3278499
Plain Washer
Cummins®

Introduction

The Cummins 3278499 Plain Washer is a component designed for use in heavy-duty truck operations. It serves a specific function within the mechanical systems of these vehicles, contributing to their overall efficiency and reliability.

Basic Concepts of Plain Washers

Plain washers are simple yet vital components in mechanical systems. They are typically thin, flat rings made from metal, plastic, or rubber. 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 surface and provides a more secure fastening. Plain washers also play a role in reducing friction between moving parts and can serve as spacers to maintain proper alignment and clearance ¹.

Purpose of the Cummins 3278499 Plain Washer

The Cummins 3278499 Plain Washer is specifically engineered to fulfill a role within the mechanical systems of heavy-duty trucks. It is used to ensure proper load distribution and reduce friction in areas where fasteners are employed. By doing so, it contributes to the stability and longevity of the truck’s components, enhancing overall performance and reliability.

Key Features

The Cummins 3278499 Plain Washer is characterized by several key features. It is made from high-quality materials that ensure durability and resistance to wear. The design specifications of this washer are tailored to meet the demanding requirements of heavy-duty truck applications. It may also possess unique characteristics that set it apart from other plain washers, such as a specific thickness or outer diameter that is optimized for its intended use.

Benefits

The Cummins 3278499 Plain Washer offers several benefits in heavy-duty applications. It improves load distribution, which helps protect surfaces from damage and ensures a more secure fastening. By reducing friction between moving parts, it contributes to smoother operation and decreased wear. Additionally, its durable construction enhances the longevity of the washer, making it a reliable component in demanding environments ².

Installation and Usage

Proper installation of the Cummins 3278499 Plain Washer is crucial for its effective function. It should be placed under the head of a bolt or screw to ensure even load distribution. Best practices for installation include using the correct size washer for the fastener and ensuring it is properly aligned. Common applications within truck maintenance and repair include use in engine components, transmission systems, and chassis assemblies.

Troubleshooting and Maintenance

Regular maintenance of the Cummins 3278499 Plain Washer can help ensure its longevity and optimal performance. Signs of wear or failure, such as cracks or deformation, may indicate the need for replacement. Troubleshooting common issues related to plain washers involves checking for proper alignment and ensuring that the washer is not overloaded or subjected to excessive friction.

Common Applications

The Cummins 3278499 Plain Washer is commonly used in various systems and components within heavy-duty trucks. Typical applications include engine mounts, transmission housings, and chassis components. Its role in these systems is to provide load distribution, reduce friction, and ensure proper alignment and clearance.

Manufacturer Information - Cummins

Cummins is a renowned manufacturer with a long-standing reputation in the industry for producing high-quality automotive components. Their commitment to innovation and quality is evident in the design and construction of the Cummins 3278499 Plain Washer. Cummins’ history of excellence and dedication to meeting the needs of heavy-duty truck operators underscores the reliability and performance of their products.

Cummins Engine Compatibility with Part 3278499

The Plain Washer part number 3278499, manufactured by Cummins, is a versatile component that fits into a variety of Cummins engines. This part is designed to provide a secure seal and prevent leaks in various engine configurations. Here is a detailed look at the engines that are compatible with this washer:

4B3.9 and 6B5.9 Engines

The Plain Washer 3278499 is compatible with the 4B3.9 and 6B5.9 engines. These engines are known for their robust performance and reliability, often used in heavy-duty applications. The washer ensures proper sealing in these engines, maintaining optimal performance.

6C8.3 and ISB Engines

The 6C8.3 and ISB engines also utilize the 3278499 Plain Washer. These engines are part of Cummins’ lineup of high-efficiency and low-emission engines, commonly found in various industrial and commercial applications. The washer’s role in these engines is crucial for maintaining the integrity of the engine’s sealing system.

B4.5 CM2350 B129B and B5.9 G Engines

The B4.5 CM2350 B129B and B5.9 G engines are another set where the 3278499 Plain Washer is applicable. These engines are designed for specific applications requiring high power output and efficiency. The washer ensures that the engine’s components are properly sealed, preventing any potential leaks.

B5.9 GAS PLUS CM556 and QSB5.9 44 CM550 Engines

The B5.9 GAS PLUS CM556 and QSB5.9 44 CM550 engines also benefit from the use of the 3278499 Plain Washer. These engines are engineered for durability and performance, often used in demanding environments. The washer’s role in these engines is to maintain the sealing integrity, ensuring the engine operates efficiently.

F3.8 CM2350 F120B and F3.8 CM2620 F137B Engines

The F3.8 CM2350 F120B and F3.8 CM2620 F137B engines are compatible with the 3278499 Plain Washer. These engines are part of Cummins’ range of smaller, yet powerful engines, often used in various machinery and equipment. The washer ensures that these engines maintain their sealing properties, contributing to their overall performance.

