4989268
AIR COMPRESSOR
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$1,049.95 $1,249.44

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

Introduction

The Cummins 4989268 Air Compressor is a vital component designed for commercial trucks. It generates and maintains the compressed air necessary for various truck systems, including the braking system, suspension, and other pneumatic controls. This part ensures the efficient and safe operation of commercial vehicles.

Basic Concepts of Air Compressors

Air compressors convert power into potential energy stored in pressurized air. They draw in air, compress it, and store it in a tank until needed. In commercial trucking, they are essential for operating air brakes, suspension systems, and other air-dependent components 1.

Role of the Cummins 4989268 Air Compressor in Truck Operation

This Cummins part supplies the necessary compressed air for the braking system, ensuring effective and reliable brake engagement. It also supports the air suspension system, contributing to a smoother ride and better load distribution. Additionally, it powers other pneumatic systems on the truck, enhancing overall vehicle performance and safety 2.

Key Features

The 4989268 is characterized by its robust design and high build quality. It is engineered for durability and efficiency, ensuring reliable performance under demanding conditions. The compressor incorporates advanced technological features that enhance its efficiency and longevity, making it a valuable component for commercial truck operations.

Benefits of Using the Cummins 4989268 Air Compressor

Utilizing this part in truck operations offers several benefits. It contributes to improved performance and reliability of the truck’s air-dependent systems. The compressor’s efficiency ensures that it operates effectively with minimal energy consumption, leading to cost savings and reduced environmental impact. Its robust construction and advanced features also contribute to its longevity, providing value over time.

Installation and Integration

Proper installation and integration of the AIR COMPRESSOR into a commercial truck require adherence to specific guidelines. This includes ensuring that the truck’s electrical and pneumatic systems are compatible with the compressor. It is also important to follow the manufacturer’s instructions for installation to ensure optimal performance and safety.

Maintenance and Care

To ensure the longevity and optimal performance of the 4989268, regular maintenance and care are necessary. This includes conducting regular checks for leaks, ensuring proper lubrication, and cleaning the compressor and its components as needed. Adhering to a maintenance schedule helps prevent issues and ensures the compressor operates efficiently.

Troubleshooting Common Issues

Common issues that may arise with the 4989268 include leaks, insufficient air pressure, and compressor failure. Troubleshooting these issues involves identifying the source of the problem, whether it be a faulty component, improper installation, or lack of maintenance. Addressing these issues promptly helps maintain the compressor’s performance and reliability.

Safety Considerations

When working with the 4989268, it is important to observe safety considerations. This includes proper handling, operation, and maintenance practices to prevent accidents. Ensuring that the compressor is installed and maintained correctly, and that all safety guidelines are followed, contributes to safe usage and operation.

Cummins Corporation Overview

Cummins Corporation is a renowned manufacturer with a history of producing high-quality engines and components. The company is known for its expertise in engine and component manufacturing, and its commitment to quality and innovation in the automotive industry. Cummins’ reputation is built on its dedication to providing reliable, efficient, and durable products that meet the needs of its customers.

Cummins Air Compressor 4989268 Compatibility

The Cummins Air Compressor part number 4989268 is designed to fit seamlessly with a range of Cummins engines, ensuring optimal performance and reliability. This air compressor is engineered to meet the specific needs of various engine models, providing efficient air supply for essential engine functions.

Engine Compatibility

6C8.3 Engines

The 6C8.3 engines benefit significantly from the integration of the Cummins Air Compressor 4989268. This part ensures that the engine receives a consistent and reliable air supply, which is crucial for maintaining optimal performance and efficiency.

L8.9 Engines

Similarly, the L8.9 engines are well-suited to the Cummins Air Compressor 4989268. This compressor is designed to work with the L8.9 model, providing the necessary air pressure and flow to support the engine’s operational demands.

Grouped Engine Models

For engines within the same family or those sharing similar specifications, the Cummins Air Compressor 4989268 offers a versatile solution. This part is engineered to fit a variety of engine models, ensuring that it can be used across different applications without compromising on performance.

By choosing the Cummins Air Compressor 4989268, engine operators can be confident in the reliability and efficiency of their air supply systems, contributing to the overall health and longevity of their engines.

Role of Part 4989268 Air Compressor in Engine Systems

The 4989268 Air Compressor is a key component in various engine systems, facilitating the efficient operation of several key functions.

Integration with the Compressor

The air compressor works in tandem with the engine’s compressor to enhance overall performance. By supplying compressed air, it assists in improving the efficiency of the compressor. This compressed air is vital for maintaining optimal pressure levels within the system, ensuring that the compressor operates smoothly and effectively. The synergy between the air compressor and the engine compressor results in better fuel efficiency and enhanced power output.

Air System Enhancement

In the air system, the 4989268 Air Compressor plays a significant role in maintaining the required air pressure for various applications. It ensures that the air supply is consistent and reliable, which is essential for the proper functioning of air-operated components such as brakes, suspension systems, and pneumatic tools. The compressor’s ability to deliver a steady air flow under varying conditions contributes to the durability and reliability of the air system.

Support for Engine Cooling

The compressed air provided by the 4989268 Air Compressor also aids in engine cooling. By facilitating the operation of air-cooled components, it helps in dissipating heat more effectively. This is particularly important in high-performance engines where maintaining optimal operating temperatures is key to preventing overheating and ensuring longevity.

Assistance in Fuel Injection Systems

In modern engine systems equipped with fuel injection, the air compressor supports the delivery of a precise air-fuel mixture. This ensures that the engine runs efficiently, with minimal emissions and maximum power output. The consistent air pressure supplied by the compressor is crucial for the accurate functioning of fuel injectors, leading to improved combustion and overall engine performance.

Contribution to Turbocharging

For turbocharged engines, the 4989268 Air Compressor is instrumental in providing the necessary boost. It works alongside the turbocharger to deliver compressed air into the combustion chamber, enhancing the engine’s power and torque. This collaboration results in a more responsive and powerful engine, capable of delivering superior performance under various driving conditions.

Conclusion

The 4989268 Air Compressor is a versatile component that significantly enhances the functionality and efficiency of engine systems through its integration with compressors, air systems, cooling mechanisms, fuel injection systems, and turbocharging applications. Its robust design, advanced features, and compatibility with various engine models make it a valuable asset for commercial truck operations, ensuring reliable and efficient performance.


  1. Quigley, Jon M. SAE International’s Dictionary of Testing, Verification and Validation. SAE International, 2023.

  2. Gillespie, Thomas D. Fundamentals of Vehicle Dynamics. SAE International, 2021.

RELATED PARTS
* 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.