4926690
Threaded Plug
Cummins®

Introduction

The Threaded Plug 4926690, manufactured by Cummins, is a critical component in the commercial truck industry. This part is designed to seal specific openings within a truck’s engine or other systems, ensuring that fluids or gases do not escape, thereby maintaining system integrity and performance.

Basic Concepts of Threaded Plugs

Threaded plugs are mechanical components used to seal openings in various systems by being screwed into place, creating a secure and tight seal that prevents fluid or gas leakage ². In the automotive industry, these plugs are commonly employed in engine blocks, transmission cases, and other systems where sealing is essential.

Purpose of the 4926690 Threaded Plug

This Cummins part is designed to seal specific openings within a truck’s engine or other systems. Its role is to prevent the escape of fluids or gases, ensuring that the system operates under the correct pressure and conditions. This helps maintain the efficiency and reliability of the truck by preventing leaks that could lead to system failure or reduced performance ³.

Key Features

The 4926690 Threaded Plug is characterized by several features that enhance its performance and durability. It is made from high-quality materials that resist corrosion and wear, ensuring a long service life. The plug features a specific thread type that matches the openings it is designed to seal, providing a secure fit. Its design specifications are tailored to meet the demanding conditions of commercial truck operations ⁴.

Benefits of Using the 4926690 Threaded Plug

Incorporating this part into truck maintenance and operation offers several advantages. It contributes to the efficiency of the truck by ensuring that systems operate under the correct conditions. The plug’s reliable sealing capability helps prevent leaks, reducing the risk of system failure. Its durable construction ensures longevity, providing value over the truck’s operational life ¹.

Installation Process

Installing the 4926690 Threaded Plug requires careful attention to ensure a secure fit. The process involves cleaning the opening to be sealed, applying a thread sealant if necessary, and screwing the plug into place using the appropriate tools. It is important to follow the manufacturer’s guidelines to ensure the plug is installed correctly and securely ².

Troubleshooting Common Issues

Frequent problems with threaded plugs can include leaks due to improper installation or wear over time. Diagnosing these issues involves checking the plug for signs of damage or wear and ensuring it is installed correctly. Solutions may include re-sealing the plug, replacing it if damaged, or adjusting the installation process to ensure a secure fit ³.

Maintenance Tips

To prolong the life of the 4926690 Threaded Plug and ensure optimal performance, routine checks are recommended. This includes inspecting the plug for signs of wear or damage during regular maintenance intervals. Ensuring the plug is correctly installed and sealed will help maintain system integrity and performance ⁴.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and related components. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry for producing reliable and efficient components that contribute to the performance and longevity of vehicles ¹.

Compatibility with Cummins Engines

The Cummins Threaded Plug part number 4926690 is designed to fit a variety of Cummins engines, ensuring compatibility across different models and configurations. Here is a detailed breakdown of the engines with which this part is compatible:

• 6B5.9 and 6C8.3 Engines: Part of the Cummins B Series engine family, known for robust performance and reliability.
• B5.6 CM2670 B152B, B6.7 CM2670 B153B: These engines are part of the Cummins B Series, featuring the CM2670 engine block.
• ISB5.9 CM2880 B110, ISB5.9 CM2880 B140, ISB5.9 CM2880 B149: Part of the Cummins ISB Series, known for efficiency and power.
• ISL9 CM2150 SN: Part of the Cummins ISL Series, widely used in heavy-duty applications.
• QSL8.9 CM2150 L141, QSL9 CM850 (CM2850): Part of the Cummins QSL Series, designed for high-performance applications.

Role of Part 4926690 Threaded Plug in Engine Systems

The part 4926690 threaded plug is an essential component in maintaining the integrity and functionality of various engine systems. Its primary role is to seal and secure specific points within the engine, ensuring that fluids and gases remain contained within their designated pathways.

Integration with the Oil Pan

In the context of the oil pan, the threaded plug is utilized to seal openings that may be used for maintenance purposes, such as oil level checks or pressure relief. By securely fitting into these openings, the plug prevents oil leakage, which is vital for maintaining proper lubrication within the engine. This, in turn, helps in reducing friction between moving parts, enhancing engine performance and longevity ².

Function within the Oil System

Within the oil system, the threaded plug also plays a role in managing oil flow. It can be positioned at strategic points to direct oil to critical components, ensuring that all parts receive adequate lubrication. This is particularly important in high-performance engines where precise oil distribution can significantly impact engine efficiency and reliability ³.

Overall Engine System Contribution

Beyond its specific applications in the oil pan and oil system, the threaded plug contributes to the overall stability of the engine system. By providing a reliable seal, it helps maintain the pressure integrity of the engine, which is essential for optimal combustion and power delivery. Additionally, it assists in preventing contaminants from entering the engine, which can lead to wear and potential failure of internal components ⁴.

Conclusion

The 4926690 Threaded Plug by Cummins is a vital component in the maintenance and operation of commercial trucks. Its role in sealing openings within engine systems ensures that fluids and gases remain contained, thereby maintaining system integrity and performance. With its durable construction and compatibility with a wide range of Cummins engines, this part provides a reliable solution for securing threaded connections across different engine models and configurations.