3958964
Sealing Washer
Cummins®

Introduction

The 3958964 Sealing Washer is a component manufactured by Cummins, a well-established name in the commercial truck industry. This sealing washer is integral to the efficient operation of commercial trucks, ensuring the integrity of various fluid and gas systems within these vehicles ¹.

Basic Concepts of Sealing Washers

Sealing washers are mechanical components designed to create a seal between two surfaces, preventing the leakage of fluids or gases. They are commonly used in various mechanical systems to maintain the pressure and purity of the contained substances. In the context of trucks, sealing washers play a vital role in ensuring that systems such as fuel lines, hydraulic systems, and engine cooling systems operate without leaks, thereby maintaining system efficiency and safety ².

Purpose of the 3958964 Sealing Washer

The 3958964 Sealing Washer is specifically designed to serve in multiple truck systems where fluid or gas integrity is paramount. It is applied in systems where precise sealing is required to prevent leaks, maintain pressure, and ensure the purity of the substances being transported. Its role is to provide a reliable seal in environments that may be subject to high pressure, temperature fluctuations, and exposure to various chemicals ³.

Key Features

The 3958964 Sealing Washer is characterized by several key features that enhance its performance. It is made from high-quality materials that offer durability and resistance to wear and corrosion. The design specifications of this washer ensure a snug fit in its intended applications, providing a secure seal. Additionally, any unique attributes, such as special coatings or treatments, further contribute to its effectiveness in demanding environments.

Benefits

Utilizing the 3958964 Sealing Washer in truck operations offers several benefits. It contributes to improved system efficiency by ensuring that fluids and gases are contained within their designated pathways. This containment helps in maintaining the intended pressure and purity of the substances, leading to more reliable and efficient truck operations. Furthermore, the durability and reliability of this sealing washer contribute to the longevity of the systems in which it is installed.

Installation Process

Proper installation of the 3958964 Sealing Washer is crucial for its effective performance. The process involves selecting the correct size and type of washer for the application, ensuring the mating surfaces are clean and free of debris, and applying the washer without damaging it. Best practices include using the appropriate tools for installation and avoiding over-tightening, which can compromise the seal. Common pitfalls to avoid include using washers that are not designed for the specific application and neglecting to inspect the washer for damage before installation.

Troubleshooting Common Issues

Common problems associated with sealing washers include leaks, which can arise from improper installation, wear and tear, or exposure to incompatible substances. Addressing these issues involves identifying the source of the leak, inspecting the washer for damage, and replacing it if necessary. Regular inspections can help in early detection of potential issues, allowing for timely replacements and maintenance.

Maintenance Tips

Regular maintenance of the 3958964 Sealing Washer is key to ensuring its optimal performance and longevity. This includes routine inspections for signs of wear, damage, or deformation. Replacement schedules should be established based on the operational conditions and the manufacturer’s recommendations. Additionally, ensuring that the washers are stored in a clean, dry environment when not in use can prevent premature degradation.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. The company’s commitment to quality is evident in its wide range of products, including the 3958964 Sealing Washer, which is designed to meet the demanding requirements of commercial truck operations.

Cummins Engine Part 3958964: Sealing Washer Compatibility

The Cummins part 3958964, a Sealing Washer, is a critical component designed to ensure proper sealing and prevent leaks in various engine systems. This part is compatible with a range of Cummins engines, each serving different applications and performance requirements. Below is a detailed description of the engines with which this sealing washer is compatible.

B6.7 Series Engines

• B6.7 CM2350 B153B
• B6.7 CM2670 B153B
• B6.7 G CMOH6.0 B125

These engines are part of the B6.7 series, known for their robust performance and reliability in heavy-duty applications. The sealing washer ensures that the engine’s internal components are properly sealed, maintaining optimal performance and longevity.

F3.8 Series Engines

• F3.8 CM2620 F137B

The F3.8 series engines are designed for medium-duty applications, providing a balance of power and efficiency. The sealing washer is essential in these engines to maintain the integrity of the sealing systems, ensuring smooth operation and preventing leaks.

ISB/ISD Series Engines

• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISD4.5 CM2220 D108
• ISF3.8 CM2220 AN

The ISB/ISD series engines are versatile and widely used in various applications, from construction to transportation. The sealing washer is crucial in these engines to maintain the sealing integrity of critical components, ensuring reliable performance and reducing maintenance needs.

ISBE Series Engines

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

These engines are designed for on-highway applications, providing high performance and efficiency. The sealing washer ensures that the engine’s sealing systems are intact, contributing to the overall reliability and performance of the engine.

QSB Series Engines

• QSB4.5 CM850(CM2850)
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850(CM2850)
• QSB7 CM2880 B117
• QSC8.3 CM850(CM2850)

The QSB series engines are known for their durability and performance in off-highway applications. The sealing washer is essential in these engines to maintain the sealing integrity, ensuring that the engine operates efficiently and reliably in demanding conditions.

The Cummins part 3958964, a Sealing Washer, is a vital component that ensures the proper sealing of various engine systems across different series and models. Its compatibility with a wide range of Cummins engines underscores its importance in maintaining engine performance and reliability.

Role of Part 3958964 Sealing Washer in Engine Systems

The part 3958964 Sealing Washer is instrumental in maintaining the integrity and efficiency of various engine systems. Within the compressor coolant system, it ensures a tight seal between the compressor and the coolant passages, preventing leaks that could lead to system inefficiencies or failures.

In the compressor water inlet tube, the sealing washer plays a key role in maintaining pressure and preventing water ingress, which is vital for the compressor’s operation and longevity.

For the plumbing associated with the cabin heater, the sealing washer helps in sustaining the required pressure and temperature levels, ensuring consistent and reliable heating performance for occupant comfort.

In the marine gear oil cooler system, the sealing washer is essential for maintaining the seal between the cooler and the plumbing, which is necessary for efficient heat exchange and prolonging the life of the gear oil.

Lastly, within the seal kit components, the sealing washer complements other seals to provide a comprehensive barrier against leaks, contributing to the overall reliability and performance of the engine systems.

Conclusion

The 3958964 Sealing Washer by Cummins is a critical component in the maintenance and operation of commercial truck engines. Its role in preventing leaks, maintaining pressure, and ensuring the purity of fluids and gases within various engine systems is paramount. Proper installation, regular maintenance, and understanding its compatibility with different Cummins engine models are essential for maximizing the performance and longevity of these systems.