air Compressor Cover in Engine Systems

The part 4939055 is an essential component in the integration and operation of various engine systems. Its primary function is to encase and protect the air compressor, ensuring the efficient and safe operation of the engine’s air supply system.

Integration with the Mounting System

The air compressor cover, part 4939055, plays a significant role in the mounting system of the engine. It provides a secure attachment point for the air compressor, ensuring it is firmly held in place. This stability is vital for the compressor’s performance, as any movement can lead to inefficiencies or damage. The cover also aids in distributing the stresses and vibrations generated by the compressor, protecting both the compressor and the mounting points from undue wear.

Interaction with the Front Gear Train Accessory

In engines where the air compressor is driven by the front gear train accessory, the air compressor cover, part 4939055, ensures a smooth and reliable connection. The cover houses the necessary pulleys and belts that connect the compressor to the gear train. This setup allows for the efficient transfer of power from the engine to the compressor, ensuring consistent air supply. The cover also protects these components from contaminants and debris, maintaining the integrity and performance of the gear train accessory system.

Conclusion

In summary, the air compressor cover, part 4939055, is integral to the proper functioning and protection of the air compressor within the engine system. Its role in the mounting and front gear train accessory components underscores its importance in maintaining engine efficiency and reliability.