3913366
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, Part #3913366 by Cummins, is a specialized fastener designed for heavy-duty truck applications. Cummins, a renowned manufacturer in the automotive and heavy-duty truck industry, produces this screw to meet the demanding requirements of truck assemblies. The screw features a hexagonal head and a flange, which contribute to its functionality and reliability in securing various truck components.

Basic Concepts and Functionality

The Hexagon Flange Head Cap Screw operates on fundamental principles of mechanical fastening. The hexagonal head allows for efficient torque application using standard tools, ensuring secure fastening ¹. The flange provides additional surface area for distribution of clamping force, reducing the risk of damage to the fastened material. In heavy-duty truck assemblies, these screws are used to join critical components, ensuring structural integrity and reliable performance.

Purpose and Role in Truck Operation

This Cummins part plays a significant role in truck operations by securing components that are subject to high stress and vibration. It contributes to the structural integrity of truck assemblies by providing a robust fastening solution. Common uses include securing engine components, transmission parts, and chassis elements. The screw’s design ensures that these critical connections remain intact under demanding conditions.

Key Features

This part boasts several key features that enhance its performance and reliability. The hexagonal head design allows for easy and precise torque application, while the flange provides additional stability and load distribution. The screw is crafted from high-quality materials, ensuring durability and resistance to corrosion. These features collectively contribute to the screw’s ability to perform under the rigorous conditions encountered in heavy-duty truck applications.

Benefits

The Hexagon Flange Head Cap Screw offers several benefits over standard cap screws. Its design provides improved fastening security, making it less prone to loosening due to vibration. The flange enhances the distribution of clamping force, reducing the risk of damage to fastened materials. Additionally, the screw’s ease of installation simplifies maintenance and repair processes, contributing to overall efficiency in truck operations.

Installation and Usage Guidelines

Proper installation of the 3913366 is crucial for optimal performance. Begin by ensuring the mating surfaces are clean and free of debris. Use a torque wrench to apply the recommended torque settings, which can be found in the manufacturer’s guidelines. It is important to follow best practices, such as using the correct tool for the hexagonal head and ensuring the flange is properly seated against the fastened material. These steps help ensure the screw functions as intended and maintains its integrity over time ².

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws include loosening due to vibration and corrosion. Regular inspection for signs of wear or damage is recommended to prevent failures. Maintenance practices should include tightening screws to the specified torque settings and applying appropriate corrosion-resistant coatings. Addressing these issues promptly helps ensure the continued reliability of truck components secured by these screws.

Cummins: Manufacturer Overview

Cummins Inc. is a leading manufacturer in the automotive and heavy-duty truck industry, known for its commitment to quality and innovation. Founded in 1919, Cummins has a long history of producing reliable and high-performance components. Their product range includes engines, powertrains, and aftermarket parts, all designed to meet the rigorous demands of heavy-duty applications. Cummins’ reputation for excellence is built on a foundation of continuous improvement and customer satisfaction.

Regulatory and Safety Considerations

The use of Hexagon Flange Head Cap Screws in heavy-duty trucks is subject to industry standards and regulations. These guidelines ensure that fasteners meet specific performance and safety criteria. When handling and installing these screws, it is important to follow safety protocols to prevent injuries and ensure compliance with industry best practices. This includes using proper personal protective equipment and adhering to torque specifications to avoid over-tightening or under-tightening ³.

Case Studies and Applications

The 3913366 has been successfully employed in various truck applications, demonstrating its versatility and effectiveness. In one example, the screw was used to secure engine mounts in a fleet of long-haul trucks, where it performed reliably under continuous vibration and stress. Another application involved fastening transmission components in off-road vehicles, where the screw’s corrosion resistance and secure clamping force were critical to maintaining operational integrity in harsh environments. These case studies highlight the screw’s ability to meet the diverse needs of heavy-duty truck assemblies.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw Part 3913366

The Cummins part 3913366, a Hexagon Flange Head Cap Screw, is designed to fit a variety of Cummins engines. This part is integral for securing various components within the engine assembly, ensuring stability and integrity during operation. Below is a detailed overview of the engines compatible with this specific part:

Cummins ISB Series

• ISB (Chrysler)
• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104

The ISB series engines, including the ISB (Chrysler) and its various configurations, utilize the Hexagon Flange Head Cap Screw part 3913366 for securing critical engine components. This ensures the engine’s structural integrity and operational efficiency.

Cummins B Series

• B4.5 CM2350 B129B
• B4.5 RGT
• B5.9 G
• B5.9 GAS PLUS CM556

The B series engines, such as the B4.5 CM2350 B129B and B4.5 RGT, incorporate the Hexagon Flange Head Cap Screw part 3913366 to maintain the alignment and fastening of various engine parts. This is crucial for the smooth functioning of these engines.

Cummins 6 Series

• 6B5.9
• 6C8.3
• C8.3 G

The 6 series engines, including the 6B5.9, 6C8.3, and C8.3 G, also rely on the Hexagon Flange Head Cap Screw part 3913366. This part is essential for the assembly and maintenance of these engines, ensuring that all components are securely fastened.

