3920346
Studded Flange Cap Screw
Cummins®

Introduction

The Studded Flange Cap Screw, identified by part number 3920346, is a component manufactured by Cummins, a well-established name in the heavy-duty truck industry. This screw is integral to the mechanical systems of heavy-duty trucks, ensuring secure fastening and reliable performance under demanding conditions.

Basic Concepts

A Studded Flange Cap Screw is a type of fastener that includes a threaded stud and a flanged head. The stud is designed to be inserted through holes in components and secured with a nut, while the flange provides additional surface area for torque application. This design allows for efficient load distribution and secure attachment in various truck systems ¹.

Purpose and Role

The Studded Flange Cap Screw plays a significant role in the operation of heavy-duty trucks by providing a robust fastening solution. It is commonly used in applications where high tensile strength and resistance to vibration are required. This includes securing engine components, transmission parts, and other critical assemblies. Its role is to maintain the integrity of these connections, ensuring that parts remain securely fastened during operation ².

Key Features

The Studded Flange Cap Screw features a number of design elements that enhance its performance. It is typically made from high-strength materials such as alloy steel, which provides durability and resistance to wear. The flanged head allows for better torque application, reducing the risk of stripping or loosening. Additionally, the threaded stud ensures a secure fit, even in applications subject to high stress and vibration ³.

Benefits

The use of the Studded Flange Cap Screw offers several benefits in truck operations. Its high-strength material composition contributes to improved durability, allowing it to withstand the rigors of heavy-duty use. The design elements, such as the flanged head and threaded stud, enhance reliability by providing a secure and stable connection. This results in increased efficiency, as components remain securely fastened, reducing the need for frequent maintenance or replacement.

Installation Process

Proper installation of the Studded Flange Cap Screw is crucial for ensuring its effectiveness. The process involves inserting the threaded stud through the designated holes in the components to be fastened. A nut is then applied to the end of the stud and tightened to the appropriate torque specification using a torque wrench. It is important to follow manufacturer guidelines to avoid over-tightening, which can lead to damage, or under-tightening, which may result in loosening over time.

Troubleshooting

Common issues with the Studded Flange Cap Screw may include loosening due to vibration or corrosion, and damage from over-tightening. To address these issues, regular inspections should be conducted to check for signs of wear or corrosion. If loosening is detected, the screw should be re-tightened to the specified torque. In cases of corrosion, the affected components may need to be cleaned or replaced to ensure a secure fit.

Maintenance Tips

To ensure the longevity and optimal performance of the Studded Flange Cap Screw, regular maintenance is recommended. This includes periodic inspections to check for signs of wear, corrosion, or loosening. Cleaning the screw and surrounding components can prevent the buildup of debris that may contribute to corrosion. Additionally, ensuring that the screw is tightened to the correct torque specification during installation and maintenance can help prevent issues related to over-tightening or loosening.

Cummins Overview

Cummins is a renowned manufacturer in the heavy-duty truck industry, known for its high-quality engines and components. With a history spanning several decades, Cummins has established a reputation for innovation, reliability, and performance. The company offers a wide range of products designed to meet the demanding requirements of heavy-duty applications, including engines, powertrain components, and aftermarket parts. Cummins’ commitment to quality and customer satisfaction has made it a trusted name among truck operators and maintenance professionals.

Engine Compatibility with Studded Flange Cap Screw 3920346

The Studded Flange Cap Screw 3920346, manufactured by Cummins, is a crucial component in the assembly and maintenance of various engine models. This part is designed to secure flanges and other components in a manner that ensures durability and reliability under operational conditions. Below is a detailed description of how this part fits with the specified engine models.

Cummins 4B3.9 and 6B5.9 Engines

The Studded Flange Cap Screw 3920346 is compatible with the Cummins 4B3.9 and 6B5.9 engines. These engines are known for their robust design and are often used in heavy-duty applications. The screw is used to fasten various flanges, ensuring that connections remain tight and secure, which is critical for maintaining engine integrity and performance.

Cummins 6C8.3 and B5.9 G Engines

For the Cummins 6C8.3 and B5.9 G engines, the Studded Flange Cap Screw 3920346 plays a vital role in securing flanges that are part of the engine’s cooling and exhaust systems. These engines are designed for high-performance applications, and the screw’s studded design provides the necessary grip and strength to withstand the operational stresses.

