3920447
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3920447, is a specialized fastener produced by Cummins. This screw is significant in the realm of commercial truck maintenance due to its robust design and reliable performance. Cummins, a renowned manufacturer in the automotive industry, is known for its high-quality components that enhance the durability and efficiency of commercial vehicles.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flange feature. The hexagonal head allows for secure tightening and loosening using a wrench or socket, while the flange provides additional surface area to distribute the load and prevent the screw from pulling through the material. This design is particularly effective in fastening applications where high torque and resistance to loosening are required ¹.

Role in Truck Operation

The 3920447 Hexagon Flange Head Cap Screw plays a vital role in the operation and maintenance of commercial trucks. It is commonly used in various truck components, including engine mounts, chassis assemblies, and body panels. Its design ensures that critical components remain securely fastened, even under the demanding conditions encountered in commercial trucking. The screw’s ability to withstand high torque and resist loosening contributes to the overall reliability and safety of the vehicle ².

Key Features

The 3920447 Hexagon Flange Head Cap Screw boasts several key features that make it suitable for heavy-duty applications. Its hexagonal head design allows for efficient and precise tightening and loosening, reducing the risk of damage to the screw or surrounding components. The flange feature provides additional stability and load distribution, enhancing the screw’s performance in high-stress environments. Additionally, the cap screw functionality ensures a clean and professional appearance, with the screw head sitting flush with or slightly above the surface it is fastening.

Benefits

The 3920447 Hexagon Flange Head Cap Screw offers numerous benefits that contribute to its popularity in commercial truck maintenance. One of the primary advantages is enhanced fastening security, which is crucial for components that experience significant stress and vibration. The screw’s resistance to loosening ensures that critical connections remain intact, reducing the risk of failure. Additionally, the ease of installation and removal makes it a practical choice for maintenance and repair tasks, saving time and effort for technicians ³.

Troubleshooting and Maintenance

To ensure the longevity and performance of the 3920447 Hexagon Flange Head Cap Screw, regular maintenance and troubleshooting are necessary. Common issues may include corrosion, wear, or damage to the screw or surrounding components. Inspecting the screw for signs of wear or corrosion and replacing it as needed can prevent more significant problems. Additionally, ensuring that the screw is properly torqued during installation will help maintain its effectiveness and reliability.

About Cummins

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 itself as a trusted name in the automotive industry, particularly in diesel engine manufacturing. The company is committed to providing high-quality components that enhance the performance and reliability of commercial vehicles. Cummins’ expertise and dedication to innovation ensure that their products, including the 3920447 Hexagon Flange Head Cap Screw, meet the rigorous demands of the commercial trucking industry.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw (Part 3920447)

The Cummins Hexagon Flange Head Cap Screw, identified by the part number 3920447, is a versatile component designed to fit a wide range of Cummins engines. This screw is integral in securing various parts within the engine assembly, ensuring structural integrity and operational efficiency. Below is a detailed overview of the engines that are compatible with this screw.

Compatible Engines

• 4B3.9
• 6B5.9
• 6C8.3
• B3.9 G
• B4.5
• B5.6 CM2670 B152B
• B5.9 CM2670 B166C
• B5.9 G
• B5.9 GAS PLUS CM556
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• C GAS PLUS CM556
• C8.3 G
• D4.0 CM2620 D103B
• F3.8 CM2350 F128C
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C
• G5.9
• G5.9 CM558
• G8.3
• G8.3 CM558
• GTA8.3 CM558
• ISB (Chrysler)
• ISB CM2150
• ISB CM550

Grouping by Engine Series

• B Series Engines:

  • B3.9 G
  • B4.5
  • B5.6 CM2670 B152B
  • B5.9 CM2670 B166C
  • B5.9 G
  • B5.9 GAS PLUS CM556
  • B6.7 CM2670 B153B
  • B6.7 CM2670 B164C

• C Series Engines:

  • C GAS PLUS CM556
  • C8.3 G

• D Series Engines:

  • D4.0 CM2620 D103B

• F Series Engines:

  • F3.8 CM2350 F128C
  • F4.5 CM2620 F139B
  • F4.5 CM2620 F141C

• G Series Engines:

  • G5.9
  • G5.9 CM558
  • G8.3
  • G8.3 CM558
  • GTA8.3 CM558

• ISB Series Engines:

  • ISB (Chrysler)
  • ISB CM2150
  • ISB CM550

• Other Series Engines:

  • 4B3.9
  • 6B5.9
  • 6C8.3

This compatibility ensures that the Hexagon Flange Head Cap Screw can be used across a broad spectrum of Cummins engines, providing a reliable and standardized solution for securing engine components.

