4066112
O-Ring Seal
Cummins®

Introduction

The Cummins 4066112 O-Ring Seal is a component designed to ensure the integrity of fluid systems within commercial trucks. Its purpose is to provide a reliable seal in various applications, contributing to the overall efficiency and safety of truck operations. Understanding the role and significance of this O-Ring Seal is vital for maintaining the performance and longevity of commercial vehicles.

Basic Concepts of O-Ring Seals

An O-Ring Seal is a toroidal (ring-shaped) elastomer with a circular cross-section, used to create a seal between two or more parts. It functions by being compressed within a groove, forming a barrier that prevents the leakage of fluids or gases. O-Rings are widely applied in mechanical systems to seal dynamic and static applications. Common materials for O-Rings include nitrile rubber, fluorocarbon, and silicone, each offering distinct properties such as resistance to chemicals, temperature, and compression set ¹.

Role of the 4066112 O-Ring Seal in Truck Operation

This Cummins part plays a specific role in the operation of commercial trucks by ensuring the integrity of fluid systems. It is associated with components such as fuel injectors, where it helps maintain the seal around the injector body, preventing fuel leaks and ensuring efficient fuel delivery. This seal is crucial for the proper functioning of the fuel system, contributing to the truck’s overall performance and reliability.

Key Features of the 4066112 O-Ring Seal

The design and construction of the 4066112 O-Ring Seal include features that make it suitable for demanding applications. It is crafted from materials that offer durability and resistance to various conditions, including high temperatures and exposure to chemicals. The seal is engineered to withstand the pressures and movements inherent in truck operations, ensuring a consistent and reliable seal. Its compatibility with other materials used in truck components further enhances its effectiveness.

Benefits of Using the 4066112 O-Ring Seal

The advantages provided by the 4066112 O-Ring Seal include improved sealing efficiency, which contributes to the overall performance of the truck’s fluid systems. Its durability ensures longevity, reducing the need for frequent replacements. The seal’s reliability in harsh operating environments makes it a valuable component for maintaining the integrity of critical systems within commercial trucks.

Installation and Replacement Guidelines

Proper installation and replacement of the 4066112 O-Ring Seal are crucial for ensuring optimal performance. Step-by-step instructions should be followed to ensure the seal is correctly sized and fitted within the designated groove. Attention to detail during installation helps prevent leaks and ensures the seal functions as intended, contributing to the truck’s efficiency and safety.

Troubleshooting Common Issues

Common problems associated with O-Ring Seals, such as leaks or failures, can often be traced back to issues like incorrect sizing, damage during installation, or degradation over time. Troubleshooting steps may include inspecting the seal for signs of wear or damage, ensuring it is correctly installed, and replacing it if necessary. Regular inspections can help identify potential issues before they lead to more significant problems.

Maintenance Tips

Regular maintenance of the 4066112 O-Ring Seal is important for prolonging its lifespan and ensuring consistent performance. This includes periodic inspections for signs of wear or damage, cleaning the seal and its groove to remove contaminants, and replacing the seal according to the manufacturer’s recommendations or when signs of degradation are observed. Proper maintenance contributes to the reliability and efficiency of the truck’s fluid systems.

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 plays a significant role in the commercial truck industry. The company’s focus on developing reliable and efficient components, like the 4066112 O-Ring Seal, underscores its dedication to enhancing the performance and durability of commercial vehicles ².

Cummins O-Ring Seal 4066112 Compatibility with Engine Models

The Cummins O-Ring Seal part number 4066112 is designed to fit a variety of Cummins engine models. This seal is integral for ensuring the integrity of fluid systems within the engines, preventing leaks and maintaining operational efficiency. Below is a detailed overview of the engine models with which this O-Ring Seal is compatible.

K Series Engines

• K38
• K50

These K series engines are known for their robust design and reliability, often used in heavy-duty applications. The O-Ring Seal 4066112 is engineered to fit seamlessly within these engines, providing a critical seal that helps maintain system pressure and prevent fluid leakage.

KTA Series Engines

• KTA38GC CM558

The KTA38GC CM558 engine is a high-performance model, often utilized in demanding industrial applications. The O-Ring Seal 4066112 is specifically designed to fit this engine, ensuring that it can withstand the high pressures and temperatures typical of such environments.

QSK Series Engines

The QSK series engines are known for their versatility and efficiency. The O-Ring Seal 4066112 is compatible with several models within this series:

• QSK19 CM850 MCRS
• QSK38 CM2150 MCRS
• QSK38 CM850 MCRS
• QSK45 CM500
• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108
• QSK60 CM500
• QSK60 CM850 MCRS
• QSK60G
• QSK78 CM500
• QSK95 CM2350 K111
• QSK95 CM2350 K113

These engines are used across a range of applications, from marine to industrial and power generation. The O-Ring Seal 4066112 is meticulously designed to fit these engines, providing a reliable seal that helps maintain the performance and longevity of the engines.

The compatibility of the O-Ring Seal 4066112 with these Cummins engines underscores its versatility and importance in maintaining the operational integrity of the fluid systems within these engines.

Role of Part 4066112 O-Ring Seal in Engine Systems

The part 4066112 O-Ring Seal is instrumental in ensuring the integrity and efficiency of various engine systems by providing a reliable seal in critical junctions. Its application spans across multiple components, enhancing performance and preventing leaks.

Aftercooler and Intercooler Systems

In aftercooler and intercooler water plumbing systems, the O-Ring Seal ensures that coolant flows smoothly without any leakage. This is vital for maintaining optimal temperatures and enhancing the efficiency of the cooling process.

Thermostat Housing and Water Transfer Tubes

The O-Ring Seal is used in thermostat housing and thermostat top-level assembly housing to create a tight seal, preventing coolant loss and ensuring consistent engine temperature regulation. Additionally, in water transfer tubes and their connections (both left and right), the seal prevents leaks, maintaining the efficiency of the water transfer system.

Manifold and Exhaust Systems

Within the intake manifold and exhaust systems, the O-Ring Seal plays a significant role in sealing connections, thereby ensuring that air and exhaust gases flow correctly without any unwanted leaks. This contributes to better engine performance and reduced emissions.

Gasket Sets and Overhaul Kits

In both lower and upper engine gasket sets, as well as marine upper engine gasket sets and overhaul gasket sets, the O-Ring Seal is essential for creating a robust seal between various engine components. This is particularly important in overhaul kits where precise sealing is required to restore engine performance to its original specifications.

Heat Exchanger and Auxiliary Cooling Systems

For heat exchangers and auxiliary cooling systems, the O-Ring Seal ensures that the cooling fluid circulates efficiently without any leakage. This is important for dissipating heat effectively and protecting engine components from overheating.

Water Inlet and Outlet Connections

At the water inlet connection and water outlet, the O-Ring Seal ensures that the entry and exit points for coolant are securely sealed. This prevents any coolant loss and maintains the pressure within the cooling system, which is essential for efficient heat management.

Cover and Valve Systems

In cover and valve systems, the O-Ring Seal is used to ensure that these components are tightly sealed, preventing any fluid or gas leakage. This is important for maintaining the integrity of the engine’s operating environment.

The part 4066112 O-Ring Seal, through its applications in these various engine systems, plays a significant role in ensuring the overall efficiency, performance, and reliability of the engine.

Conclusion

The Cummins 4066112 O-Ring Seal is a critical component in maintaining the integrity and efficiency of fluid systems within commercial trucks and Cummins engines. Its design, durability, and compatibility with various engine models make it an essential part for ensuring reliable operation and performance. Proper installation, maintenance, and understanding of its role in different engine systems are key to maximizing the benefits of this O-Ring Seal.