3900215
Threaded Plug
Cummins®

Introduction

The Threaded Plug 3900215 is a component manufactured by Cummins, a prominent name in the commercial truck industry. This plug is crucial for the maintenance and operation of commercial trucks, offering a reliable solution for sealing various openings and passages within the truck’s systems.

Basic Concepts of Threaded Plugs

Threaded plugs are mechanical components used to seal openings or passages in various systems. They are screwed into place, creating a tight seal that prevents the escape of fluids or gases. These plugs are vital in maintaining the integrity of systems by ensuring that no leaks occur, which could lead to system failure or inefficiency ¹.

Purpose of the 3900215 Threaded Plug

The 3900215 Threaded Plug plays a specific role in the operation of a truck. It is designed to seal openings in the engine or other systems, preventing the loss of fluids or gases. This plug interacts with various components within the truck’s systems, ensuring that they operate efficiently and without leaks ².

Key Features

The 3900215 Threaded Plug is characterized by its design and material properties. It features a specific thread type and size, ensuring a secure fit in the designated openings. The plug may also have special coatings or treatments to enhance its durability and resistance to corrosion or high temperatures ³.

Benefits

Using the 3900215 Threaded Plug offers several advantages. It provides an improved seal, ensuring that fluids or gases do not escape from the system. The plug’s durability and resistance to corrosion and high temperatures make it a reliable component for long-term use in demanding environments ⁴.

Installation Procedures

Installing the 3900215 Threaded Plug requires following a specific procedure to ensure a secure and effective seal. The process involves cleaning the opening, applying any necessary sealant, and screwing the plug into place. Tools or additional components may be required to complete the installation correctly ⁵.

Troubleshooting Common Issues

Common issues with threaded plugs include leaks or difficulty in removal. These problems can often be addressed by ensuring the plug is correctly installed, using the appropriate sealant, and applying the correct torque during installation. Regular inspection and maintenance can help prevent these issues ⁶.

Maintenance Tips

Regular inspection and maintenance of the 3900215 Threaded Plug are recommended to ensure its longevity and reliable performance. This includes checking for signs of wear or damage, ensuring the seal remains intact, and replacing the plug if necessary to maintain system integrity ⁷.

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of products and strong reputation. The company has a long history of providing high-quality components and systems for commercial trucks, ensuring efficient and reliable operation ⁸.

Compatibility with Cummins Engines

The Threaded Plug 3900215, manufactured by Cummins, is a versatile component designed to fit a wide range of Cummins engines. This plug is essential for sealing and securing various engine components, ensuring optimal performance and reliability. Below is a detailed overview of its compatibility with different Cummins engine models:

• 4B3.9, 6B5.9, 6C8.3, B3.9 G, B5.9 G, B5.9 GAS PLUS CM556, B6.7 CM2350 B135B, B6.7 CM2670 B153B, B6.7 G CMOH6.0 B125, C GAS PLUS CM556, C8.3 G, G5.9, G8.3, GTA38 G CMEICS G116C, ISB CM550, ISB CM850, ISB/ISD4.5 CM2150 B119, ISB/ISD6.7 CM2150 SN, ISB5.9G CM2180, ISBE CM2150, ISBE CM800, ISBE4 CM850, KTA19GC, KTA19GC CM558, L GAS PLUS CM556

This plug is designed to provide a secure and leak-proof seal in various engine applications, ensuring that the engine operates efficiently and reliably. Its compatibility with such a diverse range of engines highlights its versatility and importance in maintaining engine integrity ⁹.

Key Features

• Universal Fit: Designed to fit multiple engine models, reducing the need for multiple part inventories.
• Durability: Made from high-quality materials to withstand the rigors of engine operation.
• Ease of Installation: Simple to install, ensuring minimal downtime during maintenance or repairs.

Role in Engine Systems

The 3900215 Threaded Plug is an essential component in various engine systems, contributing to their efficient operation and reliability. Here’s how it integrates with several key components:

Turbocharger Systems

In turbocharger setups, the 3900215 Threaded Plug is often used to seal connections and passages. It ensures that the turbocharger operates within optimal parameters by preventing leaks in the exhaust outlet and maintaining the integrity of the turbocharger housing. This plug helps in sustaining the required pressure levels, enhancing the turbocharger’s performance and durability.

Flywheel Housing

Within the flywheel housing, the 3900215 Threaded Plug plays a role in sealing critical areas. It is positioned to prevent oil leakage from the flywheel and housing assembly. This seal is vital for maintaining the lubrication system’s efficiency, ensuring that the flywheel operates smoothly and reduces wear on moving parts.

Oil Pan and Oil Pan Kit

In the oil pan and oil pan kit, the 3900215 Threaded Plug is utilized to seal various passages and connections. It helps in maintaining the oil level within the pan, preventing leaks that could lead to oil starvation and subsequent engine damage. The plug’s reliable sealing capability is fundamental in preserving the engine’s lubrication system.

Transmission Systems

When incorporated into transmission systems, the 3900215 Threaded Plug aids in sealing critical areas within the transmission housing. This ensures that the transmission fluid remains contained, promoting efficient power transfer and reducing the risk of contamination or fluid loss.

General Engine Arrangement

Across the general engine arrangement, the 3900215 Threaded Plug is employed in multiple locations to ensure the engine’s various systems operate seamlessly. Whether sealing passages in the oil pan, turbocharger, or flywheel housing, this component is integral to maintaining the engine’s overall performance and longevity.

Conclusion

The 3900215 Threaded Plug by Cummins is a versatile and essential component for maintaining the integrity and efficiency of commercial truck engines. Its universal fit, durability, and ease of installation make it a reliable choice for sealing various engine components. Regular maintenance and proper installation procedures are crucial to ensure the longevity and performance of this Cummins part.