67946
Plain Washer
Cummins®

The Cummins 67946 Plain Washer is a component designed for use in commercial truck operations. It serves a specific function within the mechanical systems of these vehicles, contributing to the overall efficiency and reliability of truck components. Understanding its purpose and role is fundamental for maintaining and optimizing the performance 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 preventing damage to the surface and providing a more secure fastening ¹. Plain washers also play a role in reducing friction and wear between moving parts, enhancing the stability and longevity of mechanical assemblies ².

Purpose of the Cummins 67946 Plain Washer

The Cummins 67946 Plain Washer is specifically engineered to serve in the demanding environments of commercial trucks. It is applied in various truck components where secure fastening and load distribution are required. This washer helps in maintaining the integrity of connections, ensuring that components remain firmly in place under the stress of heavy-duty operations.

Key Features

The Cummins 67946 Plain Washer is characterized by several key features that make it suitable for heavy-duty applications. It is constructed from high-quality materials that offer durability and resistance to wear. Its dimensions are precisely engineered to fit specific applications, ensuring optimal performance. The design of the washer also considers the environmental conditions it will face, such as exposure to elements and mechanical stress, making it a reliable component for commercial truck operations.

Benefits of Using Cummins 67946 Plain Washer

Incorporating the Cummins 67946 Plain Washer into truck maintenance and repair offers several advantages. Its durable construction ensures long-term reliability, reducing the frequency of replacements and maintenance ³. The washer’s design enhances the performance of fastenings, contributing to the overall efficiency and safety of truck operations. Additionally, its compatibility with various truck components makes it a versatile choice for maintenance professionals.

Installation and Usage Guidelines

Proper installation of the Cummins 67946 Plain Washer is crucial for its effective function. It should be placed under the head of a bolt or screw to distribute the load and prevent surface damage. During installation, it is important to ensure that the washer is correctly aligned and that the fastener is tightened to the manufacturer’s specifications. This ensures optimal performance and longevity of the washer and the components it supports.

Troubleshooting and Maintenance

Common issues with plain washers include wear, deformation, or failure due to excessive load or environmental factors. Regular inspection during maintenance checks 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. Proper maintenance practices, such as keeping the washer and its surroundings clean and free from debris, can also contribute to its longevity and efficient operation.

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 of innovation and quality, Cummins has established a strong reputation in the commercial vehicle industry. The company’s commitment to excellence is reflected in its wide range of products, designed to meet the demanding requirements of various applications, including commercial trucking. Cummins’ focus on quality, performance, and customer satisfaction underscores its position as a trusted provider in the industry.

Cummins Part 67946 Plain Washer Compatibility

The Cummins part 67946 Plain Washer is a versatile component designed to fit a variety of Cummins engines. This washer is essential for ensuring proper sealing and alignment in various engine configurations. Below is a detailed breakdown of the engines with which this washer is compatible:

ISM Series Engines

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

The ISM series engines, including the CM570, CM570/870, CM876, and ISM11 CM876 SN, all utilize the 67946 Plain Washer in their assembly. This washer is crucial for maintaining the integrity of the engine’s sealing and alignment systems.

G Series Engines

• G855
• G855 CM558
• GTA38 G CMEICS G116C
• GTA855 CM558 (CM2358) G101

The G series engines, such as the G855, G855 CM558, GTA38 G CMEICS G116C, and GTA855 CM558 (CM2358) G101, also incorporate the 67946 Plain Washer. This part is integral to the engine’s functionality, ensuring that components are properly sealed and aligned.

K Series Engines

• K19
• K38
• K50

The K series engines, including the K19, K38, and K50, are designed to use the 67946 Plain Washer. This washer plays a critical role in the engine’s assembly, ensuring that all parts fit together seamlessly.

L10 Series Engines

• L10 CELECT
• L10 GAS
• L10 MECHANICAL

The L10 series engines, such as the L10 CELECT, L10 GAS, and L10 MECHANICAL, are compatible with the 67946 Plain Washer. This washer is essential for maintaining the engine’s performance and reliability.

