3919807
Socket Set Screw
Cummins®

The 3919807 Socket Set Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial trucks. Cummins, a well-established name in the commercial truck industry, produces a range of components that contribute to the reliability and efficiency of heavy-duty vehicles. Fasteners, such as the 3919807, play a significant role in the maintenance and operation of these trucks by securing various components and assemblies.

Basic Concepts of Socket Set Screws

A Socket Set Screw is a type of fastener used to secure components within mechanical assemblies. It features a socket head that allows for easy installation and removal using a socket wrench. Socket Set Screws are commonly used in applications where components need to be held firmly in place without the use of nuts. They come in various types, including cup point, cone point, and flat point, each suited for different applications. In the automotive industry, these screws are often used to secure gears, shafts, and other rotating components ¹.

Purpose of the 3919807 Socket Set Screw in Truck Operations

The 3919807 is utilized in various aspects of commercial truck operations. It is employed in engine components to secure parts that require precise alignment and firm holding power. In transmission systems, it helps maintain the integrity of gear assemblies. Additionally, it is used in chassis assemblies to ensure that components remain securely in place under dynamic driving conditions. The screw’s design allows it to withstand the rigors of heavy-duty truck environments, contributing to the overall reliability of the vehicle ².

Key Features of the 3919807 Socket Set Screw

The 3919807 is characterized by several distinctive features that enhance its performance in heavy-duty applications. It is made from high-strength materials to ensure durability under load. The screw features a specific thread type that provides optimal holding power, and its drive type allows for easy installation and removal. Additionally, it may have special coatings or treatments to resist corrosion and wear, further contributing to its longevity in demanding environments ³.

Benefits of Using the 3919807 Socket Set Screw

Using the 3919807 offers several advantages. Its design provides enhanced security for components, reducing the risk of loosening over time. The ease of installation and removal facilitates quicker maintenance procedures. The screw’s resistance to vibration loosening ensures that components remain securely fastened during operation. Moreover, its compatibility with various truck components makes it a versatile choice for different applications, contributing to overall truck performance and longevity.

Troubleshooting and Maintenance Suggestions

Common issues associated with Socket Set Screws include corrosion, stripping, or loosening. Regular inspection of these screws is recommended to identify any signs of wear or damage. Maintenance practices should include cleaning and lubricating the screws to prevent corrosion and ensure smooth operation. If a screw shows signs of damage or loosening, it should be replaced to maintain optimal truck operation. Following manufacturer guidelines for torque specifications and usage can help prevent issues and extend the lifespan of the screws.

Installation Guidelines

Proper installation of the 3919807 is crucial for its effectiveness. Begin by ensuring the mating surfaces are clean and free of debris. Use the appropriate socket wrench to install the screw, applying the recommended torque specification to avoid over-tightening or under-tightening. It is important to follow best practices to prevent damage to the screw or the components being secured. Regular checks after installation can help ensure that the screw remains properly fastened and functions as intended.

Cummins: A Brief Overview

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 a reputation for quality, innovation, and customer satisfaction in the commercial truck industry. The company’s commitment to excellence is reflected in its wide range of products, including the 3919807, which is designed to meet the demanding requirements of heavy-duty truck applications.

Compatibility with Cummins Engines

The 3919807, manufactured by Cummins, is a versatile component designed to fit a range of Cummins engines. This part is integral in securing various engine components, ensuring stability and proper alignment during operation. Below is a detailed look at the engines with which this socket set screw is compatible.

4B3.9 and QSB3.9 30 CM550

The 4B3.9 and QSB3.9 30 CM550 engines both benefit from the 3919807. This part is used in securing certain components within these engines, ensuring that they remain firmly in place under operational stress.

6B5.9 and QSB5.9 30 CM550, QSB5.9 44 CM550

In the 6B5.9, QSB5.9 30 CM550, and QSB5.9 44 CM550 engines, the 3919807 plays a crucial role in maintaining the integrity of the engine’s structure. Its application in these engines ensures that parts such as covers and housings are tightly secured, preventing any potential loosening or misalignment.

6C8.3, G8.3, QSC8.3 CM554, QSC8.3 CM850(CM2850)

The 6C8.3, G8.3, QSC8.3 CM554, and QSC8.3 CM850(CM2850) engines also utilize the 3919807. This part is essential in securing various engine components, ensuring that the engines operate smoothly and efficiently.

B4.5, C GAS PLUS CM556, C8.3 G

The B4.5, C GAS PLUS CM556, and C8.3 G engines incorporate the 3919807 in their design. This screw is used to secure components that are critical to the engine’s functionality, ensuring that all parts remain tightly fastened.

QSC9 CM2250/QSL9 CM2250, QSL8.9 CM2150 L141, QSL9 CM2250, QSL9 CM2350 L102, QSL9 CM554, QSL9 CM850(CM2850)

The 3919807 is also compatible with the QSC9 CM2250/QSL9 CM2250, QSL8.9 CM2150 L141, QSL9 CM2250, QSL9 CM2350 L102, QSL9 CM554, and QSL9 CM850(CM2850) engines. This part is used to secure a variety of components within these engines, ensuring that they remain securely fastened and properly aligned.

Role of the 3919807 Socket Set Screw in Engine Systems

The 3919807 is instrumental in securing various components within engine systems, ensuring stability and proper function.

In the flywheel housing, the Socket Set Screw is utilized to firmly attach the flywheel to the housing, preventing any unwanted movement that could lead to misalignment or damage during operation. This secure attachment is vital for the efficient transfer of power from the engine to the transmission.

Within the broader housing assemblies, the Socket Set Screw plays a role in maintaining the integrity of the housing by securing internal components and ensuring they remain in their designated positions under operational stress.

For the flywheel itself, the Socket Set Screw is often used in conjunction with other fasteners to ensure the flywheel is correctly mounted to the crankshaft. This is essential for the smooth operation of the engine, as any instability in the flywheel can result in vibrations and decreased performance.

In a housing kit, which may include various components designed to encase and protect engine parts, the Socket Set Screw is employed to secure covers, brackets, and other accessories. This ensures that all parts of the kit are held in place, contributing to the overall durability and reliability of the engine system.

Lastly, in a turbocharger kit, the Socket Set Screw is used to secure the turbocharger to the engine and exhaust system. This is important for maintaining the precise alignment required for optimal turbocharger performance, as any misalignment can lead to decreased efficiency and potential damage to the turbocharger or engine.

Overall, the 3919807 is a key component in ensuring the secure attachment and stable operation of various engine system parts, contributing to the overall performance and longevity of the engine.

Conclusion

The 3919807 Socket Set Screw is a critical component in the maintenance and operation of commercial trucks, particularly those equipped with Cummins engines. Its design and features make it suitable for securing a wide range of engine components, ensuring stability, proper alignment, and efficient operation. Regular maintenance and proper installation are essential to maximize the benefits of this part and ensure the longevity and reliability of the vehicle.