3093879
Plain Washer
Cummins®

The 3093879 Plain Washer is a component manufactured by Cummins, a well-established name in the automotive and heavy-duty truck industry. This washer serves a specific function within the mechanical systems of heavy-duty trucks, contributing to the overall efficiency and reliability of the vehicle. Cummins is recognized for producing high-quality parts that meet the demanding requirements of heavy-duty applications ¹.

Basic Concepts of Plain Washers

Plain washers are simple yet vital components in mechanical systems. They are typically flat, annular devices made from metal or other materials. Their primary function is to distribute the load of a threaded fastener, such as a bolt or screw, over a larger area. This helps prevent damage to the surfaces being joined and enhances the security of the fastening. In an assembly, plain washers can also provide a degree of cushioning and help maintain proper spacing between components ².

Purpose of the 3093879 Plain Washer

The 3093879 Plain Washer plays a role in various components of heavy-duty trucks. It is designed to ensure that the load from fastening elements is evenly distributed, which is particularly important in applications where vibrations and heavy loads are common. This washer can be found in engine components, transmission systems, and other critical areas where secure fastening is required. Its application helps in maintaining the integrity of the fastening system, thereby contributing to the overall performance and durability of the truck ³.

Key Features

The 3093879 Plain Washer is characterized by several key features that make it suitable for heavy-duty applications. It is typically made from a durable material that can withstand high stress and corrosion. The dimensions of the washer are precisely engineered to fit specific applications, ensuring optimal performance. Its design includes a smooth surface to facilitate easy installation and reduce the risk of galling or seizing during operation ⁴.

Benefits of Using Plain Washers

Plain washers offer several advantages in mechanical systems. They help in distributing the load from fastening elements, which can prevent damage to the surfaces being joined. This is particularly beneficial in heavy-duty applications where components are subjected to significant stress. Plain washers also enhance the security of fastening by providing a barrier between the fastener and the joined surfaces, reducing the risk of loosening due to vibration or movement ⁵.

Installation Guidelines

Proper installation of the 3093879 Plain Washer is important for ensuring its effectiveness. It should be placed under the head of a bolt or screw, or within a nut, depending on the specific application. Care should be taken to ensure that the washer is correctly aligned and not twisted, as this can lead to uneven load distribution and potential failure. It is also important to use the correct size and type of washer for the application to ensure optimal performance ⁶.

Troubleshooting Common Issues

Common issues with plain washers include wear and tear, which can lead to a loss of effectiveness, and improper fit, which can cause misalignment and uneven load distribution. Regular inspection of washers can help identify these issues early. If a washer shows signs of wear or damage, it should be replaced to maintain the integrity of the fastening system. Ensuring that the correct size and type of washer is used can help prevent issues related to improper fit ⁷.

Maintenance Tips

Regular maintenance of plain washers is important for ensuring their longevity and optimal performance. This includes routine inspection for signs of wear, corrosion, or damage. Washers should be cleaned and lubricated as necessary to prevent seizing and ensure smooth operation. In applications where washers are subjected to high stress or corrosive environments, more frequent inspection and replacement may be required ⁸.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for producing high-quality, reliable components for the automotive and heavy-duty truck industry. The company’s product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of various applications ⁹.

Cummins Engine Part 3093879: Plain Washer Application

The Cummins part number 3093879, a Plain Washer, is a crucial component used across several engine models. This washer is designed to provide a smooth and even distribution of pressure, ensuring proper sealing and alignment in various engine assemblies.

Application in Cummins Engines

6B5.9

In the 6B5.9 engine, the Plain Washer 3093879 is utilized in several critical areas where it ensures the integrity of the assembly by maintaining consistent pressure and alignment.

QSB4.5 CM850 (CM2850)

For the QSB4.5 CM850 (CM2850) engine, the Plain Washer 3093879 is integral to maintaining the alignment and pressure in the fuel injection system and other sensitive components.

QSK78 CM500

The QSK78 CM500 engine also benefits from the Plain Washer 3093879, particularly in the turbocharger system and other high-pressure areas, ensuring that parts remain securely fastened and properly aligned.

QST30 CM2350 T101 and QST30 CM552

Both the QST30 CM2350 T101 and QST30 CM552 engines use the Plain Washer 3093879 in similar applications. This washer is essential in maintaining the alignment and pressure in the engine’s lubrication system and other critical areas.

The Plain Washer 3093879 is a versatile and essential part, ensuring the longevity and efficiency of the engine by maintaining proper alignment and pressure in various assemblies.

Role of Part 3093879 Plain Washer in Engine Systems

The Part 3093879 Plain Washer is a fundamental component in various engine systems, ensuring the smooth operation and longevity of several key elements.

In the drive system, the Plain Washer is utilized to reduce friction between moving parts, thereby enhancing efficiency and minimizing wear. It is often placed between the drive shaft and the housing to maintain alignment and absorb vibrations.

Within the fuel pump assembly, the Plain Washer plays a role in securing components such as the pump housing and lever mechanisms. By providing a smooth surface, it ensures that the fuel pump operates without undue stress on the mechanical parts, contributing to consistent fuel delivery.

The gauge system, particularly those measuring oil levels, incorporates Plain Washers to ensure accurate readings. These washers help in maintaining the precise gap between the gauge components, which is essential for reliable performance.

In the oil level monitoring system, Plain Washers are used to secure sensors and housing units. They prevent direct metal-to-metal contact, which could lead to inaccurate readings or damage to the sensor.

The housing units of various engine components, such as the flywheel, often include Plain Washers to facilitate easy assembly and disassembly. They also help in distributing loads evenly, preventing undue stress on the housing material.

The flywheel system benefits from Plain Washers by ensuring that the connection between the flywheel and the drive components is secure yet flexible enough to accommodate minor misalignments without causing damage.

In the lever and rocker mechanisms, Plain Washers are essential for reducing friction and wear. They allow these components to move smoothly, which is vital for the precise operation of the engine’s valve train.

Overall, the Part 3093879 Plain Washer is a versatile component that enhances the functionality and durability of various engine systems.

Conclusion

The 3093879 Plain Washer is a critical component in the maintenance and operation of heavy-duty trucks and engines. Its role in distributing load, preventing damage, and ensuring secure fastening is essential for the longevity and efficiency of the vehicle. Proper installation, regular maintenance, and timely replacement of worn or damaged washers are key to maintaining the integrity of the fastening system and the overall performance of the truck.