M11 Series Engines

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

The M11 series engines, including the M11 CELECT, M11 CELECT PLUS, and M11 MECHANICAL, all require the 67946 Plain Washer. This washer ensures that the engine’s components are properly sealed and aligned.

N14 Series Engines

• N14 CELECT
• N14 CELECT PLUS
• N14 G
• N14 MECHANICAL

The N14 series engines, such as the N14 CELECT, N14 CELECT PLUS, N14 G, and N14 MECHANICAL, are designed to use the 67946 Plain Washer. This washer is vital for the engine’s assembly and performance.

NH/NT 855

The NH/NT 855 engine also utilizes the 67946 Plain Washer. This washer is essential for ensuring that the engine’s components are properly sealed and aligned.

QSK19 Series Engines

• QSK19 CM2350 K114
• QSK19 CM2350 K144G
• QSK19 CM500

The QSK19 series engines, including the QSK19 CM2350 K114, QSK19 CM2350 K144G, and QSK19 CM500, are compatible with the 67946 Plain Washer. This washer is crucial for maintaining the engine’s performance and reliability.

Role of Part 67946 Plain Washer in Engine Systems

Part 67946 Plain Washer is an essential component in various engine systems, providing necessary support and functionality. In the Base Rails system, it ensures proper alignment and stability of the engine components. Within the Cooler system, particularly the Engine Oil Cooler and Lubricating Oil Filter and Cooler, the plain washer facilitates secure connections and prevents leaks by maintaining a tight seal between components.

In the Engine Mounting system, part 67946 plays a role in securing the engine to the chassis, contributing to the overall stability and vibration dampening of the engine. For the Engine Overhaul Gasket Set, it aids in creating a reliable seal, ensuring that no fluids escape during operation.

The Glow Plug Nozzle and Nozzle systems benefit from the plain washer by ensuring that the nozzles are correctly positioned and sealed, which is vital for the efficient operation of the engine, especially in cold-start conditions.

In the Lube Oil Filter & Co and Lube Oil Filter-Cooler systems, the plain washer helps in maintaining the integrity of the filter housing, ensuring that the lubrication system functions without interruptions. Similarly, in the Lubricating Oil Filter Head and Lubricating Pump Cover, it supports the structural integrity and sealing effectiveness.

For the Mounting Cover Gear Box, the plain washer ensures that the cover is securely attached, protecting the internal components from contaminants. In the Oil Adapter Drain and Oil Cooler Seal Kit, it contributes to leak-proof connections, which is essential for maintaining oil levels and preventing contamination.

The Oil Mounting Pan and Oil Pan Arrangement systems rely on the plain washer to ensure that the pan is correctly sealed to the engine block, preventing oil leaks. In the One Bank Valve system, it assists in maintaining the valve’s position and seal, ensuring optimal engine performance.

For the Reducing Adapter and Scavenge Pump systems, the plain washer ensures that connections are secure and leak-free, which is important for the efficient operation of these components. In the Set Gasket system, it helps in creating a comprehensive seal across various engine components.

In the T C Cooler and Torque Converter Co. systems, the plain washer ensures that cooler and converter components are correctly sealed, contributing to the efficient transfer of power. For the Turbo Location system, it aids in securing the turbocharger to the engine, ensuring it operates within specified parameters.

Lastly, in the Vt903 Short Block Kit, the plain washer plays a role in ensuring that all components within the short block are correctly aligned and sealed, contributing to the overall reliability and performance of the engine.

Conclusion

The Cummins 67946 Plain Washer is a critical component in the maintenance and operation of commercial trucks. Its role in load distribution, secure fastening, and reducing friction and wear makes it indispensable in heavy-duty applications. Proper installation, regular maintenance, and understanding its compatibility with various Cummins engines are essential for maximizing its benefits and ensuring the longevity and efficiency of truck components.