3684268
O Ring Seal
Cummins®

The O-Ring Seal 3684268, manufactured by Cummins, is a component designed to enhance the reliability and efficiency of commercial truck operations. Cummins, a well-established name in the automotive industry, produces a range of parts that contribute to the performance and longevity of heavy-duty vehicles. This Cummins part plays a role in maintaining the integrity of various systems within commercial trucks.

Basic Concepts of O-Ring Seals

O-Ring Seals are elastomeric rings with a circular cross-section, used to create seals in mechanical systems. They operate by being compressed between two surfaces, forming a barrier that prevents the leakage of fluids or gases. O-Ring Seals are versatile and can be found in a wide range of applications, from automotive to aerospace industries. Their effectiveness depends on factors such as material composition, size, and the specific environment in which they are used ¹.

Purpose of the 3684268 O-Ring Seal in Truck Operations

This part is specifically designed for use in commercial trucks, where it plays a role in sealing various components and systems. It is commonly applied in fuel systems, hydraulic systems, and engine components, where it helps maintain the integrity of seals under high pressure and temperature conditions. By ensuring that fluids and gases remain contained within their designated pathways, the 3684268 O-Ring Seal contributes to the efficient operation of the truck.

Key Features of the 3684268 O-Ring Seal

This part is characterized by its robust design and material composition, which are tailored to meet the demanding conditions of heavy-duty truck environments. Made from high-quality elastomers, it offers excellent resistance to wear, tear, and environmental factors such as temperature fluctuations and chemical exposure. Its precise dimensions ensure a snug fit in applications, enhancing its sealing capabilities ².

Benefits of Using the 3684268 O-Ring Seal

Utilizing this part in truck operations offers several advantages. Its superior sealing performance helps prevent leaks, which can lead to efficiency losses and potential safety hazards. The seal’s durability ensures long-term reliability, reducing the need for frequent replacements. Additionally, its resistance to various environmental factors makes it suitable for a wide range of operating conditions, contributing to the overall performance and longevity of the truck.

Installation and Maintenance Guidelines

Proper installation of the 3684268 O-Ring Seal is crucial for its effective performance. It should be installed in clean, dry conditions to prevent contamination that could compromise its sealing capabilities. Regular inspection and maintenance are recommended to ensure the seal remains in good condition. This includes checking for signs of wear or damage and replacing the seal as necessary to maintain optimal performance ³.

Troubleshooting Common Issues

Common issues with O-Ring Seals in truck applications include leaks, which can be caused by improper installation, wear and tear, or exposure to incompatible fluids. Diagnosing these issues involves inspecting the seal for physical damage and ensuring it is correctly installed. Resolving these issues may require replacing the seal or addressing underlying problems such as misalignment or contamination.

Cummins: A Brief Overview

Cummins is a leading manufacturer in the commercial truck industry, known for its wide range of high-quality parts and engines. With a history of innovation and commitment to excellence, Cummins has established a strong reputation for producing reliable and efficient components that contribute to the performance and longevity of heavy-duty vehicles. The company’s product range includes engines, filtration systems, and aftermarket parts, all designed to meet the demanding requirements of commercial truck operations.

O-Ring Seal 3684268 Compatibility with Cummins Engines

This part is designed to fit a variety of Cummins engines. Here’s how it fits with the listed engines:

ISB and ISF Series Engines

• ISB4.5 CM2350 B104
• ISF3.8 CM2220 AN

This part is compatible with the ISB and ISF series engines, which are known for their robust performance and reliability in various applications. This seal ensures that the engine’s internal components remain sealed, preventing any fluid leaks that could compromise engine performance.

ISG and QSF Series Engines

• ISG12 CM2880 G107
• QSF2.8 CM2880 F104
• QSF2.8 CM2880 F105
• QSF2.8 CM2880 F108
• QSF2.8 CM2880 F114

This part is also suitable for the ISG and QSF series engines. These engines are designed for high-performance applications, and the seal ensures that the engine maintains its operational integrity by preventing leaks in critical areas.

QSK Series Engines

• QSK19 CM2350 K105
• QSK60 CM850 MCRS
• QSK95 CM2350 K111
• QSK95 CM2350 K113

This part fits seamlessly with the QSK series engines, which are known for their power and efficiency. This seal is essential for maintaining the engine’s performance and longevity by preventing leaks and ensuring that all components operate as intended.

X Series Engines

• X11 CM2670 X126B
• X12 CM2670 X121B
• X13 CM2670 X122B

This part is compatible with the X series engines, which are designed for heavy-duty applications. This seal ensures that the engine remains sealed and operates efficiently, even under the most demanding conditions.

Z Series Engines

• Z14 CM2670 Z103B

This part is also suitable for the Z series engines, which are engineered for specific applications requiring high performance and reliability. This seal plays a role in maintaining the engine’s integrity by preventing leaks and ensuring optimal operation.

Role of Part 3684268 O-Ring Seal in Engine Systems

This part is integral to the reliable operation of various engine systems. It ensures the integrity of fluid pathways and the prevention of leaks, which is essential for maintaining system efficiency and performance.

Cylinder Head and Camshaft

In the cylinder head and camshaft assembly, the O-Ring Seal is used to create a tight seal around components that interface with fluid systems. This ensures that engine coolant and lubricating oil do not escape, maintaining optimal temperatures and reducing friction within the engine.

Turbocharger and Related Systems

For the turbocharger, the O-Ring Seal is employed in the turbocharger gasket kit and turbocharger housing kit to seal the connections between the turbocharger and its plumbing. This is vital for maintaining the pressure integrity of the charge air system and ensuring efficient turbocharger operation.

Cooling and Lubrication Systems

In the engine coolant vent and engine lubricating primer, the O-Ring Seal prevents leaks that could lead to system failures. Similarly, in the lubricating oil cooler module, it ensures that oil is effectively cooled without any loss, which is crucial for the longevity of engine components.

Exhaust Recirculation Systems

For the exhaust recirculation cooler kit and exhaust recirculation water plumbing, the O-Ring Seal is used to maintain the seal at connection points. This ensures that recirculated exhaust gases are effectively managed, contributing to reduced emissions and improved engine performance.

Fuel and Hose Systems

In the fuel control module and various hose kits, the O-Ring Seal is critical for maintaining the integrity of fuel lines. This prevents fuel leaks, which are hazardous and can affect engine performance.

Thermostat Housing and Arrangements

The thermostat housing and its arrangement utilize the O-Ring Seal to ensure that coolant flow is regulated without any leaks. This is important for maintaining consistent engine temperatures.

Additional Applications

The O-Ring Seal is also found in the orifice plug, threaded plug, and parts distribution center kit, where it ensures that small fluid pathways remain sealed. In the water pump, it helps maintain the seal around impeller shafts and connections, ensuring efficient coolant circulation.

Overall, the application of this part across these systems underscores its importance in maintaining the operational integrity and efficiency of engine components.

Conclusion

The 3684268 O-Ring Seal by Cummins is a critical component in the maintenance and efficiency of commercial truck operations. Its robust design, compatibility with various Cummins engines, and role in sealing critical engine systems highlight its importance in ensuring the reliability and performance of heavy-duty vehicles.