3042004
Threaded Plug
Cummins®

Introduction

The Cummins 3042004 Threaded Plug is a component designed for use in commercial trucks. Its purpose is to seal openings in various parts of the truck’s engine and other systems, preventing the escape of fluids and gases. This plug is integral to maintaining the integrity of the truck’s systems, ensuring efficient operation and reducing the risk of leaks that could lead to performance issues or safety hazards.

Basic Concepts of Threaded Plugs

Threaded plugs are mechanical components used to seal threaded holes in equipment and machinery. They function by being screwed into place, creating a tight seal that prevents the passage of fluids or gases. These plugs are commonly used in a variety of applications, including automotive, industrial, and hydraulic systems, to maintain system pressure, prevent contamination, and ensure the proper functioning of equipment ¹.

Role of the 3042004 Threaded Plug in Truck Operation

The Cummins 3042004 Threaded Plug plays a specific role in the operation and maintenance of commercial trucks. It is typically used in the engine block, oil galleries, and other critical areas where sealing is necessary to maintain system integrity. By securely sealing these areas, the plug helps to ensure that engine oil, coolant, and other fluids remain contained within their respective systems, contributing to the overall efficiency and reliability of the truck.

Key Features

The Cummins 3042004 Threaded Plug is characterized by several key features that enhance its performance and durability. It is made from high-quality materials that offer resistance to corrosion and wear, ensuring long-term reliability. The plug’s design specifications include precise threading that allows for a secure fit, minimizing the risk of leaks. Additionally, it may feature unique attributes such as a gasket or O-ring to further enhance the seal it provides.

Benefits

Using the Cummins 3042004 Threaded Plug offers several benefits. It contributes to improved system integrity by effectively sealing critical areas, which helps maintain the performance and efficiency of the truck’s engine and other systems. The plug is designed for ease of installation, allowing for quick replacement when necessary. Its durable construction and reliable sealing capabilities ensure long-term reliability, reducing the need for frequent maintenance or replacement.

Troubleshooting and Maintenance

Common issues with threaded plugs may include leaks due to wear or damage, or difficulty in removal for replacement. Regular inspection and maintenance can help identify and address these issues before they lead to more significant problems. Recommended practices include checking the plug for signs of wear or corrosion, ensuring it is properly tightened, and replacing it if any damage is detected. Troubleshooting tips may involve using penetrating oil to loosen a stuck plug or applying thread sealant to enhance the seal upon reinstallation ².

About Cummins

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 is committed to quality and innovation in the automotive and engine component industry. The company offers a wide range of products designed to meet the needs of various industries, emphasizing reliability, efficiency, and sustainability in its offerings.

Compatibility with Cummins Engines

The Threaded Plug 3042004, manufactured by Cummins, is a versatile component designed to fit a variety of Cummins engines. This plug is integral in sealing and protecting various engine components, ensuring optimal performance and longevity.

ISC Series Engines

The ISC series engines, including the ISC CM2150, ISC CM554, ISC CM850, and ISC8.3 CM2250, are equipped with the Threaded Plug 3042004. These engines are known for their robust design and are commonly used in heavy-duty applications.

ISL Series Engines

The ISL series engines, such as the ISL CM2150, ISL CM554, ISL G CM2180, ISL9 CM2150 SN, and ISL9 CM2250, also utilize the Threaded Plug 3042004. These engines are designed for both on-highway and off-highway applications, providing reliable power across various industries.

ISM Series Engines

The ISM series engines, including the ISM CM570, ISM CM570/870, ISM CM876, and ISM11 CM876 SN, are compatible with the Threaded Plug 3042004. These engines are engineered for high-performance and are often used in demanding environments.

ISX Series Engines

The ISX series engines, such as the ISX CM570, ISX CM870, ISX CM871, ISX12 CM2350 X102, ISX12 G CM2180 EJ, ISX12/ISX11.9 CM2250, ISX15 CM2250, and ISX15 CM2250 SN, are also designed to work with the Threaded Plug 3042004. These engines are known for their exceptional power and efficiency, making them suitable for a wide range of applications.

Other Compatible Engines

Additionally, the Threaded Plug 3042004 fits the 15N CM2380 M104B, 6C8.3, C GAS PLUS CM556, C8.3 G, and ISM CM570 engines. These engines, while not part of the ISC, ISL, or ISX series, still benefit from the reliable sealing and protection provided by this plug.

This compatibility ensures that the Threaded Plug 3042004 can be used across a broad spectrum of Cummins engines, enhancing their performance and durability.

Role of 3042004 Threaded Plug in Engine Systems

The 3042004 Threaded Plug is an essential component in various engine systems, contributing to the functionality and efficiency of several key parts.

In the arrangement of engine components, the Threaded Plug ensures secure connections and sealing, preventing leaks and maintaining system integrity.

For the oil fill system, it plays a significant role in maintaining the correct oil levels by sealing the oil fill port, ensuring that oil does not escape during operation.

The cover components, such as the cylinder block cover and flywheel housing cover, rely on the Threaded Plug to create a tight seal. This prevents contaminants from entering the engine and ensures that pressurized fluids or gases remain contained.

In the cylinder block, the Threaded Plug is used to seal passages and ports, contributing to the block’s structural integrity and operational efficiency.

The flywheel housing and flywheel hsg. (housing) utilize the Threaded Plug to seal various access points, ensuring that the flywheel operates in a clean and pressurized environment.

The gauge and oil level systems benefit from the Threaded Plug by maintaining accurate readings and preventing oil loss, which is vital for monitoring engine health.

The hand hole cover often incorporates Threaded Plugs to seal access points, allowing for maintenance while ensuring the engine remains sealed during operation.

In the housing components, such as the flywheel housing and flywheel repto housing, the Threaded Plug ensures that all connections are secure, preventing leaks and maintaining system pressure.

The flywheel itself, along with the flywheel repto and flywheel rpto, relies on the Threaded Plug to seal any passages or ports, ensuring smooth operation and longevity.

For the kit and repto upfit, the Threaded Plug is used to seal various components, ensuring that the upfit process does not introduce leaks or weaknesses into the engine system.

In plumbing applications within the engine, the Threaded Plug seals connections and passages, ensuring that fluids flow correctly without leakage.

Overall, the 3042004 Threaded Plug is a versatile and reliable component that enhances the performance and durability of various engine systems by ensuring secure seals and preventing leaks ³.

Conclusion

The Cummins 3042004 Threaded Plug is a critical component in the maintenance and operation of commercial trucks and various Cummins engines. Its role in sealing critical areas, preventing leaks, and maintaining system integrity contributes to the overall efficiency and reliability of the engine. The plug’s durable construction, ease of installation, and compatibility with a wide range of Cummins engines make it a valuable asset in ensuring the longevity and performance of these systems.