5259561
Threaded Plug
Cummins®

The Cummins 5259561 Threaded Plug is a component designed for use in commercial truck maintenance. It serves a specific function within the truck’s systems, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and significance is key to maintaining the truck’s performance and longevity.

Basic Concepts of Threaded Plugs

Threaded plugs are mechanical components used to seal openings in various systems. They are screwed into place, creating a secure and leak-proof seal. In automotive systems, threaded plugs are commonly employed to close off ports, passages, or openings where fluids or gases need to be contained or where access is not required. Their design allows for easy installation and removal, making them versatile for a range of applications ¹.

Purpose of the Cummins 5259561 Threaded Plug

The Cummins 5259561 Threaded Plug plays a role in sealing specific ports within a truck’s system. It is designed to interface with various components, ensuring that fluids or gases remain contained within their designated pathways. This plug is integral to maintaining the integrity of the system it is part of, preventing leaks and ensuring that the system operates as intended.

Key Features

The Cummins 5259561 Threaded Plug is characterized by several key features that enhance its functionality. It is made from durable materials to withstand the pressures and temperatures of its operating environment. The thread type is designed for a secure fit, and the plug’s design specifications ensure it can be easily installed and removed when necessary.

Benefits

Using the Cummins 5259561 Threaded Plug offers several advantages. Its durable construction ensures long-term reliability, while its design allows for straightforward installation. The plug’s ability to create a secure seal contributes to the overall performance of the truck’s system, helping to maintain efficiency and prevent issues related to leaks or contamination ².

Installation Process

Installing the Cummins 5259561 Threaded Plug involves several steps to ensure a proper fit and seal. The process typically requires specific tools to achieve the correct torque and ensure the plug is securely in place. Following the manufacturer’s guidelines for installation is important to maintain the integrity of the system and the plug itself.

Common Applications

The Cummins 5259561 Threaded Plug is commonly used in scenarios where sealing is required within a truck’s system. It is applicable in various systems where maintaining fluid or gas containment is crucial for the system’s operation. Its versatility makes it a valuable component in commercial truck maintenance.

Troubleshooting and Maintenance

Identifying issues with the Cummins 5259561 Threaded Plug may involve checking for signs of leaks or damage. Regular maintenance practices, such as inspecting the plug for wear and ensuring it is properly installed, can help prevent problems and ensure the plug continues to function as intended.

Safety Considerations

When handling and installing the Cummins 5259561 Threaded Plug, it is important to observe safety guidelines. This includes using the appropriate tools and following installation procedures to avoid injury or damage to the component. Ensuring the work area is safe and that all safety precautions are taken is crucial when performing maintenance tasks.

Cummins Overview

Cummins Inc. is a well-established company in the commercial truck industry, known for its wide range of products and commitment to quality. With a history of innovation and excellence, Cummins has built a reputation for producing reliable and high-performance components for the automotive sector.

Threaded Plug Part 5259561 Compatibility with Cummins Engines

The threaded plug part 5259561 by Cummins is designed to fit a variety of engine models. Here is a detailed breakdown of its compatibility across different engine series:

B Series Engines

• B4.5 CM2350 B129B
• ISB4.5 CM2350 B104

These engines are part of the B series, known for their robust design and reliability in various applications.

D Series Engines

• D4.0 CM2620 D103B

The D series engines are recognized for their high performance and efficiency, making them suitable for demanding applications.

F Series Engines

• F2.8 CM2620 F135B
• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

The F series engines are a versatile range, offering a balance of power and fuel efficiency across various applications.

ISF Series Engines

• ISF2.8 CM2220 F117
• ISF2.8 CM2220 F129
• ISF3.8 CM2220 AN
• ISF3.8 CM2350 F109
• ISF4.5 CM2220 F123

The ISF series engines are designed for high torque and durability, making them ideal for heavy-duty applications.

QSF Series Engines

• QSF2.8 CM2880 F104
• QSF2.8 CM2880 F105
• QSF2.8 CM2880 F108
• QSF2.8 CM2880 F114
• QSF3.8 CM2350 F107
• QSF3.8 CM2880 F112

The QSF series engines are engineered for superior performance and efficiency, suitable for both on-highway and off-highway applications.

R Series Engines

• R2.8 CM2220 R101B

The R series engines are designed for reliability and ease of maintenance, making them a popular choice for various industrial applications.

This compatibility ensures that the threaded plug part 5259561 can be effectively used across a broad spectrum of Cummins engines, providing a reliable solution for maintenance and repair needs.

Role of Part 5259561 Threaded Plug in Engine Systems

The Part 5259561 Threaded Plug is an essential component in various engine systems, ensuring the integrity and efficiency of fluid pathways. In the air compressor system, this threaded plug is utilized to seal off unused ports or to provide a secure connection point for maintenance purposes.

Within the air intake connection, the threaded plug helps maintain a sealed environment, preventing any air leaks that could affect engine performance. Similarly, in the banjo connector setup, it ensures that the hydraulic lines remain sealed, which is vital for the proper functioning of the braking or clutch systems.

In the context of the engine oil cooler and lubricating oil cooler module, the threaded plug plays a significant role in sealing off connections that are not in use, thereby maintaining the efficiency of the cooling process. It is also found in the female branch tee where it aids in directing the flow of oil or other fluids without leakage.

The front cylinder block cover often incorporates threaded plugs to seal off areas where components may be added or removed in the future. In the lubricating oil pump system, these plugs ensure that the pump operates within a sealed environment, optimizing lubrication distribution throughout the engine.

For the lub oil cooler and oil cooler, the threaded plug is used to seal connections that are not actively used, ensuring that the cooling system operates efficiently without any fluid loss. In the oil cooler housing and oil filter cooler head, it provides a secure seal for connections, contributing to the overall effectiveness of the cooling system.

In the water inlet connection and water inlet tube, the threaded plug is employed to seal off any unused ports, ensuring that the water cooling system remains efficient and free from leaks. This component is integral to maintaining the performance and reliability of various engine systems by ensuring secure and leak-free connections ³.

Conclusion

The Cummins 5259561 Threaded Plug is a critical component in the maintenance and operation of commercial trucks. Its role in sealing various ports and connections within engine systems ensures the integrity and efficiency of fluid pathways. Understanding its purpose, features, and applications is essential for maintaining the performance and longevity of the vehicle. Regular maintenance and proper installation are key to ensuring the threaded plug continues to function as intended, contributing to the overall reliability of the truck’s systems.