4931643
Pipe Plug
Cummins®

The Cummins 4931643 Pipe Plug is a component designed for use in commercial trucks, playing a role in maintaining the integrity of fluid systems within these vehicles. Cummins Inc., a well-established manufacturer in the commercial truck industry, produces this pipe plug. Understanding the function and importance of this component is key to ensuring the efficient operation and longevity of commercial trucks.

Basic Concepts of Pipe Plugs

A pipe plug is a device used to seal the end of a pipe or a fluid passage, preventing the escape of fluids or gases. In the context of heavy-duty trucks, pipe plugs are vital for maintaining the pressure and purity of fluid systems, including engine oil, coolant, and fuel systems. They operate by providing a secure, leak-proof closure that can withstand the pressures and temperatures encountered in these systems ¹.

Purpose of the 4931643 Pipe Plug

The Cummins 4931643 Pipe Plug serves a specific function within the fluid systems of a truck. It is designed to seal off certain passages or ports in the engine or other fluid systems, ensuring that fluids remain contained within their designated pathways. This helps in maintaining system pressure, preventing contamination, and ensuring the efficient operation of the truck’s engine and other fluid-dependent systems ².

Key Features

The Cummins 4931643 Pipe Plug is characterized by several key features that enhance its performance. It is made from durable materials that can withstand high temperatures and pressures, ensuring long-term reliability. The design of the plug allows for a secure fit within the pipe or passage it seals, minimizing the risk of leaks. Additionally, it may feature threading or other mechanisms to ensure a tight seal.

Benefits

Using the Cummins 4931643 Pipe Plug offers several advantages. It contributes to the overall integrity of the fluid system by providing a reliable seal, which helps in maintaining system pressure and preventing leaks. This, in turn, can lead to improved efficiency and longevity of the truck’s engine and other fluid-dependent systems. The durable construction of the plug also ensures that it can withstand the demanding conditions encountered in commercial truck operations ³.

Installation Process

Installing the Cummins 4931643 Pipe Plug requires careful attention to ensure a secure fit. The process typically involves cleaning the pipe or passage to be sealed, inserting the plug, and then tightening it to the appropriate specification using the necessary tools. It is important to follow the manufacturer’s guidelines to ensure the plug is installed correctly and functions as intended.

Troubleshooting Common Issues

Common issues with pipe plugs, such as leaks or corrosion, can often be traced back to improper installation or environmental factors. Diagnosing these issues may involve inspecting the plug and the surrounding area for signs of wear, corrosion, or damage. Resolving these issues typically involves replacing the plug or addressing the underlying cause, such as corrosion or improper fit.

Maintenance Tips

Regular maintenance of the Cummins 4931643 Pipe Plug is important for ensuring its reliable operation. This may include periodic inspection for signs of wear or damage, cleaning the plug and surrounding area to prevent buildup, and ensuring that it remains securely fitted. Following the manufacturer’s recommendations for maintenance can help in prolonging the life of the plug and ensuring the efficient operation of the truck’s fluid systems.

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 history of innovation and quality, Cummins has established a strong reputation for producing reliable and efficient components for commercial vehicles. The company’s commitment to quality and performance is evident in its product range, which is designed to meet the demanding requirements of commercial truck operations.

Cummins Engine Part 4931643: Pipe Plug Compatibility

The Cummins Pipe Plug part number 4931643 is a critical component designed to fit seamlessly within various Cummins engine models. This part is essential for maintaining the integrity of the engine’s exhaust system, ensuring that it operates efficiently and safely. Below is a detailed breakdown of the engines with which this pipe plug is compatible.

Compatible Engines

4B3.9 Series

• 4B3.9

6B5.9 Series

• 6B5.9

6C8.3 Series

• 6C8.3
• 6C8.3 G

B3.9 Series

• B3.9 G

B4.5 Series

• B4.5
• B4.5 RGT

B5.6 Series

• B5.6 CM2670 B152B

B5.9 Series

• B5.9
• B5.9 CM2670 B166C
• B5.9 G
• B5.9 GAS PLUS CM556

B6.7 Series

• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125
• B6.7S

C Series

• C GAS PLUS CM556

F3.8 Series

• F3.8 CM2620 F137B

F4.5 Series

• F4.5 CM2620 F139B

G5.9 Series

• G5.9
• G5.9 CM558

G8.3 Series

• G8.3
• G8.3 CM558
• GTA8.3 CM558

ISB Series

• ISB CM2150

This part number 4931643 is meticulously engineered to ensure a perfect fit across these diverse engine models, providing a reliable sealing solution that prevents leaks and maintains system pressure.

Role of Part 4931643 Pipe Plug in Engine Systems

The part 4931643 Pipe Plug is integral to the efficient operation of various engine systems. It is commonly utilized in the Air Intake Heater system to ensure that the air entering the engine is at an optimal temperature, enhancing combustion efficiency. In the Air Intake Manifold, the pipe plug helps maintain the integrity of the air-fuel mixture by preventing leaks and ensuring consistent airflow.

Within the Auxiliary Cooling System, the pipe plug is employed to seal off sections of the cooling passages when modifications or maintenance are performed, ensuring that the coolant flow is directed appropriately. The Camshaft system may also utilize this component to seal oil passages, maintaining proper lubrication and reducing the risk of contamination.

For the Compressor Conversion Kit, the pipe plug is essential in sealing off unused or modified compressor passages, ensuring that the system operates efficiently without leaks. In the Coolant Temperature Sensor system, it helps in maintaining a sealed environment around the sensor, ensuring accurate temperature readings.

The Cover Plate often incorporates the pipe plug to seal off areas where components are removed or replaced, maintaining system integrity. In the Cylinder Block Coolant Plumbing, the pipe plug is used to seal off coolant passages that are not in use, preventing coolant loss and ensuring efficient cooling.

In the Engine Instrumentation system, the pipe plug may be used to seal off pressure or temperature sensor ports when not in use, ensuring accurate readings and system reliability. The Exhaust Manifold may also utilize this component to seal off sections during modifications or repairs, ensuring that exhaust gases are directed correctly.

The Fuel Control Module and Fuel Pump systems may use the pipe plug to seal off fuel lines or passages, ensuring that fuel delivery is consistent and leak-free. For the Kit On-board Spares and Kit, On Board Spares, the pipe plug is often included to seal off various system components during storage or transportation.

The Lifting Bracket system may incorporate the pipe plug to seal off any fluid passages when the engine is being moved or stored. In the Lube Oil Cooler and Lubricating Oil Filter Cooler systems, the pipe plug is used to seal off oil passages, ensuring proper lubrication and cooling.

For the Short 6-B Block, Short Block 6Cart, and Short Engine Kit, the pipe plug is essential in sealing off various fluid passages and ensuring that the engine components operate efficiently. In the Water Connection, Water Inlet, and Water Inlet Connection systems, the pipe plug is used to seal off water passages, ensuring that the cooling system remains intact and functions correctly.

Finally, in the Water Inlet Connection Plumbing and Water Outlet Connection systems, the pipe plug is utilized to seal off sections of the plumbing, ensuring that water flow is directed appropriately and that the cooling system operates efficiently.

Conclusion

The Cummins 4931643 Pipe Plug is a critical component in the maintenance and operation of commercial truck fluid systems. Its role in sealing various passages and ports ensures the integrity of engine systems, contributing to the overall efficiency and longevity of the vehicle. Proper installation, maintenance, and understanding of its function are essential for maximizing the benefits of this part.