3903876
Air Cleaner
Cummins®

The Cummins 3903876 Air Cleaner is a component designed to enhance the operation of commercial trucks. Its primary function is to filter the air entering the engine, ensuring that only clean air reaches the combustion chamber. This contributes to the overall efficiency and longevity of the truck’s engine ¹.

Basic Concepts of Air Cleaners

An air cleaner, also known as an air filter, is a device that removes contaminants from the air in a system to improve engine performance and protect internal components. In the context of a truck’s engine system, the air cleaner plays a role by trapping dust, dirt, and other particles that could otherwise cause damage or reduce efficiency. This ensures that the air entering the engine is as clean as possible, which is vital for maintaining optimal engine operation ².

Purpose of the Cummins 3903876 Air Cleaner

This Cummins part is specifically engineered to provide effective air filtration for commercial trucks. It contributes to engine performance by ensuring that the air entering the engine is free from contaminants. This helps in maintaining the engine’s efficiency and extends its operational life by preventing the accumulation of debris that could lead to wear and tear ³.

Key Features

This part boasts several key features that enhance its functionality. Its design incorporates a high-efficiency filtration media that captures a wide range of particle sizes. The materials used are durable and resistant to the harsh conditions often encountered in commercial trucking. Additionally, it features a secure mounting system that ensures a proper fit and seal, preventing unfiltered air from bypassing the filter.

Benefits

The Cummins 3903876 Air Cleaner offers several benefits. It contributes to improved engine efficiency by ensuring that the air-fuel mixture is optimized. This can lead to better fuel economy and reduced emissions. Additionally, by keeping the engine clean, it helps in reducing maintenance costs and enhances the durability of the engine components.

Installation Process

Installing this Cummins part involves several steps to ensure proper fit and function. Begin by disconnecting the negative battery cable to prevent any electrical issues. Remove the old air cleaner assembly, taking care to note the orientation and connections. Place the new Cummins 3903876 Air Cleaner in the same position, ensuring all connections are secure. Finally, reconnect the battery and test the system to confirm proper installation.

Troubleshooting Common Issues

Common issues with air cleaners include reduced airflow, which can be caused by a clogged filter or improper installation. To address these problems, regularly inspect the air cleaner for signs of damage or clogging. If airflow is restricted, replace the filter as necessary and ensure that the air cleaner is properly installed and sealed.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 3903876 Air Cleaner, regular maintenance is recommended. This includes periodic inspection of the air cleaner for signs of wear or damage. The filter should be replaced according to the manufacturer’s guidelines or when signs of clogging are observed. Keeping the air cleaner and its surroundings clean will also contribute to its effective operation.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and related technologies. With a history of innovation and a strong reputation in the commercial truck industry, Cummins is known for producing reliable and high-performance components that meet the demanding needs of commercial transportation.

Cummins Air Cleaner Part 3903876 Compatibility

The Cummins air cleaner part number 3903876 is designed to fit seamlessly with a variety of Cummins engine models. This part is engineered to ensure optimal air filtration and engine performance across different engine configurations.

Engine Compatibility

• 6B5.9 Engines

  • The 3903876 air cleaner is specifically tailored to integrate with the 6B5.9 engine series. This compatibility ensures that the air cleaner provides the necessary filtration and airflow to maintain engine efficiency and longevity.

• 6C8.3 Engines

  • Similarly, the 3903876 air cleaner is also compatible with the 6C8.3 engine series. This part is designed to fit the unique requirements of the 6C8.3 engines, ensuring that it delivers the required air filtration and contributes to the engine’s overall performance.

Installation and Performance

When installing the Cummins air cleaner part number 3903876, it is crucial to follow the manufacturer’s guidelines to ensure proper fitment and function. This air cleaner is designed to enhance the engine’s air intake system, providing clean and filtered air to the engine, which is essential for maintaining optimal performance and reducing wear and tear.

Role of Part 3903876 Air Cleaner in Engine Systems

The air cleaner, specifically part 3903876, is an integral component in maintaining the efficiency and longevity of engine systems. Its primary function is to filter incoming air before it enters the engine’s combustion chamber. This filtration process removes contaminants such as dust, dirt, and other particulates that could otherwise cause wear and tear on engine components.

When the air cleaner effectively filters the air, it ensures that the air-fuel mixture entering the engine is clean. This clean mixture is essential for optimal combustion, which directly influences engine performance and fuel efficiency. The air cleaner works in conjunction with the intake manifold, where the filtered air is mixed with fuel before being introduced into the cylinders.

Additionally, the air cleaner plays a role in maintaining the health of other engine components. By preventing contaminants from entering the engine, it reduces the likelihood of deposits forming on critical parts such as the valves, pistons, and cylinders. This, in turn, helps in preserving the engine’s overall efficiency and reducing the frequency of required maintenance.

Conclusion

In summary, the Cummins 3903876 Air Cleaner is a key component in the engine system, ensuring that the air entering the engine is clean and contributing to the engine’s performance, efficiency, and longevity. Regular maintenance and proper installation are essential to maximize the benefits of this part.