4964786
Plain Washer
Cummins®

Introduction

The Cummins 4964786 Plain Washer is a component designed for use in commercial truck maintenance. 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 significance is fundamental for maintaining the performance and longevity of commercial trucks.

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 general function is to distribute the load of a threaded fastener, such as a bolt or screw, over a larger area, thereby reducing the pressure on the surface and preventing damage. Additionally, plain washers can provide a degree of cushioning and help to prevent loosening of fasteners due to vibration ¹.

Purpose of the Cummins 4964786 Plain Washer

The Cummins 4964786 Plain Washer plays a role in the operation of a truck by ensuring the proper distribution of load from fasteners. It is applied in various truck components where secure fastening is required. This washer helps in maintaining the integrity of connections under the dynamic and often harsh conditions encountered in commercial truck operations.

Key Features

The Cummins 4964786 Plain Washer is characterized by several key features that make it suitable for heavy-duty applications. These include its material composition, which is typically designed to withstand significant stress and corrosion, its precise dimensions that ensure compatibility with specific fasteners, and its design, which may include features to enhance its performance under demanding conditions ².

Benefits

Using the Cummins 4964786 Plain Washer provides several benefits. It contributes to improved load distribution, which helps in reducing wear on fasteners and the surfaces they contact. This washer also enhances the durability of connections in harsh operating conditions, which is particularly important in the commercial trucking industry where equipment is subjected to significant stress and environmental factors.

Installation and Usage

Proper installation of the Cummins 4964786 Plain Washer is crucial for its effective function. It should be placed under the head of a bolt or screw, or within a nut, depending on the specific application. Best practices include ensuring the washer is correctly aligned and that it is not damaged during installation. Common applications within truck maintenance include use in engine components, chassis parts, and other areas where secure fastening is critical ³.

Troubleshooting and Maintenance

Regular inspection of the Cummins 4964786 Plain Washer is recommended to identify signs of wear or failure. Common issues may include deformation, corrosion, or cracking, which can compromise the washer’s function. Maintenance tips include keeping the washer and its surrounding components clean and free from debris, and replacing the washer if any signs of damage are detected.

Manufacturer Information - Cummins

Cummins Inc. is a well-established manufacturer in the automotive industry, known for its commitment to producing high-quality components. With a history of innovation and reliability, Cummins has built a reputation for excellence in the design and manufacture of automotive parts, including the Cummins 4964786 Plain Washer. Their products are engineered to meet the demanding requirements of commercial truck applications, ensuring durability and performance.

Cummins Engine Part 4964786: Plain Washer Application

The Cummins part 4964786, a Plain Washer, is a critical component in 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 various engine parts. Its application is vital for maintaining the integrity and efficiency of the engine systems.

Application in Cummins Engines

QSK60 G and QSK60G Engines

The Plain Washer 4964786 is integral to the QSK60 G and QSK60G engines. These engines are known for their robust performance and reliability in demanding applications. The washer is used in several critical areas, including:

• Cylinder Head Gaskets: Ensuring a tight seal between the cylinder head and engine block.
• Turbocharger Mounting: Providing a stable and secure connection between the turbocharger and engine components.
• Oil and Fuel System Connections: Ensuring leak-free connections in the oil and fuel systems.

CM2358 and K110 Engines

The Plain Washer 4964786 also finds application in the CM2358 and K110 engines. These engines are designed for versatility and efficiency in various industrial and power generation applications. The washer is used in similar critical areas as in the QSK60 G and QSK60G engines, including:

• Sealing Applications: Ensuring proper sealing in various engine components to prevent leaks.
• Mounting and Alignment: Providing a flat surface for mounting and aligning parts, ensuring operational efficiency and longevity.

The use of the Plain Washer 4964786 across these engine models underscores its importance in maintaining the performance and reliability of Cummins engines. Its consistent application in sealing, mounting, and alignment tasks highlights its versatility and critical role in engine assembly and operation.

Role of Part 4964786 Plain Washer in Engine Systems

The part 4964786 Plain Washer is an essential component in various engine systems, particularly within the turbocharger assembly. In turbochargers, this washer is utilized to ensure proper spacing and alignment between the turbine and compressor wheels. It helps maintain the necessary clearance, which is vital for the efficient operation of the turbocharger.

Within the turbocharger, the Plain Washer is often positioned between the bearing housing and the compressor cover. This placement allows for the reduction of friction and wear between these components, contributing to the overall durability and performance of the turbocharger. Additionally, the washer aids in distributing the load evenly, which is important for the longevity of the turbocharger bearings.

Furthermore, the Plain Washer plays a role in the sealing mechanism of the turbocharger. By providing a consistent and uniform gap, it assists in preventing oil leaks that could otherwise occur due to improper spacing. This is particularly important in high-performance engines where turbochargers operate under extreme conditions.

Conclusion

In summary, the Cummins 4964786 Plain Washer is integral to the turbocharger’s functionality, ensuring optimal performance, durability, and reliability in engine systems. Its role in load distribution, sealing, and alignment is critical for the efficient operation of commercial trucks and Cummins engines.