4988676
1 Cylinder Air Compressor
Cummins®

The Single Cylinder Air Compressor, identified by Cummins Part #4988676, is a specialized component designed for commercial truck applications. Manufactured by Cummins Inc., a renowned name in the automotive and heavy-duty truck parts industry, this compressor is integral to the efficient operation of various truck systems. Its role in maintaining the functionality of pneumatic systems underscores its significance in commercial truck operations ¹.

Basic Concepts and Functionality

Air compressors operate on the principle of compressing air to increase its pressure, which is then utilized to perform work. A single cylinder air compressor, such as the Cummins 4988676, uses a piston within a cylinder to compress air. As the piston moves back and forth, it draws in air and then compresses it, which is then stored in a tank until needed. This mechanism ensures a steady supply of compressed air for various applications ².

Role in Truck Operations

In commercial truck operations, the Single Cylinder Air Compressor plays a vital role in several systems. It is a key component in the braking system, where compressed air is used to apply the brakes. Additionally, it supports the air suspension system, contributing to a smoother ride by adjusting the suspension based on load and road conditions. The compressor also powers other pneumatic systems on the truck, enhancing overall operational efficiency ³.

Key Features

The Cummins 4988676 Single Cylinder Air Compressor is distinguished by its robust design and high-quality construction. It is engineered to withstand the demanding conditions of commercial truck environments. Notable features include its durable materials, efficient compression mechanism, and design that ensures reliable performance under varying operational conditions.

Benefits

Utilizing the Cummins 4988676 Single Cylinder Air Compressor offers several advantages. It provides improved efficiency in air compression, ensuring that truck systems operate smoothly and effectively. The compressor’s reliable performance contributes to the overall dependability of the truck, while its efficient design helps in reducing operational costs associated with maintenance and energy consumption.

Installation and Integration

When installing the Cummins 4988676 Single Cylinder Air Compressor, it is important to consider compatibility with the specific truck model and its existing systems. Proper installation ensures optimal performance and integration with the truck’s pneumatic systems. Guidelines for installation should be followed to ensure safety and efficiency.

Maintenance and Troubleshooting

Routine maintenance is crucial for the longevity and optimal performance of the Single Cylinder Air Compressor. Regular checks and servicing help in identifying potential issues before they become significant problems. Common maintenance practices include inspecting for leaks, ensuring proper lubrication, and checking the compressor’s electrical connections. Troubleshooting tips can assist in addressing issues such as unusual noises, decreased performance, or failure to build pressure.

Performance and Efficiency

The performance metrics of the Cummins 4988676 Single Cylinder Air Compressor include its air output capacity, power consumption, and operational noise levels. These factors contribute to its efficiency in commercial truck applications. The compressor is designed to deliver consistent performance under various operational conditions, ensuring that truck systems operate effectively.

Safety Considerations

Safety is paramount when installing, maintaining, or troubleshooting the Single Cylinder Air Compressor. Important guidelines include ensuring the compressor is properly secured, observing electrical safety practices, and using appropriate personal protective equipment. Adhering to these safety considerations helps in protecting both personnel and equipment.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a strong reputation in the industry, Cummins is committed to delivering high-quality automotive components. The company’s history of innovation and excellence is reflected in its products, including the Cummins 4988676 Single Cylinder Air Compressor.

Compatibility of Cummins Part 4988676 with Various Engine Models

The Cummins part 4988676, a Single Cylinder Air Compressor, is designed to fit a variety of engine models within the Cummins engine family. This part is engineered to ensure compatibility and optimal performance across different engine configurations. Here is a detailed look at the engines with which this air compressor is compatible:

B4.5 and B6.7 Series Engines

• B4.5 CM2350 B135B
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 G CMOH6.0 B125

These engines, part of the B series, are known for their robust performance and reliability. The part 4988676 is specifically designed to integrate seamlessly with these engines, ensuring efficient air compression and contributing to the overall functionality of the engine system.

F4.5 Series Engine

• F4.5 CM2620 F139B

The F4.5 CM2620 F139B engine benefits from the precise engineering of the Cummins part 4988676. This air compressor is tailored to meet the specific requirements of the F series, ensuring that the engine operates at peak efficiency.

ISB/ISD Series Engines

• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISD4.5 CM2220 D108

The ISB/ISD series engines are widely used in various applications due to their versatility and power. The part 4988676 is designed to fit these engines, providing essential air compression capabilities that are crucial for maintaining engine performance.

ISBE Series Engines

• ISBE CM2150
• ISBE4 CM850

The ISBE series engines are known for their efficiency and reliability. The Cummins part 4988676 is engineered to work with these engines, ensuring that the air compression system functions optimally.

QSB Series Engines

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

The QSB series engines are designed for heavy-duty applications. The part 4988676 is compatible with these engines, providing the necessary air compression to support their demanding performance requirements.

By ensuring compatibility with these diverse engine models, the Cummins part 4988676 Single Cylinder Air Compressor plays a critical role in maintaining the efficiency and reliability of the engines it is designed to fit.

Role of Part 4988676 Single Cylinder Air Compressor in Engine Systems

The integration of the part 4988676 Single Cylinder Air Compressor within engine systems is fundamental for optimizing performance and efficiency. This component is instrumental in generating the compressed air required for various engine functions.

Fuel Injection Systems

In fuel injection systems, the compressed air supplied by the 4988676 Single Cylinder Air Compressor ensures precise fuel atomization. This results in a more efficient combustion process, enhancing overall engine performance and reducing emissions.

Pneumatic Actuators

Pneumatic actuators rely on a consistent supply of compressed air to function correctly. The 4988676 Single Cylinder Air Compressor provides the necessary air pressure, enabling these actuators to operate valves and other components with precision and reliability.

Brake Systems

In brake systems, particularly those utilizing air brakes, the 4988676 Single Cylinder Air Compressor plays a key role. It supplies the compressed air needed to engage and disengage the brakes, ensuring safe and effective braking performance.

Suspension Systems

Some advanced suspension systems use air springs that require a steady supply of compressed air. The 4988676 Single Cylinder Air Compressor ensures these systems maintain the correct air pressure, contributing to a smoother ride and better handling.

Cooling Systems

In cooling systems, the 4988676 Single Cylinder Air Compressor can be used to power air-cooled heat exchangers. This helps in dissipating heat more efficiently, maintaining optimal engine temperatures and preventing overheating.

Tool Operation

For maintenance and repair tasks, the compressed air from the 4988676 Single Cylinder Air Compressor is essential for operating pneumatic tools. This includes drills, grinders, and impact wrenches, facilitating quicker and more efficient work.

Auxiliary Systems

Various auxiliary systems within the engine, such as air-operated clutches and air-driven pumps, depend on the consistent air supply provided by the 4988676 Single Cylinder Air Compressor. This ensures these systems function smoothly and reliably.

Conclusion

The Cummins 4988676 Single Cylinder Air Compressor is a vital component in commercial truck operations, providing essential air compression capabilities for various engine systems. Its robust design, efficient performance, and compatibility with a wide range of Cummins engines make it a reliable choice for maintaining the efficiency and reliability of commercial trucks.