3687210
Rectangular Ring Seal
Cummins®

The 3687210 Rectangular Ring Seal is a component manufactured by Cummins, a well-established name in the commercial truck industry. This seal is utilized in various applications within commercial trucks, playing a significant role in maintaining the integrity of the engine and other mechanical systems. Sealing components are vital in heavy-duty truck operations, ensuring that fluids and gases remain contained within their designated pathways, thereby contributing to the overall efficiency and reliability of the vehicle ¹.

Basic Concepts of Rectangular Ring Seals

A Rectangular Ring Seal is a type of gasket designed to provide a seal between two or more mating surfaces. It functions by being compressed between these surfaces, creating a barrier that prevents leakage of fluids or gases. These seals are commonly used in mechanical systems where a reliable seal is required under varying conditions of pressure and temperature. Materials used in the construction of Rectangular Ring Seals typically include rubber, silicone, and various types of synthetic materials, chosen for their durability, flexibility, and resistance to environmental factors ².

Purpose of the 3687210 Rectangular Ring Seal in Truck Operations

The 3687210 Rectangular Ring Seal plays a role in the operation of commercial trucks by ensuring the integrity of seals in various systems. It is typically associated with engine components, where it helps maintain the containment of fluids and gases, contributing to the efficient operation of the engine. By preventing leaks, this seal aids in preserving the performance and longevity of the truck’s mechanical systems ³.

Key Features of the 3687210 Rectangular Ring Seal

The 3687210 Rectangular Ring Seal is characterized by its design and material properties. It is crafted to fit precisely within the designated sealing area, ensuring a tight seal under operational conditions. The material used in its construction offers resistance to wear, degradation, and environmental factors, enhancing its performance and durability. Unique attributes of this seal may include specific dimensions tailored to its application and enhanced material formulations for improved performance.

Benefits of Using the 3687210 Rectangular Ring Seal

Incorporating the 3687210 Rectangular Ring Seal into truck maintenance and repair offers several advantages. Its design and material properties contribute to increased durability, ensuring a longer service life compared to standard seals. The seal’s ability to maintain a reliable barrier under varying conditions enhances the efficiency and reliability of the truck’s mechanical systems, reducing the likelihood of leaks and associated operational issues.

Installation and Maintenance Guidelines

Proper installation of the 3687210 Rectangular Ring Seal involves ensuring the mating surfaces are clean and free of debris, followed by carefully positioning the seal within the designated area. It is important to avoid over-tightening during installation to prevent damage to the seal. Maintenance tips for ensuring the longevity and optimal performance of the seal include regular inspection for signs of wear or damage, and replacement as necessary to maintain the integrity of the seal.

Troubleshooting Common Issues

Common problems associated with Rectangular Ring Seals may include leaks due to wear, damage, or improper installation. Troubleshooting steps involve inspecting the seal and mating surfaces for damage, ensuring proper installation, and replacing the seal if necessary. Guidance on when to replace or repair the seal includes monitoring for signs of leakage or reduced performance, and addressing issues promptly to prevent further damage.

Cummins: A Brief Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of products and commitment to quality and innovation. The company’s history is marked by a dedication to producing reliable and efficient engine components, including seals, gaskets, and other critical parts. Cummins’ reputation in the industry is built on its focus on quality manufacturing processes and continuous innovation in engine component technology.

Cummins Rectangular Ring Seal (Part 3687210) Compatibility

The Cummins Rectangular Ring Seal, identified by part number 3687210, is a critical component designed to ensure the integrity of various engine systems. This seal is engineered to fit seamlessly within a range of Cummins engines, providing a reliable barrier against leaks and maintaining system pressures. Below is a detailed description of its compatibility across several engine models.

ISX Series Engines

• ISX CM570
• ISX CM870
• ISX CM871

The Rectangular Ring Seal is compatible with the ISX series engines, including the ISX CM570, ISX CM870, and ISX CM871. These engines are known for their robust performance and are often used in heavy-duty applications. The seal ensures that the engine’s internal components remain protected from contaminants and wear.

