3922073
Expansion Plug
Cummins®

The Cummins 3922073 Expansion Plug is a critical component in the maintenance and operation of heavy-duty trucks. It is designed to seal specific openings within the engine or cooling system, contributing to the vehicle’s efficiency and reliability. Understanding its function and importance is essential for maintaining optimal performance in heavy-duty trucks.

Basic Concepts of Expansion Plugs

An expansion plug is a device used in automotive and industrial applications to seal openings in various systems. It functions by expanding to fill the space it is inserted into, creating a tight seal that prevents leaks or the ingress of contaminants. These plugs are commonly used in engine and cooling systems to maintain system integrity and efficiency ¹.

Purpose of the Cummins 3922073 Expansion Plug

The Cummins 3922073 Expansion Plug plays a role in the operation of heavy-duty trucks by sealing specific openings within the engine or cooling system. Its function is to ensure that these systems remain sealed, which helps in maintaining pressure, preventing leaks, and protecting the system from external contaminants. This contributes to the overall performance and longevity of the truck’s engine ².

Key Features

The Cummins 3922073 Expansion Plug is characterized by several key features that enhance its performance and durability. It is made from materials that are resistant to high temperatures and corrosion, ensuring longevity in demanding environments. Its design includes elements that allow for secure fitting and easy installation, while also providing a reliable seal. Unique attributes may include a specific expansion mechanism that ensures a tight fit in the designated opening ³.

Benefits

Using the Cummins 3922073 Expansion Plug offers several advantages. It contributes to improved system integrity by providing a reliable seal that prevents leaks and maintains system pressure. This can lead to enhanced performance of the engine or cooling system. Additionally, the durability of the plug ensures longevity, reducing the need for frequent replacements and contributing to the overall efficiency of the vehicle.

Installation Process

Installing the Cummins 3922073 Expansion Plug requires following a specific procedure to ensure correct fitting and function. The process involves cleaning the area where the plug will be installed, inserting the plug into the opening, and then expanding it to create a seal. Tools may be required to facilitate the expansion process, ensuring that the plug fits securely without damaging the surrounding components.

Troubleshooting Common Issues

Common problems associated with expansion plugs can include leaks, difficulty in installation, or failure to create a secure seal. These issues may arise from incorrect installation, damage to the plug, or environmental factors. Troubleshooting steps may involve inspecting the plug and the area around it for signs of damage or wear, ensuring correct installation procedures are followed, and replacing the plug if necessary.

Maintenance Tips

Regular maintenance of the Cummins 3922073 Expansion Plug is important to ensure its continued performance and longevity. This includes routine inspections to check for signs of wear or damage, cleaning the plug and surrounding areas to prevent the buildup of contaminants, and replacing the plug if it shows signs of failure or if leaks are detected. Adhering to these maintenance practices can help in maintaining the efficiency of the engine or cooling system.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality, innovation, and reliability in the automotive and industrial sectors. The company’s product range includes engines and components for heavy-duty trucks, among other applications, demonstrating its commitment to providing solutions that meet the demands of various industries.

Compatibility of Expansion Plug 3922073 with Cummins Engines

The Expansion Plug 3922073, manufactured by Cummins, is designed to fit seamlessly with a variety of Cummins engines. This part is crucial for maintaining the integrity of the engine’s cooling system, ensuring that there are no leaks or inefficiencies that could compromise performance.

ISV (Nissan)

The ISV engine, while branded under Nissan, utilizes Cummins technology and shares many components with other Cummins engines. The Expansion Plug 3922073 is compatible with this engine, providing a reliable seal in the cooling system.

ISX15 CM2250 and ISX15 CM2350 X101

Both the ISX15 CM2250 and ISX15 CM2350 X101 engines benefit from the use of the Expansion Plug 3922073. This part ensures that the cooling system remains efficient and leak-free, which is essential for maintaining the engine’s optimal operating temperature.

QSX15 CM2250 and QSX15 CM2250 ECF

The QSX15 CM2250 and QSX15 CM2250 ECF engines also require the Expansion Plug 3922073 for proper function. This plug is designed to fit these models, ensuring that the cooling system operates without any issues.

QSX15 CM2350 X105

Finally, the QSX15 CM2350 X105 engine is another model that is compatible with the Expansion Plug 3922073. This part is essential for maintaining the cooling system’s efficiency and preventing leaks, ensuring the engine runs smoothly.

Role of Part 3922073 Expansion Plug in Engine Systems

The 3922073 Expansion Plug is an essential component in various engine systems, facilitating efficient operation and maintenance. Its application spans across several key components, each playing a distinct role in the engine’s functionality.

Air Flow Metering Orifice

In the air flow metering orifice, the 3922073 Expansion Plug ensures precise air measurement. This is vital for the engine control unit (ECU) to deliver the correct air-fuel mixture, optimizing combustion efficiency and reducing emissions.

Exhaust Recirculation Air System

Within the exhaust recirculation air (EGR) system, the expansion plug aids in managing the flow of exhaust gases recirculated into the intake manifold. This process helps in reducing nitrogen oxides (NOx) emissions, contributing to a cleaner combustion process.

Engine Block and Cylinder

In the engine block and cylinder, the 3922073 Expansion Plug is used to seal off unused passages or holes. This prevents coolant or oil leakage, maintaining the integrity of the engine’s lubrication and cooling systems.

Cylinder Block Stiffener

The expansion plug reinforces the cylinder block stiffener by filling voids or unnecessary channels. This enhancement contributes to the structural rigidity of the cylinder block, ensuring stable engine operation under varying loads.

Fuel Line Kit

In fuel line kits, the expansion plug is employed to cap off ends or junctions within the fuel lines. This prevents fuel leakage and ensures that the fuel delivery system remains pressurized and efficient.

Long Block Kit

Within long block kits, the expansion plug is utilized to seal off areas where components may have been removed or are not in use. This ensures that the long block remains a sealed unit, ready for integration into the engine assembly.

Multiple Function Lubrication Housing

In the multiple function lubrication housing, the expansion plug helps in directing oil flow to critical engine components. By sealing off non-essential pathways, it ensures that lubrication is efficiently distributed, reducing wear and enhancing engine longevity.

Oil Pan and Pan

The expansion plug is also crucial in the oil pan and pan assemblies. It seals off any unnecessary openings, ensuring that the oil remains contained within the pan. This is essential for maintaining proper oil levels and pressure within the engine.

Exhaust Recirculation

In the broader context of exhaust recirculation, the expansion plug plays a role in managing the recirculation of exhaust gases. This not only helps in emission control but also in maintaining optimal engine temperature and performance.

Conclusion

The 3922073 Expansion Plug, through its versatile applications, significantly contributes to the efficiency, reliability, and performance of various engine components. Its role in sealing, directing flows, and reinforcing structures is indispensable in modern engine systems.