3094064
Expansion Plug
Cummins®

Introduction

The Cummins 3094064 Expansion Plug is a critical component for heavy-duty truck systems. It is designed to seal openings within the engine or cooling system, ensuring that fluids remain contained and systems operate efficiently. This part is essential for maintaining the integrity of the engine’s various subsystems.

Basic Concepts of Expansion Plugs

An expansion plug is a sealing device used in automotive and industrial applications. It functions by expanding within a hole to create a tight seal, preventing the escape of fluids or gases. These plugs are commonly used in engine blocks, radiators, and other components where sealing is necessary to maintain system pressure and efficiency. The expansion mechanism ensures a secure fit that can withstand high temperatures and pressures ¹.

Purpose of the Cummins 3094064 Expansion Plug

The Cummins 3094064 Expansion Plug is designed to seal openings in the engine block or cooling system, preventing coolant or other fluids from leaking out. This function is vital for maintaining the proper pressure and temperature within the system, which ensures efficient engine operation and longevity of the components ².

Key Features

The Cummins 3094064 Expansion Plug is constructed from high-quality materials that can withstand the extreme conditions within a heavy-duty engine. Its design includes an expansion mechanism that allows the plug to fit securely into place, providing a reliable seal. Additionally, the plug may feature corrosion-resistant properties to ensure durability over time ³.

Benefits

Utilizing the Cummins 3094064 Expansion Plug offers several advantages. It contributes to improved system efficiency by ensuring that fluids remain contained within the engine and cooling system. The durable construction and reliable sealing mechanism enhance the overall reliability of the truck’s engine. Furthermore, the plug’s design helps to maintain system pressure, which is crucial for optimal engine performance.

Installation Process

Installing the Cummins 3094064 Expansion Plug requires careful attention to detail. Begin by ensuring the hole is clean and free of debris. Insert the plug into the designated opening and use the appropriate tool to expand it into place. It is important to follow the manufacturer’s guidelines to ensure a proper fit and seal. Additional components, such as gaskets or seals, may be required depending on the specific application.

Troubleshooting and Maintenance

Common issues with expansion plugs include leaks due to improper installation or wear over time. To diagnose problems, inspect the plug and surrounding areas for signs of fluid leakage or corrosion. Regular maintenance involves checking the integrity of the seal and replacing the plug if signs of wear or damage are present. Proper installation and periodic inspections can help ensure the longevity and optimal performance of the expansion plug.

Safety Considerations

When handling and installing the Cummins 3094064 Expansion Plug, it is important to observe several safety practices. Wear personal protective equipment, such as gloves and safety glasses, to protect against potential hazards. Ensure that the engine is cool before beginning any work to avoid burns. Additionally, perform system checks to verify that the plug is installed correctly and that there are no leaks after installation.

Cummins Overview

Cummins Inc. is a renowned manufacturer with a rich history in the automotive industry, particularly in heavy-duty truck components. The company offers a wide range of products designed to enhance the performance and reliability of engines. Cummins is known for its commitment to quality and innovation, providing solutions that meet the demanding requirements of heavy-duty applications.

Expansion Plug 3094064 Compatibility with Cummins Engines

The Cummins Expansion Plug part number 3094064 is designed to fit a variety of Cummins engines, ensuring a secure and reliable seal in the engine’s expansion system. This part is crucial for maintaining the integrity of the engine’s cooling system and preventing leaks.

B3.3 Series Engines

The B3.3 engine series benefits from the 3094064 expansion plug, which is engineered to fit seamlessly into the engine’s design. This plug is essential for maintaining the proper pressure and temperature within the engine’s cooling system.

QSB3.3 Series Engines

For the QSB3.3 series, including the CM2150 and CM2250 EC variants, the 3094064 expansion plug is a critical component. It ensures that the cooling system operates efficiently, preventing any potential leaks that could compromise engine performance.

QST30 Series Engines

The QST30 series engines, specifically the CM2350 T101 and CM552 variants, also utilize the 3094064 expansion plug. This part is designed to fit the unique requirements of these engines, providing a reliable seal that is essential for maintaining the engine’s cooling system integrity.

Role of Part 3094064 Expansion Plug in Engine Systems

The part 3094064 Expansion Plug is an essential component in various engine systems, facilitating the secure sealing of openings within the engine structure. Its application spans across several key components, ensuring the integrity and efficiency of the engine’s operation.

Cylinder Block

In the cylinder block, the Expansion Plug is utilized to seal off unused or redundant passages. This prevents coolant or oil from leaking into areas where it could cause damage or reduce engine efficiency. By maintaining the proper fluid levels and pathways, the plug contributes to the overall stability and performance of the engine.

Cylinder Block Hardware Kit and Cylinder Block Kit

When assembling or repairing the cylinder block using a hardware kit or a complete block kit, the Expansion Plug plays a role in ensuring that all passages are correctly sealed. This is particularly important in preventing cross-contamination between different fluid systems within the engine, such as oil and coolant.

Cylinder Head and Cylinder Head Kit

In the cylinder head and cylinder head kit, the Expansion Plug is used to seal off coolant galleries or oil passages that are not in use. This ensures that the fluids remain within their designated pathways, optimizing the thermal management and lubrication of the engine components.

Camshaft

The Expansion Plug may also be employed in the camshaft housing to seal off any unnecessary openings. This helps in maintaining the precise oil flow required for lubricating the camshaft and its associated components, thereby enhancing the durability and performance of the camshaft.

Connecting Rod and Piston

In the connecting rod and piston assembly, the Expansion Plug is used to seal off any passages that do not require fluid flow. This ensures that the lubrication system operates efficiently, providing the necessary oil to critical moving parts without leakage.

Injector Plumbing

Within the injector plumbing system, the Expansion Plug is used to seal off any unused injector ports. This prevents fuel from leaking into areas where it is not required, ensuring that the fuel delivery system operates with maximum efficiency and minimal risk of contamination.

Performance Parts

In performance-enhanced engine systems, the Expansion Plug is often used to seal off additional passages that may have been created during modifications. This ensures that the high-performance fluids, such as specialized oils or coolants, are directed precisely where needed, enhancing the engine’s power output and reliability.

Conclusion

Overall, the part 3094064 Expansion Plug is a versatile component that plays a significant role in maintaining the integrity and efficiency of various engine systems. Its proper application ensures that fluids remain within their designated pathways, contributing to the optimal performance and longevity of the engine.