4983908
Rectangular Ring Seal
Cummins®

Rectangular ring seals are vital components in the sealing systems of commercial trucks, ensuring the integrity of various components and systems. Among these, the 4983908 Rectangular Ring Seal by Cummins is a notable component, designed to meet the demanding requirements of heavy-duty applications ¹.

Basic Concepts of Rectangular Ring Seals

Rectangular ring seals are specialized sealing components used in various industrial and automotive applications. They function by creating a barrier that prevents the leakage of fluids or gases between mating surfaces. These seals are typically made from elastomeric materials, which provide the necessary flexibility and resilience to adapt to dynamic operating conditions. The manufacturing process involves precision molding to ensure the seals meet specific dimensional and performance criteria ².

Purpose of the 4983908 Rectangular Ring Seal

The 4983908 Rectangular Ring Seal by Cummins is designed to play a specific role in the operation of commercial trucks. It is utilized in various truck systems and components where reliable sealing is required to maintain performance and efficiency. This seal is often found in applications such as fuel systems, hydraulic systems, and engine components, where it helps to prevent leaks and ensure the proper functioning of these critical systems ³.

Key Features

The 4983908 Rectangular Ring Seal boasts several key features that enhance its performance and durability. Its design incorporates a rectangular cross-section, which allows for a larger contact area compared to traditional O-rings, resulting in improved sealing efficiency. The material properties of this seal are tailored to withstand high pressures and temperatures, making it suitable for heavy-duty applications. Additionally, the seal may feature unique characteristics such as resistance to abrasion and compatibility with a wide range of fluids, further enhancing its reliability in demanding environments ¹.

Benefits

The advantages provided by the 4983908 Rectangular Ring Seal include improved sealing efficiency, which helps to maintain system integrity and performance. Its longevity is enhanced by the robust material properties, ensuring that the seal remains effective over extended periods of use. Furthermore, the seal’s resistance to various operating conditions, including high temperatures and pressures, contributes to its reliability in commercial truck applications ².

Troubleshooting and Maintenance

Common issues associated with rectangular ring seals may include leaks, deformation, or failure due to wear and tear. Troubleshooting these problems involves inspecting the seal for signs of damage, ensuring proper installation, and verifying that the seal is compatible with the system’s operating conditions. Maintenance practices to ensure the longevity and effectiveness of the seal include regular inspection, replacement as needed, and adherence to manufacturer guidelines for installation and operation ³.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and aftermarket parts. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the commercial truck industry. The company’s commitment to excellence is reflected in its product range, which is designed to meet the rigorous demands of heavy-duty applications ¹.

Cummins Rectangular Ring Seal 4983908 Compatibility

The Cummins Rectangular Ring Seal part number 4983908 is designed to fit a variety of Cummins engines, ensuring a proper seal and preventing leaks in critical areas. Below is a detailed description of the engines with which this part is compatible:

ISB Series Engines

• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

The ISB series engines, known for their reliability and performance, utilize the Rectangular Ring Seal 4983908 to maintain optimal sealing in various applications.

ISBE Series Engines

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

The ISBE series engines, often used in heavy-duty applications, also benefit from the Rectangular Ring Seal 4983908, ensuring durability and efficiency.

ISC Series Engines

• ISC CM2150
• ISC CM554
• ISC CM850
• ISC8.3 CM2250

The ISC series engines, recognized for their robust design, incorporate the Rectangular Ring Seal 4983908 to maintain sealing integrity and operational efficiency.

ISL Series Engines

• ISL CM2150
• ISL CM554
• ISL9 CM2150 SN
• ISL9 CM2250

The ISL series engines, commonly used in on-highway and vocational applications, are compatible with the Rectangular Ring Seal 4983908, ensuring reliable sealing performance.

Other Cummins Engines

• 6B5.9
• 6C8.3
• B4.5 RGT
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• QSB4.5 CM2250 EC

Additionally, the Rectangular Ring Seal 4983908 fits various other Cummins engines, including the 6B5.9, 6C8.3, B4.5 RGT, B6.7 CM2350 B135B, B6.7 CM2670 B153B, B6.7 CM2670 B164C, and QSB4.5 CM2250 EC, ensuring a comprehensive seal across a wide range of engine models.

Role of Part 4983908 Rectangular Ring Seal in Engine Systems

The 4983908 Rectangular Ring Seal is integral to maintaining the integrity and efficiency of various engine systems. Its application is particularly noted in the following components:

Connection Points

In engine systems, the 4983908 Rectangular Ring Seal is often utilized at connection points where two or more components meet. These seals ensure that fluids and gases remain contained within the system, preventing leaks that could lead to performance issues or damage. The seal’s rectangular shape allows it to fit snugly into grooves and channels, providing a reliable barrier against external contaminants and internal pressures ¹.

Water Inlet

At the water inlet, the 4983908 Rectangular Ring Seal plays a significant role in regulating the flow of coolant into the engine. This seal helps maintain a consistent coolant level, which is essential for optimal engine temperature management. By ensuring a tight seal, it prevents coolant loss and maintains the efficiency of the cooling system, thereby protecting the engine from overheating ².

Lower Engine Gasket Kit

Incorporated within the lower engine gasket kit, the 4983908 Rectangular Ring Seal contributes to the overall sealing strategy of the engine. This kit often includes various gaskets and seals designed to prevent oil, coolant, and other fluids from leaking out of the lower portion of the engine. The rectangular ring seal, with its precise fit and durable material, enhances the gasket kit’s effectiveness, ensuring that the engine operates within specified parameters without fluid contamination or loss ³.

Conclusion

The 4983908 Rectangular Ring Seal by Cummins is a critical component in maintaining the integrity and efficiency of commercial truck engine systems. Its robust design, compatibility with a wide range of Cummins engines, and key features such as improved sealing efficiency and durability make it an essential part for heavy-duty applications. Regular maintenance and proper installation are crucial to ensure the longevity and effectiveness of this Cummins part, contributing to the overall performance and reliability of commercial trucks.