3093901
Hexagon Head Cap Screw
Cummins®

The 3093901 Hexagon Head Cap Screw, manufactured by Cummins, is a specialized fastener designed for heavy-duty truck applications. This screw plays a role in securing various components within the truck’s structure, ensuring both stability and functionality. Cummins, a well-established name in the automotive and heavy-duty truck industry, produces this component with a focus on durability and performance.

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. The design of these screws facilitates secure fastening in mechanical assemblies. Cap screws, in general, are used to join components that may require frequent disassembly or adjustment, making them ideal for applications where maintenance and repair are common ¹.

Purpose and Role in Truck Operation

The 3093901 Hexagon Head Cap Screw serves a specific purpose in heavy-duty trucks by securing critical components that contribute to the vehicle’s structural integrity and operational efficiency. It is used in applications where high tensile strength and resistance to vibration are required, ensuring that parts remain firmly attached under the demanding conditions typical of heavy-duty truck operation ².

Key Features

This Cummins part is crafted from high-quality materials, ensuring durability and reliability. Its thread type is designed to provide a strong grip, minimizing the risk of loosening over time. Unique design elements, such as a corrosion-resistant coating, enhance its performance and longevity, making it suitable for use in harsh operating environments ³.

Benefits

Utilizing the 3093901 Hexagon Head Cap Screw offers several advantages. It contributes to improved load distribution across fastened components, reducing the risk of structural failure. Its design resists loosening, maintaining secure connections even under vibration and dynamic loads. Additionally, the screw’s durability ensures longevity, reducing the need for frequent replacements and maintenance ⁴.

Installation and Usage Guidelines

Proper installation of the 3093901 Hexagon Head Cap Screw involves several steps to ensure a secure and effective fastening. It is important to clean the mating surfaces before installation to prevent corrosion and ensure a tight fit. Using the correct torque specifications is crucial to avoid over-tightening, which can damage threads, or under-tightening, which can lead to loosening. Employing a wrench or socket that fits the hexagonal head precisely will facilitate efficient and safe installation.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening due to vibration and corrosion. Regular inspection and maintenance can help identify and address these problems early. Applying a thread locker during installation can prevent loosening, while using a corrosion-inhibiting lubricant can protect against rust and corrosion. Should a screw show signs of wear or damage, it should be replaced promptly to maintain the integrity of the fastened components.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong presence in the automotive and heavy-duty truck industry, Cummins is known for its commitment to quality and innovation. The company’s extensive range of components, including the 3093901 Hexagon Head Cap Screw, reflects its dedication to providing reliable and high-performance parts for the demanding requirements of heavy-duty applications.

3093901 in Cummins Engines

The Cummins Hexagon Head Cap Screw part number 3093901 is a critical component in several of the company’s engine models. This part is designed to provide secure fastening in various engine applications, ensuring that components remain tightly secured under operational stresses.

QSK60 Series

The QSK60 series engines, including the QSK60 CM500, QSK60 CM850 MCRS, and QSK60 G CM2358 K110, utilize the 3093901 screw in multiple locations. These engines are known for their robust design and high performance, often used in heavy-duty applications such as marine and industrial settings. The screw’s hexagonal head allows for easy and efficient tightening with a wrench or socket, which is crucial in these demanding environments.

QSK60G

The QSK60G engine also incorporates the 3093901 screw. This engine variant is designed to meet specific performance and efficiency standards, often used in applications where reliability and power are paramount. The screw’s design ensures that it can withstand the operational stresses and vibrations inherent in such engines.

QST30 Series

The QST30 CM552 engine is another model that features the 3093901 screw. This engine is typically used in applications requiring a balance of power and efficiency. The screw’s use in this engine highlights its versatility and importance in maintaining the structural integrity of the engine components.

Role of 3093901 in Engine Systems

The 3093901 Hexagon Head Cap Screw is integral to the assembly and securement of various components within engine systems. Its role is multifaceted, ensuring the stability and proper functioning of several key elements.

Aftercooler and Brackets

In the aftercooler system, the 3093901 screw is used to fasten the aftercooler (left) brackets and aftercooler (right) brackets. This securement is vital for maintaining the structural integrity of the aftercooler, which is responsible for cooling the compressed air from the turbocharger before it enters the engine. Proper attachment of these brackets ensures efficient cooling and reduces the risk of component misalignment or failure.

Filter and Lubricating Oil

The screw is also employed in the securement of the filter housing, which is essential for maintaining the purity of the lubricating oil. Clean oil is paramount for the longevity and performance of engine components, and the secure attachment of the filter housing prevents oil contamination and ensures consistent filtration.

Injection Timing Kit and Manifold

Within the injection timing kit, the 3093901 screw plays a role in securing components that are critical for the precise timing of fuel injection. This precision is necessary for optimal engine performance and fuel efficiency. Similarly, in the manifold, the screw ensures that the connections between the manifold and other engine components are tight and secure, preventing leaks and ensuring smooth airflow.

Air Intake and Engine Control Module

The air intake system relies on the 3093901 screw to secure components that direct air into the engine. Proper securement is essential for maintaining the integrity of the air intake path and ensuring that the engine receives a consistent supply of air. Additionally, the screw is used in the mounting of the engine control module (ECM), which is the brain of the engine, controlling various functions to optimize performance and efficiency.

Fuel System Components

In the fuel system, the 3093901 screw is utilized in the securement of the fuel filter and plumbing components. This ensures that the fuel delivery system remains intact, providing a reliable supply of fuel to the engine. Secure attachment of these components prevents fuel leaks and maintains the efficiency of the fuel delivery system.

Electronic Engine Monitor

The electronic engine monitor, which continuously assesses engine performance and conditions, also benefits from the securement provided by the 3093901 screw. Proper attachment of this monitor ensures accurate readings and reliable data, which are essential for maintaining engine health and performance.

Conclusion

In summary, the 3093901 Hexagon Head Cap Screw is a fundamental component in the securement and stability of various engine system components, contributing to the overall efficiency, performance, and reliability of the engine.