4953512
Captive Washer Cap Screw
Cummins®

The Cummins 4953512 Captive Washer Cap Screw 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 efficiency and reliability of heavy-duty vehicles. Fasteners like this part play a significant role in the assembly and maintenance of these trucks, ensuring that components remain securely attached under various operating conditions.

Basic Concepts of Captive Washer Cap Screws

A Captive Washer Cap Screw is a type of fastener that incorporates a washer into its design. This integration allows for a more streamlined installation process, as the washer does not need to be separately aligned and placed. The washer, typically made from a durable material, helps distribute the load more evenly across the surface it contacts, reducing the risk of damage to the material being fastened. These screws are commonly used in mechanical assemblies where consistent and reliable fastening is required ¹.

Purpose of the 4953512 Captive Washer Cap Screw in Truck Operations

This Cummins part is utilized in various applications within commercial trucks. It plays a role in securing components that are subject to vibration and stress, contributing to the overall integrity and functionality of the truck. By providing a stable and durable connection, this screw helps maintain the alignment and operation of critical truck parts, ensuring safe and efficient performance.

Key Features

The 4953512 Captive Washer Cap Screw features a design that includes an integrated washer, which is typically made from a high-strength material. This design element enhances the screw’s ability to distribute loads effectively and resist corrosion. The screw is also constructed from a material that offers high tensile strength, ensuring it can withstand the rigors of heavy-duty truck operations. Additionally, the screw’s threading is precision-cut to provide a secure fit and easy installation ².

Benefits

Using the 4953512 Captive Washer Cap Screw in truck assemblies offers several advantages. The integrated washer simplifies the installation process, reducing the time and effort required to secure components. This screw also contributes to improved load distribution, which can enhance the durability of the fastened materials. Furthermore, the design of the screw allows for easier removal and replacement, facilitating maintenance and repair procedures.

Installation Process

To install the 4953512 Captive Washer Cap Screw, begin by ensuring the surface is clean and free of debris. Align the screw with the designated hole and use a suitable tool, such as a torque wrench, to tighten it to the manufacturer’s specified torque settings. This ensures optimal performance and longevity. It is important to avoid over-tightening, which can lead to damage or stripping of the screw or the material being fastened.

Troubleshooting and Maintenance

Common issues with Captive Washer Cap Screws may include loosening due to vibration or corrosion. To address these problems, regularly inspect the screws for signs of wear or damage. If a screw appears loose, it should be re-tightened to the proper torque specification. In cases of corrosion, the affected screw may need to be replaced to maintain the integrity of the assembly. Routine maintenance, including cleaning and lubrication, can help prolong the lifespan of the screws and ensure reliable performance ³.

Compatibility and Applications

The 4953512 Captive Washer Cap Screw is designed for use in specific applications within commercial truck assemblies. It is important to verify compatibility with other components or systems to ensure proper function and performance. This screw is typically used in areas where secure and durable fastening is required, such as in the attachment of panels, brackets, or other structural elements.

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 of innovation and a commitment to quality, Cummins has established a strong reputation within the commercial truck industry. The company’s product range includes a variety of components that contribute to the efficiency, reliability, and performance of heavy-duty vehicles. Cummins’ dedication to excellence is reflected in the design and manufacturing of its automotive components, including the 4953512 Captive Washer Cap Screw.

Captive Washer Cap Screw 4953512 in Cummins Engines

The Captive Washer Cap Screw part number 4953512 is a critical component in several Cummins engine models, ensuring secure fastening and stability. This part is integral to the assembly and maintenance of the engines, providing a reliable connection between various parts.

QSK19 Series

The QSK19 series engines, including the QSK19 CM2350 K105, QSK19 CM2350 K114, QSK19 CM2350 K144G, and QSK19 CM500, utilize the 4953512 screw in multiple applications. These engines are known for their robust design and high performance, and the captive washer cap screw plays a vital role in maintaining the integrity of the engine’s structure.

• QSK19 CM2350 K105
• QSK19 CM2350 K114
• QSK19 CM2350 K144G

These variants of the QSK19 series often require the 4953512 screw for securing components such as engine mounts, brackets, and other critical assemblies. The screw’s design ensures that it remains captive, preventing loss during operation and providing a consistent, reliable fastening solution.

QSK19 CM850 MCRS

The QSK19 CM850 MCRS engine incorporates the 4953512 screw in its assembly, particularly in areas where high torque and vibration resistance are essential. This engine model is designed for demanding applications, and the use of the captive washer cap screw helps maintain the engine’s structural integrity under severe conditions.

QSK19G

The QSK19G engine also relies on the 4953512 screw for its assembly. This engine is engineered for high-performance applications, and the screw’s design ensures that it can withstand the stresses and strains associated with such environments.

By integrating the 4953512 captive washer cap screw into these engines, Cummins ensures that each model maintains its operational efficiency and reliability, providing a secure and stable connection for various components.

Role of Part 4953512 Captive Washer Cap Screw in Engine Systems

The 4953512 Captive Washer Cap Screw is instrumental in ensuring the secure assembly and operation of various engine components. In the context of an engine’s arrangement, this screw plays a significant role in maintaining the structural integrity of the assembly by fastening critical parts together. It ensures that components remain in their designated positions, thereby contributing to the overall stability and performance of the engine.

Within the crankcase breather system, the 4953512 Captive Washer Cap Screw is used to secure the breather cover, which is essential for managing pressure within the crankcase. This helps in preventing oil leaks and maintaining a clean environment for the engine’s internal components.

When it comes to engine covers, this screw is often employed to fasten the cover securely in place. This is important for protecting the internal components from external contaminants and ensuring that the engine operates in a controlled environment.

In the cam follower system, the 4953512 Captive Washer Cap Screw is utilized to attach the cam follower to its respective mounting points. This ensures that the cam follower operates smoothly and efficiently, which is vital for the proper functioning of the valve train.

Lastly, in a short block kit, this screw is used in various applications to secure different components, ensuring that the short block is assembled correctly and functions as intended. Its role in these applications underscores the importance of proper fastening in achieving optimal engine performance and durability.

Conclusion

The 4953512 Captive Washer Cap Screw is a vital component in the assembly and maintenance of commercial trucks and Cummins engines. Its design, featuring an integrated washer and high tensile strength, ensures reliable and durable fastening in various applications. Proper installation, maintenance, and understanding of its role in engine systems are essential for ensuring the efficiency and reliability of heavy-duty vehicles.