3004259
Expansion Plug
Cummins®

Introduction

The Cummins 3004259 Expansion Plug is a component designed for use in commercial truck operations. Its purpose is to seal specific openings within the engine or cooling system, ensuring the system’s integrity and efficiency. The significance of this part lies in its ability to maintain system pressure and prevent leaks, which is vital for the reliable operation of commercial trucks.

Basic Concepts of Expansion Plugs

An expansion plug is a mechanical device used to seal openings in various systems. It functions by expanding within the hole it is inserted into, creating a tight seal. This type of plug is commonly used in automotive and industrial applications to prevent fluid or gas leakage, maintain system pressure, and protect against contaminants ¹.

Purpose of the 3004259 Expansion Plug

The Cummins 3004259 Expansion Plug plays a role in the operation of a truck by sealing specific ports within the engine or cooling system. This function helps maintain system pressure, prevent leaks, and ensure the efficient operation of the engine. By sealing these ports, the plug contributes to the overall reliability and performance of the truck ².

Key Features

The primary features of the Cummins 3004259 Expansion Plug include its material composition, which is designed to withstand high temperatures and pressures, and its precise design elements that ensure a secure fit within the designated ports. Unique characteristics such as corrosion resistance and durability enhance its performance and longevity ³.

Benefits

The advantages provided by the Cummins 3004259 Expansion Plug include improved system integrity through effective sealing, enhanced performance by maintaining system pressure, and increased longevity due to its durable construction. These benefits contribute to the reliable operation of commercial trucks and reduce the need for frequent maintenance ⁴.

Installation Process

Proper installation of the Cummins 3004259 Expansion Plug involves several steps. First, ensure the port is clean and free of debris. Next, insert the plug into the port and use the appropriate tool to expand it until it creates a secure seal. It is important to follow the manufacturer’s guidelines to ensure correct installation and optimal performance.

Troubleshooting and Maintenance

Common issues associated with expansion plugs include improper sealing, which can lead to leaks or system pressure loss. Diagnostic tips include checking for signs of leakage around the plug and ensuring it is properly expanded within the port. Regular maintenance practices, such as inspecting the plug for wear or damage, can help ensure optimal performance and longevity.

Safety Considerations

When handling and installing the Cummins 3004259 Expansion Plug, it is important to observe safety practices such as wearing protective gloves and eyewear. Additionally, ensure the engine is cool before attempting installation to avoid burns or injuries. Following these precautions helps maintain a safe working environment.

Cummins 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 and reliability in the commercial truck industry. Its product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of commercial operations.

Compatibility of Expansion Plug Part 3004259 with Cummins Engines

The Expansion Plug part 3004259, manufactured by Cummins, is designed to fit a variety of engine models. This part is crucial for maintaining the integrity of the engine’s cooling system by preventing leaks and ensuring proper sealing. Below is a detailed description of its compatibility with the listed engines:

GTA38 G CMEICS G116C

The Expansion Plug part 3004259 is compatible with the GTA38 G CMEICS G116C engine. This part ensures that the engine’s cooling system remains sealed and efficient, preventing any potential coolant leaks.

K19, K38, K50, KTA38GC CM558

For the K19, K38, K50, and KTA38GC CM558 engines, the Expansion Plug part 3004259 is engineered to fit seamlessly. This compatibility ensures that the cooling system’s integrity is maintained, which is vital for the engine’s optimal performance.

QSK45 CM500, QSK60 CM500, QSK60 CM850 MCRS

The Expansion Plug part 3004259 is also compatible with the QSK45 CM500, QSK60 CM500, and QSK60 CM850 MCRS engines. This part is essential for these engines as it helps in maintaining the cooling system’s efficiency and preventing leaks.

QSK60 G CM2358 K110, QSK60G, QSK78 CM500

For the QSK60 G CM2358 K110, QSK60G, and QSK78 CM500 engines, the Expansion Plug part 3004259 is designed to fit perfectly. This ensures that the cooling system remains sealed and operational, contributing to the engine’s overall performance.

V28

Lastly, the Expansion Plug part 3004259 is compatible with the V28 engine. This part is crucial for maintaining the cooling system’s integrity, ensuring that the engine operates efficiently and reliably.

Each of these engines benefits from the use of the Expansion Plug part 3004259, as it plays a critical role in maintaining the cooling system’s efficiency and preventing leaks. This compatibility ensures that the engines can perform optimally and reliably.

Role of Part 3004259 Expansion Plug in Engine Systems

The expansion plug, identified by part number 3004259, is integral to the functionality and safety of various engine components. Its primary role is to maintain system integrity by sealing and pressurizing specific areas within the engine. Here’s how it interacts with the provided components:

Block and Cylinder Block

Within the block and cylinder block, the expansion plug ensures that coolant and lubricating oil remain within their designated pathways. This prevents leaks and maintains the necessary pressure for efficient heat dissipation and lubrication.

Drive and Fan Support

In the drive and fan support systems, the expansion plug helps in maintaining the structural integrity of the cooling system. It ensures that the cooling fluid does not escape, which is vital for the fan to operate effectively in dissipating heat from the engine.

Filter and Lubricating Systems

For components like the filter, lubricating oil filter, lubricating oil duplex filter, and lubricating oil cooler and filter, the expansion plug plays a key role in keeping the filtration system sealed. This ensures that contaminants are effectively filtered out without any bypass, maintaining the purity of the lubricating oil.

On Board Spares and Spare Parts Kit

In the context of on board spares and spare parts kits, the expansion plug is often included to address potential leaks or failures in the field. Its presence in these kits underscores its importance in maintaining operational readiness.

Water Pump and Pump Kit

Within the water pump and pump kit, the expansion plug ensures that the coolant system remains pressurized. This is essential for the pump to circulate coolant efficiently, preventing overheating and ensuring consistent engine performance.

Lubricating Oil Cooler and Filter Assembly

The expansion plug is also vital in the lubricating oil cooler and filter assembly. It ensures that the oil remains within the system, allowing for effective cooling and filtration, which is crucial for prolonging the life of engine components.

Oil Filter / Cooler

In the oil filter / cooler setup, the expansion plug maintains the necessary pressure differentials that allow the cooler to function optimally. This ensures that the oil is adequately cooled before re-entering the lubrication circuit.

Engine Installation Kit

During engine installation, the expansion plug is a key component in ensuring that all fluid systems are correctly sealed. This is important for the initial startup and subsequent operation of the engine.

The expansion plug, part 3004259, thus serves as a fundamental component in maintaining the integrity and efficiency of various engine systems. Its role in sealing and pressurizing is indispensable for the reliable operation of the engine.

Conclusion

The Cummins 3004259 Expansion Plug is a critical component in the maintenance and operation of commercial truck engines. Its role in sealing and pressurizing various engine systems ensures the integrity and efficiency of the engine, contributing to the reliable operation of commercial trucks. Proper installation, regular maintenance, and adherence to safety practices are essential for maximizing the benefits of this part.