3922863
Hexagon Flange Head Cap Screw
Cummins®

Understanding the Cummins 3922863 Hexagon Flange Head Cap Screw

Introduction to Hexagon Flange Head Cap Screws

Hexagon flange head cap screws are specialized fasteners that combine the benefits of a hex head with a flange. These screws feature a hexagonal shape, facilitating straightforward tightening and loosening with a wrench or socket, and a flange that offers a wide bearing surface. This design effectively distributes the load over a larger area, making it ideal for applications requiring significant load-bearing capabilities or high vibration resistance ¹.

Purpose and Role of the Cummins 3922863 Hexagon Flange Head Cap Screw in Engines

The Cummins 3922863 Hexagon Flange Head Cap Screw is meticulously designed for heavy-duty truck engines. Its main function is to securely fasten various engine components, ensuring they remain firmly connected under the demanding conditions typical of commercial truck operations. This screw is commonly used in engine assemblies to secure critical parts such as cylinder heads, manifolds, and other essential components. Its robust construction ensures the engine operates efficiently and reliably, even under extreme loads and high temperatures ².

How the Cummins 3922863 Hexagon Flange Head Cap Screw Works

The Cummins 3922863 Hexagon Flange Head Cap Screw provides a strong and dependable connection between engine parts. When tightened, the screw clamps the components together, evenly distributing the load across the flange. This design prevents the screw from loosening due to vibration or thermal expansion. The hexagonal head allows for precise tightening with a wrench or socket, ensuring the screw is secured to the manufacturer’s specified torque. This precision is vital in engine applications, where incorrect torque can result in engine failure or diminished performance ³.

Troubleshooting and Maintenance

Maintaining the Cummins 3922863 Hexagon Flange Head Cap Screw is crucial for the engine’s longevity and reliability. Regular inspections should be performed to check for signs of wear, corrosion, or loosening. Any loose screws should be re-tightened to the manufacturer’s specified torque. It is also important to use the correct tools when tightening or loosening these screws to prevent damage to the head or thread.

In the event of a failure, identifying the root cause is essential. Common issues include over-tightening, which can strip the threads or break the screw, and under-tightening, which can lead to loosening and potential engine damage. Adhering to the correct torque specifications and using appropriate tools is vital to prevent these problems. If a screw is damaged or worn, it should be replaced to maintain the engine’s integrity ⁴.

Cummins: A Leader in Engine Manufacturing

Cummins is a global leader in engine manufacturing, renowned for its quality and reliability. Cummins engines are utilized in various applications, from heavy-duty trucks to industrial and marine engines. The company’s dedication to innovation and excellence ensures that its products, including the Cummins 3922863 Hexagon Flange Head Cap Screw, meet the highest standards of performance and durability ⁵.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw Part 3922863

The Cummins Hexagon Flange Head Cap Screw part number 3922863 is a versatile component designed to fit various Cummins engines. This part is essential for securing components within the engine assembly, ensuring structural integrity and operational efficiency. Below is a detailed breakdown of the engines that are compatible with this specific screw.

Cummins 15N Series

• 15N CM2380 M104B
• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B140

Cummins 4B and 6B Series

• 4B3.9
• 6B5.9

Cummins 6C Series

• 6C8.3

Cummins B4 Series

• B4.5
• B4.5 CM2350 B129B

Cummins B5 Series

• B5.6 CM2670 B152B
• B5.9 G
• B5.9 GAS PLUS CM556

Cummins B6 Series

• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125

Cummins F Series

• F3.8 CM2350 F120B
• F3.8 CM2620 F137B
• F4.5 CM2620 F139B

Cummins G Series

• G8.3

This screw is engineered to meet the stringent requirements of Cummins engines, providing a reliable fastening solution that ensures components remain securely in place under various operational conditions.

Role of Part 3922863 Hexagon Flange Head Cap Screw in Engine Systems

The 3922863 Hexagon Flange Head Cap Screw is a versatile fastener utilized in various components of engine systems. Its primary function is to securely join and maintain the integrity of different engine parts under operational stress.

Air and Coolant Systems

In the air intake connection and coolant heater starting components, the 3922863 screw ensures a tight seal. This is essential for maintaining the efficiency of air flow into the engine and the effective transfer of heat during the starting process. Similarly, in the engine oil cooler and heat exchanger, it plays a role in securing the connections, ensuring optimal heat transfer and maintaining the structural integrity of these systems.

Lubrication and Filtration

Within the full flow oil filter and lubricating oil filter assemblies, the 3922863 screw is used to secure filter housings. This ensures that the filtration process is not compromised, allowing for clean oil to circulate through the engine, which is vital for reducing wear and maintaining performance.

Electrical and Mechanical Components

At the alternator location and within the alternator support arrangement, the screw is instrumental in securing the alternator to its mounting points. This is important for the stable operation of the alternator, which is responsible for charging the battery and powering the electrical systems of the vehicle.

In the engine control module and intake manifold mounting, the 3922863 screw ensures that these critical components are firmly attached. This is essential for the precise control of engine functions and the efficient management of air intake, respectively.

Turbocharging and Cooling

For the turbocharger and auxiliary cooling system, the screw is used in various mounting and support roles. It helps in securing the turbocharger to the engine, ensuring it operates within the designed parameters. In the cooling system, it aids in maintaining the structural integrity of components like the engine oil primer plumbing and vibration isolator, which are crucial for the engine’s thermal management and smooth operation.

Structural Integrity

Finally, in components like the flywheel housing and long block assembly, the 3922863 screw contributes to the overall structural integrity of the engine. It ensures that these heavy-duty components are securely fastened, which is essential for the engine’s durability and performance under various operating conditions.

Conclusion

Understanding the critical role of fasteners like the Cummins 3922863 Hexagon Flange Head Cap Screw in heavy-duty trucks is essential for engineers, mechanics, and fleet operators. Proper maintenance and knowledge of these components can significantly influence the engine’s reliability and performance. By adhering to best practices for inspection, maintenance, and troubleshooting, professionals can ensure their trucks remain in optimal condition and operate efficiently.