3919016
Threaded Plug
Cummins®

The Cummins 3919016 Threaded Plug is a component used 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 role is fundamental for maintaining the truck’s performance and longevity.

Basic Concepts of Threaded Plugs

Threaded plugs are mechanical components designed to seal openings in various systems. They consist of a threaded section that screws into a corresponding threaded hole, creating a secure seal. These plugs are commonly used in automotive and industrial applications to prevent fluid leaks, protect against contaminants, and maintain system integrity. Their design allows for easy installation and removal, making them versatile for different applications ¹.

Purpose of the Cummins 3919016 Threaded Plug

The Cummins 3919016 Threaded Plug plays a role in sealing specific ports within a truck’s engine or other systems. Its primary function is to prevent the escape of fluids or gases, ensuring that the system operates under the correct pressure and conditions. By maintaining these seals, the plug contributes to the efficient operation of the truck and helps in preventing potential leaks that could lead to system failure or inefficiency ².

Key Features

The Cummins 3919016 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 ports it is designed to seal, providing a secure fit. Its design includes considerations for ease of installation and removal, facilitating maintenance procedures ³.

Benefits of Using the Cummins 3919016 Threaded Plug

Utilizing the Cummins 3919016 Threaded Plug offers several advantages. Its design ensures improved sealing, which is crucial for maintaining system pressure and preventing leaks. The material composition provides resistance to corrosion, extending the plug’s lifespan even in harsh operating conditions. Additionally, the plug’s design allows for ease of installation, reducing maintenance time and effort.

Installation Process

Installing the Cummins 3919016 Threaded Plug requires following a specific procedure to ensure proper function and longevity. First, the corresponding port should be cleaned to remove any debris or old sealant. The plug should then be screwed into the port by hand until it reaches the point where it can be tightened with a tool. Care should be taken not to over-tighten, as this could damage the threads or the plug itself. Once installed, the plug should be checked for a secure seal.

Common Issues and Troubleshooting

Threaded plugs, including the Cummins 3919016, may encounter issues such as leaks or difficulty in removal. Leaks can often be traced to improper installation, damage to the plug or port, or corrosion. Diagnosing these issues involves inspecting the plug and port for signs of wear or damage and ensuring that the plug is correctly installed. Troubleshooting steps may include cleaning the port, replacing the plug if damaged, or addressing any corrosion issues.

Maintenance Tips

Regular maintenance practices can prolong the life of the Cummins 3919016 Threaded Plug and ensure ongoing performance. This includes periodic inspection of the plug and port for signs of wear, corrosion, or leaks. Cleaning the port before reinstallation and ensuring that the plug is correctly tightened can prevent many common issues. Additionally, protecting the plug and port from contaminants and excessive moisture can help maintain their condition.

Replacement Guidelines

Determining when to replace the Cummins 3919016 Threaded Plug involves observing signs of wear or damage, such as corrosion, thread damage, or leaks. Regular inspection intervals, as recommended by the manufacturer or based on the truck’s operating conditions, can help identify when replacement is necessary. Replacing the plug before significant damage occurs can prevent system failures and ensure the truck’s continued efficient operation.

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, reliability, and innovation in the commercial truck industry. Its product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of commercial applications.

Threaded Plug 3919016 Compatibility with Cummins Engines

The Threaded Plug part number 3919016, manufactured by Cummins, is designed to fit a range of Cummins engines. This part is integral to ensuring the proper sealing and functionality of various engine components. Below is a detailed breakdown of its compatibility across different engine models:

6C8.3 Series

• 6C8.3: This engine model is part of the 6C series, known for its robust performance and reliability in various applications. The threaded plug 3919016 is used in this engine to maintain the integrity of the fuel system and other critical pathways.

C GAS PLUS CM556 Series

• C GAS PLUS CM556: This engine is part of the C series, which is designed for high-efficiency gas operations. The threaded plug 3919016 is essential in this model to ensure that the gas pathways are sealed correctly, preventing leaks and maintaining optimal engine performance.

C8.3 Series

• C8.3: This engine is known for its versatility and is used in a variety of applications. The threaded plug 3919016 is a critical component in this engine, ensuring that all threaded connections are secure and leak-free.

G8.3 Series

• G8.3: This engine model is part of the G series, which is designed for durability and efficiency. The threaded plug 3919016 is used in this engine to maintain the structural integrity of the fuel and oil systems.

ISC CM554 Series

• ISC CM554: This engine is part of the ISC series, known for its reliability and performance in heavy-duty applications. The threaded plug 3919016 is essential in this model to ensure that all threaded connections are properly sealed.

ISL CM554 Series

• ISL CM554: This engine is part of the ISL series, which is designed for high-performance and efficiency. The threaded plug 3919016 is used in this engine to maintain the integrity of the fuel and oil systems.

QSC8.3 CM554 Series

• QSC8.3 CM554: This engine model is part of the QSC series, which is known for its quiet operation and reliability. The threaded plug 3919016 is a critical component in this engine, ensuring that all threaded connections are secure and leak-free.

QSL9 CM554 Series

• QSL9 CM554: This engine model is part of the QSL series, which is designed for high efficiency and low emissions. The threaded plug 3919016 is used in this engine to maintain the structural integrity of the fuel and oil systems.

By ensuring that the threaded plug 3919016 is correctly installed in these engines, users can maintain optimal performance and reliability, preventing potential issues such as leaks and system failures.

Role of Part 3919016 Threaded Plug in Engine Systems

The threaded plug, identified by part number 3919016, serves a significant function within various engine systems, ensuring the integrity and efficiency of these components.

In the cooler system, the threaded plug is utilized to seal off passages or ports that are not in use, preventing coolant leaks and maintaining the system’s pressure. This ensures that the coolant circulates efficiently, providing optimal cooling to the engine components.

Within the engine oil system, the threaded plug is employed to seal oil galleries or passages that are temporarily not required. This helps in maintaining the oil pressure and ensuring that the oil reaches all necessary parts of the engine, thus facilitating proper lubrication and reducing wear.

In the head of the engine, the threaded plug is often used to seal off unused coolant or oil passages. This is particularly important in multi-cylinder engines where certain passages may not be utilized in all configurations. Proper sealing prevents leaks and ensures that the head gasket functions correctly, maintaining the integrity of the combustion chamber.

For the oil filter cooler, the threaded plug is essential in sealing off any bypass or relief passages. This ensures that the oil flows through the cooler as intended, enhancing the oil’s cooling efficiency before it is circulated back into the engine. Proper sealing prevents any bypass that could lead to inadequate cooling and potential engine damage.

In the context of a long block assembly, the threaded plug is used to seal various passages within the engine block and cylinder head. This includes sealing off coolant, oil, and vacuum passages that are not utilized in the specific configuration of the long block. Ensuring these passages are properly sealed is vital for the long block’s performance and durability, as it maintains the intended flow paths for fluids and prevents any unwanted leaks.

Conclusion

The Cummins 3919016 Threaded Plug is a critical component in maintaining the efficiency and reliability of commercial trucks. Its role in sealing various engine systems ensures optimal performance and prevents potential issues such as leaks and system failures. Regular maintenance and proper installation are key to maximizing the lifespan and effectiveness of this Cummins part.