3097059
Captive Washer Cap Screw
Cummins®

The Captive Washer Cap Screw is a component utilized in various mechanical assemblies, including heavy-duty trucks. Its role in maintaining the integrity and functionality of truck components is significant. Manufactured by Cummins, a reputable name in the automotive industry, the Captive Washer Cap Screw with part number 3097059 is specifically designed for applications in commercial trucks. This part contributes to the secure fastening of components, ensuring reliable operation and ease of maintenance.

Basic Concepts of Captive Washer Cap Screw

A Captive Washer Cap Screw is a type of fastener that includes an integrated washer. This design allows for efficient sealing and reduces the risk of the screw loosening over time. The screw typically consists of a threaded shaft, a head for applying torque, and an integrated washer that provides a sealing surface. The washer’s role is to distribute the load and prevent leakage, while the threaded shaft secures the components together ¹.

Purpose of the 3097059 Captive Washer Cap Screw

The 3097059 Captive Washer Cap Screw is employed in heavy-duty trucks to fasten components that require a secure and sealed connection. It plays a role in maintaining the structural integrity of truck assemblies by providing a reliable fastening solution. This screw is particularly useful in applications where vibration and dynamic loads are present, as it helps to maintain the tightness of the connection and prevent loosening ².

Key Features

The 3097059 Captive Washer Cap Screw is characterized by several features that enhance its performance. It is made from high-strength materials to withstand the rigors of heavy-duty truck applications. The design includes a captive washer that remains attached to the screw, simplifying the installation process and ensuring consistent sealing. Additionally, the screw’s threading is precision-cut to provide a strong grip and resist loosening ³.

Benefits

Using the 3097059 Captive Washer Cap Screw offers several advantages in truck maintenance. The integrated washer improves sealing, which is crucial for applications where fluid containment is necessary. The design also enhances security against loosening, reducing the need for frequent re-tightening. Furthermore, the captive washer simplifies the assembly and disassembly processes, saving time during maintenance procedures.

Installation Process

Installing the 3097059 Captive Washer Cap Screw requires attention to detail to ensure proper function. The screw should be aligned with the mating threads, and a torque wrench should be used to achieve the manufacturer’s recommended torque settings. This ensures that the screw is tightened to the correct specification, providing a secure connection without over-tightening, which could damage the threads or the components being fastened.

Troubleshooting and Maintenance

Common issues with Captive Washer Cap Screws include loosening due to vibration and corrosion from exposure to the elements. Regular inspection for signs of wear or damage is recommended to maintain the screw’s performance. If loosening is detected, re-tightening to the specified torque is necessary. In cases of severe corrosion, replacement of the screw may be required to ensure continued reliability.

Cummins: Manufacturer Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a strong reputation in the automotive industry, Cummins is known for its commitment to quality and innovation. The company’s products are designed to meet the demanding requirements of heavy-duty applications, ensuring durability and performance in various operating conditions.

Captive Washer Cap Screw in Cummins Engines

The Captive Washer Cap Screw, part number 3097059, is a critical component in various Cummins engines, including the N14 Celect Plus. This part is integral to the engine’s assembly and functionality, ensuring secure fastening and stability of various engine components.

N14 Celect Plus

In the N14 Celect Plus engine, the Captive Washer Cap Screw is used in several key areas. It plays a vital role in securing the engine’s cylinder heads to the engine block, ensuring a tight seal and preventing leaks. Additionally, it is used in the fastening of various engine accessories and components, such as the turbocharger, exhaust manifold, and intake manifold. The screw’s design, which includes a captive washer, provides added security and prevents the washer from being lost during assembly or maintenance.

The use of the Captive Washer Cap Screw in the N14 Celect Plus engine highlights its importance in maintaining the engine’s structural integrity and operational efficiency. Its design ensures that components remain securely fastened under the high stresses and temperatures encountered during engine operation.

Role of Part 3097059 Captive Washer Cap Screw in Engine Systems

The 3097059 Captive Washer Cap Screw is an essential fastening component utilized in various engine systems to ensure secure and reliable connections.

Cover Assembly

In the cover assembly of an engine, the 3097059 Captive Washer Cap Screw is employed to fasten the cover to the engine block or other structural components. This secure attachment is vital for maintaining the integrity of the cover, which protects internal engine components from contaminants and ensures that lubrication systems function correctly. The captive washer integrated into the screw design prevents loss of the washer during installation and provides consistent pressure distribution, enhancing the seal between the cover and the engine block.

Valve Mechanism

Within the valve mechanism, the 3097059 Captive Washer Cap Screw plays a significant role in securing valve covers and other valve-related components. It ensures that valve covers remain tightly sealed, preventing oil leaks and maintaining proper valve operation. The screw’s design allows for easy installation and removal, facilitating maintenance and repair processes without compromising the seal integrity.

Rocker Lever Cover

For the rocker lever cover, the 3097059 Captive Washer Cap Screw is used to fasten the cover to the engine’s cylinder head. This secure attachment is important for protecting the rocker arms and other valve train components from debris and ensuring that the cover remains in place under varying engine operating conditions. The captive washer feature of the screw helps in achieving a uniform clamping force, which is essential for the cover’s durability and the overall performance of the valve train system.

Conclusion

The 3097059 Captive Washer Cap Screw is a vital component in the maintenance and operation of heavy-duty trucks and Cummins engines. Its design, which includes a captive washer, ensures secure fastening, efficient sealing, and resistance to loosening. The screw’s high-strength materials and precision-cut threading make it suitable for the demanding conditions of heavy-duty applications. Regular maintenance and proper installation are key to ensuring the longevity and reliability of this Cummins part.