Hexagon Flange Head Cap Screw (Part 3920447) Usage in Engine Systems

The Hexagon Flange Head Cap Screw, identified by part number 3920447, is a versatile fastener utilized in various components within engine systems. Its design allows for secure and reliable connections, ensuring the integrity and functionality of the engine’s components.

Key Applications

1. Aftercooler: The screw is used to secure the aftercooler to its mounting points, ensuring it remains stable during operation and effectively cools the compressed air.
2. Air Intake Manifold: It plays a role in attaching the air intake manifold to the engine, facilitating a secure seal that is essential for optimal airflow into the engine cylinders.
3. Air Transfer Connection: This screw is instrumental in securing air transfer connections, ensuring that air pathways remain intact and function as intended.
4. Charge Air Bypass Plumbing: It is utilized in the assembly of charge air bypass plumbing, helping to maintain the structural integrity of the system and ensuring efficient air flow management.
5. Cylinder Block Plumbing: The screw is employed in the attachment of plumbing components to the cylinder block, critical for the circulation of fluids and gases within the engine.
6. Engine Control Module (ECM): It secures the ECM to its designated location, ensuring that the module remains in place and functions correctly to manage engine operations.
7. Engine Monitoring System: The screw is used in the installation of the engine monitoring system, providing a stable mounting solution for sensors and components.
8. Flywheel Housing Mounting: It is crucial for attaching the flywheel housing to the engine, ensuring that the flywheel operates within the correct parameters.
9. Front Gear Cover: The screw secures the front gear cover, protecting internal components and maintaining the alignment of gears.
10. Fuel Filter: It is used to mount the fuel filter, ensuring that it remains securely in place for efficient fuel filtration.
11. Housing Mounting for Flywheel: This screw is essential for securing the housing that encases the flywheel, contributing to the overall stability of the engine.
12. Kit: In various kits, the screw is used to assemble components, ensuring that all parts are correctly and securely fastened.
13. Fuel Pump Conversion: It is utilized in the installation of fuel pump conversion kits, ensuring that the pump is securely mounted and functions as intended.
14. Lifting Bracket: The screw is employed in the attachment of lifting brackets, providing a secure point for lifting and moving the engine.
15. Oil Block Connection: It secures oil block connections, ensuring that oil pathways remain intact and function correctly.
16. Oil Supply Plumbing: The screw is used in the assembly of oil supply plumbing, helping to maintain the structural integrity of the system.
17. Radiator Mounting: It is utilized in securing the radiator to its mounting points, ensuring that it remains stable and functions effectively to cool the engine.
18. Railcar Installation Package: The screw is used in the installation of railcar packages, ensuring that all components are securely fastened.
19. Raw Water Pump: It secures the raw water pump, ensuring that it remains in place and functions correctly to circulate water through the engine.
20. Shipping Arrangement: The screw is used in securing components during shipping, ensuring that they remain intact and do not shift during transport.
21. Starter Motor Mounting: It is employed in the attachment of the starter motor, ensuring that it remains securely in place for reliable engine starting.
22. Starting Motor Mounting Attachment: The screw secures the starting motor mounting attachment, contributing to the overall stability of the starting system.
23. Thermostat Housing: It is used to mount the thermostat housing, ensuring that it remains securely in place for effective temperature regulation.
24. Water Inlet Connection: The screw secures the water inlet connection, ensuring that water enters the engine system correctly.
25. Water Outlet Connection: It is utilized in securing the water outlet connection, ensuring that water exits the engine system as intended.

Conclusion

The 3920447 Hexagon Flange Head Cap Screw is a critical component in the maintenance and operation of commercial trucks. Its robust design, reliable performance, and wide compatibility with various Cummins engines make it an indispensable part in securing critical components within engine systems. Regular maintenance and proper installation are essential to ensure the longevity and effectiveness of this Cummins part.