3328740
Rectangular Ring Seal
Cummins®

The Cummins 3328740 Rectangular Ring Seal is a critical component for maintaining the integrity of seals within commercial truck systems. It ensures operational efficiency by preventing leaks and maintaining correct pressure conditions.

Basic Concepts of Rectangular Ring Seals

A Rectangular Ring Seal is a gasket used in mechanical systems to create a seal between parts. It functions by being compressed between mating surfaces, creating a barrier that prevents the escape of fluids or gases. These seals are essential in applications requiring reliable sealing under varying conditions of pressure, temperature, and exposure to different media ¹.

Purpose of the 3328740 Rectangular Ring Seal

This Cummins part provides a secure seal in the engine or transmission system, preventing fluid leakage. This is vital for maintaining system pressure and ensuring components receive necessary lubrication and cooling.

Key Features

The 3328740 Rectangular Ring Seal is characterized by its rectangular cross-section, allowing for a larger contact area compared to other seal types. It is typically made from materials that offer resistance to wear, corrosion, and a range of temperatures, contributing to its ability to maintain integrity over time and under various operating conditions ².

Benefits

The benefits of the 3328740 Rectangular Ring Seal include enhanced sealing efficiency, leading to better system performance and reduced maintenance costs. Its durability and resistance to wear and tear mean it can withstand the rigors of commercial truck operation, providing a long service life ³.

Installation Process

Installing the 3328740 Rectangular Ring Seal requires careful handling to avoid damage. The process involves cleaning the mating surfaces, positioning the seal correctly, and ensuring it is compressed to the proper dimensions without over-tightening. Tools such as seal installation tools may be used to facilitate a secure fit.

Troubleshooting Common Issues

Common issues with Rectangular Ring Seals include leaks and seal failure, often traced back to improper installation, damage during handling, or degradation over time. Troubleshooting steps may involve inspecting the seal for signs of wear, checking the mating surfaces for damage, and ensuring that the seal is correctly positioned and compressed.

Maintenance Tips

To maintain the 3328740 Rectangular Ring Seal, regular inspections should be conducted to check for signs of wear or damage. Cleaning the seal and its mating surfaces can help prevent contamination that could lead to failure. Replacement intervals should be observed to ensure that the seal does not reach a state where it can no longer perform its function effectively.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong reputation in the commercial truck industry, Cummins offers a range of products known for their reliability, performance, and innovation. The company’s commitment to quality and customer satisfaction has established it as a trusted name in the industry.

Rectangular Ring Seal (Part 3328740) Compatibility with Cummins Engines

The Rectangular Ring Seal, identified by part number 3328740, is a crucial component in ensuring the integrity and efficiency of various Cummins engines. This seal is designed to fit seamlessly within the engine architecture, providing a reliable barrier against leaks and maintaining optimal pressure levels.

ISM Series Engines

The Rectangular Ring Seal is compatible with several models within the ISM series:

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

These engines, known for their robust performance and reliability, benefit from the precision fit and durability of the 3328740 seal, ensuring smooth operation and longevity.

L10 Series Engines

The L10 series engines, which include:

• L10 CELECT
• L10 GAS
• L10 MECHANICAL

also utilize the 3328740 seal. This part is integral to maintaining the engine’s efficiency and preventing any potential leaks, which is crucial for the overall performance of these engines.

M11 Series Engines

The M11 series engines, which are known for their advanced technology and performance, include:

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

The Rectangular Ring Seal part number 3328740 is designed to fit these engines perfectly, ensuring that they operate at peak efficiency and reliability.

QSM11 Series Engines

The QSM11 series engines, which are part of Cummins’ lineup of high-performance engines, include:

• QSM11 CM570
• QSM11 CM876

These engines also require the 3328740 seal to maintain their operational integrity, providing a critical barrier against leaks and ensuring that the engine operates smoothly and efficiently.

Role of Part 3328740 Rectangular Ring Seal in Engine Systems

The 3328740 Rectangular Ring Seal is an essential component in maintaining the integrity and efficiency of various engine systems. It is specifically designed to create a reliable seal between moving and stationary parts, ensuring optimal performance and longevity of the engine.

Interaction with the Corrosion Resistor

In engines equipped with a corrosion resistor, the 3328740 Rectangular Ring Seal plays a significant role in preventing the ingress of contaminants and moisture. By providing a tight seal, it helps maintain the effectiveness of the corrosion resistor, thereby protecting critical engine components from degradation and ensuring consistent performance over time.

Integration with the Cylinder Block

When installed in the cylinder block, the 3328740 Rectangular Ring Seal ensures that combustion gases are contained within the cylinders. This containment is vital for maintaining compression levels and ensuring efficient fuel combustion. The seal also prevents oil from leaking into the combustion chamber, which could lead to contamination and reduced engine efficiency.

Function within the Lower Engine Gasket Set

As part of the lower engine gasket set, the 3328740 Rectangular Ring Seal contributes to the overall sealing strategy of the engine. It works in conjunction with other gaskets to create a comprehensive barrier against oil, coolant, and combustion gases. This integration is essential for maintaining the engine’s operational integrity and preventing leaks that could lead to performance issues or engine damage.

Role in the Overhaul Kit

In an overhaul kit, the 3328740 Rectangular Ring Seal is often included to replace worn or damaged seals during engine maintenance or rebuilds. Its inclusion ensures that the engine can be restored to its original sealing specifications, which is vital for achieving optimal performance post-overhaul. The seal’s durability and reliability make it a key component in ensuring the engine operates efficiently after significant maintenance work.

Conclusion

The 3328740 Rectangular Ring Seal is a vital component in the maintenance and efficiency of Cummins engines. Its role in preventing leaks, maintaining pressure, and ensuring the integrity of engine systems cannot be overstated. Proper installation, regular maintenance, and timely replacement are essential to maximize the benefits of this part.