3974664
Plain Washer
Cummins®

The Cummins 3974664 Plain Washer is a component designed for use in commercial truck operations. It serves a specific function within the mechanical systems of trucks, contributing to the overall efficiency and reliability of the vehicle. Understanding its purpose and role is fundamental for maintaining and repairing commercial trucks effectively.

Basic Concepts of Plain Washers

Plain washers are simple yet vital components in mechanical systems. They are flat, annular metal rings that distribute load, prevent damage to surfaces, and maintain the integrity of fasteners. In operation, plain washers help to evenly distribute the force applied by a bolt or nut, reducing the risk of damage to the materials being joined and enhancing the stability of the connection ¹.

Purpose of the Cummins 3974664 Plain Washer

The Cummins 3974664 Plain Washer plays a role in the operation of a truck by providing a stable and even distribution of load across the surfaces it connects. Within the assembly it is part of, this washer helps to ensure that fasteners do not cause undue stress or damage, thereby contributing to the longevity and reliability of the truck’s components.

Key Features

The Cummins 3974664 Plain Washer is characterized by its material composition, typically made from high-quality steel to ensure durability and resistance to wear. Its dimensions are precisely engineered to fit specific applications within truck assemblies. Unique characteristics may include a specific thickness or outer diameter that distinguishes it from other washers, ensuring it meets the exact requirements of its intended use ².

Benefits

Using the Cummins 3974664 Plain Washer offers several advantages. Its durable material composition ensures it can withstand the rigors of commercial truck operations, providing resistance to wear and contributing to the overall efficiency of the truck’s components. The washer’s design helps to distribute load evenly, reducing the risk of damage to connected surfaces and enhancing the stability of fastenings.

Installation and Usage

Proper installation of the Cummins 3974664 Plain Washer is crucial for its effective function. It should be placed between the fastener and the surface it is securing to ensure even load distribution. Specific considerations for its use in truck maintenance and repair include ensuring it is the correct size for the application and that it is made from a material suitable for the environmental conditions it will encounter.

Troubleshooting and Maintenance

Common issues with plain washers can include wear, deformation, or failure due to improper installation. Regular inspection during maintenance can help identify these issues early. Maintenance tips to ensure longevity and proper function include checking for signs of wear or damage and replacing the washer if it shows any signs of failure. This proactive approach helps maintain the integrity of the truck’s components ³.

Compatibility and Application

The Cummins 3974664 Plain Washer is designed for specific applications within truck assemblies. Compatibility with other components is ensured through precise engineering and material selection. Understanding its typical applications and any compatibility considerations is important for effective use in truck maintenance and repair.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. Its product range includes a variety of components designed to enhance the performance, reliability, and efficiency of commercial vehicles.

Cummins Engine Part 3974664: Plain Washer Application

The Cummins part number 3974664, a Plain Washer, is integral to the assembly and operation of several Cummins engine models. This part is designed to provide a smooth, flat surface that ensures proper sealing and alignment between components, contributing to the engine’s overall efficiency and longevity.

Application in Cummins Engines

• 6B5.9 and 6C8.3 Engines

  The Plain Washer 3974664 is utilized in both the 6B5.9 and 6C8.3 engines, where it plays a crucial role in maintaining the integrity of the engine’s sealing systems. Its placement is critical in areas where precise alignment and sealing are necessary to prevent leaks and ensure optimal performance.

• K19 and K38 Engines

  In the K19 and K38 engines, the Plain Washer 3974664 is employed in various configurations to support the engine’s structural integrity. This includes applications in the fuel injection system, where it helps maintain the alignment of injectors and related components, ensuring consistent fuel delivery and combustion efficiency.

• K50 Engine

  The K50 engine also benefits from the Plain Washer 3974664, particularly in areas requiring precise mechanical tolerances. This washer is used in conjunction with bolts and nuts to secure various engine parts, ensuring that they remain in the correct position under operational stresses.

Each of these engines relies on the Plain Washer 3974664 to provide a reliable and consistent interface between components, contributing to the overall durability and performance of the engine.

Role of Part 3974664 Plain Washer in Various Engine Systems

In the intricate world of engine systems, the part 3974664 Plain Washer serves as a fundamental component, ensuring the seamless operation of various assemblies. Its application spans across multiple components, each playing a distinct role in the overall functionality of the engine.

Panel Assembly

Within the panel assembly, the Plain Washer is utilized to maintain proper spacing and alignment between components. This ensures that the panel remains securely attached to the engine structure, contributing to the overall stability and integrity of the assembly.

Engine Instrument Systems

In engine instrument systems, the Plain Washer is employed to facilitate the mounting of gauges and sensors. By providing a consistent surface for these instruments, it ensures accurate readings and reliable performance, which are essential for monitoring engine health and performance.

Radiator and Radiator Mounting

The Plain Washer is integral to the radiator and its mounting system. It helps in evenly distributing the load across the mounting points, preventing undue stress on the radiator and ensuring efficient heat dissipation. This is vital for maintaining optimal engine temperature and preventing overheating.

Rail and Base Structures

In rail and base structures, the Plain Washer acts as a spacer, ensuring that components are properly aligned and spaced. This is particularly important in maintaining the structural integrity of the engine, as well as in facilitating the smooth operation of moving parts.

Wiring Assembly Harness

Within the wiring assembly harness, the Plain Washer is used to secure wires and connectors in place. This not only ensures the electrical integrity of the system but also protects wires from abrasion and damage, contributing to the reliable operation of the engine’s electrical systems.

Wiring Top Level Assembly Harness

Similarly, in the wiring top level assembly harness, the Plain Washer plays a role in maintaining the organization and security of wiring. This is essential for preventing short circuits and ensuring that the electrical systems within the engine operate efficiently and reliably.

Overall, the part 3974664 Plain Washer, though small in size, plays a significant role in the operation and maintenance of various engine systems. Its application across different components underscores its importance in ensuring the smooth and efficient functioning of the engine.

Conclusion

The Cummins 3974664 Plain Washer is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its role in distributing load, preventing damage, and ensuring the integrity of fasteners cannot be overstated. Proper understanding, installation, and maintenance of this part are essential for the longevity and reliability of truck and engine components.