4353902
O Ring Seal
Cummins®

The 4353902 O-Ring Seal, manufactured by Cummins, is a component designed for use in commercial trucks. Cummins, a well-established name in the automotive industry, produces this seal to meet the demanding requirements of heavy-duty truck applications. This part is integral to maintaining the integrity of various systems within commercial trucks, ensuring they operate efficiently and reliably.

Basic Concepts of O-Ring Seals

An O-Ring Seal is a type of gasket with a circular cross-section, designed to create a seal between two or more parts. In mechanical systems, O-Ring Seals play a role by preventing the leakage of fluids and gases, thereby maintaining system pressure and preventing contamination. They operate by being compressed between flanges or within a groove, creating a barrier that resists the passage of substances ¹.

Purpose of the 4353902 O-Ring Seal in Truck Operations

This Cummins part serves a specific function in the operation of commercial trucks. It is applied in areas where fluid or gas sealing is required, such as in engine components, transmission systems, and hydraulic systems. By providing a reliable seal, it supports the efficient operation of these systems, contributing to the overall performance and durability of the truck ².

Key Features of the 4353902 O-Ring Seal

The design and material characteristics of the 4353902 O-Ring Seal are tailored to meet the challenges of heavy-duty truck environments. Made from durable materials, it is resistant to a wide range of temperatures and chemical exposures. Its design ensures a tight seal under pressure, which is crucial for the demanding conditions encountered in commercial truck operations.

Benefits of Using the 4353902 O-Ring Seal

This part offers several advantages. Its design contributes to improved sealing performance, reducing the risk of leaks and system failures. The material used in its construction provides longevity, even under harsh operating conditions. Additionally, its resistance to various environmental factors ensures reliable performance over time.

Installation Considerations

Proper installation of the 4353902 O-Ring Seal is key to ensuring its optimal performance and longevity. Guidelines recommend careful handling to avoid damage to the seal. It should be installed in a clean groove free from debris, and care should be taken to ensure it is not over-compressed, which could lead to premature failure.

Troubleshooting Common Issues

Typical problems associated with O-Ring Seals include leaks and seal failure. These issues can often be traced back to improper installation, environmental factors, or wear and tear. Addressing these problems may involve re-installing the seal correctly, replacing it if damaged, or implementing maintenance practices to mitigate environmental impacts.

Maintenance Tips

Regular maintenance practices can prolong the life of the 4353902 O-Ring Seal and ensure continued reliable performance. This includes periodic inspections for signs of wear or damage, cleaning the seal and its groove to remove contaminants, and replacing the seal according to the manufacturer’s recommendations or when signs of degradation are observed.

Cummins: Manufacturer Overview

Cummins has a long-standing reputation in the industry for quality and innovation in manufacturing automotive components. Founded with a commitment to excellence, Cummins continues to lead in the development of reliable and efficient parts for commercial vehicles. Their dedication to quality is evident in the design and performance of components like the 4353902 O-Ring Seal.

O-Ring Seal 4353902 Compatibility with Cummins Engines

The O-Ring Seal part number 4353902, manufactured by Cummins, is a critical component designed to ensure a secure and leak-proof seal in various engine applications. This seal is compatible with several Cummins engine models, providing a reliable solution for maintaining engine integrity and performance.

F3.8 CM2350 Series

The O-Ring Seal 4353902 is specifically engineered to fit within the F3.8 CM2350 engine series. This seal plays a vital role in preventing fluid leaks and maintaining the necessary pressure within the engine’s critical areas.

QSB6.7 CM2350 and QSF3.8 CM2350

In the QSB6.7 CM2350 and QSF3.8 CM2350 engines, the O-Ring Seal 4353902 is used to ensure a tight seal in various applications. Its design allows it to withstand the high pressures and temperatures typical of these engines, ensuring longevity and reliability.

QSG12/X12 CM2350 and QSL9 CM2350

For the larger QSG12/X12 CM2350 and QSL9 CM2350 engines, the O-Ring Seal 4353902 is equally important. This seal is designed to fit precisely in these engines, providing a robust barrier against leaks and maintaining the engine’s operational efficiency.

QSX15 CM2350

The QSX15 CM2350 engine also benefits from the O-Ring Seal 4353902. This seal is crucial in maintaining the engine’s performance by preventing any fluid from escaping, which could lead to decreased efficiency or engine damage.

By using the O-Ring Seal 4353902 across these various engine models, Cummins ensures that the seal meets the stringent requirements of each engine type, providing a reliable and durable solution for maintaining engine integrity.

Role of Part 4353902 O-Ring Seal in Diesel Exhaust Fluid Systems

In diesel exhaust fluid (DEF) systems, the O-Ring Seal (part 4353902) is integral to maintaining the integrity and efficiency of various components.

Diesel Exhaust Fluid Filter

The O-Ring Seal ensures a tight connection between the DEF filter and its housing. This seal prevents DEF leakage, which is essential for maintaining the correct fluid levels and ensuring the filter operates effectively in reducing emissions.

Diesel Exhaust Fluid Header

In the DEF header, the O-Ring Seal plays a key role in securing connections between different sections of the header. This seal helps maintain consistent fluid flow and pressure, which is vital for the proper functioning of the selective catalytic reduction (SCR) system.

Diesel Exhaust Fluid Tank

When installed in the DEF tank, the O-Ring Seal provides a secure fit for various fittings and connections. This ensures that the tank remains leak-free, preserving the quality and quantity of DEF stored within.

General DEF System

Across the DEF system, the O-Ring Seal is used in multiple connections, including those between the tank, filter, and header. Its role in creating a reliable seal is fundamental to the overall performance and durability of the DEF system, ensuring that emissions are effectively managed and engine efficiency is maintained.

Conclusion

The 4353902 O-Ring Seal by Cummins is a vital component in the maintenance and operation of commercial trucks and diesel exhaust fluid systems. Its design and material characteristics are tailored to withstand the demanding conditions of heavy-duty truck environments, ensuring reliable performance and longevity. Proper installation, regular maintenance, and understanding its role in various systems are key to maximizing the benefits of this Cummins part.