3068888
O Ring Seal
Cummins®

The Cummins 3068888 O-Ring Seal is a component designed to ensure the integrity of fluid systems within commercial trucks. Its role is to prevent leaks and maintain system efficiency, which is vital for the reliable operation of these vehicles. Understanding the function and significance of this O-Ring Seal can contribute to better maintenance practices and enhanced truck performance ¹.

Basic Concepts of O-Ring Seals

An O-Ring Seal is a type of gasket with a circular cross-section, designed to create a seal between two or more parts. It functions by being compressed within a groove, forming a barrier that prevents the escape of fluids or gases. O-Ring Seals are widely used in mechanical systems due to their simplicity, effectiveness, and versatility in various applications ².

Purpose of the Cummins 3068888 O-Ring Seal

This Cummins part is specifically engineered to serve within the fluid systems of commercial trucks. It is positioned in areas where fluid dynamics and pressure require a reliable seal to prevent leaks. This O-Ring Seal contributes to the efficient operation of the truck by ensuring that fluids remain within their intended pathways, thus maintaining system pressure and performance ³.

Key Features

The 3068888 is characterized by its material composition, typically made from durable elastomers that can withstand a range of temperatures and pressures. Its design specifications include precise dimensions to fit within the designated grooves and ensure a snug fit. Unique characteristics may include resistance to specific chemicals or enhanced flexibility to accommodate dynamic environments ⁴.

Benefits of Using the Cummins 3068888 O-Ring Seal

Utilizing this part offers several advantages. It provides improved sealing efficiency, which is crucial for maintaining system integrity. Its durability ensures long-term performance, even under demanding conditions. Additionally, the seal’s resistance to various environmental factors contributes to its reliability and longevity within commercial truck applications ¹.

Installation Guidelines

To install the 3068888, it is important to follow a systematic approach. Begin by ensuring the groove is clean and free of debris. Lubricate the O-Ring Seal to facilitate installation without damage. Carefully place the seal into the groove, ensuring it is seated correctly. Assemble the components and check for proper alignment before final tightening ².

Troubleshooting Common Issues

Common issues with O-Ring Seals include leaks and wear. If a leak is detected, inspect the seal for signs of damage or improper seating. Wear may be addressed by replacing the seal with a new one of the correct specifications. Regular inspections can help identify potential problems before they lead to significant issues ³.

Maintenance Tips

Regular maintenance of the 3068888 involves periodic inspections for signs of wear or damage. Cleaning the seal and its groove can prevent contamination that may lead to failure. Additionally, ensuring that the seal is correctly installed and that system pressures are within specified limits can contribute to the seal’s longevity and performance ⁴.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a strong reputation in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range serves various industries, providing reliable and efficient power solutions.

Compatibility with Cummins Engines

The O-Ring Seal part number 3068888, manufactured by Cummins, is designed to fit a variety of Cummins engines. This seal is crucial for ensuring that the engine operates efficiently by preventing leaks and maintaining pressure integrity.

K19, K38, K50 Engines

The 3068888 is compatible with the K19, K38, and K50 engines. These engines are known for their robust design and reliability, often used in heavy-duty applications. The seal fits around various components within these engines, ensuring that there are no leaks at the points where the seal is installed. This is particularly important in maintaining the engine’s performance and longevity.

N14 CELECT PLUS, N14 MECHANICAL Engines

For the N14 CELECT PLUS and N14 MECHANICAL engines, the 3068888 is engineered to fit seamlessly. These engines are equipped with advanced technology and are widely used in both on-highway and off-highway applications. The seal’s precision fit helps in maintaining the engine’s efficiency and reducing maintenance needs by preventing oil and fluid leaks.

NH/NT 855 Engines

The NH/NT 855 engines also benefit from the 3068888. These engines are known for their high power output and durability, making them suitable for demanding applications. The seal ensures that the engine’s internal components are properly sealed, which is essential for maintaining optimal performance and preventing potential engine damage.

QSN14 CM876 N103 Engines

Lastly, the QSN14 CM876 N103 engines are designed to work with the 3068888. These engines are part of the Cummins Quantum Series, known for their advanced features and high performance. The seal’s compatibility with these engines ensures that there are no leaks in critical areas, which is vital for the engine’s overall efficiency and reliability.

Role of Part 3068888 O-Ring Seal in Engine Systems

The 3068888 is instrumental in maintaining the integrity and efficiency of various engine systems. Its application spans across multiple components, ensuring that each system operates within optimal parameters.

Aftercooler Systems

In the aftercooler core, the O-Ring Seal is employed to prevent coolant leaks, ensuring efficient heat exchange and maintaining the desired temperature of the air charge. Similarly, in the aftercooler left bank return connection and aftercooler right bank return connection, the seal plays a vital role in maintaining the pressure and flow of the coolant, which is essential for the performance of the aftercooler plumbing.

Lubrication Systems

The O-Ring Seal is utilized in the lubricating oil filter and lubricating oil pump to ensure that oil does not escape, maintaining the necessary lubrication for moving parts and preventing wear and tear. In the oil control valve mounting plumbing, it ensures that oil flows correctly to the various engine components, contributing to the overall efficiency of the lubrication system.

Fuel Systems

In the fuel connection and fuel governor, the O-Ring Seal is critical for maintaining the integrity of the fuel lines, preventing leaks that could lead to inefficient fuel delivery or even safety hazards. Its use in the injector plumbing and injectors ensures that fuel is delivered precisely and consistently, which is vital for engine performance.

Miscellaneous Components

The O-Ring Seal is also found in the cam follower housing and camshaft, where it helps in maintaining the seal around moving parts, ensuring smooth operation and longevity of the components. In the check valve and connecting rod and piston, it prevents unwanted fluid or gas leakage, which could otherwise lead to inefficient engine operation.

Specialized Connections

In the EBM: Pump and LB LTA connections, as well as the RB LTA connections, the O-Ring Seal is used to ensure that the connections remain tight and leak-free, which is essential for the proper functioning of these systems. In the left bank aftercooler plumbing and right bank aftercooler plumbing, it ensures that the aftercooler systems operate efficiently without leaks.

Sensors and Additional Components

The O-Ring Seal is also utilized in the oil pressure sensor and viscosity sensor to maintain the accuracy of the readings by preventing any fluid leakage around the sensor. In the viscosity sensor kit, it ensures that all components within the kit function as intended, providing reliable data for engine management.

Other Applications

In components like the hose vent, male union, and kit, the O-Ring Seal is used to ensure that these parts are securely sealed, preventing any unwanted fluid or gas escape, which could affect the performance and safety of the engine.

Conclusion

The 3068888, through its application in these various components, plays a significant role in ensuring the efficient and safe operation of engine systems. Its compatibility with a wide range of Cummins engines underscores its importance in maintaining the performance and reliability of commercial trucks.