3925186
Flat Head Cap Screw
Cummins®

The Flat Head Cap Screw, specifically Part #3925186 by Cummins, is a critical fastener used in the assembly and maintenance of commercial trucks. Cummins Inc., a renowned manufacturer in the automotive industry, produces this component. This screw is engineered to provide secure fastening in various truck applications, ensuring the integrity and functionality of truck components.

Basic Concepts of Flat Head Cap Screws

A Flat Head Cap Screw is characterized by its flat head, which sits flush with or below the surface of the material it secures. This design allows for a smooth surface finish and reduces the risk of snagging. The screw threads into a pre-drilled hole, creating a strong and secure connection between components. Unlike other cap screws, the flat head design offers a lower profile and is often used in applications requiring a flush or countersunk finish.

Role of the 3925186 Flat Head Cap Screw in Truck Operation

The 3925186 Flat Head Cap Screw is vital in the operation of heavy-duty trucks. It is used in various applications, including fastening engine components, body panels, and other critical truck parts. By providing a secure and reliable connection, this screw ensures that components remain firmly in place under the demanding conditions of commercial truck operation.

Key Features

The 3925186 Flat Head Cap Screw is distinguished by several key features that enhance its performance and durability. It is typically made from high-strength materials, such as alloy steel, which provides excellent resistance to wear and corrosion. The screw features precise threading that ensures a tight and secure fit, while the flat head design allows for a flush or countersunk installation. These features contribute to the screw’s ability to withstand the rigors of heavy-duty truck applications.

Benefits

Using the 3925186 Flat Head Cap Screw offers several benefits. Its design provides improved fastening security, ensuring that components remain firmly attached even under vibration and stress. The material composition and threading of the screw enhance its resistance to corrosion and wear, prolonging its service life. Additionally, the flat head design facilitates ease of installation, allowing for a smooth and professional finish.

Troubleshooting and Maintenance

Common issues with Flat Head Cap Screws may include loosening due to vibration or corrosion. To address these issues, regular inspection and tightening of the screws are recommended. In cases of corrosion, replacement of the affected screws may be necessary to maintain the integrity of the fastening. Proper maintenance, including the use of appropriate lubricants and corrosion inhibitors, can help ensure the longevity and proper function of the screw.

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 is renowned for its commitment to quality and innovation in the manufacturing of automotive components. The company’s reputation is built on a foundation of reliability, performance, and customer satisfaction, making it a trusted name in the industry.

Cummins Flat Head Cap Screw 3925186 Compatibility

The Cummins Flat Head Cap Screw part number 3925186 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 proper function.

B Series Engines

• B3.9, B3.9 G
• B4.5
• B5.6 CM2670 B152B
• B5.9
• B5.9 CM2670 B166C
• B5.9 G
• B5.9 GAS PLUS CM556

These engines, part of the B series, utilize the 3925186 screw in several applications, including securing valve covers, intake manifolds, and other critical engine components.

C Series Engines

• C GAS PLUS CM556
• C8.3 G

The C series engines also incorporate the 3925186 screw, particularly in areas requiring robust fastening solutions to withstand the operational stresses of these engines.

G Series Engines

• G5.9
• G5.9 CM558
• G8.3

The G series engines feature the 3925186 screw in various mounting and securing applications, ensuring that parts remain firmly in place under high-stress conditions.

ISB Series Engines

• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B140
• ISB5.9 CM2880 B149
• ISB5.9G CM2180

The ISB series engines, known for their reliability and performance, also use the 3925186 screw in numerous applications. This includes securing engine blocks, cylinder heads, and other vital components.

6 Series Engines

• 6B5.9
• 6C8.3

The 6 series engines incorporate the 3925186 screw in various mounting and fastening roles, ensuring that all parts are securely held in place.

This comprehensive compatibility of the Cummins Flat Head Cap Screw 3925186 across multiple engine series underscores its importance in maintaining the structural integrity and operational efficiency of Cummins engines.

Role of Part 3925186 Flat Head Cap Screw in Engine Systems

The Part 3925186 Flat Head Cap Screw is integral to the assembly and functionality of various engine components. Its application spans across multiple systems, ensuring secure fastening and reliable operation.

Alternator Systems

In alternator drive and alternator location arrangements, the Flat Head Cap Screw secures the alternator to the engine block or mounting bracket. This ensures stable operation and efficient power generation. It also plays a role in the alternator’s precise positioning, which is essential for optimal belt tension and drive efficiency.

Turbocharger and Auxiliary Systems

For turbochargers, the screw is used in the mounting brackets and plumbing connections. It ensures that the turbocharger is firmly attached, minimizing vibrations and maintaining alignment with the exhaust and intake systems. In auxiliary cooling plumbing, the screw secures components such as radiator mounts and hose connections, contributing to the system’s integrity and cooling efficiency.

Belt and Tensioner Systems

In belt tensioner and belt tensioner kit assemblies, the Flat Head Cap Screw is employed to fasten tensioner pulleys and brackets. This is vital for maintaining the correct belt tension, which is crucial for the operation of driven components like the water pump and alternator. The screw also secures the tensioner belt itself, ensuring it remains in proper alignment.

Fuel and Water Pump Systems

For the fuel pump coupling and water pump drive pulley, the screw ensures that these components are securely attached to their respective drives. This is important for the consistent delivery of fuel and coolant, which are essential for engine performance and longevity. The screw also plays a role in the water pump drive, securing the pulley and ensuring efficient coolant circulation.

Gearshift and Lifting Systems

In gearshift and lifting bracket arrangements, the Flat Head Cap Screw is used to secure components, ensuring they remain in place during operation. This is particularly important in campaign kits and drive systems, where precise component placement is necessary for smooth operation and safety.

Flywheel and Mounting Systems

The screw is also utilized in the housing and mounting of the flywheel, ensuring it is securely attached to the engine. This is essential for the transmission of power from the engine to the drivetrain, contributing to overall vehicle performance.

Conclusion

In summary, the Part 3925186 Flat Head Cap Screw is a versatile fastener that plays a significant role in the secure assembly and reliable operation of various engine systems. Its application across different components underscores its importance in maintaining the integrity and performance of the engine.