139473
O Ring Plug
Cummins®

Introduction

The Cummins 139473 O Ring Plug is a specialized component designed for use in commercial trucks. Its primary role is to provide a secure seal in various applications within the truck’s systems, ensuring the integrity of fluids and preventing leaks. This component is integral to maintaining the efficiency and reliability of the vehicle’s operations.

Basic Concepts of O Ring Plugs

An O Ring Plug is a type of sealing device that utilizes a circular rubber ring to create a tight seal. When compressed within a groove, the O Ring forms a barrier that prevents the passage of fluids or gases. These plugs are commonly used in mechanical systems to seal ports, openings, or passages where fluid containment is necessary. Their versatility and effectiveness make them a staple in various industries, including automotive and heavy-duty truck manufacturing ¹.

Purpose of the Cummins 139473 O Ring Plug

The Cummins 139473 O Ring Plug serves a specific function within the operation of a truck. It is designed to seal openings in the engine or other systems, ensuring that fluids remain contained within their designated pathways. This plug plays a role in maintaining the pressure and integrity of the system it is installed in, which is vital for the overall performance and longevity of the truck.

Key Features

The Cummins 139473 O Ring 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 longevity in demanding environments. The design specifications of this plug include precise dimensions that allow for a snug fit within the designated grooves, maximizing sealing efficiency. Additionally, any unique attributes, such as resistance to specific chemicals or enhanced flexibility, contribute to its reliable operation.

Benefits

Utilizing the Cummins 139473 O Ring Plug offers several advantages. Its design contributes to improved sealing efficiency, reducing the risk of leaks and maintaining system integrity. The durability of the materials used ensures that the plug can withstand harsh operating conditions, providing reliable performance over time. Furthermore, the reliability of this component helps in minimizing maintenance needs and enhancing the overall efficiency of the truck.

Installation Process

Proper installation of the Cummins 139473 O Ring Plug is crucial for ensuring its effectiveness. The process involves cleaning the groove where the plug will be installed to remove any debris or old sealant. The O Ring should be lubricated slightly to facilitate insertion without damage. Using the appropriate tools, the plug is then carefully placed into the groove, ensuring it is seated correctly. Verification of the seal’s integrity may be necessary to confirm proper installation.

Common Issues and Troubleshooting

Typical problems associated with O Ring Plugs include leaks or failure due to wear, damage, or incorrect installation. Troubleshooting these issues involves inspecting the plug for signs of wear or damage, ensuring it is correctly seated in the groove, and checking for any debris that may interfere with the seal. Replacement of the plug may be necessary if damage is detected, following the proper installation procedures to ensure a secure seal.

Maintenance Tips

Regular maintenance of the Cummins 139473 O Ring Plug is important for ensuring its longevity and optimal performance. This includes periodic inspection for signs of wear or damage, cleaning the area around the plug to prevent debris accumulation, and replacing the plug according to manufacturer guidelines or when signs of failure are observed. Adhering to these maintenance practices helps in preserving the integrity of the sealing system and the overall performance of the truck.

Cummins Overview

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 has established a strong reputation in the commercial truck industry for producing reliable and high-performance components. The company’s extensive product range and commitment to innovation and quality have made it a preferred choice for truck manufacturers and operators worldwide ².

Compatibility of O Ring Plug Part 139473 with Cummins Engines

The O Ring Plug part 139473, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is essential for maintaining the integrity of the engine’s sealing system, ensuring that there are no leaks and that the engine operates efficiently.

K Series Engines

• K19
• K38
• K50

The O Ring Plug part 139473 is compatible with the K series engines, including the K19, K38, and K50. These engines are known for their robust design and are often used in various industrial applications.

KTA Series Engines

• KTA19GC
• KTA38GC CM558

The KTA19GC and KTA38GC CM558 engines also utilize the O Ring Plug part 139473. These engines are typically used in power generation and marine applications, where reliability and durability are critical.

L Series Engines

• L10 MECHANICAL

The L10 MECHANICAL engine is another model that is compatible with the O Ring Plug part 139473. This engine is often used in heavy-duty applications, requiring a robust sealing solution.

