3040815
Threaded Plug
Cummins®

The Threaded Seal Plug 3040815 by Cummins is a component designed for use in commercial truck maintenance and operation. This plug serves a specific function within the truck’s system, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and significance is fundamental for maintaining the integrity of the truck’s components and ensuring smooth operation.

Basic Concepts of Threaded Seal Plugs

A threaded seal plug is a fastener used to seal openings in various systems, including automotive and heavy-duty truck applications. It functions by creating a secure, leak-proof seal when screwed into a threaded hole. This plug is commonly employed in fluid systems to prevent leaks and protect internal components from contaminants. Its design allows for easy installation and removal, making it a versatile solution for sealing applications.

Purpose of the 3040815 Threaded Seal Plug

The 3040815 Threaded Seal Plug by Cummins is specifically engineered to seal and protect various components within a truck’s system. It plays a role in maintaining the integrity of fluid systems by preventing leaks and ensuring that contaminants do not enter sensitive areas. This plug is integral to the operation of the truck, as it helps maintain system pressure and protects components from damage.

Key Features

The 3040815 Threaded Seal Plug boasts several key features that enhance its performance and durability. It is constructed from high-quality materials, ensuring resistance to corrosion and wear. The threading specifications are designed to provide a secure fit, while the plug’s design elements contribute to its sealing efficiency. These features make the 3040815 an reliable choice for commercial truck applications.

Benefits of Using the 3040815 Threaded Seal Plug

Utilizing the 3040815 Threaded Seal Plug offers several advantages. Its improved sealing efficiency helps maintain system integrity and prevent leaks. The plug’s longevity and resistance to corrosion and wear contribute to reduced maintenance requirements and extended component life. These benefits make it a valuable component for commercial truck operators seeking reliability and performance.

Installation Process

Proper installation of the 3040815 Threaded Seal Plug is crucial for ensuring a secure fit and optimal performance. The installation process involves threading the plug into the designated hole until it is snug. It is important to use the appropriate tools and follow manufacturer guidelines to avoid damage to the plug or surrounding components. A secure installation will help maintain system integrity and prevent leaks.

Troubleshooting Common Issues

Common issues associated with threaded seal plugs include leaks and difficulty in removal. To address leaks, it is important to ensure that the plug is properly installed and that there are no defects in the threading or seal. If removal is difficult, using the correct tools and techniques can help avoid damage to the plug or surrounding components. Regular inspection and maintenance can help identify and resolve these issues before they become problematic.

Maintenance Tips

Regular maintenance of the 3040815 Threaded Seal Plug is important for ensuring optimal performance and longevity. This includes periodic inspection for signs of wear or damage, as well as cleaning the plug and surrounding area to prevent contamination. Following manufacturer guidelines for maintenance intervals and procedures will help ensure the plug continues to function effectively.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and commitment to quality, Cummins has established itself as a trusted name in the commercial truck industry. The company’s product range includes a variety of components and systems designed to enhance the performance and reliability of commercial vehicles. ¹

Threaded Seal Plug 3040815 Compatibility with Cummins Engines

The Threaded Seal Plug part number 3040815, manufactured by Cummins, is a critical component in various engine models. This part is designed to ensure a secure and leak-proof seal in threaded applications across a range of Cummins engines. Here is a detailed look at its compatibility with different engine series:

ISB6.7 and Related Engines

• ISB6.7 G CM2180 B118
• QSB6.7 M CM2250

These engines, part of the ISB and QSB series, utilize the 3040815 Threaded Seal Plug in applications where a reliable seal is essential. This includes sealing oil passages and other critical areas to prevent leaks and maintain engine integrity.

ISC and ISL Engines

• ISC CM554
• ISL CM554

The ISC and ISL engines, both equipped with the CM554 designation, incorporate the 3040815 Threaded Seal Plug in various sealing applications. This ensures that the engine’s internal components remain protected from contaminants and maintain optimal performance.

ISM Engines

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

The ISM series engines, including the CM570, CM570/870, CM876, and ISM11 CM876 SN, use the 3040815 Threaded Seal Plug in several sealing contexts. This part is crucial for maintaining the engine’s sealing integrity, particularly in high-pressure environments.

K Series Engines

• K19
• K38
• K50

The K series engines, such as the K19, K38, and K50, integrate the 3040815 Threaded Seal Plug in their design to ensure reliable sealing in various applications. This helps in maintaining the engine’s operational efficiency and longevity.

KTA19 Series Engine

• KTA19GC CM558

The KTA19GC CM558 engine uses the 3040815 Threaded Seal Plug to provide a secure seal in critical areas, ensuring the engine operates smoothly and efficiently.

L10 Series Engines

• L10 CELECT
• L10 GAS
• L10 MECHANICAL

The L10 series engines, including CELECT, GAS, and MECHANICAL variants, incorporate the 3040815 Threaded Seal Plug in their sealing requirements. This ensures that the engine maintains its performance and reliability.

