3893940
Hexagon Head Cap Screw
Cummins®

The 3893940 Hexagon Head Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial trucks. Cummins, a well-established name in the commercial truck industry, produces a range of components that ensure the reliability and efficiency of truck operations. This part is integral to the assembly and maintenance of various truck components, contributing to the overall performance and durability of commercial vehicles.

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. They function by creating a strong, stable connection that can withstand significant stress and vibration, making them suitable for a variety of applications in the automotive and heavy-duty truck industries ¹.

Purpose of the 3893940 Hexagon Head Cap Screw in Truck Operations

The 3893940 Hexagon Head Cap Screw plays a specific role in the operation and maintenance of commercial trucks. It is typically used in areas where secure fastening is required, such as within the truck’s structure or engine components. This screw helps to maintain the integrity of critical assemblies, ensuring that parts remain firmly in place under operational stress ².

Key Features

The 3893940 Hexagon Head Cap Screw boasts several key features that enhance its functionality and durability. It is composed of high-quality materials, ensuring resistance to corrosion and wear. The screw features a specific thread type that provides a strong grip, and its design includes elements that improve load distribution and reduce the risk of loosening over time ³.

Benefits

Using the 3893940 Hexagon Head Cap Screw offers several advantages. Its design allows for improved load distribution across the fastened components, enhancing the overall stability of the assembly. The screw’s resistance to loosening ensures that connections remain secure, even under dynamic conditions. Additionally, the hexagonal head facilitates easy installation and removal, making maintenance procedures more efficient.

Installation and Usage Guidelines

Proper installation of the 3893940 Hexagon Head Cap Screw involves several steps to ensure optimal performance. It is recommended to use the appropriate tools, such as a torque wrench, to achieve the specified torque settings. This ensures that the screw is tightened to the correct level, providing a secure connection without over-tightening, which could damage the components or the screw itself.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening, corrosion, and damage from over-tightening. To troubleshoot these problems, regular inspections should be conducted to check for signs of wear or corrosion. Maintenance tips include applying an anti-seize compound to prevent corrosion and ensuring that the screw is not over-tightened during installation.

Safety Considerations

When working with Hexagon Head Cap Screws, it is important to observe several safety practices. Proper handling and installation procedures should be followed to prevent accidents and ensure the integrity of the components. Using the correct tools and torque settings is crucial to avoid damage to the screw or the fastened components.

Cummins: Manufacturer Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its high-quality components and engines. Founded in 1919, Cummins has a long history of innovation and reliability. The company offers a wide range of products, including engines, filtration systems, and aftermarket parts, all designed to enhance the performance and durability of commercial trucks. Cummins’ reputation for quality and dependability makes it a preferred choice for truck manufacturers and fleet operators.

Hexagon Head Cap Screw (Part 3893940) in Cummins Engines

The Hexagon Head Cap Screw, identified by the part number 3893940, is a critical component in several Cummins engine models. This screw is integral to the assembly and maintenance of the engines, ensuring secure fastening and stability of various parts.

L10 CELECT

In the L10 CELECT engine, the Hexagon Head Cap Screw is utilized in several key areas. It is often employed in securing components that require precise alignment and robust fastening. This ensures that the engine operates smoothly and efficiently, maintaining the integrity of the engine’s structure.

M11 CELECT PLUS and M11 MECHANICAL

For the M11 CELECT PLUS and M11 MECHANICAL engines, the Hexagon Head Cap Screw is similarly essential. These engines benefit from the screw’s ability to provide a tight and reliable connection, which is crucial for the high-performance demands of these models. The screw’s design allows for easy installation and removal, facilitating maintenance and repairs.

The Hexagon Head Cap Screw is a versatile component that plays a pivotal role in the assembly and functionality of the L10 CELECT, M11 CELECT PLUS, and M11 MECHANICAL engines. Its design and material ensure that it can withstand the rigors of engine operation, providing long-lasting performance and reliability.

Role of Part 3893940 Hexagon Head Cap Screw in Engine Systems

In the intricate assembly of engine systems, the part 3893940 Hexagon Head Cap Screw serves as a vital fastening element, ensuring the secure attachment of various components. This screw is integral in maintaining the structural integrity and operational efficiency of the engine.

Brake System Integration

Within the brake system, the Hexagon Head Cap Screw is employed to fasten brake components such as calipers, brackets, and mounting hardware. Its robust design ensures that these elements remain firmly in place, even under the high stress and vibration experienced during braking. This secure attachment is essential for the consistent performance and safety of the braking mechanism.

Engine Assembly

In the engine assembly, the Hexagon Head Cap Screw is utilized to connect critical components such as cylinder heads, valve covers, and intake manifolds. By providing a strong and reliable fastening solution, it helps maintain the precise alignment and sealing of these parts, which is vital for the engine’s overall performance and durability.

Lever and Rocker Arm Applications

The screw also plays a significant role in the lever and rocker arm systems. It is used to secure lever assemblies and rocker arms to their respective mounts and pivot points. This ensures that these components operate with minimal play and maximum efficiency, contributing to the smooth and responsive operation of the engine’s valve train.

Overall, the part 3893940 Hexagon Head Cap Screw is a fundamental component in the secure and efficient operation of various engine systems, highlighting its importance in both the assembly and functionality of modern engines.

Conclusion

The 3893940 Hexagon Head Cap Screw is a critical component in the assembly and maintenance of commercial trucks and Cummins engines. Its design and material ensure durability and resistance to corrosion, providing a secure and reliable fastening solution. Proper installation and maintenance are essential to ensure the longevity and performance of this part, contributing to the overall efficiency and safety of truck operations.