4974668
1 Cylinder Air Compressor
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$1,249.95 $1,487.44

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The 4974668 Single Cylinder Air Compressor, manufactured by Cummins, is a specialized product designed for commercial trucks. It plays a significant role in various systems that require compressed air.

Basic Concepts of Single Cylinder Air Compressors

Single cylinder air compressors convert power into potential energy stored in compressed air. This is achieved through a piston moving within a cylinder, drawing in air and compressing it. Key components include the piston, cylinder, intake and exhaust valves, and a drive mechanism 1.

Role in Truck Operation

This part provides the necessary compressed air for critical systems in trucks, including the braking system, suspension system, and auxiliary equipment such as air horns and pneumatic tools.

Key Features

The 4974668 is characterized by its robust design and construction, featuring high-quality materials for durability and reliability. Its single-cylinder configuration allows for efficient air compression with minimal energy consumption. Advanced valve technology and precision engineering enhance its performance and reliability under demanding conditions 2.

Benefits

Benefits of this Cummins part include improved efficiency in air compression, leading to reduced fuel consumption. Its reliable operation ensures consistent performance of truck systems that depend on compressed air. Furthermore, its durable construction contributes to lower maintenance costs and longer service life 3.

Troubleshooting and Maintenance

Common issues may include unusual noises, reduced air output, or leaks. Diagnostic procedures involve checking for worn components, ensuring proper lubrication, and verifying electrical connections. Recommended maintenance practices include regular inspection of valves and seals, cleaning the compressor, and following the manufacturer’s guidelines for lubrication and replacement of wear parts.

Installation Considerations

When installing this part, it is important to consider factors such as proper mounting to ensure stability, alignment with the drive mechanism to prevent undue stress, and integration with the truck’s existing air system to maintain compatibility and efficiency. Careful planning and adherence to installation guidelines are crucial for optimal performance.

Performance Optimization

To optimize the performance of the 4974668, adjustments may be made to the drive belt tension and compressor settings to match the specific requirements of the truck’s systems. Upgrades such as high-efficiency filters and improved cooling systems can further enhance reliability and efficiency. Best practices include regular maintenance and monitoring of compressor performance to ensure it operates within optimal parameters.

Safety Precautions

When working with this part, it is important to follow safety precautions to protect personnel and equipment. This includes proper handling during installation and maintenance, adherence to maintenance schedules to prevent unexpected failures, and operation within the specified parameters to avoid damage. Safety guidelines should be followed to ensure a safe working environment.

Cummins Engine Compatibility with Part 4974668

The 4974668 is designed to integrate seamlessly with various Cummins engine models. This part is engineered to provide reliable and efficient air compression, ensuring optimal performance across different engine applications.

ISM CM570

The ISM CM570 engine benefits from the 4974668 air compressor due to its robust design and compatibility with the engine’s air system requirements. This part ensures that the engine maintains proper air pressure, which is crucial for efficient combustion and overall engine performance.

ISM11 CM876 SN

Similarly, the ISM11 CM876 SN engine is well-suited for the 4974668 air compressor. This engine model, known for its high power output and reliability, requires a dependable air compressor to support its demanding operational needs. The 4974668 part meets these requirements by providing consistent and reliable air compression, contributing to the engine’s smooth operation and longevity.

By integrating the 4974668 air compressor into these engine models, Cummins ensures that users experience enhanced performance and reliability. This compatibility highlights Cummins’ commitment to providing high-quality components that meet the specific needs of their engine lineup.

Role of Part 4974668 Single Cylinder Air Compressor in Engine Systems

The 4974668 Single Cylinder Air Compressor is an integral component in various engine systems, providing the necessary pressurized air for efficient operation.

In fuel injection systems, the compressor ensures that the fuel is atomized properly by delivering a consistent air supply. This enhances the combustion process, leading to better fuel efficiency and reduced emissions.

For turbocharger systems, the air compressor plays a significant role in increasing the mass flow of air entering the engine. This results in higher power output without the need for a larger displacement engine.

In brake systems, particularly those using air brakes, the compressor is responsible for building and maintaining the required air pressure in the brake lines. This ensures that the brakes respond promptly and effectively when applied.

The compressor also supports pneumatic tools used in maintenance and repair tasks. By providing a reliable air source, it enables the efficient operation of drills, grinders, and other tools, enhancing productivity.

Furthermore, in cab pressurization systems for certain vehicles, the air compressor helps maintain a comfortable environment for occupants by regulating the air pressure inside the cabin.

Overall, the 4974668 Single Cylinder Air Compressor is integral to the performance and functionality of these engine systems, ensuring they operate smoothly and efficiently.

Conclusion

The 4974668 Single Cylinder Air Compressor by Cummins is a robust and reliable component designed for commercial trucks. Its role in various engine systems, including fuel injection, turbocharger, brake, and pneumatic tools, underscores its importance in ensuring efficient and reliable truck operation. With its durable construction, advanced features, and compatibility with Cummins engines, this part offers significant benefits in terms of performance, maintenance, and safety.


  1. Reif, Konrad Ed. Fundamentals of Automotive and Engine Technology: Standard Drives, Hybrid Drives, Brakes, Safety Systems. Springer Vieweg, 2014.

  2. Huang, Matthew. Vehicle Crash Dynamics. CRC Press, 2002.

  3. Ling, Frederick F. The Automotive Body. Springer Science, 2011.

* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.