3906289
Female Connector
Cummins®

The 3906289 Hexagon Head Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial truck maintenance and operation. Cummins, a well-established name in the commercial truck industry, produces a range of high-quality components, including this particular screw, which plays a role in ensuring the reliability and efficiency of truck systems.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. These screws are commonly used in mechanical assemblies to secure components together. The hexagonal shape of the head provides a stable and secure grip, reducing the risk of cam-out during installation and removal. The threaded shaft of the screw engages with a corresponding threaded hole, creating a strong and durable connection between parts ¹.

Purpose of the 3906289 Hexagon Head Cap Screw in Truck Operation

This Cummins part is specifically designed for applications within commercial trucks. It plays a role in securing various components and assemblies, ensuring they remain firmly in place under operational stresses. This screw is utilized in different truck systems, including the engine, transmission, and chassis, where reliable fastening is crucial for performance and safety. Its design allows it to withstand significant loads and vibrations, making it suitable for the demanding conditions encountered in truck operation ².

Key Features of the 3906289 Hexagon Head Cap Screw

The 3906289 is distinguished by several design and material characteristics. Its hexagonal head shape provides a robust interface for tools, facilitating easy and secure installation and removal. The screw features precise threading that ensures a strong and reliable connection. Additionally, it may include special coatings or treatments to enhance its durability and resistance to corrosion, making it suitable for use in various environmental conditions ³.

Benefits of Using the 3906289 Hexagon Head Cap Screw

This part offers several advantages. Its design contributes to enhanced durability, allowing it to withstand the rigors of commercial truck operation. The screw’s resistance to loosening ensures that connections remain secure over time, reducing the need for frequent maintenance. Additionally, its ease of installation and removal simplifies repair and maintenance procedures, saving time and effort for technicians ⁴.

Installation and Usage Guidelines

Proper installation of the 3906289 is vital for ensuring its effectiveness. It should be installed using the appropriate torque specifications to achieve the desired clamping force without over-tightening, which could damage the screw or the components being fastened. Recommended tools include a wrench or socket that fits the hexagonal head precisely. Following manufacturer guidelines for installation will help maintain the screw’s integrity and performance.

Troubleshooting and Maintenance Tips

Common issues with Hexagon Head Cap Screws, such as corrosion or stripping, can be mitigated through proper maintenance practices. Regular inspection for signs of wear or damage is recommended to ensure the screw remains in good condition. In environments where corrosion is a concern, applying a protective coating or using screws with corrosion-resistant properties can enhance longevity. If a screw becomes stripped, it should be replaced to maintain the security of the fastened components.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and related components. With a history of innovation and a commitment to quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product range is designed to meet the demanding requirements of commercial applications, ensuring reliability, efficiency, and performance. Cummins’ dedication to excellence is reflected in its components, such as the 3906289, which contribute to the overall functionality and durability of commercial trucks.

Cummins Engine Compatibility with Hexagon Head Cap Screw Part 3906289

The Cummins part number 3906289, a Hexagon Head Cap Screw, is a critical component in the assembly and maintenance of various Cummins engines. This screw is integral to the structural integrity and operational efficiency of the engines, ensuring that parts are securely fastened and aligned.

4B3.9 Engine

In the 4B3.9 engine, the Hexagon Head Cap Screw 3906289 is utilized in several key areas. It is essential for securing the engine block, cylinder heads, and other critical components. The precision and strength of this screw help maintain the alignment and stability of the engine, contributing to its overall performance and longevity.

6B5.9 Engine

Similarly, in the 6B5.9 engine, the Hexagon Head Cap Screw 3906289 plays a vital role. This screw is used in various applications, including the fastening of engine mounts, brackets, and other structural elements. Its robust design ensures that these components remain securely in place, even under the high stresses and vibrations typical of engine operation.

Grouping of Engines

Both the 4B3.9 and 6B5.9 engines benefit from the use of the Hexagon Head Cap Screw 3906289 in their respective assemblies. This part is designed to meet the stringent requirements of Cummins engines, ensuring compatibility and reliability across different engine models. The use of this screw in both engines highlights its versatility and importance in maintaining the structural integrity and performance of Cummins engines.

Role of Part 3906289 Hexagon Head Cap Screw in Engine Systems

The part 3906289 Hexagon Head Cap Screw is instrumental in securing various components within engine systems, ensuring their stability and proper function.

In signal generating devices, this screw is often used to mount sensors and transducers that convert physical parameters into electrical signals. Its role here is to provide a secure attachment point, ensuring that the sensors remain in place and operate under varying engine conditions.

Within engine instrumentation, the screw is employed to fasten gauges and displays to the engine panel. This ensures that the instrumentation remains fixed and aligned, providing accurate readings and reliable data to the operator.

For engine monitoring systems, the screw is vital in attaching monitoring units that track engine performance metrics. These units need to be securely mounted to avoid any movement that could lead to inaccurate data collection.

On the engine instrument panel, the screw is used to secure various instruments and controls. This ensures that all components are firmly in place, allowing for easy access and operation by the user.

Conclusion

In summary, the part 3906289 Hexagon Head Cap Screw plays a significant role in maintaining the integrity and functionality of various engine components by providing a reliable fastening solution. Its design and features make it well-suited for the demanding conditions of commercial truck operation, ensuring that components remain securely fastened and aligned.