ISX15 Series Engines

• ISX15 CM2250
• ISX15 CM2250 SN
• ISX15 CM2350 X101

For the ISX15 series, the Rectangular Ring Seal fits the ISX15 CM2250, ISX15 CM2250 SN, and ISX15 CM2350 X101 engines. These engines are designed for high-performance applications and benefit from the seal’s ability to maintain system integrity under demanding conditions.

QSX15 Series Engines

• QSX15 CM2250
• QSX15 CM2250 ECF
• QSX15 CM2350 X105

The QSX15 series engines, including the QSX15 CM2250, QSX15 CM2250 ECF, and QSX15 CM2350 X105, are also compatible with the Rectangular Ring Seal. These engines are engineered for superior fuel efficiency and power output, and the seal plays a crucial role in maintaining the engine’s operational efficiency.

X15 Series Engines

• X15 CM2350 X116B
• X15 CM2350 X123B
• X15 CM2450 X134B

Lastly, the X15 series engines, such as the X15 CM2350 X116B, X15 CM2350 X123B, and X15 CM2450 X134B, are designed for advanced performance and reliability. The Rectangular Ring Seal ensures that these engines operate at peak efficiency by preventing leaks and maintaining system pressures.

Role of Part 3687210 Rectangular Ring Seal in Engine Systems

The Rectangular Ring Seal, identified by part number 3687210, is an essential component in ensuring the efficient operation of various engine systems. Its primary function is to provide a reliable seal between moving and stationary parts, preventing leaks and maintaining system integrity.

Sealing the Connecting Rod and Piston

In the context of the connecting rod and piston assembly, the Rectangular Ring Seal is used to ensure a tight seal where the connecting rod meets the piston. This seal is vital for maintaining the pressure within the combustion chamber, which is necessary for efficient fuel combustion and power delivery.

Integration with the Cylinder Head

When installed in conjunction with the cylinder head, the Rectangular Ring Seal helps to prevent coolant or oil leaks. This is particularly important in engines where the cylinder head is subjected to high temperatures and pressures. The seal ensures that the cooling system remains intact, preventing overheating and potential engine damage.

Use in Cylinder Head Rebuild Kits

In cylinder head rebuild kits, the Rectangular Ring Seal is often included to replace worn or damaged seals. This ensures that the rebuilt cylinder head will perform as efficiently as a new one, maintaining the engine’s overall performance and reliability.

Engine Piston Applications

For engine pistons, the Rectangular Ring Seal is used to ensure that the piston rings seat properly within the cylinder bore. This seal helps to maintain compression, which is essential for the engine’s power output and fuel efficiency.

Head and Cylinder Sealing

In the head and cylinder assembly, the Rectangular Ring Seal plays a role in maintaining the seal between these two critical components. This is important for preventing coolant or oil from entering the combustion chamber, which could lead to contamination and reduced engine performance.

Injector and Injector Sleeve Sealing

When used with injectors and injector sleeves, the Rectangular Ring Seal ensures that fuel is delivered accurately and without leaks. This is important for maintaining the engine’s fuel efficiency and emissions performance.

Overhaul Kit Component

In an overhaul kit, the Rectangular Ring Seal is a standard component used to replace old or worn seals. This ensures that the engine, once overhauled, will operate as efficiently as when it was new, providing reliable performance and longevity.

Performance Parts

For performance parts, the Rectangular Ring Seal is often upgraded to handle the increased pressures and temperatures associated with high-performance engines. This ensures that the engine can operate at peak performance without the risk of seal failure.

Conclusion

The 3687210 Rectangular Ring Seal is a versatile and essential component in various engine systems, providing the necessary seals to ensure efficient and reliable engine operation. Its role in maintaining system integrity, preventing leaks, and enhancing engine performance underscores its importance in the maintenance and repair of commercial trucks.