M11 Series Engines

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

The M11 series engines, such as CELECT, CELECT PLUS, and MECHANICAL versions, utilize the 3040815 Threaded Seal Plug to provide a dependable seal in various engine components, ensuring optimal engine performance.

N14 Series Engine

• N14 MECHANICAL

The N14 MECHANICAL engine uses the 3040815 Threaded Seal Plug to maintain sealing integrity in critical areas, contributing to the engine’s overall reliability and efficiency.

NH/NT 855 Engine

• NH/NT 855

The NH/NT 855 engine incorporates the 3040815 Threaded Seal Plug in its design to ensure a secure seal in various applications, enhancing the engine’s performance and durability.

QSC Series Engines

• QSC8.3 CM554
• QSC8.3 CM850 (CM2850)
• QSC9 CM2250/QSL9 CM2250
• QSK19 CM2350 K105
• QSK19 CM2350 K114

The QSC series engines, including the QSC8.3 CM554, QSC8.3 CM850 (CM2850), QSC9 CM2250/QSL9 CM2250, QSK19 CM2350 K105, and QSK19 CM2350 K114, use the 3040815 Threaded Seal Plug in various sealing applications. This ensures that the engine maintains its sealing integrity and operates efficiently.

Role of Part 3040815 Threaded Seal Plug in Engine Systems

The Part 3040815 Threaded Seal Plug is an essential component in various engine systems, ensuring the integrity and functionality of several critical assemblies.

In the Base Fuel Pump system, the threaded seal plug is utilized to secure connections and prevent fuel leaks, maintaining the efficiency and safety of the fuel delivery process.

Within the Engine Oil Cooler, it plays a part in sealing the oil passages, ensuring that the oil circulates properly without any loss, which is vital for maintaining optimal engine temperature.

The F.P. Front Cover of the fuel pump incorporates the threaded seal plug to ensure that the internal components are protected from contaminants and that the fuel pressure remains consistent.

In the Fuel Control system, the plug is used to seal various ports and passages, contributing to the precise regulation of fuel flow to the engine.

For the Fuel Drain Plumbing, the threaded seal plug is critical in sealing the drainage points, preventing any fuel spillage and ensuring that the system can be safely drained when necessary.

The Fuel Filter and Fuel Filter Plumbing also benefit from the use of this plug, as it helps in maintaining the seal integrity around the filter housing and plumbing connections, ensuring clean fuel is delivered to the engine.

In the Fuel Pump Body and Fuel Pump Cover, the plug is used to seal access points and passages, ensuring that the fuel pump operates efficiently without any leaks.

The Fuel Pump Front Cover and Fuel Pump Mounting utilize the threaded seal plug to secure the pump to the engine and seal any potential leak points, ensuring a stable and leak-free installation.

For the Fuel Pump Variable Speed Hardware, the plug ensures that all adjustable components are sealed properly, allowing for fine-tuning of the fuel pump’s performance without any risk of fuel escape.

In the Full Flow Oil Filter and Lubricating Oil Filter systems, the plug is used to seal the filter housing, ensuring that oil filtration is effective and that there are no bypass leaks.

The Oil Bypass Filter also employs the threaded seal plug to maintain the integrity of the bypass system, ensuring that oil can flow through the filter media properly.

In the Oil Pan and Oil Pan Plumbing, the plug is crucial for sealing the oil pan and its associated plumbing, preventing oil loss and maintaining the lubrication system’s efficiency.

The Pressure Regulator Valve uses the plug to seal the valve housing, ensuring that fuel pressure is regulated accurately without any leaks.

In the Rocker Lever system, the plug may be used to seal lubrication points, ensuring that the rocker arms receive adequate lubrication for smooth operation.

The Sensor Plumbing throughout the engine relies on the threaded seal plug to ensure that all sensor connections are leak-free, providing accurate readings and data for engine management.

In the Spare Parts Kit, the threaded seal plug is often included to address potential sealing issues that may arise during maintenance or repair work.

The Thermostat Housing uses the plug to seal the housing, ensuring that the thermostat can regulate engine temperature effectively without any coolant loss.

Finally, in the Water Manifold and Water Top Level Assembly Manifold, the plug is used to seal water passages, ensuring efficient coolant flow and maintaining the engine’s thermal management system.

Conclusion

The 3040815 Threaded Seal Plug by Cummins is a vital component in the maintenance and operation of commercial trucks. Its role in sealing various systems and preventing leaks contributes significantly to the efficiency and reliability of the vehicle. Proper installation, regular maintenance, and understanding its compatibility with different Cummins engines are essential for maximizing the benefits of this part. By ensuring the integrity of fluid systems and protecting internal components from contaminants, the 3040815 Threaded Seal Plug plays a crucial role in the overall performance of commercial trucks.