Cummins B5.9 GAS PLUS CM556 and ISB CM550 Engines

The B5.9 GAS PLUS CM556 and ISB CM550 engines benefit from the use of the Studded Flange Cap Screw 3920346 in several ways. This screw is used to secure flanges in the fuel injection system and other critical areas. Its design ensures that these connections are leak-proof and can endure the high pressures and temperatures typical of these engines.

Cummins ISC8.3 CM2250 and ISL CM554 Engines

In the Cummins ISC8.3 CM2250 and ISL CM554 engines, the Studded Flange Cap Screw 3920346 is used to fasten flanges in the turbocharger and exhaust systems. These engines are known for their efficiency and reliability, and the screw’s studded feature provides the necessary stability and security for these components.

Cummins ISL9 CM2150 SN and ISL9 CM2250 Engines

For the ISL9 CM2150 SN and ISL9 CM2250 engines, the Studded Flange Cap Screw 3920346 is essential for securing flanges in the engine’s intake and exhaust systems. These engines are designed for heavy-duty applications, and the screw’s design ensures that these connections remain tight and secure, contributing to the engine’s overall performance and longevity.

Cummins QSB5.9 44 CM550 and QSC9 CM2250/QSL9 CM2250 Engines

The QSB5.9 44 CM550 and QSC9 CM2250/QSL9 CM2250 engines also utilize the Studded Flange Cap Screw 3920346 for securing flanges in various systems, including the fuel injection and exhaust systems. The screw’s studded design provides the necessary grip and strength to ensure that these connections remain secure under operational conditions.

Cummins QSL9 CM2250 and QSL9 CM2350 L102 Engines

Finally, the QSL9 CM2250 and QSL9 CM2350 L102 engines use the Studded Flange Cap Screw 3920346 to secure flanges in the engine’s cooling and exhaust systems. These engines are designed for high-performance applications, and the screw’s design ensures that these connections are leak-proof and can withstand the operational stresses.

Role of Part 3920346 Studded Flange Cap Screw in Engine Systems

The 3920346 Studded Flange Cap Screw is integral to the secure assembly and operation of various engine components. Its applications span across multiple systems, ensuring the integrity and efficiency of the engine’s performance.

Turbocharger Systems

In turbocharger arrangements, the 3920346 Studded Flange Cap Screw is employed to fasten the turbocharger to its mounting location on the exhaust manifold. This secure attachment is vital for maintaining the turbocharger’s position and alignment, which directly influences the efficiency of air fuel control and overall engine performance. The screw’s studded flange design provides additional stability against the high temperatures and pressures encountered in turbocharger operations.

Injector Plumbing

Within injector plumbing systems, the 3920346 Studded Flange Cap Screw plays a role in securing injector components. It ensures that the injectors are firmly mounted, preventing leaks and ensuring precise fuel delivery. The screw’s design allows for a tight seal, which is essential for maintaining the integrity of the fuel system and ensuring optimal engine operation.

Heat Shield and Turbocharger Location

At the turbocharger location, especially in high-heat environments, the 3920346 Studded Flange Cap Screw is used in conjunction with heat shields. It secures the shield in place, protecting nearby components from the extreme temperatures generated by the turbocharger. This application is particularly important in maintaining the structural integrity of the engine bay and ensuring the longevity of surrounding components.

Campaign Kit Integration

In campaign kits, which are designed to address specific engine issues or upgrades, the 3920346 Studded Flange Cap Screw is often utilized for its reliability and strength. It ensures that new or modified components are securely fastened, contributing to the effectiveness of the campaign kit in resolving engine-related concerns.

General Mounting and Plumbing Applications

Across various mounting and plumbing applications within the engine, the 3920346 Studded Flange Cap Screw provides a robust solution for fastening components. Its design allows for secure attachment in environments where vibration and movement are common, ensuring that components remain in place and function as intended.

Conclusion

The 3920346 Studded Flange Cap Screw’s versatility and reliability make it a valuable component in the assembly and maintenance of engine systems, contributing to the overall performance and durability of the engine.