4078957
Lock Washer
Cummins®

The Cummins Part #4078957 Lock Washer is a specialized component designed for use in commercial truck maintenance. This lock washer serves a specific purpose within the fastening systems of trucks, contributing to the overall reliability and safety of the vehicle. Understanding its function and significance is vital for maintaining the integrity of truck assemblies.

Basic Concepts of Lock Washers

Lock washers are a type of washer designed to prevent fastened components from loosening due to vibration or movement. Unlike regular washers, which primarily distribute load and prevent damage to the surface, lock washers incorporate features such as split ends, serrations, or a helical shape. These features create tension or bite into the surfaces they are placed between, thereby enhancing the security of the fastener ¹.

Purpose of the Cummins Part #4078957 Lock Washer

The Cummins Part #4078957 Lock Washer is engineered to play a role in the fastening systems of commercial trucks by providing additional security to bolted connections. It is specifically designed to counteract the effects of vibration and movement, which are common in heavy-duty truck operations. By doing so, it helps maintain the integrity of critical truck components, ensuring they remain securely fastened under various operating conditions ².

Key Features

The Cummins Part #4078957 Lock Washer is characterized by several key features that enhance its functionality. It is typically made from high-strength materials to withstand the rigors of commercial truck use. The design may include serrations or a split configuration, which allows it to grip the surfaces it is placed between, thereby providing additional resistance to loosening. These features contribute to the washer’s effectiveness in demanding applications ³.

Benefits of Using Lock Washers

Incorporating lock washers into truck fastening systems offers several advantages. One of the primary benefits is improved vibration resistance, which is crucial in the dynamic environment of commercial truck operations. Lock washers also enhance fastening security by preventing bolts and nuts from loosening over time, which can lead to component failure or increased maintenance requirements. This added security contributes to the overall safety and reliability of the vehicle ⁴.

Installation Guidelines

Proper installation of the Cummins Part #4078957 Lock Washer is crucial for ensuring optimal performance and longevity. It should be placed under the head of the bolt or nut, with the serrated or split side in contact with the surface to be fastened. Ensuring that the washer is correctly oriented and that the fastener is tightened to the manufacturer’s specified torque is important for achieving the desired level of security and performance.

Common Applications

The Cummins Part #4078957 Lock Washer finds typical applications within various commercial truck assemblies and components. It is commonly used in engine mounts, chassis components, and other areas where secure fastening is critical. Its design and material composition make it suitable for a wide range of applications within the commercial truck industry.

Troubleshooting and Maintenance

Identifying issues related to lock washers involves looking for signs of wear, deformation, or failure. Regular inspection and replacement of worn or damaged lock washers are recommended to maintain the security of fastened components. Additionally, ensuring that fasteners are properly torqued and that lock washers are correctly installed can help prolong the life of both the washer and the associated fasteners.

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 commitment to quality, Cummins serves commercial vehicle, equipment, and engine markets. The company’s product range includes a variety of components and systems designed to enhance the performance, efficiency, and reliability of commercial vehicles.

Lock Washer 4078957 Compatibility with Cummins Engines

The Lock Washer part number 4078957, manufactured by Cummins, is a critical component designed to ensure secure fastening in various engine applications. This part is engineered to fit seamlessly with several Cummins engine models, enhancing the reliability and safety of engine assemblies.

K38 and K50 Engines

The K38 and K50 engines are part of Cummins’ robust lineup, known for their durability and performance. The Lock Washer 4078957 is specifically designed to integrate with these engines, providing a secure fastening solution that prevents loosening due to vibration or movement. This ensures that critical engine components remain tightly secured, contributing to the overall efficiency and longevity of the engine.

QSK50 and CM2150 Engines

The QSK50 and CM2150 engines represent Cummins’ advanced engineering capabilities, offering high power output and reliability. The Lock Washer 4078957 is engineered to fit these engines, ensuring that all bolted connections are held firmly in place. This is particularly important in high-stress environments where engine components are subjected to significant forces.

K107 Engine

The K107 engine is another model in Cummins’ extensive range, designed for specific applications requiring robust performance. The Lock Washer 4078957 is compatible with the K107 engine, providing a dependable fastening solution that enhances the engine’s structural integrity. This ensures that the engine operates smoothly and efficiently, with all components securely fastened.

By using the Lock Washer 4078957 across these various engine models, Cummins ensures that their engines maintain high standards of performance and reliability. This compatibility highlights the versatility and quality of Cummins’ components, making them a trusted choice for engine maintenance and repair.

Role of Part 4078957 Lock Washer in Engine Systems

In the context of engine systems, particularly those involving heat exchangers and cooling systems, the part 4078957 Lock Washer serves an important function in maintaining the integrity and efficiency of various components.

Heat Exchanger Applications

Within heat exchangers, the Lock Washer is often used to secure bolts and fasteners that hold the heat exchanger components together. This ensures that the connections remain tight under varying thermal conditions, preventing leaks and maintaining the efficiency of heat transfer. The washer helps to distribute the load of the fastener, reducing the risk of damage to the heat exchanger surfaces.

Engine Cooling System

In the engine cooling system, the Lock Washer is employed in the assembly of radiators, coolant hoses, and thermostat housings. By securing the fasteners in these applications, the washer helps to ensure that coolant flows smoothly without interruption, which is essential for maintaining optimal engine temperature. This is particularly important in high-stress environments where vibrations and thermal expansion could otherwise loosen connections.

General System Integration

Across various engine systems, the Lock Washer is a common component in the assembly of sensors, fuel injectors, and other critical parts. Its role in these applications is to provide additional security to the fasteners, ensuring that components remain firmly in place during engine operation. This is vital for the consistent performance and longevity of the engine system.

Conclusion

In summary, the part 4078957 Lock Washer plays a significant role in enhancing the reliability and performance of engine systems by securing fasteners in critical applications, thereby contributing to the overall efficiency and durability of the engine.