M Series Engines

• M11 CELECT PLUS
• M11 MECHANICAL

Both the M11 CELECT PLUS and M11 MECHANICAL engines are designed to work with the O Ring Plug part 139473. These engines are commonly found in on-highway and vocational applications, where performance and efficiency are paramount.

N Series Engines

• N14 MECHANICAL

The N14 MECHANICAL engine is compatible with the O Ring Plug part 139473. This engine is known for its high power output and is often used in heavy-duty trucking and other demanding applications.

NH/NT Series Engines

• NH/NT 855

The NH/NT 855 engine is another model that can use the O Ring Plug part 139473. This engine is typically used in agricultural and construction equipment, where durability and reliability are essential.

QSK Series Engines

• QSK19 CM500
• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QST30 CM552

The QSK19 CM500, QSK50 CM2150 K107, QSK50 CM2150 MCRS, and QST30 CM552 engines are all compatible with the O Ring Plug part 139473. These engines are often used in power generation, marine, and heavy-duty applications, where sealing integrity is critical.

V Series Engines

• V28
• V903

The V28 and V903 engines are also designed to work with the O Ring Plug part 139473. These engines are commonly used in a variety of industrial and power generation applications, where reliability and performance are key.

By ensuring that the O Ring Plug part 139473 is used in these engines, operators can maintain the sealing integrity of their engines, leading to improved performance and longevity.

Role of Part 139473 O Ring Plug in Engine Systems

The Part 139473 O Ring Plug is an essential component in various engine systems, ensuring the integrity and efficiency of fluid transfer and system sealing. Here’s how it integrates with different components:

Fuel System Components

• Fuel Pump and Calibration: The O Ring Plug is used in the fuel pump and calibration systems to create a secure seal, preventing fuel leaks and ensuring accurate fuel delivery.
• Fuel Base Pump and Fuel D B. H. Pump: In these systems, the O Ring Plug helps maintain pressure and prevent fuel leakage, which is vital for consistent engine performance.
• Fuel Filter: It ensures that the fuel filter housing is sealed properly, preventing contaminants from entering the fuel system and ensuring clean fuel supply to the engine.
• Fuel Injection Pump: The O Ring Plug is critical in the fuel injection system for sealing connections, which is essential for precise fuel injection timing and quantity.

Lubrication System Components

• Lubricating Oil and Lubricating Oil Filter Head: In the lubrication system, the O Ring Plug seals the connections in the lubricating oil pathways, ensuring that oil is distributed evenly throughout the engine components without leaks.
• Oil Bypass Filter: It maintains the integrity of the oil bypass filter system, allowing oil to flow through the filter media while sealing off any alternate pathways.

Cooling System Components

• Radiator and Engine Cooling System: The O Ring Plug is used in the cooling system to seal connections in the radiator and throughout the engine cooling pathways, ensuring efficient heat dissipation and preventing coolant leaks.

Additional System Components

• AFC VS Fuel Pump: In this specific fuel pump variant, the O Ring Plug ensures a tight seal in the pump housing, critical for maintaining pump efficiency and preventing fuel leaks.
• Engine Installation Kit and Base Parts: During engine installation, the O Ring Plug is used to seal various connections, ensuring that the engine is installed with minimal risk of fluid leaks.
• On Board Spares and Lloyds Spares: The O Ring Plug is often included in spare parts kits to address potential sealing issues that may arise during engine maintenance or repair.

Miscellaneous Components

• Strato Hose and Pump, Fuel Uncalibrated: In these components, the O Ring Plug ensures that hoses and uncalibrated fuel pumps are sealed properly, maintaining system pressure and preventing fluid loss.
• Fuel & W-W Gov (Fuel and Water Separator Governor): It seals the connections in the fuel and water separator governor, ensuring that water is effectively separated from the fuel and that the governor functions correctly.

The Part 139473 O Ring Plug plays a significant role in maintaining the efficiency and reliability of various engine systems by ensuring secure seals and preventing fluid leaks.

Conclusion

The Cummins 139473 O Ring Plug is a critical component in maintaining the efficiency and reliability of commercial truck engines. Its role in sealing various systems ensures the integrity of fluid transfer and prevents leaks, contributing to the overall performance and longevity of the vehicle. Proper installation, regular maintenance, and understanding its compatibility with different Cummins engines are essential for maximizing the benefits of this component.