3094028
Expansion Plug
Cummins®

The Cummins 3094028 Expansion Plug is a component designed for use in heavy-duty truck systems. Its purpose is to provide a secure seal in various applications within these systems, ensuring the integrity and efficiency of the truck’s operation.

Basic Concepts of Expansion Plugs

An expansion plug is a device used to create a tight seal in hollow spaces, such as in engine blocks or cooling systems. It functions by expanding upon insertion into a pre-drilled hole, creating a secure fit that prevents leaks and maintains system pressure. In automotive systems, expansion plugs are commonly used to seal off unused ports or passages, ensuring that fluids and gases remain contained within their designated pathways ¹.

Purpose of the Cummins 3094028 Expansion Plug

The Cummins 3094028 Expansion Plug plays a specific role in the operation of heavy-duty trucks by sealing off certain areas within the engine or cooling system. This seal helps maintain system pressure and prevents the escape of fluids or gases, contributing to the overall efficiency and reliability of the truck’s engine performance.

Key Features

The Cummins 3094028 Expansion Plug is characterized by several key features that enhance its performance. It is made from durable materials that can withstand high temperatures and pressures commonly found in heavy-duty truck engines. The design of the plug allows it to expand securely within the designated hole, providing a reliable seal. Additionally, it is engineered to be easy to install and remove when necessary, facilitating maintenance procedures.

Benefits

Using the Cummins 3094028 Expansion Plug offers several benefits. It contributes to improved system efficiency by ensuring that fluids and gases remain within their intended pathways. The plug’s durable construction enhances the overall reliability of the truck’s engine system, reducing the likelihood of leaks or failures. Furthermore, its secure seal helps maintain system pressure, which is vital for optimal engine performance.

Installation Process

Installing the Cummins 3094028 Expansion Plug involves several steps to ensure a proper fit and secure seal. First, the designated hole must be cleaned and inspected for any debris or damage. The plug is then inserted into the hole and expanded using the appropriate tools, such as a specialized expansion tool or hammer. Care must be taken to ensure that the plug is fully expanded and seated correctly to achieve the desired seal.

Troubleshooting Common Issues

Common problems associated with expansion plugs include improper seating, which can lead to leaks, and difficulty in removal during maintenance. To address these issues, it is important to ensure that the plug is correctly installed and fully expanded. If removal is necessary, using the appropriate tools and techniques can help avoid damage to the plug or surrounding components.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins 3094028 Expansion Plug, regular maintenance is recommended. This includes periodic inspection of the plug for signs of wear or damage, as well as ensuring that it remains securely seated. Additionally, keeping the surrounding area clean and free of debris can help prevent issues related to contamination or blockage.

Role in Engine or Cooling System

The Cummins 3094028 Expansion Plug interacts with other components within the engine or cooling system by providing a secure seal in designated areas. This seal helps maintain system pressure and prevents the escape of fluids or gases, contributing to the overall functionality and efficiency of the engine. By ensuring that these pathways remain sealed, the plug plays a role in supporting the engine’s performance and reliability.

Compatibility of Expansion Plug Part 3094028 with Cummins Engines

The Expansion Plug part 3094028, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines. This part is integral to the engine’s cooling system, ensuring optimal thermal management and performance. Here’s how it fits with the specified engines:

B3.3 Series

• B3.3: The Expansion Plug part 3094028 is compatible with the B3.3 engine, ensuring efficient coolant flow and thermal regulation.

QSB3.3 Series

• QSB3.3 CM2150: This engine model benefits from the precise fit of the Expansion Plug part 3094028, which helps maintain the integrity of the cooling system.
• QSB3.3 CM2250 EC: The EC variant of the QSB3.3 series also utilizes the Expansion Plug part 3094028, ensuring the engine operates within its optimal temperature range.

QST30 Series

• QST30 CM2350 T101: The Expansion Plug part 3094028 is engineered to fit this engine model, providing essential support to the cooling system.
• QST30 CM552: This engine model is another beneficiary of the Expansion Plug part 3094028, ensuring the cooling system functions correctly and efficiently.

The Expansion Plug part 3094028 is a critical component that ensures the longevity and performance of these engines by maintaining the structural integrity of the cooling system. Its compatibility across these engine models underscores its versatility and importance in Cummins’ engine lineup.

Role of Part 3094028 Expansion Plug in Engine Systems

The part 3094028 Expansion Plug is an essential component in various engine systems, ensuring the efficient operation and longevity of the engine. It is strategically placed in several key areas to maintain system integrity and performance.

Integration with Cam Follower Assembly

In the cam follower assembly, the expansion plug plays a role in sealing and maintaining the structural integrity of the assembly. It prevents any unwanted leakage of lubricants or coolant, ensuring that the cam followers operate smoothly and efficiently.

Function in Coolant Heater Starting Aid

When integrated with the coolant heater starting aid, the expansion plug helps in maintaining the pressure within the system. This is vital for the effective operation of the starting aid, especially in cold conditions where the coolant needs to be heated efficiently to facilitate easier engine start-ups.

Role in Cylinder Block and Cylinder Block Kit

In the cylinder block and cylinder block kit, the expansion plug is used to seal off unused passages or holes. This ensures that the cylinder block maintains its structural integrity and that there is no leakage of coolant or oil, which could compromise engine performance.

Application in Full Flow Oil Filter and Lubricating Oil Filter

For the full flow oil filter and lubricating oil filter, the expansion plug is utilized to seal off bypass passages when they are not in use. This ensures that the oil filtration process is efficient, with the oil passing through the filter media as intended, thereby maintaining clean oil circulation within the engine.

Use in Oil Transfer Connection

In the oil transfer connection, the expansion plug ensures that the connection is sealed properly. This prevents any oil leakage during the transfer process, maintaining the efficiency of the oil circulation system within the engine.

Importance in Product Installation Package

Within the product installation package, the expansion plug is often included to ensure that all components are properly sealed during the installation process. This is important for the initial setup of the engine, ensuring that all systems are leak-free and operating efficiently from the start.

Function in Thermostat Housing

Finally, in the thermostat housing, the expansion plug helps in maintaining the pressure and temperature within the housing. This is essential for the accurate operation of the thermostat, ensuring that the engine operates within the optimal temperature range for efficiency and longevity.

Conclusion

The Cummins 3094028 Expansion Plug is a vital component in heavy-duty truck systems, providing secure seals that maintain system pressure and prevent leaks. Its durable construction and ease of installation contribute to the overall efficiency and reliability of the engine. Regular maintenance and proper installation are key to ensuring the longevity and optimal performance of this Cummins part.

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