4944473
Threaded Plug
Cummins®

The 4944473 Threaded Plug is a component manufactured by Cummins, a well-established name in the commercial truck industry. This Cummins part is designed for use in commercial trucks, where it serves a specific function within the vehicle’s mechanical 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 secure seal that prevents the escape of fluids or gases. In mechanical systems, threaded plugs are commonly employed to cap off unused ports, seal off passages, or provide a temporary closure during maintenance or repair procedures ¹.

Purpose of the 4944473 Threaded Plug

This part plays a role in the operation of a truck by sealing specific openings within the engine or other systems. Its primary function is to maintain system integrity by preventing the leakage of fluids or gases, which could otherwise lead to inefficiencies or damage ².

Key Features

The 4944473 Threaded Plug is characterized by several key features that enhance its performance and durability. These include its material composition, which is typically a robust metal alloy resistant to corrosion and wear. The thread size is designed to match the specific application, ensuring a secure fit. Additionally, the plug’s design specifications may include features such as a gasket seating surface to improve the seal or a hex head for easy installation and removal ³.

Benefits

Using this Cummins part offers several advantages. It contributes to improved system integrity by effectively sealing openings, which helps prevent fluid leaks. This, in turn, supports overall engine efficiency by maintaining proper fluid levels and pressures within the system ⁴.

Installation Process

Installing the 4944473 Threaded Plug requires following a specific procedure to ensure a secure fit. The process typically involves cleaning the threading area, applying a thread sealant if necessary, and screwing the plug into place using the appropriate tools. It is important to achieve the correct torque specification to ensure the plug is properly seated without over-tightening, which could damage the threads ¹.

Common Issues and Troubleshooting

Common problems associated with threaded plugs include leaks due to improper installation or corrosion. Troubleshooting these issues may involve inspecting the plug and threading for damage, ensuring the correct torque was used during installation, and applying a compatible thread sealant if leaks persist ².

Maintenance Tips

To prolong the lifespan of the 4944473 Threaded Plug, regular maintenance practices are recommended. This includes periodic inspection for signs of wear or damage, cleaning the plug and threading area to remove any debris or corrosion, and reapplying thread sealant as needed during maintenance intervals ³.

Replacement Guidelines

Determining when to replace the 4944473 Threaded Plug involves assessing its condition during regular inspections. Signs that may indicate a need for replacement include visible damage to the plug or threading, persistent leaks despite proper maintenance, or if the plug shows signs of significant wear that could compromise its sealing ability ⁴.

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of products including engines, filtration systems, and aftermarket parts. With a strong reputation for quality and reliability, Cummins has been a trusted name in the industry for many years, providing solutions that enhance the performance and efficiency of commercial vehicles.

Threaded Plug 4944473 Compatibility with Cummins Engines

The Threaded Plug part number 4944473, manufactured by Cummins, is designed to fit seamlessly with several of their engine models. This plug is integral to the engine’s operation, ensuring that specific components are sealed and protected. Here is a detailed look at the compatibility of this part with various Cummins engines:

B3.3 Engine

The B3.3 engine is a robust and reliable model that benefits from the precision fit of the 4944473 Threaded Plug. This plug is essential for maintaining the integrity of the engine’s internal systems, ensuring that there are no leaks or unwanted intrusions.

QSB3.3 CM2150 and QSB3.3 CM2250 EC Engines

The QSB3.3 CM2150 and QSB3.3 CM2250 EC engines are part of Cummins’ QSB series, known for their durability and efficiency. The 4944473 Threaded Plug is specifically engineered to fit these models, providing a critical seal that helps maintain engine performance and longevity.

In both the QSB3.3 CM2150 and QSB3.3 CM2250 EC engines, the 4944473 Threaded Plug ensures that the engine’s internal components remain protected from contaminants and wear, contributing to the overall reliability of the engine.

By using the 4944473 Threaded Plug, engine owners can be confident that their B3.3, QSB3.3 CM2150, and QSB3.3 CM2250 EC engines are operating at peak efficiency, with all necessary components securely sealed and protected.

Role of Part 4944473 Threaded Plug in Engine Systems

The 4944473 Threaded Plug is a component in various engine systems, serving multiple functions that contribute to the overall efficiency and reliability of the engine.

In the long block assembly, the Threaded Plug is often used to seal off unused passages or ports. This ensures that no fluids or gases escape, maintaining the integrity of the engine’s internal environment.

Within the plumbing systems of an engine, the Threaded Plug plays a significant role in directing the flow of fluids. Whether it’s sealing off a section of the oil system or preventing coolant from entering an area where it shouldn’t, the plug helps maintain the correct pathways for fluid circulation.

The engine monitoring system relies on accurate data from various sensors to function correctly. The Threaded Plug is used to seal off areas where sensors are not installed, ensuring that the monitoring system receives precise readings without interference from external factors.

In conjunction with the oil pressure switch, the Threaded Plug can be employed to manage the oil flow within the engine. By sealing specific passages, it helps maintain consistent oil pressure, which is vital for the lubrication of moving parts.

Similarly, in the coolant temperature sensor and water pump systems, the Threaded Plug ensures that coolant flows through the designated pathways. This is important for accurate temperature readings and efficient cooling of the engine components.

The Threaded Plug also works with the sensor and pump systems to maintain the integrity of the fluid pathways. By sealing off unnecessary passages, it ensures that sensors receive accurate data and pumps operate efficiently.

Conclusion

In summary, the 4944473 Threaded Plug is a versatile component that enhances the functionality and reliability of various engine systems by ensuring proper fluid management and accurate sensor readings.