3037536
Threaded Plug
Cummins®

The Cummins 3037536 Threaded Plug is a component designed for use in commercial trucks, specifically within the engine and related systems. Its purpose is to seal openings or passages that are not in use, ensuring the integrity of the system and preventing fluid leaks. This part is significant in the context of commercial truck maintenance and operation as it contributes to the overall efficiency and longevity of the vehicle.

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 secure seal that prevents the escape of fluids or gases. In mechanical systems, threaded plugs are commonly used to close off ports that are not required for operation, ensuring that the system remains sealed and functions as intended ¹.

Purpose of the Cummins 3037536 Threaded Plug

The Cummins 3037536 Threaded Plug is specifically designed to seal unused ports or passages within the engine or other systems of a truck. By doing so, it helps maintain the integrity of the system, preventing leaks that could lead to decreased performance or damage. This part is applied in scenarios where certain ports are not utilized during operation but need to be securely sealed.

Key Features

The Cummins 3037536 Threaded Plug is constructed from materials that offer durability and resistance to corrosion, ensuring long-term performance in demanding environments. It features a specific thread size and type that matches the openings it is designed to seal, providing a secure fit. Unique design elements may include a tapered thread for enhanced sealing capabilities and resistance to vibration-induced loosening ².

Benefits

Using the Cummins 3037536 Threaded Plug offers several benefits. It improves system integrity by effectively sealing unused ports, which helps prevent fluid leaks. This contributes to overall engine efficiency and longevity by maintaining the system’s intended pressure and fluid levels. Additionally, the plug’s durable construction ensures it can withstand the rigors of commercial truck operation ³.

Installation Process

Proper installation of the Cummins 3037536 Threaded Plug involves several steps to ensure a secure and effective seal. First, the port to be sealed should be cleaned to remove any debris or old sealant. The plug is then screwed into place using the appropriate tools to achieve the recommended torque specification. Care should be taken to avoid over-tightening, which could damage the plug or the port.

Troubleshooting and Maintenance

Common issues with threaded plugs include leaks or loose fittings. To address these, regular inspections should be conducted to ensure the plug remains securely in place and the seal is intact. If a leak is detected, the plug may need to be removed, the port cleaned, and the plug re-installed with fresh sealant if necessary. Maintenance practices such as these help ensure the longevity and effectiveness of the Cummins 3037536 Threaded Plug.

Manufacturer Information - Cummins

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 within the commercial truck industry. Their product range is designed to meet the demanding requirements of commercial applications, ensuring reliability and performance.

Compatibility with Cummins Engines

The Cummins Threaded Plug part number 3037536 is designed to fit a variety of Cummins engines, ensuring compatibility across multiple models. Here is a detailed breakdown of the engines with which this part is compatible:

B5.9 Series

• B5.9 G
• B5.9 GAS PLUS CM556

C GAS PLUS Series

• C GAS PLUS CM556

G5.9 Series

• G5.9
• G5.9 CM558

G8.3 Series

• G8.3
• G8.3 CM558

G855 Series

• G855
• G855 CM558

GTA Series

• GTA38 G CMEICS G116C
• GTA8.3 CM558
• GTA855 CM558 (CM2358) G101

ISB Series

• ISB CM550
• ISB5.9 CM2880 B110
• ISB6.7 G CM2180 B118

ISL Series

• ISL G CM2180

ISM Series

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

ISX Series

• ISX CM570
• ISX CM870
• ISX CM871

K Series

• K19
• K38

This threaded plug is engineered to meet the specific requirements of these engines, ensuring a secure and reliable fit. It is crucial to verify the part number and specifications to ensure compatibility with the specific engine model in use.

Role of Part 3037536 Threaded Plug in Engine Systems

The part 3037536 Threaded Plug is integral to the functionality and maintenance of various engine systems. Its application spans across multiple components, ensuring optimal performance and safety.

Fuel System Integration

In the fuel system, the Threaded Plug is utilized in the fuel pump and fuel pump inlet fitting. It secures connections, preventing leaks and ensuring the fuel pump operates within specified parameters. The plug’s role in the fuel valve is similarly significant, maintaining the integrity of the fuel delivery process.

Engine Block and Cylinder Components

Within the engine block and cylinder (service) block, the Threaded Plug is employed to seal passages and cavities. This application is vital in the camshaft mounting cover and connecting rod and piston assemblies, where it helps maintain pressure and prevent contaminants from entering sensitive areas.

Cooling and Lubrication Systems

The Threaded Plug is also a key component in the engine’s cooling and lubrication systems. In the lubricating oil filter arrangement and oil cooler plumbing, it ensures that oil flows are directed correctly and that systems remain pressurized. Similarly, in the water plumbing pump and water outlet connecting mounting, it aids in maintaining the efficiency of the cooling system.

Aftercooler and Exhaust Systems

In the aftercooler assembly and aftercooler variable speed hydraulic assembly, the Threaded Plug plays a role in regulating the flow of air and hydraulic fluid, contributing to the overall efficiency of these systems. In the exhaust recirculation system, it helps in managing emissions by ensuring that recirculated exhaust gases are properly contained and directed.

Additional Applications

The Threaded Plug finds its place in various other components such as the air crossover connection, hand hole cover, and low BTU fuel module V16. In these applications, it serves to seal, secure, and direct flows, contributing to the safe and efficient operation of the engine.

Specialized Assemblies

In more specialized assemblies like the EBM: Cooler and short block, the Threaded Plug is used to seal and secure critical connections, ensuring these components function as intended within the engine system.

Conclusion

The versatility and reliability of the Cummins 3037536 Threaded Plug make it an indispensable component in a wide range of engine systems. Its application across various components underscores its importance in maintaining the integrity, efficiency, and safety of engine operations.