4066879
Hexagon Socket Cap Screw
Cummins®

The 4066879 Hexagon Socket Head Screw, a component manufactured by Cummins, plays a significant role in the assembly and maintenance of commercial trucks. Cummins is renowned for its commitment to quality and durability, making this part a reliable choice for truck operators and maintenance professionals ¹.

Basic Concepts of Hexagon Socket Head Screw

A Hexagon Socket Head Screw is characterized by its hexagonal socket in the head, allowing for easy installation and removal using a hex key. This design provides a more secure fit compared to traditional slotted or Phillips head screws, reducing the risk of cam-out during tightening ².

Role of Hexagon Socket Head Screw in Truck Operation

This Cummins part is used in various applications across the truck, including securing engine components, attaching body panels, and fastening chassis parts. Its role is vital in maintaining the structural integrity and operational efficiency of the truck by ensuring that components remain securely fastened under various driving conditions ³.

Key Features

The 4066879 Hexagon Socket Head Screw boasts several key features that enhance its performance and durability. Its hexagonal socket design allows for efficient torque transfer and reduces the likelihood of stripping during installation. The screw is made from high-quality materials, ensuring resistance to corrosion and wear, which is crucial for components exposed to the elements. Additionally, its design may include features such as a countersunk head for flush mounting or a coated surface to further protect against environmental factors.

Benefits

Utilizing the 4066879 Hexagon Socket Head Screw offers several benefits. The secure fit provided by the hexagonal socket design enhances fastening security, reducing the risk of loosening over time. Ease of installation is another advantage, as the hex socket allows for quick and efficient tightening or removal without the need for specialized tools. Furthermore, the screw’s resistance to corrosion and wear contributes to its longevity, making it a cost-effective fastening solution for commercial trucks.

Installation and Usage

Proper installation of the 4066879 Hexagon Socket Head Screw is key to ensuring a secure and lasting fastening. It is recommended to use the appropriate size hex key to avoid damaging the socket. When tightening, apply even pressure to distribute the clamping force effectively. For applications where vibration is a concern, using a thread locker can help prevent loosening. Always ensure that the screw is installed to the manufacturer’s specified torque settings to achieve optimal performance.

Troubleshooting and Maintenance

Common issues with Hexagon Socket Head Screws, such as loosening or corrosion, can often be addressed through regular maintenance. Inspecting screws for signs of wear or corrosion and tightening them as necessary can help maintain their effectiveness. In cases where corrosion is severe, replacing the screw may be the best course of action to ensure continued secure fastening. Keeping screws clean and free of debris can also extend their lifespan.

Cummins: Manufacturer Overview

Cummins is a leading manufacturer in the commercial truck industry, known for its commitment to quality and innovation. The company offers a wide range of products designed to enhance the performance, efficiency, and reliability of commercial trucks. Cummins’ reputation is built on its dedication to producing parts that meet the demanding requirements of the trucking industry, ensuring that operators can rely on their equipment for durability and performance.

Hexagon Socket Head Screw 4066879 in Cummins Engines

The Cummins part number 4066879, a Hexagon Socket Head Screw, is a critical component in various Cummins engine models. This screw is integral to the assembly and maintenance of the engines, ensuring secure fastening of parts and components.

QSK60 Series

In the QSK60 series, the Hexagon Socket Head Screw 4066879 is utilized in both the QSK60 CM850 MCRS and QSK60 G CM2358 K110 engines. These engines are part of Cummins’ QSK series, known for their robust design and high performance. The screw is used in various applications within these engines, including securing engine covers, mounting brackets, and other critical components.

QSK60G

The QSK60G engine also incorporates the 4066879 screw. This engine is part of the same series and shares many components with the QSK60 models, ensuring compatibility and ease of maintenance.

QSK78 Series

In the QSK78 CM500 engine, the Hexagon Socket Head Screw 4066879 plays a vital role in maintaining the structural integrity of the engine. This engine, part of the QSK78 series, is designed for heavy-duty applications and requires reliable fastening solutions to withstand the rigors of its operational environment.

The use of the 4066879 screw across these engines highlights its importance in ensuring the engines’ reliability and performance. Cummins’ design philosophy emphasizes the use of high-quality components, and this screw is no exception, providing the necessary strength and durability for its intended applications.

Part 4066879 Hexagon Socket Head Screw Component Usage

The 4066879 Hexagon Socket Head Screw is integral to the assembly and maintenance of various engine components, particularly those involved in the lubrication system.

In the lubricating oil pump, this screw plays a significant role in securing components that ensure the pump operates efficiently. It is used to fasten parts of the pump housing, ensuring that the internal components remain aligned and sealed properly. This alignment is essential for maintaining the pressure and flow rate of the lubricating oil, which is vital for the engine’s performance and longevity.

When considering the broader pump systems within an engine, the Hexagon Socket Head Screw is often employed to secure impellers, shafts, and other moving parts. Its design allows for easy installation and removal using common tools, which is beneficial during routine maintenance or repairs. The screw’s robust construction ensures that it can withstand the dynamic forces and vibrations inherent in pump operations.

In the context of lubricating oil systems, this screw is used to secure filters, sensors, and other ancillary components. Ensuring these parts are firmly attached is important for the accurate monitoring and regulation of oil flow and pressure. This, in turn, helps in maintaining optimal lubrication throughout the engine, reducing wear and enhancing overall efficiency.

Overall, the 4066879 Hexagon Socket Head Screw is a versatile fastener that contributes to the reliable operation of engine components by providing secure and stable connections.

Conclusion

The 4066879 Hexagon Socket Head Screw is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its design, featuring a hexagonal socket, ensures secure fastening and easy installation, contributing to the structural integrity and efficiency of the vehicles it is used in. Cummins’ commitment to quality and durability is evident in this part, making it a reliable choice for truck operators and maintenance professionals. Regular maintenance and proper installation are key to maximizing the benefits of this screw, ensuring long-term performance and reliability.