3906698
Rectangular Ring Seal
Cummins®

The 3906698 Rectangular Ring Seal is a component manufactured by Cummins, a well-established name in the commercial truck industry. This seal is designed for use in commercial trucks, where it contributes to the reliable operation of various systems.

Basic Concepts of Rectangular Ring Seals

Rectangular ring seals are mechanical components used to create a seal between two surfaces. They function by filling the gap between mating parts, preventing the leakage of fluids or gases. These seals are commonly employed in applications where there is relative motion between the sealing surfaces, such as in engine and transmission systems ¹.

Purpose of the 3906698 Rectangular Ring Seal in Truck Operations

In the context of commercial trucks, the 3906698 Rectangular Ring Seal plays a role in maintaining the integrity of seals within the engine or transmission system. It helps to prevent leaks that could lead to system failure or reduced efficiency. By ensuring a tight seal, it contributes to the overall performance and longevity of the truck’s mechanical systems ².

Key Features of the 3906698 Rectangular Ring Seal

The 3906698 Rectangular Ring Seal is characterized by its specific design and material properties. It is crafted from materials that offer durability and resistance to the operating conditions found in commercial trucks. The seal’s dimensions are tailored to fit precisely within the truck’s engine or transmission system, ensuring a snug fit and effective sealing ³.

Benefits of Using the 3906698 Rectangular Ring Seal

The use of the 3906698 Rectangular Ring Seal offers several advantages. It provides enhanced sealing performance, which is vital for the efficient operation of the truck’s systems. The seal’s durability ensures it can withstand the rigors of commercial use, and its resistance to various operating conditions contributes to its longevity and reliability.

Installation Considerations

Proper installation of the 3906698 Rectangular Ring Seal is important for its performance and lifespan. Guidelines for installation include ensuring the sealing surfaces are clean and free of debris, using the correct tools to avoid damage to the seal, and following the manufacturer’s recommendations for torque and alignment.

Troubleshooting Common Issues

Common issues with rectangular ring seals may include leaks or seal failure. Troubleshooting steps can involve inspecting the seal for signs of wear or damage, checking the mating surfaces for irregularities, and ensuring that the seal is correctly installed. Addressing these issues promptly can help maintain the seal’s effectiveness and prevent further problems.

Maintenance Tips

Regular maintenance of the 3906698 Rectangular Ring Seal can help extend its service life and maintain sealing efficiency. This includes periodic inspection for signs of wear, ensuring that the seal remains properly lubricated if required, and replacing the seal according to the manufacturer’s maintenance schedule or as needed based on operational conditions.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a strong presence in the commercial truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s product range includes components and systems that are integral to the performance and reliability of commercial vehicles.

Cummins Rectangular Ring Seal Part 3906698 Compatibility

The Cummins Rectangular Ring Seal part number 3906698 is designed to fit a variety of Cummins engines, ensuring a secure seal that prevents leaks and maintains optimal engine performance. Below is a detailed overview of the engines with which this part is compatible:

• 4B3.9
• 6B5.9
• B3.9 G
• B4.5
• B4.5 RGT
• B5.6 CM2670 B152B
• B5.9 CM2670 B166C
• B5.9 G
• B5.9 GAS PLUS CM556
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125
• B6.7S
• G5.9
• G5.9 CM558
• ISB (Chrysler)
• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB3.9 CM2220 B107
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B127

Role of Part 3906698 Rectangular Ring Seal in Engine Systems

The 3906698 Rectangular Ring Seal is an essential component in various engine systems, providing reliable sealing solutions that contribute to the overall performance and longevity of the engine. This seal is often integrated into several key components to ensure optimal functionality.

Integration with Engine Gaskets and Seals

In the Complete Engine Gasket Kit and Full Engine Gasket Set, the 3906698 Rectangular Ring Seal plays a significant role in maintaining the integrity of the sealing surfaces. It ensures that there are no leaks between mating parts, which is vital for maintaining proper compression and preventing the escape of fluids or gases.

Application in Cylinder Block and Gear Covers

When installed in the Cylinder Block, this seal helps to create a tight barrier between the cylinder walls and the surrounding components, ensuring that combustion gases remain contained within the combustion chamber. Similarly, in the Front Gear Cover, it prevents oil leakage, which is essential for maintaining proper lubrication and cooling of the engine’s moving parts.

Usage in Fuel and Water Pump Systems

The seal is also utilized in the Fuel Pump Coupling to ensure that fuel lines remain pressurized and free from leaks. In the Water Pump and Water Pump Kit, it aids in maintaining the integrity of the cooling system by preventing coolant leaks, which is crucial for thermal management within the engine.

Role in Overhaul and Rebuild Kits

In Overhaul Kits and Rebuild Kits, the 3906698 Rectangular Ring Seal is often included to replace worn-out seals during engine maintenance or rebuild processes. Its durability and reliability make it a preferred choice for ensuring that the engine operates efficiently post-overhaul.

Importance in Marine Spare Parts and Service Kits

For Marine Spare Parts Kits and Service Kits, this seal is indispensable. Marine environments present unique challenges, including exposure to water and corrosive elements, making robust sealing solutions essential. The 3906698 Rectangular Ring Seal provides the necessary protection against these elements, ensuring the engine’s reliability in harsh conditions.

Application in Lower and Upper Engine Gasket Sets

In both Lower Engine Gasket Sets and Upper Engine Gasket Kits, this seal is employed to ensure that the lower and upper sections of the engine remain sealed effectively. This is particularly important in preventing oil leaks from the sump and ensuring that the upper engine components, such as the valve cover, remain sealed against oil and gases.

Usage in Long Block and Long Block Kit

In the context of a Long Block or Long Block Kit, the 3906698 Rectangular Ring Seal is used to ensure that all critical sealing points are addressed. This is important for maintaining the engine’s performance and reliability, especially when the long block is being installed as a replacement or during a major engine rebuild.

Integration with Spares and Subset Kits

Finally, in Spares Kits and Subset Kits, this seal is often included as a standard component. Its versatility and reliability make it a go-to solution for addressing sealing issues in various engine subsystems, ensuring that mechanics and engineers have the right parts on hand for quick and effective repairs.

Conclusion

The 3906698 Rectangular Ring Seal is a critical component in the maintenance and operation of commercial truck engines. Its design, material properties, and compatibility with a wide range of Cummins engines make it an essential part for ensuring the reliability and efficiency of engine systems. Proper installation, maintenance, and troubleshooting are key to maximizing the performance and lifespan of this seal.