3093734
Hexagon Head Cap Screw
Cummins®

The 3093734 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 automotive industry, is known for its commitment to quality and innovation. This particular screw is integral to the maintenance and repair processes of commercial trucks, ensuring that various components are securely fastened, thereby contributing to the vehicle’s overall performance and safety ¹.

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. In the automotive industry, these screws are commonly used to secure various components due to their robust design and reliable performance. Mechanically, the hexagonal shape of the head provides a firm grip, reducing the risk of cam-out during installation or removal. This design ensures that the screw can withstand significant torque without stripping, making it suitable for high-stress applications ².

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation of commercial trucks. It is designed to secure critical components within the truck’s engine and chassis, ensuring that parts remain firmly in place under various driving conditions. By maintaining the integrity of these connections, the screw contributes to the overall functionality and safety of the vehicle. Its use in high-stress areas underscores its importance in ensuring that the truck operates smoothly and reliably ³.

Key Features

The 3093734 boasts several key features that set it apart from other fasteners. It is composed of high-quality materials, typically a grade of steel that offers excellent strength and durability. The screw’s design includes a fully threaded shank, which allows for secure fastening over a longer distance. Additionally, the hexagonal head is meticulously crafted to provide a precise fit with standard wrenches and sockets, facilitating easy installation and removal. These features combine to make the screw a reliable choice for commercial truck applications.

Benefits

Using the 3093734 offers several benefits. Its durable material composition ensures long-lasting performance, even in demanding environments. The screw’s resistance to wear and tear reduces the need for frequent replacements, saving time and resources. Furthermore, the design of the hexagonal head allows for straightforward installation and removal, enhancing efficiency during maintenance procedures. These attributes make the screw a valuable component in the upkeep of commercial trucks.

Installation and Usage

Proper installation of the 3093734 is vital to ensure optimal performance. It is recommended to use the appropriate torque settings specified by the manufacturer to achieve the correct tension without overtightening. This can typically be found in the vehicle’s maintenance manual or on the packaging of the screw. Following the recommended procedures, such as cleaning the threading area and using a torque wrench, will help maintain the screw’s integrity and the overall functionality of the truck.

Troubleshooting and Maintenance

Common issues with the 3093734 may include loosening due to vibration or corrosion from exposure to the elements. Regular maintenance practices, such as periodic checks for tightness and applying an anti-seize compound, can help prevent these problems. If an issue arises, a step-by-step troubleshooting guide should be followed to identify the cause. This may involve inspecting the screw and surrounding components for signs of wear or damage and taking corrective action as needed.

Cummins: Manufacturer Overview

Cummins is a renowned manufacturer with a rich history in the automotive industry. The company has built a reputation for producing high-quality, innovative components that meet the rigorous demands of commercial vehicles. Cummins’ commitment to excellence is evident in their extensive range of products, which are designed to enhance the performance and reliability of trucks and other heavy-duty equipment. Their focus on quality and continuous improvement ensures that their components, like the 3093734, are trusted by professionals in the field.

Hexagon Head Cap Screw 3093734 in Cummins Engines

The Cummins part number 3093734, a Hexagon Head Cap Screw, is a critical component in several Cummins engine models. This screw is integral to the assembly and maintenance of the engines, ensuring secure fastening of various parts. Here’s how it fits into the specified engine models:

QSC8.3 CM850 (CM2850) and QSK19 CM2350 K105

In the QSC8.3 CM850 (CM2850) and QSK19 CM2350 K105 engines, the 3093734 is used in several key areas. It is often employed in the engine block assembly, securing the cylinder head to the engine block. This ensures that the engine operates under optimal conditions by maintaining the integrity of the combustion chamber. Additionally, it is used in the mounting of various engine accessories, such as the alternator and air intake systems, ensuring these components remain firmly in place during operation.

QST30 CM2350 T101 and QST30 CM552

For the QST30 CM2350 T101 and QST30 CM552 engines, the 3093734 plays a similar role. It is utilized in the assembly of the engine block and the mounting of the cylinder head. This screw is also crucial in securing the engine’s ancillary components, such as the exhaust manifold and fuel injection system. The precision and strength of the screw are vital for maintaining the structural integrity of these engines, ensuring they perform reliably under various operating conditions.

The use of the 3093734 across these engines highlights its importance in the overall assembly and maintenance of Cummins engines. Its role in securing critical components ensures that the engines function efficiently and reliably.

Component Usage

The 3093734 is instrumental in securing various components within engine systems, ensuring stability and proper function.

• Camshaft and Gear: This screw plays a significant role in fastening the camshaft to its housing, allowing for precise timing and operation of the engine’s valves.
• Electronic Control Module (ECM) Bracket: The screw is used to mount the ECM securely to the engine or chassis, ensuring that the sensitive electronic components remain stable and protected from vibrations.
• Harness and ECM Wiring: The screw helps in attaching wiring harnesses to the chassis or other structural components, maintaining the integrity of the electrical connections and preventing potential shorts or disconnections.
• Housing Components: For components such as those for the flywheel or injectors, the screw ensures that these housings are tightly secured, which is essential for the proper operation and sealing of these parts.
• Injector and Injector Fuel Supply Tube: The screw is often used to secure the injector to the engine block or cylinder head, as well as to attach the fuel supply tube, ensuring a leak-free connection and consistent fuel delivery.
• Module and Engine Control Parts: This screw is used in various mounting applications where stability and precise positioning are required for optimal performance.
• Performance and Performance Parts: The screw is commonly employed to secure aftermarket components, such as turbochargers, ensuring that these parts are firmly attached and can withstand the increased stresses of high-performance applications.
• Plumbing Applications: For attaching a vent tube, the screw provides a reliable means of securing tubing to the engine or chassis, preventing leaks and ensuring proper venting of gases or fluids.
• Wiring Harness: The screw is utilized to secure the harness in place, protecting the wires from abrasion and ensuring that the electrical connections remain intact under the dynamic conditions of engine operation.

Conclusion

The 3093734 Hexagon Head Cap Screw is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its robust design, durable material, and precise fit make it an essential fastener for securing various critical components. Proper installation and regular maintenance ensure the screw’s longevity and the vehicle’s overall performance and safety.