4974047
Captive Washer Cap Screw
Cummins®

The 4974047 Captive Washer Cap Screw by Cummins is a specialized fastener designed for use in heavy-duty truck maintenance and operation. This component is integral to ensuring the secure attachment of various parts within the truck’s engine and other critical systems. Its design and functionality contribute to the overall reliability and performance of heavy-duty trucks, making it a vital component in the automotive industry.

Basic Concepts of Captive Washer Cap Screws

A Captive Washer Cap Screw is a type of fastener that includes an integrated washer, which is held in place by a slot or groove in the screw’s shank. This design ensures that the washer remains attached to the screw during installation, reducing the risk of loss and simplifying the fastening process. In automotive and industrial settings, captive washer cap screws are commonly used to secure components that require a consistent and reliable connection, such as engine parts, chassis components, and various mechanical assemblies.

Purpose of the 4974047 Captive Washer Cap Screw

The 4974047 Captive Washer Cap Screw plays a specific role in the operation of heavy-duty trucks. It is designed to provide a secure and durable connection between components, ensuring that parts remain firmly in place under the demanding conditions encountered in heavy-duty truck applications. This screw is utilized in various truck components, including engine mounts, transmission housings, and chassis assemblies, where reliable fastening is crucial for performance and safety.

Key Features

The 4974047 Captive Washer Cap Screw features a robust design that enhances its performance and durability. It is constructed from high-quality materials, typically a grade of steel that offers excellent strength and corrosion resistance. The integrated washer is designed to distribute pressure evenly across the fastening area, reducing the risk of damage to the connected components. Additionally, the screw’s threading and overall design are optimized for easy installation and reliable performance in challenging environments.

Benefits

Using the 4974047 Captive Washer Cap Screw offers several benefits. Its design contributes to improved reliability by ensuring a secure connection between components. The integrated washer simplifies the installation process, reducing the likelihood of errors and enhancing efficiency. Furthermore, the screw’s durable construction and corrosion-resistant properties enable it to perform effectively in demanding conditions, providing long-lasting performance and reducing the need for frequent replacements.

Installation Process

Proper installation of the 4974047 Captive Washer Cap Screw involves several steps to ensure a secure and reliable connection. Begin by selecting the appropriate screw size and ensuring that the mating surfaces are clean and free of debris. Align the screw with the designated hole and use a torque wrench to tighten it to the manufacturer’s specified torque settings. It is important to avoid over-tightening, which can damage the screw or the connected components. Additionally, periodically check the fastening to ensure it remains secure over time.

Troubleshooting and Maintenance

Common issues related to the 4974047 Captive Washer Cap Screw may include signs of wear, such as corrosion or damage to the screw or washer. Regular inspection and maintenance can help identify these issues early, allowing for timely replacement or repair. To ensure longevity and optimal performance, it is advisable to follow the manufacturer’s guidelines for torque settings and to use appropriate lubricants during installation, if recommended. Additionally, protecting the screw from exposure to harsh chemicals and environments can help maintain its integrity.

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 renowned for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range includes engines and components for heavy-duty trucks, among other applications. Cummins’ reputation in the automotive industry is built on its dedication to producing reliable, high-performance products that meet the needs of its customers.

Captive Washer Cap Screw (Part 4974047) in Cummins Engines

The Captive Washer Cap Screw, identified as part number 4974047, is a critical component in several Cummins engine models. This part is integral to the assembly and functionality of the engines, ensuring secure fastening and stability.

ISM CM570

In the ISM CM570 engine, the Captive Washer Cap Screw is utilized in various applications where secure fastening is essential. This part is often found in the engine’s mounting system, ensuring that components remain firmly attached under operational stresses.

ISM11 CM876 SN

Similarly, in the ISM11 CM876 SN engine, the Captive Washer Cap Screw plays a vital role in maintaining the integrity of the engine’s structure. It is commonly used in the engine’s internal and external mounting systems, providing the necessary stability and security to withstand the engine’s operational demands.

Grouping of Engines

Both the ISM CM570 and ISM11 CM876 SN engines share a commonality in their use of the Captive Washer Cap Screw. This part is essential in ensuring that various engine components are securely fastened, contributing to the overall reliability and performance of the engines. The use of this screw in these engines highlights its importance in maintaining the structural integrity and operational efficiency of Cummins engines.

Part 4974047 Captive Washer Cap Screw Component Usage

The 4974047 Captive Washer Cap Screw is integral to the secure assembly and operation of various engine components, particularly within the arrangement and turbocharger systems.

In the arrangement of engine components, the Captive Washer Cap Screw ensures that parts are held firmly in place, preventing any unwanted movement or misalignment during engine operation. This is especially important for components that experience high levels of vibration or stress. The screw’s design, which includes a captive washer, enhances the stability and reliability of the connection by distributing the load more evenly and reducing the risk of loosening over time.

Within the turbocharger system, the Captive Washer Cap Screw plays a significant role in maintaining the integrity of the turbocharger’s mounting and internal components. Turbochargers operate under extreme conditions, with high temperatures and pressures. The screw ensures that the turbocharger housing, compressor, and turbine components remain securely fastened, which is essential for optimal performance and durability. The captive washer feature further aids in sealing any potential gaps, helping to maintain the efficiency of the turbocharger by preventing leaks and ensuring a tight fit.

Overall, the use of the Captive Washer Cap Screw in these systems underscores its importance in enhancing the reliability and performance of engine components under demanding conditions.

Conclusion

The 4974047 Captive Washer Cap Screw by Cummins is a critical component in the maintenance and operation of heavy-duty trucks. Its robust design, featuring an integrated washer, ensures secure and reliable fastening of engine and chassis components. The screw’s durable construction and corrosion-resistant properties make it suitable for demanding conditions, contributing to the overall reliability and performance of heavy-duty trucks. Proper installation and maintenance are essential to ensure the longevity and effectiveness of this Cummins part.