3032693
Expansion Plug
Cummins®

Introduction

The Cummins 3032693 Expansion Plug is a component designed for use in commercial trucks. It serves a specific function within the truck’s system, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and role is fundamental for maintaining and optimizing truck performance.

Basic Concepts of Expansion Plugs

An expansion plug is a device used to seal openings in various systems, expanding to fill the space and create a tight seal. In automotive and industrial applications, these plugs are essential for preventing leaks and maintaining system integrity. They are commonly used in engines, cooling systems, and other areas where sealing is necessary to ensure proper operation ¹.

Role and Function of the 3032693 Expansion Plug

The Cummins 3032693 Expansion Plug is specifically designed to fit into designated openings within a truck’s system. Its primary function is to provide a secure seal, preventing the escape of fluids or gases. This plug interacts with other components by fitting into pre-drilled holes, expanding upon installation to create a barrier that maintains system pressure and prevents contamination ².

Key Features

The Cummins 3032693 Expansion Plug is constructed from materials that offer durability and resistance to the harsh conditions found in commercial truck environments. Its design includes features that allow for easy installation and reliable expansion, ensuring a consistent seal. Unique characteristics of this plug may include a specific expansion mechanism that adapts to the size of the opening, providing a custom fit for each application ³.

Benefits

The use of the Cummins 3032693 Expansion Plug offers several advantages. It enhances sealing efficiency, reducing the risk of leaks that could lead to system failure or inefficiency. The plug’s durable construction ensures longevity, even under demanding operating conditions. Additionally, its reliable performance contributes to the overall reliability and safety of the truck.

Troubleshooting and Maintenance

Common issues with expansion plugs may include improper sealing due to incorrect sizing or damage to the plug. Troubleshooting these problems involves checking the fit of the plug within the opening and inspecting for signs of wear or damage. Maintenance practices for ensuring optimal performance include regular inspection of the plug and its surrounding area for any signs of leakage or deterioration, and replacing the plug as necessary to maintain system integrity.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a broad product range that includes diesel and natural gas engines, as well as related technologies, Cummins has established a strong reputation in the commercial truck industry for quality, innovation, and reliability. The company’s commitment to excellence is reflected in its products, including the Cummins 3032693 Expansion Plug, which is designed to meet the demanding requirements of commercial truck applications.

Compatibility of Expansion Plug Part 3032693 with Cummins Engines

The Expansion Plug part 3032693, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is essential for maintaining the integrity of the engine’s cooling system by preventing leaks and ensuring proper thermal expansion. Below is a detailed breakdown of the engines with which this expansion plug is compatible:

ISC Series Engines

• ISC CM2150
• ISC CM554
• ISC CM850
• ISC8.3 CM2250

ISL Series Engines

• ISL CM2150
• ISL CM554
• ISL G CM2180
• ISL9 CM2150 SN
• ISL9 CM2250
• ISL9.5 CM2880 L138

L Series Engines

• L10 GAS
• L10 MECHANICAL
• L8.9
• L8.9 CM2670 L134C
• L8.9 L121
• L9 CM2670 L128B
• L9.5 L117

QSC and QSL Series Engines

• QSC8.3 CM2880 C102
• QSC8.3 CM554
• QSC8.3 CM850(CM2850)
• QSC9 CM2250/QSL9 CM2250
• QSL8.9 CM2150 L141

By ensuring that the expansion plug part 3032693 is compatible with a wide range of Cummins engines, it provides a reliable solution for maintaining the integrity of the cooling system across various engine models. This compatibility is crucial for the overall performance and longevity of the engines, making the expansion plug a vital component for engine maintenance.

Role of Part 3032693 Expansion Plug in Engine Systems

The expansion plug, identified by part number 3032693, is an essential component in various engine systems, ensuring optimal performance and safety. Its role is multifaceted, contributing to the functionality of several key components.

Interaction with the Camshaft and Cylinder Head

In engines equipped with a camshaft and cylinder head, the expansion plug helps maintain the integrity of the combustion chamber. It prevents any unwanted expansion of gases that could damage the camshaft or cylinder head, ensuring smooth operation and longevity of these components.

Support for the Connecting Rod and Piston Assembly

Within the connecting rod and piston assembly, the expansion plug plays a part in maintaining the pressure balance. This balance is vital for the efficient transfer of power from the piston to the crankshaft, enhancing the engine’s overall performance.

Integration with the Cylinder Head Without Valves

For engines featuring a cylinder head without valves, the expansion plug is instrumental in regulating the pressure within the combustion chamber. This regulation is key to preventing damage to the cylinder head and ensuring consistent engine operation.

Contribution to the Engine Oil Cooler and Lubricating Oil Systems

In the engine oil cooler and various lubricating oil systems, including the lubricating oil cooler, lubricating oil filter head, and lubricating oil top-level assembly support, the expansion plug aids in maintaining the correct pressure levels. This ensures the efficient circulation of oil, which is crucial for lubrication and cooling of engine components.

Role in the Flywheel Housing and Related Assemblies

The expansion plug is also significant in the flywheel housing, flywheel top-level assembly housing, and other flywheel-related components. It assists in stabilizing the pressure within these assemblies, which is essential for the smooth operation of the flywheel and, consequently, the engine’s rotational dynamics.

Function in the Fuel Manifold and Injector Systems

In fuel manifold and injector systems, the expansion plug helps in maintaining the desired fuel pressure. This is important for the precise delivery of fuel to the combustion chamber, directly influencing the engine’s fuel efficiency and power output.

Application in Overhaul and Performance Kits

In overhaul kits and performance parts, the expansion plug is a component that ensures the engine’s components are operating under the correct pressure conditions. This is particularly important in high-performance engines where even minor pressure variations can significantly affect engine performance.

Utility in Specialized Kits

For specialized kits like the rear power take-off kit and short engine kit, the expansion plug ensures that the unique demands of these systems are met. It contributes to the stability and efficiency of these kits, which are often used in specific applications requiring tailored engine performance.

Conclusion

In summary, the expansion plug (part 3032693) is a versatile component that enhances the functionality and reliability of various engine systems. Its role in pressure regulation and maintenance is indispensable for the efficient operation of these systems.