3067424
Threaded Plug
Cummins®

Introduction

The Threaded Plug 3067424 by Cummins is a specialized component designed for use in commercial truck operations. This part serves multiple functions within truck systems, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and role is fundamental for maintaining and optimizing truck performance.

Basic Concepts of Threaded Plugs

Threaded plugs are mechanical components used to seal openings in various systems. They are commonly employed in automotive and industrial applications to prevent fluid or gas leakage, maintain system pressure, and protect internal components from contaminants. These plugs are typically screwed into place, providing a secure and tight seal. Their design allows for easy installation and removal, making them versatile for a range of applications ¹.

Purpose and Function of Threaded Plug 3067424

The Threaded Plug 3067424 by Cummins is specifically engineered to play a role in sealing and pressure management within truck systems. It is used to close off ports or openings where access is not required, ensuring that the system maintains its integrity. By preventing leaks and maintaining pressure, this plug contributes to the efficient operation of the truck’s systems. Additionally, it helps in protecting sensitive components from external contaminants, thereby enhancing the overall performance and longevity of the truck ².

Key Features

The Threaded Plug 3067424 is designed with several key features that enhance its performance and durability. It is constructed from high-quality materials that offer resistance to corrosion and wear. The thread type is meticulously chosen to ensure a secure fit, reducing the risk of loosening over time. Its design specifications are tailored to meet the demanding conditions of commercial truck operations, providing reliable sealing and pressure management.

Benefits

Using the Threaded Plug 3067424 offers several advantages. It contributes to improved system reliability by ensuring that seals remain intact and pressures are maintained. The plug’s design allows for straightforward installation, reducing downtime during maintenance procedures. Additionally, its durable construction leads to long-term cost savings by minimizing the need for frequent replacements and repairs.

Troubleshooting and Maintenance

Common issues associated with threaded plugs include leaks due to improper installation or wear and tear. To diagnose these problems, it is important to inspect the plug for signs of damage or corrosion. Regular maintenance practices, such as checking the tightness of the plug and ensuring that the threading is intact, can help prevent issues. If a plug shows signs of wear, it should be replaced promptly to maintain system integrity.

About Cummins

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 is committed to innovation and quality in the automotive and engine manufacturing industry. The company offers a wide range of products designed to meet the needs of various applications, from commercial trucks to industrial equipment, ensuring reliable and efficient performance.

Compatibility with Cummins Engines

The Threaded Plug 3067424, manufactured by Cummins, is designed to fit a variety of Cummins engines. This plug is integral in sealing and protecting various components within the engine system. Below is a detailed breakdown of the compatibility of this part with the specified engines:

K-Series Engines

• K19
• K38
• K50

These engines, part of the K-Series, utilize the Threaded Plug 3067424 for sealing purposes, ensuring that the engine operates efficiently and safely.

L-Series Engines

• L10 CELECT
• L10 MECHANICAL

Both variants of the L10 engine incorporate the Threaded Plug 3067424, highlighting its versatility across different engine technologies.

M-Series Engines

• M11 CELECT PLUS
• M11 MECHANICAL

The M11 engines, whether CELECT PLUS or MECHANICAL, are compatible with the Threaded Plug 3067424, ensuring a secure fit and proper sealing.

N-Series Engines

• N14 CELECT PLUS
• N14 MECHANICAL

The N14 engines, available in both CELECT PLUS and MECHANICAL versions, also use the Threaded Plug 3067424, emphasizing its broad applicability.

G-Series Engines

• G855
• NH/NT 855

The G855 and NH/NT 855 engines from the G-Series are designed to work with the Threaded Plug 3067424, ensuring compatibility across different engine models within the series.

QSK-Series Engines

• QSK19 CM2350 K114
• QSK19 CM500
• QSK19 CM850 MCRS
• QSK19G
• QSN14 CM876 N103

The QSK-Series engines, including the QSK19 and QSN14 models, are all compatible with the Threaded Plug 3067424, demonstrating its wide range of applications.

Other Engines

• B5.9 G
• V28

The B5.9 G and V28 engines also utilize the Threaded Plug 3067424, further showcasing its compatibility across a diverse range of Cummins engines.

This detailed compatibility information ensures that technicians and users can confidently use the Threaded Plug 3067424 with the specified Cummins engines, knowing it is designed to fit and function effectively.

Role of Part 3067424 Threaded Plug in Engine Systems

The Threaded Plug 3067424 is an essential component in various engine systems, ensuring the integrity and functionality of several critical connections and pathways.

In the connection systems, the threaded plug secures and seals various joints, preventing leaks and ensuring that fluids and gases are directed correctly through the engine.

For the water outlet and cooler systems, the threaded plug plays a significant role in maintaining the pressure and flow of coolant. This ensures efficient heat dissipation from the engine, protecting it from overheating.

In the engine oil system, the threaded plug is used to seal off ports and passages, maintaining the correct oil pressure and ensuring that lubrication is consistently delivered to moving parts.

During engine installation, the kit often includes threaded plugs to seal off unused ports or to provide temporary seals during the installation process. This ensures that the engine is protected from contaminants during handling and setup.

In the fuel block connection, fuel control, and fuel manifold systems, the threaded plug is utilized to seal off sections that are not in use or to provide a secure connection point for fuel lines. This is vital for maintaining the integrity of the fuel system and ensuring that fuel is delivered efficiently to the injectors.

The fuel pump and fuel valve systems also benefit from the use of threaded plugs. They help in sealing off sections of the fuel lines that are not active, preventing fuel leakage and ensuring that the fuel system operates under the correct pressure.

For the injector systems, threaded plugs are often used to seal off injector ports that are not in use, ensuring that the fuel delivery system remains pressurized and functions correctly.

In diagnostic retrofit kits, threaded plugs may be included to seal off diagnostic ports that are not required for specific applications, ensuring that the engine’s electronic systems remain isolated and functional.

The modified century (12v) and (24v) kits often incorporate threaded plugs to seal off electrical connections that are not used, ensuring that the electrical system remains safe and efficient.

In the on-board spares system, threaded plugs are stored as essential components for making repairs or modifications to the engine on-site, ensuring that the engine can be quickly and effectively maintained.

The lubricating oil filter head system uses threaded plugs to seal off oil passages, ensuring that the lubrication system remains pressurized and that oil is efficiently filtered before being circulated through the engine.

In the module fuel control systems, threaded plugs are used to seal off fuel pathways that are not in use, ensuring that the fuel control module operates under the correct conditions.

For performance parts and plumbing fuel systems, threaded plugs are essential for sealing off sections that are not active, ensuring that the high-performance aspects of the engine are maintained without leaks or pressure loss.

In the fuel base, fuel injection, and raw water systems, threaded plugs ensure that all connections are secure and sealed, maintaining the efficiency and safety of these critical systems.

Finally, in the shutoff valve and fuel shutoff systems, threaded plugs are used to seal off valves that are not in use, ensuring that the shutoff mechanisms operate correctly and that the engine can be safely and effectively shut down when necessary.

Conclusion

The Threaded Plug 3067424 by Cummins is a critical component in maintaining the efficiency and reliability of commercial truck engines. Its role in sealing and pressure management across various engine systems underscores its importance in ensuring optimal performance and longevity of the vehicle. Understanding its features, benefits, and proper maintenance practices is essential for technicians and users to maximize the effectiveness of this part in their operations.