3864066
Hexagon Head Cap Screw
Cummins®

The 3864066 Hexagon Head Cap Screw is a specialized fastener designed for use in heavy-duty trucks. Manufactured by Cummins, a renowned name in the automotive industry, this screw is engineered to meet the demanding requirements of heavy-duty applications ¹.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket ². In the automotive industry, these screws are commonly used to secure engine components, chassis parts, and other critical assemblies. Mechanically, the hexagonal head provides a stable interface for applying torque, ensuring that the screw remains securely fastened under various operating conditions.

Purpose and Role in Truck Operation

This Cummins part is specifically designed to secure components in heavy-duty trucks. Its role is to provide a reliable and durable connection between parts, ensuring that they remain firmly in place during operation. This screw contributes to the overall operation and maintenance of the vehicle by offering a secure fastening solution that can withstand the rigors of heavy-duty use ³.

Key Features

The 3864066 boasts several key features that enhance its functionality. It is composed of high-strength materials, ensuring durability and resistance to wear. The screw features a specific thread type that provides a strong grip, preventing loosening over time. Additionally, unique design elements such as a countersunk head may be present to allow for flush mounting with the surface, reducing the risk of damage to adjacent components.

Benefits

Using the 3864066 offers several benefits. Its durable material composition ensures long-lasting performance, while its resistance to corrosion makes it suitable for use in various environments. The screw’s design also facilitates ease of installation, allowing for quick and efficient fastening. These attributes contribute to the screw’s reliability and effectiveness in heavy-duty applications.

Installation and Usage

Proper installation of the 3864066 is crucial for ensuring its effectiveness. Guidelines for installation include using the appropriate torque specifications to achieve the desired clamping force without over-tightening. Recommended tools for installation may include a torque wrench and a suitable socket or wrench to engage the hexagonal head. Following these guidelines helps to ensure a secure and lasting connection.

Troubleshooting and Maintenance

Common issues associated with Hexagon Head Cap Screws include loosening over time and corrosion. To troubleshoot these issues, regular inspections should be conducted to check for signs of wear or damage. Maintenance tips include applying a thread locker to prevent loosening and using corrosion-resistant coatings to protect against environmental factors. These practices help to ensure the longevity and optimal performance of the screw.

Safety Considerations

When handling and installing the 3864066, it is important to observe safety considerations. This includes wearing personal protective equipment such as gloves and safety glasses to protect against injury. Proper handling techniques, such as using the correct tools and following torque specifications, are also vital to ensure a safe and effective installation process.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for producing high-quality automotive components, particularly for heavy-duty trucks. The company’s commitment to innovation and excellence is reflected in its wide range of products, including the 3864066.

Cummins Hexagon Head Cap Screw 3864066 in Engine Applications

The Cummins Hexagon Head Cap Screw 3864066 is a critical component in various engine assemblies, ensuring structural integrity and secure fastening. This part is integral to the assembly and maintenance of several Cummins engines, including the QSB3.3 CM2150.

In the QSB3.3 CM2150 engine, the 3864066 screw is utilized in multiple applications where robust fastening is required. Its design, featuring a hexagonal head, allows for efficient torque application using standard tools, ensuring that connections remain tight and secure under operational stresses.

This screw is also compatible with other Cummins engines, where it serves similar purposes. Its application extends across various engine components, including but not limited to, mounting brackets, engine covers, and internal structural supports. The precision engineering of the 3864066 screw ensures that it meets the stringent requirements of high-performance engine environments, contributing to the overall reliability and longevity of the engine.

Role of Part 3864066 Hexagon Head Cap Screw in Engine Systems

The part 3864066 Hexagon Head Cap Screw is integral to the assembly and secure functioning of various engine components. It is commonly used in fastening the Accessory Drive to ensure smooth operation of the Accessory Drive Pulley. This, in turn, supports the efficient transfer of power to components like the Alternator Mounting and the Air Intake Connection.

In the Crankcase system, the Hexagon Head Cap Screw plays a role in securing the Breather, which is essential for maintaining the correct pressure within the crankcase. It also aids in the secure attachment of the Compressor and Air systems, ensuring that these components operate without undue stress or movement.

Within the Connecting Rod and Piston assembly, this screw is used to maintain the integrity of the Cooler and Engine Oil systems. It ensures that the Drain and Remote Oil systems are correctly plumbed and that there is no leakage or inefficient flow of oil.

The Drive Fan and Drive Pulley Accessory systems rely on the Hexagon Head Cap Screw to maintain their structural integrity. This is particularly important in high-stress environments where vibrations and thermal expansion can loosen components over time.

In the Manifold and Air Intake systems, the screw is used to secure mounting points, ensuring that these components remain fixed and do not shift during engine operation. This is vital for maintaining the correct airflow and pressure within the engine.

Lastly, in the Oil Pan system, the Hexagon Head Cap Screw is used to secure the Plumbing and Crankcase Breather, ensuring that the oil pan remains sealed and that there is no contamination or loss of oil. This screw also plays a role in the secure attachment of the Accessory Drive Pulley to the Oil Pan, ensuring that the drive system operates efficiently.

Conclusion

The 3864066 Hexagon Head Cap Screw is a vital component in the maintenance and operation of heavy-duty trucks, particularly in Cummins engines. Its robust design, durable materials, and precise engineering make it an essential part for securing various engine components, ensuring the reliability and longevity of the vehicle.