5257939
2 Cylinder Air Compressor
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$1,199.95 $1,427.94

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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 5257939 Two Cylinder Air Compressor, manufactured by Cummins, is a specialized product designed for use in commercial trucks. It plays a significant role in various pneumatic systems within these vehicles.

Basic Concepts of Two Cylinder Air Compressors

Two cylinder air compressors operate by compressing air to generate high-pressure output. These compressors utilize two cylinders to enhance efficiency and reliability. They are widely used in industries such as automotive, manufacturing, and construction, where compressed air is essential for powering tools, operating machinery, and supporting pneumatic systems 1.

Operational Role in Trucks

In commercial trucks, the 5257939 Two Cylinder Air Compressor is responsible for generating the compressed air required to power pneumatic systems, including the braking system, suspension, and other critical components. This ensures efficient and reliable operation of these systems, contributing to the overall performance and safety of the vehicle 2.

Key Features

The 5257939 Two Cylinder Air Compressor features a design with two cylinders working in tandem to deliver consistent and reliable compressed air output. It is constructed using high-quality materials for durability and longevity. Additionally, it incorporates advanced engineering solutions to improve efficiency and reduce maintenance requirements 3.

Benefits

This Cummins part offers several benefits compared to alternative compressor designs. Its dual-cylinder configuration enhances efficiency and reliability, ensuring consistent performance under varying operating conditions. The compressor’s robust construction and advanced features contribute to its longevity, reducing the need for frequent replacements and repairs 4.

Installation and Integration

Proper installation and integration of the 5257939 Two Cylinder Air Compressor into a truck’s pneumatic system are essential for optimal performance. It is recommended to follow manufacturer guidelines and best practices during installation to ensure compatibility and efficiency. This includes proper mounting, secure connections, and adherence to safety protocols.

Maintenance and Troubleshooting

Routine maintenance tasks are crucial for ensuring the optimal performance and longevity of the 5257939 Two Cylinder Air Compressor. Regular inspections, cleaning, and lubrication of moving parts are recommended to prevent wear and tear. Troubleshooting common issues, such as leaks or inconsistent air pressure, can often be resolved through simple adjustments or repairs, minimizing downtime and maintenance costs.

Safety Considerations

When working with the 5257939 Two Cylinder Air Compressor, it is important to observe safety considerations and precautions. This includes proper handling, storage, and operational procedures to minimize risks. Ensuring that the compressor is installed and maintained according to manufacturer guidelines can help prevent accidents and ensure safe operation.

Environmental Impact

The operation and disposal of the 5257939 Two Cylinder Air Compressor have environmental implications. Efforts to improve energy efficiency and reduce emissions can contribute to minimizing its environmental footprint. Additionally, proper disposal and recycling of the compressor at the end of its lifecycle can help mitigate environmental impact.

Cummins Corporation

Cummins Corporation is a renowned manufacturer with a rich history in the automotive and industrial sectors. The company is known for its commitment to innovation, quality, and customer satisfaction. Cummins offers a wide range of products, including engines, powertrains, and components, catering to various industries and applications. Its reputation for reliability and performance has made it a trusted name in the industry.

Cummins Two Cylinder Air Compressor Part 5257939 Compatibility

The Cummins part number 5257939, a Two Cylinder Air Compressor, is designed to fit a variety of Cummins engines. This air compressor is engineered to provide reliable and efficient air compression, ensuring optimal performance across different engine models.

B6.7 and QSB6.7 Series

The Cummins Two Cylinder Air Compressor part 5257939 is compatible with the B6.7 and QSB6.7 engines. These engines are known for their robust performance and are widely used in various applications, including agricultural, industrial, and construction equipment. The air compressor fits seamlessly with these engines, providing the necessary air supply for optimal operation.

  • B6.7 G CM2180
  • QSB6.7 CM2250
  • QSB6.7 CM850 (CM2850)

ISB/ISD Series

The ISB/ISD series engines also benefit from the compatibility of the Cummins Two Cylinder Air Compressor part 5257939. These engines are known for their versatility and are used in a wide range of applications, including heavy-duty trucks, buses, and industrial machinery. The air compressor ensures that these engines receive the required air supply for efficient performance.

  • ISB/ISD4.5 CM2150
  • ISB/ISD6.7 CM2150 SN
  • ISB/ISD6.7 G CM2180

ISBE Series

The ISBE series engines are designed for high-performance applications, and the Cummins Two Cylinder Air Compressor part 5257939 is an ideal fit for these engines. This air compressor is compatible with various ISBE engine models, ensuring that these engines operate at peak efficiency.

  • ISBE CM2150
  • ISBE CM800
  • ISBE4 CM850

QSB7 Series

The QSB7 series engines are known for their durability and reliability, and the Cummins Two Cylinder Air Compressor part 5257939 is designed to work with these engines. This compatibility ensures that the QSB7 engines receive the necessary air supply for optimal performance.

  • QSB7 CM2880 B117

This comprehensive compatibility ensures that the Cummins Two Cylinder Air Compressor part 5257939 is a versatile and reliable choice for a wide range of Cummins engines, providing essential air compression for efficient engine operation.

Role of Part 5257939 Two Cylinder Air Compressor in Engine Systems

In the context of engine systems, the 5257939 Two Cylinder Air Compressor is integral to the efficient operation of several components.

Firstly, the compressor is responsible for generating the necessary air pressure required by the air brake system. This ensures that the braking mechanism operates effectively, providing the vehicle with the required stopping power.

Secondly, the compressor plays a significant role in the pneumatic control systems. It supplies the compressed air needed to operate various pneumatic actuators and valves, which in turn control different functions within the engine system.

Additionally, the compressor contributes to the operation of the air suspension system. By providing the necessary air pressure, it helps maintain the vehicle’s ride height and stability, enhancing both comfort and safety.

Furthermore, the compressor is essential for the functioning of the air-conditioning system. It supplies the compressed air required to drive the air-conditioning compressor, ensuring that the cabin remains cool and comfortable.

Lastly, the compressor is also involved in the operation of the air-start system. It provides the compressed air needed to start the engine, particularly in diesel engines where air-starting is common.

In summary, the 5257939 Two Cylinder Air Compressor is a versatile component that plays a significant role in the operation of various engine systems. Its ability to generate and supply compressed air is essential for the efficient functioning of these systems.

Conclusion

The 5257939 Two Cylinder Air Compressor by Cummins is a critical component in the operation of commercial trucks and various engine systems. Its design, featuring two cylinders, enhances efficiency and reliability, ensuring consistent performance under varying conditions. The compressor’s compatibility with a wide range of Cummins engines makes it a versatile choice for different applications. Proper installation, maintenance, and adherence to safety protocols are essential for optimal performance and longevity. Additionally, considering the environmental impact of its operation and disposal is important for sustainable practices.


  1. Vaclav Smil, The History and Impact of Diesel Engines and Gas Turbines, The MIT Press, 2010.

  2. John F Kershaw, SAE International’s Dictionary for Automotive Engineers, SAE International, 2023.

  3. Konrad Reif, Diesel Engine Management Systems and Components, Springer, 2014.

  4. Konrad Reif Ed, Diesel Engine Management Systems and Components, Springer Vieweg, 2014.

SPECIFICATIONS

Package Dimensions
40.0 x 30.0 x 30.0 in
Weight
12 lbs
* 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.