4940505
Air Cleaner
Cummins®

The Cummins 4940505 Air Cleaner is a component designed for use in commercial trucks. Its purpose is to ensure that the air entering the engine is clean, thereby supporting efficient and reliable engine operation. This Cummins part is significant in maintaining the performance and longevity of truck engines by preventing contaminants from entering the engine system ¹.

Basic Concepts of Air Cleaners

An air cleaner, also known as an air filter, is a device that removes impurities from the air entering an engine. It functions by drawing air through a filtering medium that traps particles such as dust, dirt, and other contaminants. The importance of an air cleaner in the engine system of a truck lies in its ability to protect the engine’s internal components from wear and damage caused by these particles, ensuring smooth operation and efficiency ².

Purpose of the Cummins 4940505 Air Cleaner

This part plays a role in the operation of a truck by filtering the air intake. It ensures that only clean air reaches the engine, which is vital for combustion efficiency and engine health. By removing contaminants, it helps maintain optimal engine performance and reduces the risk of engine wear over time ³.

Key Features

The Cummins 4940505 Air Cleaner is characterized by several primary features. Its design incorporates a robust housing that protects the filter element. The materials used are chosen for their durability and effectiveness in harsh operating environments. Unique attributes may include a high-efficiency filter media that provides superior filtration while allowing for adequate airflow ⁴.

Benefits of Using the Cummins 4940505 Air Cleaner

Installing this Cummins part offers several advantages. It contributes to improved engine performance by ensuring cleaner air intake, which can lead to more efficient combustion. Additionally, it supports engine longevity by reducing the intake of contaminants that cause wear. Efficiency is also enhanced, as the engine operates more smoothly with a consistent supply of clean air.

Installation Process

Proper installation of the Cummins 4940505 Air Cleaner involves several steps. First, the old air cleaner, if present, should be removed. The new air cleaner should then be positioned according to the manufacturer’s instructions, ensuring a secure fit. Tools or additional parts required for installation may include basic hand tools for removal and replacement, and it is important to follow the specific guidelines provided by Cummins for this model.

Maintenance and Care

Regular maintenance and care of the Cummins 4940505 Air Cleaner are recommended to ensure optimal performance and longevity. This includes periodic inspection of the filter element for signs of clogging or damage, and replacement as necessary. Keeping the air cleaner housing clean and free of debris also contributes to the efficient operation of the air cleaner.

Troubleshooting Common Issues

Common problems associated with air cleaners can include reduced airflow due to a clogged filter, or leaks in the air cleaner housing. For the Cummins 4940505 model, troubleshooting steps may involve inspecting the filter element for blockages and ensuring that the air cleaner is properly sealed to the engine intake. Addressing these issues promptly can help maintain engine performance and efficiency.

Cummins Company Overview

Cummins Inc. is a corporation known for designing, manufacturing, and distributing engines and related technologies. Founded in 1919, Cummins has established itself as a leader in the automotive industry, with a broad product range that includes engines, filtration systems, and power generation equipment. Their commitment to innovation and quality has made them a trusted name in the commercial vehicle sector.

Cummins Air Cleaner Part 4940505 Compatibility

The Cummins Air Cleaner part 4940505 is designed to be compatible with a range of engines, ensuring optimal performance and efficiency. This air cleaner is engineered to fit seamlessly with the following engines:

• QSM11 CM570

When installed in these engines, the air cleaner part 4940505 provides several benefits, including improved air filtration, enhanced engine performance, and increased longevity of engine components. The design of the air cleaner ensures that it can effectively filter out contaminants and debris, protecting the engine from potential damage.

For engines within the same family or those that share similar specifications, the air cleaner part 4940505 is engineered to fit without requiring modifications. This compatibility makes it easier for technicians and operators to maintain and service these engines, ensuring that they continue to operate at peak efficiency.

Role of Part 4940505 Air Cleaner in Engine Systems

The air cleaner, specifically part 4940505, is a component in the engine system, working in concert with several other parts to ensure optimal engine performance.

Interaction with the Intake Manifold

The air cleaner is positioned upstream of the intake manifold. Its primary function is to filter incoming air, removing contaminants that could otherwise damage the engine. Clean air, devoid of particulates, is vital for the efficient operation of the intake manifold, which relies on a steady flow of uncontaminated air to mix with fuel for combustion.

Relationship with the Throttle Body

Downstream of the air cleaner is the throttle body. The air cleaner ensures that the air entering the throttle body is free from debris. This is important because the throttle body controls the amount of air that enters the engine, and any contaminants could interfere with its operation, leading to inefficient air-fuel mixture and potentially harming the engine over time.

Impact on the Mass Air Flow (MAF) Sensor

The MAF sensor measures the mass of air entering the engine. The air cleaner plays a significant role here by providing clean air, which allows the MAF sensor to accurately measure air flow. Accurate measurements are essential for the engine control unit (ECU) to make precise adjustments to the air-fuel ratio, ensuring efficient combustion and reducing emissions.

Contribution to the Engine’s Overall Efficiency

By providing clean air, the air cleaner contributes to the engine’s overall efficiency. It helps maintain the integrity of other components such as the fuel injectors and combustion chambers by preventing the ingress of contaminants. This leads to smoother engine operation, better fuel economy, and reduced wear on engine components.

Support for the Positive Crankcase Ventilation (PCV) System

The PCV system relies on a steady flow of clean air to function correctly. The air cleaner ensures that the air entering the PCV system is free from contaminants, which helps in venting crankcase gases effectively and maintaining a clean crankcase environment.

Enhancement of the Oxygen Sensor’s Performance

The oxygen sensor monitors the exhaust gases to determine the air-fuel ratio. Clean air from the air cleaner ensures that the oxygen sensor operates in an uncontaminated environment, leading to accurate readings and better engine performance.

Conclusion

In summary, the Cummins 4940505 Air Cleaner is integral to the engine system, working alongside various components to ensure a clean air supply, which is fundamental for the efficient and reliable operation of the engine. Regular maintenance and proper installation are key to maximizing the benefits of this part.