3902466
Rectangular Ring Seal
Cummins®

The Cummins 3902466 Rectangular Ring Seal is a component designed to ensure the integrity of seals within commercial truck engines and transmissions. Its role is significant in maintaining the efficiency and reliability of these systems by preventing leaks and ensuring proper fluid containment ¹.

Basic Concepts of Rectangular Ring Seals

A Rectangular Ring Seal is a type of gasket that provides a sealing solution between two or more mating surfaces. It functions by creating a barrier that prevents the escape of fluids or gases, thus maintaining system pressure and efficiency. These seals are commonly used in various mechanical systems where fluid dynamics and pressure containment are essential ².

Purpose of the 3902466 Rectangular Ring Seal

The 3902466 Rectangular Ring Seal plays a role in the operation of a truck by ensuring a tight seal in the engine or transmission system. This seal helps in maintaining the integrity of fluid pathways, preventing leaks that could lead to system failure or reduced performance. Its function is vital in ensuring that the engine or transmission operates within specified parameters.

Key Features

The Cummins 3902466 Rectangular Ring Seal is characterized by its specific design and material properties. It is typically made from materials that offer high resistance to wear, chemical degradation, and temperature variations. These characteristics contribute to the seal’s effectiveness and durability, making it suitable for the demanding conditions found in commercial truck engines and transmissions.

Benefits

Using the 3902466 Rectangular Ring Seal provides several advantages. These include improved sealing performance, which helps in maintaining system efficiency. The seal’s durability ensures longevity, reducing the frequency of replacements. Additionally, its resistance to various operating conditions enhances the overall reliability of the truck’s engine or transmission system.

Installation Process

Proper installation of the 3902466 Rectangular Ring Seal is crucial for ensuring optimal performance and longevity. The installation process involves cleaning the mating surfaces, positioning the seal correctly, and ensuring it is not damaged during installation. Following manufacturer guidelines for torque specifications and alignment is also important to achieve a proper seal.

Common Issues and Troubleshooting

Typical problems associated with Rectangular Ring Seals include leaks, which may be caused by improper installation, wear, or damage to the seal. Symptoms of these issues can include fluid leaks, reduced system performance, or unusual noises. Troubleshooting steps may involve inspecting the seal for damage, ensuring proper installation, and replacing the seal if necessary.

Maintenance Tips

To prolong the service life of the 3902466 Rectangular Ring Seal and ensure consistent performance, regular maintenance is recommended. This includes inspecting the seal during routine maintenance checks, cleaning the mating surfaces to prevent contamination, and replacing the seal according to manufacturer recommendations or when signs of wear are observed.

Replacement Guidelines

Determining when to replace the 3902466 Rectangular Ring Seal involves assessing signs of wear, such as cracks, deformation, or leaks. It is also recommended to replace the seal during major service intervals or when performing repairs on the engine or transmission system. Following manufacturer guidelines for replacement ensures the continued reliability and 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 of innovation and quality, Cummins serves commercial, industrial, and automotive markets. The company is renowned for its commitment to reliability, efficiency, and sustainability in the commercial truck industry.

Cummins Rectangular Ring Seal (Part 3902466) Compatibility

The Cummins Rectangular Ring Seal, part number 3902466, is a critical component designed to ensure proper sealing in various engine applications. This seal is engineered to fit seamlessly with a range of Cummins engines, providing essential sealing functionality to maintain engine efficiency and performance.

Compatible Engines

• 6C8.3
• C GAS PLUS CM556
• C8.3 G
• G8.3
• G8.3 CM558
• GTA8.3 CM558
• ISL G CM2180
• L GAS PLUS CM556
• L8.9G CMOH2.0 L125B
• L9.3 L105
• QSL9 G CM558

Grouping of Compatible Engines

The engines listed above can be grouped based on their sealing requirements and design compatibility with the Rectangular Ring Seal:

1. 6C8.3, C8.3 G, G8.3, G8.3 CM558, GTA8.3 CM558, L8.9G CMOH2.0 L125B, L9.3 L105, QSL9 G CM558

   • These engines share similar sealing needs and configurations, making the Rectangular Ring Seal a versatile fit across this group.

2. C GAS PLUS CM556, L GAS PLUS CM556

   • These engines, while distinct in their specific applications, also benefit from the precise sealing properties of the Rectangular Ring Seal.

3. ISL G CM2180

   • This engine, with its unique design, is also compatible with the Rectangular Ring Seal, ensuring optimal sealing performance.

Each of these engines relies on the Rectangular Ring Seal to maintain critical seals, preventing leaks and ensuring the engine operates at peak efficiency. The compatibility of part 3902466 across these engines underscores its importance in maintaining engine integrity and performance.

Role of Part 3902466 Rectangular Ring Seal in Engine Systems

The Part 3902466 Rectangular Ring Seal is integral to maintaining the integrity and efficiency of various engine systems. Its application spans across multiple components, ensuring optimal performance and longevity.

Valve Cover and Cylinder Head Gasket Sets

In the valve cover arrangement, the Rectangular Ring Seal plays a significant role in preventing oil leaks. It ensures that the valve cover remains securely sealed, protecting the internal components from contamination and maintaining proper lubrication. Similarly, in the set gasket cylinder head and set upper engine gasket, the seal is essential for maintaining compression and preventing coolant or oil from entering the combustion chamber.

Engine Piston and Overhaul Kits

When incorporated into an engine piston kit or an overhaul kit, the Rectangular Ring Seal contributes to the overall sealing efficiency of the piston assembly. It helps in maintaining the correct pressure within the cylinder, ensuring smooth operation and reducing the risk of blow-by. This is particularly important in kits like the PMM Piston Upgrade Kit, where precision and reliability are paramount.

Upper Engine Gasket Sets

In upper engine gasket sets, such as the Upper Engine Gasket Kit and Upper Engine Gasket Set, the seal is used to ensure that the upper components of the engine, including the intake manifold and exhaust manifold, are properly sealed. This prevents any loss of vacuum or pressure, which could lead to decreased engine performance.

Rebuild and Short Engine Kits

For comprehensive engine rebuilds, the Rectangular Ring Seal is a vital component in rebuild kits and short engine kits. It ensures that all newly installed parts, from the Set Engine Gasket to the Upper Eng Gskt (.15mm and .50mm), function as intended without any leaks or failures. This is especially important in ensuring that the engine can withstand the stresses of operation after a rebuild.

Ford Dealer and Parts Distribution Center Kits

In kits provided by Ford Dealer and Parts Distribution Center, the Rectangular Ring Seal is often included to guarantee that all replacement parts work seamlessly together. This is crucial for maintaining the warranty and ensuring that the engine operates at peak efficiency.

Onboard Spares and Upper Gasket Sets

Finally, in onboard spares and upper gasket sets, the Rectangular Ring Seal serves as a reliable component that can be quickly installed in case of a failure, minimizing downtime and ensuring that the engine can be returned to service with minimal interruption.

Conclusion

Overall, the Part 3902466 Rectangular Ring Seal is a fundamental component in various engine systems, contributing to the seal integrity, performance, and longevity of the engine. Its proper installation, maintenance, and timely replacement are crucial for ensuring the continued reliability and efficiency of commercial truck engines and transmissions.