3904222
Hexagon Head Cap Screw
Cummins®

Introduction

The Hexagon Head Cap Screw is a fundamental component in commercial trucks, providing secure fastening solutions that are vital for the integrity and safety of vehicle assemblies. Manufactured by Cummins, a renowned name in the commercial truck industry, the 3904222 Hexagon Head Cap Screw is designed to meet the rigorous demands of heavy-duty applications. This overview delves into the specifics of this screw, its role in truck operations, and the qualities that make it a reliable choice for professionals in the field.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is characterized by its hexagonal head, which allows for efficient torque application using a wrench or socket. This design ensures that the screw can be tightened and loosened with precision, reducing the risk of damage to the screw or the surrounding components. In fastening applications, these screws play a role by securely joining parts together, distributing load evenly, and resisting loosening over time due to vibrations or other dynamic forces ¹.

Purpose of the 3904222 Hexagon Head Cap Screw in Truck Operations

The 3904222 Hexagon Head Cap Screw is integral to the assembly and maintenance of commercial trucks. It is used in various applications where strong, durable fastening is required. This includes securing engine components, attaching body panels, and fastening chassis parts. The screw’s design ensures that it can withstand the high stresses and vibrations encountered in truck operations, contributing to the overall reliability and safety of the vehicle ².

Key Features of the 3904222 Hexagon Head Cap Screw

The 3904222 Hexagon Head Cap Screw is engineered with specific attributes that make it suitable for heavy-duty applications. It is crafted from high-strength materials, ensuring durability and resistance to wear. The threading is designed to provide a strong grip, minimizing the risk of loosening. Additionally, the hexagonal head design facilitates easy installation and removal, allowing for efficient maintenance and repair processes.

Benefits of Using the 3904222 Hexagon Head Cap Screw

Utilizing the 3904222 Hexagon Head Cap Screw offers several advantages. Its robust construction ensures long-lasting performance, reducing the need for frequent replacements. The ease of use, thanks to its hexagonal head, allows for quick and secure fastening. Moreover, the screw’s resistance to loosening helps maintain the integrity of fastened components, enhancing the safety and reliability of the truck ³.

Installation Guidelines for the 3904222 Hexagon Head Cap Screw

To ensure secure fastening and longevity of the 3904222 Hexagon Head Cap Screw, follow these installation guidelines:

1. Clean the fastening area to remove any debris or corrosion.
2. Align the screw with the designated hole.
3. Use a wrench or socket to tighten the screw gradually, applying even pressure.
4. Avoid over-tightening, which can lead to damage or stripping of the screw or the surrounding material.
5. Check the torque specifications provided by the manufacturer to ensure proper tightening.

Troubleshooting Common Issues with Hexagon Head Cap Screws

Frequent problems associated with Hexagon Head Cap Screws include loosening, corrosion, and damage to the hexagonal head. To address these issues:

• Regularly inspect screws for signs of loosening and retighten as necessary.
• Apply a corrosion-resistant coating to protect against environmental factors.
• Use the appropriate tools to avoid damaging the hexagonal head during installation or removal.

Maintenance Tips for Hexagon Head Cap Screws

To prolong the life of the 3904222 Hexagon Head Cap Screw and ensure ongoing performance:

• Conduct regular inspections to check for signs of wear or damage.
• Lubricate screws in moving parts to reduce friction and wear.
• Replace screws that show significant wear or damage to maintain the integrity of the fastening.

Cummins: A Brief Overview

Cummins is a leading manufacturer in the commercial truck industry, known for its commitment to quality and innovation. With a rich history of producing reliable and high-performance components, Cummins offers a wide range of products designed to meet the demands of heavy-duty applications. Their dedication to excellence ensures that each part, including the 3904222 Hexagon Head Cap Screw, is engineered to deliver superior performance and durability.

Cummins Engine Compatibility with Part 3904222

The Cummins part 3904222, a Hexagon Head Cap Screw, is designed to fit seamlessly within a variety of Cummins engine models. This part is integral to the assembly and maintenance of these engines, ensuring secure fastening and reliable performance.

4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines both benefit from the use of the Hexagon Head Cap Screw 3904222. This part is crucial for maintaining the structural integrity of these engines, providing a secure connection in various components.

B5.9 G, ISB CM850, and QSB5.9 CM850 Engines

The B5.9 G, ISB CM850, and QSB5.9 CM850 engines also utilize the Hexagon Head Cap Screw 3904222. This part is essential for the assembly and maintenance of these engines, ensuring that all components are securely fastened and properly aligned.

QST30 CM2350 T101 and QST30 CM552 Engines

The QST30 CM2350 T101 and QST30 CM552 engines incorporate the Hexagon Head Cap Screw 3904222 in their design. This part plays a vital role in the assembly and maintenance of these engines, providing the necessary secure fastening for various components.

Each of these engines relies on the precision and reliability of the Hexagon Head Cap Screw 3904222 to ensure optimal performance and longevity.

Role of Part 3904222 Hexagon Head Cap Screw in Engine Systems

The part 3904222 Hexagon Head Cap Screw is integral to the secure assembly and operation of various engine systems. In the context of the alternator location, this screw ensures the alternator is firmly mounted, allowing for stable operation and efficient power generation.

Within the module and engine control systems, the screw plays a key role in maintaining the structural integrity of components, ensuring that electrical connections and control modules remain securely in place. This is essential for the reliable transmission of signals and power throughout the engine system.

For mounting purposes, the 3904222 screw is often used to attach the alternator to its designated location on the engine, providing a robust connection that can withstand the vibrations and stresses of engine operation.

In plumbing systems, particularly those involving engine oil primer and fuel lines, the screw is employed to secure fittings and connections. This ensures that there are no leaks and that the flow of fluids is consistent and reliable.

When it comes to the fuel filter and pump, the screw helps in maintaining the secure attachment of these components, which is vital for the proper filtration and delivery of fuel to the engine.

Lastly, in raw water systems, the 3904222 screw is used to ensure that plumbing connections are tight and secure, preventing any potential water ingress or leaks that could affect engine performance.

Conclusion

The 3904222 Hexagon Head Cap Screw by Cummins is a critical component in the assembly and maintenance of commercial trucks and engines. Its robust design, ease of use, and resistance to loosening make it a reliable choice for heavy-duty applications. Proper installation, regular maintenance, and troubleshooting of common issues ensure the longevity and performance of this essential part.