3008956
Expansion Plug
Cummins®

The Cummins 3008956 Expansion Plug is a component designed to maintain the integrity of commercial truck systems. Its purpose is to ensure that the engine operates efficiently by preventing coolant leaks and maintaining system pressure. This part is significant in the context of commercial truck maintenance and operation, as it contributes to the overall reliability and performance of the vehicle ¹.

Basic Concepts of Expansion Plugs

An expansion plug is a device used in automotive and heavy-duty truck systems to seal openings in various components. It functions by expanding to fill the space it occupies, creating a tight seal that prevents fluid leaks and maintains system pressure. These plugs are commonly used in engine and cooling systems to ensure that fluids remain contained within their designated pathways ².

Purpose of the 3008956 Expansion Plug

The Cummins 3008956 Expansion Plug plays a specific role in the operation of a truck by sealing openings in the engine or cooling system. It is typically placed in locations where coolant pathways intersect with the engine block or other components. By creating a secure seal, it helps to maintain the integrity of the cooling system, ensuring that coolant circulates effectively to regulate engine temperature ³.

Key Features

The Cummins 3008956 Expansion Plug is characterized by several key features that enhance its performance. It is made from durable materials that can withstand the high temperatures and pressures found in engine systems. The design includes an expansion mechanism that allows the plug to adapt to the specific dimensions of the opening it seals, ensuring a tight fit. Additionally, the plug is engineered to resist corrosion, which is crucial for longevity in a harsh operating environment.

Benefits

The benefits provided by the Cummins 3008956 Expansion Plug include improved system integrity, enhanced performance, and longevity of the truck’s components. By preventing coolant leaks, it helps to maintain the efficiency of the cooling system, which in turn supports optimal engine operation. The durable construction and corrosion resistance of the plug contribute to its long-term reliability, reducing the need for frequent replacements.

Installation Process

Proper installation of the Cummins 3008956 Expansion Plug involves several steps to ensure correct fitting. Begin by identifying the location where the plug will be installed. Clean the area thoroughly to remove any debris or old sealant. Insert the plug into the opening, ensuring it is seated correctly. Use the appropriate tools to expand the plug, creating a secure seal. Verify the installation by checking for any signs of leakage or improper fit.

Troubleshooting Common Issues

Common problems associated with expansion plugs include leaks and improper sealing. These issues can arise from incorrect installation, damage to the plug, or corrosion. To address these problems, first, inspect the plug for signs of wear or damage. If the plug is damaged, replace it with a new one. Ensure that the installation process is followed correctly to achieve a proper seal. Regular maintenance and inspection can help prevent these issues.

Maintenance Tips

To ensure optimal performance of the Cummins 3008956 Expansion Plug, regular maintenance is recommended. Inspect the plug during routine engine checks for signs of wear, corrosion, or leaks. If any issues are detected, address them promptly to prevent further damage. Additionally, ensure that the plug is correctly installed and seated to maintain system integrity.

Role in Engine Cooling System

The Cummins 3008956 Expansion Plug contributes to the engine cooling system by preventing coolant leaks and maintaining system pressure. It seals openings in the engine block and cooling pathways, ensuring that coolant circulates effectively to regulate engine temperature. This role is vital for the efficient operation of the cooling system and the overall performance of the engine.

Compatibility of Expansion Plug Part 3008956 with Cummins Engines

The Expansion Plug part 3008956, manufactured by Cummins, is designed to fit seamlessly with several of their engine models. This part is crucial for maintaining the integrity of the engine’s cooling system by ensuring that the expansion and contraction of the coolant do not cause leaks or damage.

L10 MECHANICAL Engines

The L10 MECHANICAL engine is a robust and reliable power unit, often used in heavy-duty applications. The Expansion Plug part 3008956 is specifically engineered to fit this engine model, ensuring that it can handle the thermal stresses and pressures inherent in such demanding environments. Its precise fitment guarantees that the engine’s cooling system operates efficiently, preventing any potential issues related to coolant expansion.

N14 MECHANICAL Engines

Similarly, the N14 MECHANICAL engine benefits from the use of the Expansion Plug part 3008956. This engine is known for its durability and high performance, making it a popular choice in various industrial applications. The expansion plug ensures that the engine’s cooling system can manage the thermal cycles effectively, thereby extending the engine’s lifespan and maintaining its performance.

NH/NT 855 Engines

The NH/NT 855 engines also require the Expansion Plug part 3008956 for optimal performance. These engines are designed for versatility and efficiency, often used in agricultural and construction machinery. The expansion plug’s compatibility with these engines ensures that the cooling system can handle the unique thermal demands of these applications, providing reliable operation and reducing the risk of coolant-related failures.

By ensuring a precise fit with these engines, the Expansion Plug part 3008956 plays a vital role in maintaining the overall health and performance of the engine’s cooling system.

Role of Part 3008956 Expansion Plug in Engine Systems

The part 3008956 Expansion Plug is integral to the efficient operation of several engine components. It ensures that the AFC-VS/Road Speed system maintains accurate fuel delivery by preventing unwanted pressure fluctuations. This stability is essential for the Code Fuel system, where precise fuel metering is required to meet emission standards and optimize engine performance.

In the Coupling system, the Expansion Plug helps maintain consistent fuel flow, which is vital for the seamless operation of the Fuel Pump. It works in tandem with the Emissions Rebuild Kit to ensure that the engine complies with environmental regulations by maintaining optimal fuel-air ratios.

The Fuel Base Pump relies on the Expansion Plug to regulate pressure, which in turn affects the performance of the Fuel Hardware. This regulation is also important for the Fuel Pump Option, where different fuel delivery settings may be required under varying operational conditions.

For the Pump and Fuel systems, the Expansion Plug ensures that the Fuel Injection process is smooth and efficient. It assists the Road Speed Governor in adjusting fuel delivery based on vehicle speed, thereby enhancing overall engine responsiveness and fuel economy.

Conclusion

In summary, the 3008956 Expansion Plug plays a significant role in maintaining the integrity and performance of these interconnected engine systems. Its proper installation, maintenance, and compatibility with various Cummins engines ensure efficient operation and longevity of the engine components.