Cummins F Series

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

The F series engines, such as the F3.8 CM2350 F120B and F4.5 CM2620 F139B, utilize the Hexagon Flange Head Cap Screw part 3913366 for securing various engine parts. This ensures the engines’ components are held firmly in place, contributing to their overall performance and longevity.

Cummins D Series

• D4.0 CM2620 D103B

The D series engine, specifically the D4.0 CM2620 D103B, also incorporates the Hexagon Flange Head Cap Screw part 3913366. This part is crucial for maintaining the structural integrity of the engine by securing essential components.

Cummins 15N Series

• 15N CM2380 M104B

The 15N series engine, such as the 15N CM2380 M104B, uses the Hexagon Flange Head Cap Screw part 3913366 to ensure the secure fastening of various engine parts, contributing to the engine’s overall stability and performance.

By ensuring that the Hexagon Flange Head Cap Screw part 3913366 is used in these engines, Cummins maintains the high standards of quality and reliability that their customers expect. This part plays a vital role in the assembly and maintenance of these engines, ensuring they operate efficiently and reliably.

Role of Part 3913366 Hexagon Flange Head Cap Screw in Engine Systems

The part 3913366 Hexagon Flange Head Cap Screw is instrumental in securing and maintaining the integrity of various engine components. Its robust design ensures reliable fastening in high-stress environments, making it suitable for a range of applications within engine systems.

Alternator Drive and Mounting

In the alternator drive system, this screw is used to secure the alternator to its mounting bracket. This ensures that the alternator remains firmly in place, allowing it to efficiently convert mechanical energy into electrical energy without undue vibration or movement.

Auxiliary Pump and Coolant Bypass Kit

For the auxiliary pump and coolant bypass kit, the Hexagon Flange Head Cap Screw plays a role in attaching these components to the engine block or other structural elements. This secure attachment is vital for the proper functioning of the pump and the effective management of coolant flow.

Coolant Heater Starting Aid and Engine Oil Cooler

When integrating the coolant heater starting aid and engine oil cooler, this screw ensures that these components are tightly fastened. This is essential for maintaining the efficiency of the heating process and the optimal performance of the oil cooling system.

Fan Drive and Fluid Doser

In the fan drive mechanism, the screw helps in securing the fan to its housing, ensuring smooth operation and efficient cooling. Similarly, in the fluid doser system, it ensures that the doser unit is securely mounted, allowing for precise fluid delivery.

Fuel Pump Brace Kit and Mounting

For the fuel pump brace kit and fuel pump mounting, the Hexagon Flange Head Cap Screw provides the necessary strength to withstand the vibrations and pressures associated with fuel system operations. This secure mounting is crucial for the reliable performance of the fuel pump.

Injector Plumbing and Mounting Kit

In injector plumbing and the mounting kit, this screw ensures that injectors are firmly attached to the engine block. This secure attachment is important for maintaining the precision of fuel injection and the overall efficiency of the engine.

Oil Cooler Kit and Oil Pan

The oil cooler kit and oil pan assembly benefit from the use of this screw to ensure that all components are tightly secured. This is important for maintaining the structural integrity of the oil cooling system and preventing leaks from the oil pan.

Refrigerant Compressor and Mounting

For the refrigerant compressor and its mounting, the screw ensures that the compressor is securely attached to the engine or chassis. This is essential for the efficient operation of the air conditioning system and to prevent compressor failure due to vibration.

Thermostat and Throttle Control Bracket

The thermostat housing and throttle control bracket are secured using this screw, ensuring that these components remain in place under varying engine conditions. This is important for maintaining consistent engine temperature and precise throttle control.

Turbocharger Arrangement and Location

In turbocharger arrangements, the screw is used to secure the turbocharger to its mounting points. This ensures that the turbocharger operates efficiently without shifting or vibrating excessively.

Vacuum Pump and Bracket Kit

For the vacuum pump and its bracket kit, the screw ensures that the pump is securely mounted. This is important for the reliable operation of the vacuum system, which is often used in brake boosters and other engine components.

Water Inlet Connection and XPI JV System Cummins HD

Finally, in the water inlet connection and the XPI JV System Cummins HD, this screw ensures that all connections are secure and leak-free. This is vital for maintaining the integrity of the cooling system and the high-pressure fuel injection system.

Conclusion

The 3913366 Hexagon Flange Head Cap Screw by Cummins is a critical component in heavy-duty truck and engine applications. Its design, featuring a hexagonal head and flange, ensures secure and reliable fastening under demanding conditions. The screw’s key features, including ease of torque application and enhanced load distribution, contribute to its effectiveness in various truck and engine systems. Proper installation and maintenance are essential to maximize its performance and longevity. Cummins’ commitment to quality and innovation is evident in the design and application of this screw, ensuring it meets the high standards required for heavy-duty applications.