3420835
Socket Head Cap Screw
Cummins®

The Socket Head Cap Screw, specifically Part #3420835 by Cummins, is a vital component in the realm of commercial trucks. This screw is integral to the assembly and maintenance of various truck components, ensuring the structural integrity and operational efficiency of the vehicle. Cummins, a renowned manufacturer in the automotive industry, produces this part with a focus on durability, reliability, and performance ⁴.

Basic Concepts of Socket Head Cap Screws

Socket Head Cap Screws are a type of fastener characterized by a hexagonal socket in the head, allowing for efficient and secure fastening. They are widely used in mechanical assemblies due to their strength, ease of installation, and resistance to loosening. These screws function by providing a secure connection between components, distributing load evenly, and maintaining structural integrity under various conditions ¹.

Purpose of the 3420835 Socket Head Cap Screw in Truck Operations

This part plays a specific role in the operation and maintenance of commercial trucks. It is designed to fasten critical components, ensuring they remain securely in place under the demanding conditions of truck operations. This screw is particularly important in applications where vibration and dynamic loads are common, as it helps maintain the integrity of the assembly ².

Key Features of the 3420835 Socket Head Cap Screw

The 3420835 Socket Head Cap Screw is distinguished by several key features. Its design includes a hexagonal socket head, which allows for easy installation and removal using a socket wrench. The screw is made from high-quality materials, ensuring durability and resistance to corrosion. Additionally, it may feature unique attributes such as a rolled thread for increased strength or a special coating for enhanced performance in specific environments ³.

Benefits of Using the 3420835 Socket Head Cap Screw

Incorporating this Cummins part in truck assemblies offers several advantages. Its robust construction ensures long-lasting performance, while the ease of installation reduces downtime during maintenance. The screw’s reliability under various conditions makes it a preferred choice for critical applications in commercial trucks ⁴.

Installation and Usage Guidelines

Proper installation of the 3420835 Socket Head Cap Screw involves several steps. First, ensure the mating surfaces are clean and free of debris. Use a socket wrench to drive the screw into the designated hole, applying even pressure to avoid cross-threading. It is important to torque the screw to the manufacturer’s specified levels to ensure a secure fit without overtightening, which could damage the screw or the component ¹.

Troubleshooting Common Issues

Common issues with Socket Head Cap Screws include loosening, corrosion, and damage. Loosening can often be addressed by re-torquing the screw to the specified levels. Corrosion may require cleaning the affected area and applying a protective coating. Damaged screws should be replaced to maintain the integrity of the assembly ².

Maintenance Tips

Regular maintenance of the 3420835 Socket Head Cap Screw is key to ensuring its longevity and optimal performance. This includes periodic inspection for signs of wear, corrosion, or loosening. Cleaning the screw and its surroundings, and applying a protective coating if necessary, can help prevent issues and extend the lifespan of the screw ³.

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 is committed to quality, innovation, and customer satisfaction. The company’s product range includes engines, powertrains, and related components, all designed to meet the demanding needs of various industries, including commercial trucking ⁴.

Socket Head Cap Screw 3420835 in Cummins Engines

The Socket Head Cap Screw 3420835, manufactured by Cummins, is a critical component in various Cummins engine models. This part is integral to the assembly and maintenance of the engines, ensuring secure fastening and stability.

QSV81G and QSV91G Engines

In the QSV81G and QSV91G engines, the Socket Head Cap Screw 3420835 is used to secure several key components. These engines, known for their robust performance, rely on this screw to maintain the integrity of the engine’s structure. The screw’s design ensures that it can withstand the high stresses and vibrations typical of these engines, providing a reliable connection that is essential for optimal performance ⁴.

QSW/QSV82 Engines

For the QSW/QSV82 engines, the Socket Head Cap Screw 3420835 plays a vital role in the assembly of various engine parts. This engine model, which is designed for durability and efficiency, uses the screw to fasten components that are critical to its operation. The screw’s precision and strength are crucial in maintaining the alignment and stability of these parts, contributing to the engine’s overall reliability ⁴.

QSW27 and QSW36 Engines

In the QSW27 and QSW36 engines, the Socket Head Cap Screw 3420835 is employed to secure several critical engine components. These engines, which are known for their compact design and efficiency, depend on this screw to ensure that all parts are firmly attached. The screw’s ability to provide a tight and secure fit is essential for the proper functioning of these engines, helping to prevent any loosening or misalignment that could affect performance ⁴.

QSW73 Engine

The QSW73 engine also utilizes the Socket Head Cap Screw 3420835 to fasten various components. This engine model, which is designed for high performance and reliability, relies on the screw to maintain the structural integrity of its parts. The screw’s design ensures that it can handle the stresses and demands of the engine, providing a secure connection that is essential for the engine’s operation ⁴.

Each of these engines benefits from the use of the Socket Head Cap Screw 3420835, which is a testament to its importance in the Cummins engine lineup. This screw’s precision and reliability make it a crucial component in ensuring the engines’ performance and longevity ⁴.

Role of Part 3420835 Socket Head Cap Screw in Engine Systems

The part 3420835 Socket Head Cap Screw is integral to the assembly and functionality of various engine components. It is utilized in securing and maintaining the integrity of assemblies and sub-assemblies within the engine system.

In the assy, LOM fee and assy, LOM fwe, the Socket Head Cap Screw ensures that the components are tightly fastened, which is essential for the efficient operation of the lubrication and oil management systems.

For the cooler and engine oil cover, this screw plays a role in securing the covers and housings, ensuring that the engine oil remains contained and operates under the correct pressure.

In the fuel pump and engine oil assembly cooler, the Socket Head Cap Screw is used to fasten components that are critical for the delivery and regulation of fuel and oil, respectively.

The filter housing and fuel injector pump assembly cover rely on this screw to maintain a secure fit, which is vital for the filtration process and the precise delivery of fuel to the engine.

For the governor linkage and injector pump side A V16 cover, the screw ensures that these components are correctly aligned and fastened, which is important for the governor’s function in controlling engine speed and the injector pump’s role in fuel delivery.

In the lubricating oil assembly filter and lubricating oil module assembly, the Socket Head Cap Screw is essential for securing the filter elements and modules, ensuring efficient lubrication of engine components.

The oil cooler and oil cooler assembly use this screw to maintain the structural integrity of the cooler, which is necessary for effective heat exchange in the oil.

For the pipe air outlet assembly, the screw ensures that the air outlet is securely attached, which is important for the proper functioning of the air intake system.

In the pump, fuel injection and pump, water, the Socket Head Cap Screw is used to secure components that are essential for the injection of fuel and the circulation of water within the engine.

The shield, heat and shield heat assembly rely on this screw to ensure that the heat shield is correctly positioned and secured, protecting nearby components from excessive heat.

For the thermostat housing assembly and thermostat sub-assembly housing, the screw is used to secure the thermostat in place, which is vital for regulating engine temperature.

Finally, in the water pump and water pump mounting, the Socket Head Cap Screw ensures that the water pump is securely mounted, which is essential for the circulation of coolant throughout the engine.

The water+gear assembly pump also utilizes this screw to secure the gear assembly, ensuring efficient operation of the water pump.

Conclusion

The 3420835 Socket Head Cap Screw by Cummins is a critical component in the assembly and maintenance of commercial truck and engine systems. Its robust design, ease of installation, and reliability under various conditions make it an essential part for ensuring the structural integrity and operational efficiency of vehicles. Regular maintenance and proper installation are key to maximizing the performance and longevity of this screw.