F4.5 CM2620 F139B and QSB5.9 CM850 Engines

The F4.5 CM2620 F139B and QSB5.9 CM850 engines also utilize the 3278499 Plain Washer. These engines are designed for high-performance applications, providing reliable power and efficiency. The washer’s role in these engines is to ensure that the sealing system remains intact, preventing any potential issues.

ISB4.5 CM2350 B104 and QSB6.7 M CM2250 Engines

The ISB4.5 CM2350 B104 and QSB6.7 M CM2250 engines are another set where the 3278499 Plain Washer is used. These engines are engineered for specific applications requiring high power and efficiency. The washer ensures that the engine’s sealing system is maintained, contributing to the engine’s overall performance.

ISX15 CM2350 X101 and QSC8.3 CM850(CM2850) Engines

The ISX15 CM2350 X101 and QSC8.3 CM850(CM2850) engines also utilize the 3278499 Plain Washer. These engines are part of Cummins’ lineup of high-performance engines, often used in heavy-duty applications. The washer ensures that the engine’s sealing system is maintained, contributing to the engine’s efficiency and reliability.

QSF3.8 CM2350 F107 and QSM11 CM570 Engines

The QSF3.8 CM2350 F107 and QSM11 CM570 engines are compatible with the 3278499 Plain Washer. These engines are designed for specific applications requiring high power and efficiency. The washer ensures that the engine’s sealing system is maintained, contributing to the engine’s overall performance.

X15 CM2350 X116B Engines

Lastly, the X15 CM2350 X116B engines also utilize the 3278499 Plain Washer. These engines are part of Cummins’ range of high-performance engines, often used in various machinery and equipment. The washer ensures that the engine’s sealing system is maintained, contributing to the engine’s efficiency and reliability.

Role of Part 3278499 Plain Washer in Various Engine Systems

The part 3278499 Plain Washer is a fundamental component utilized across various engine systems to ensure the smooth operation and longevity of these systems. Its application spans multiple areas, each contributing to the overall efficiency and reliability of the engine.

Air Compressor and Related Systems

In the air compressor and air compressor kit, the Plain Washer is employed to maintain proper sealing between moving parts. This ensures that the compressor operates efficiently without air leaks, which could otherwise reduce performance and increase energy consumption.

For the compressor air inlet arrangement and compressor air inlet plumbing, the Plain Washer helps in securing connections, preventing air leaks that could affect the compressor’s ability to deliver consistent air pressure. Similarly, in the compressor coolant plumbing, it ensures that coolant flows smoothly without leaks, maintaining optimal temperatures within the compressor.

Exhaust and Fuel Systems

Within the exhaust connection and exhaust manifold, the Plain Washer is critical for sealing joints, ensuring that exhaust gases are directed properly without escape, which is essential for both performance and emissions control.

In the exhaust outlet connection and exhaust outlet connection plumbing, it plays a similar role, securing connections to prevent leaks that could lead to decreased engine efficiency and increased emissions.

For the fuel pump coupling, the Plain Washer ensures a tight seal, which is vital for maintaining fuel pressure and preventing leaks that could pose safety hazards.

Turbocharger and Alternator Systems

In the turbocharger arrangement and turbocharger location, the Plain Washer is used to secure mounting points and connections, ensuring that the turbocharger operates within its designed parameters without undue stress or vibration.

For the alternator location and alternator mounting, it helps in maintaining a secure fit, ensuring that the alternator remains stable and operates efficiently to provide the necessary electrical power to the engine systems.

Cooling and Lubrication Systems

The Plain Washer is also integral in the marine gear oil cooler and parts distribution center kit, where it ensures that oil and coolant flows are maintained without leaks, contributing to the efficient cooling and lubrication of engine components.

Additional Applications

In the guard package and heat shield, the Plain Washer is used to secure these components in place, protecting sensitive parts from heat and debris.

For the exhaust recirculation cooler kit and exhaust riser kit, it ensures that all connections are sealed properly, contributing to the effective recirculation of exhaust gases and the maintenance of engine temperature.

In the vibration damper and water pump drive, the Plain Washer helps in securing these components, ensuring they function correctly to reduce vibrations and maintain consistent water pump operation.

Conclusion

The Cummins 3278499 Plain Washer is a versatile and essential component in heavy-duty truck operations. Its role in ensuring proper load distribution, reducing friction, and maintaining alignment and clearance across various engine systems underscores its importance in enhancing the efficiency and reliability of these vehicles. Proper installation, regular maintenance, and understanding its applications are key to maximizing the benefits of this Cummins part.