5255716
Captive Washer Cap Screw
Cummins®

The 5255716 Captive Washer Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial truck maintenance and operation. Cummins, a well-established name in the commercial truck industry, produces a range of components that contribute to the efficiency and reliability of truck systems. This Cummins part plays a significant role in ensuring the secure assembly of various truck parts.

Basic Concepts

A Captive Washer Cap Screw is a type of fastener that includes an integrated washer, which is held in place by a protrusion on the screw’s underside. This design ensures that the washer remains attached to the screw, reducing the risk of loss during installation and providing a consistent and reliable clamping force. The 5255716 consists of a threaded shaft, a head for driving, and an integrated washer. It functions by securing two or more components together, distributing the clamping force evenly across the connection point ¹.

Purpose and Role

The 5255716 is utilized in various applications within a truck’s mechanical system. It is commonly employed in the assembly of engine components, chassis parts, and other critical systems where secure and reliable fastening is required. By providing a stable and consistent clamping force, this screw helps maintain the integrity of the assembled parts, ensuring optimal performance and longevity of the truck’s systems ².

Key Features

The 5255716 boasts several key features that enhance its functionality. Its design includes an integrated washer, which simplifies the installation process and ensures that the washer remains in place. The screw is typically made from high-strength materials, such as alloy steel, to provide durability and resistance to wear and corrosion. Additionally, the screw’s threading and head design are optimized for easy installation and removal using standard tools ³.

Benefits

The use of the 5255716 offers several benefits in truck operations. Its integrated washer design streamlines the installation process, reducing the risk of washer loss and ensuring consistent clamping force. The high-strength material composition enhances durability, contributing to the longevity of the fastened components. Furthermore, the reliable performance of this screw supports the overall efficiency and reliability of the truck’s systems ⁴.

Installation Process

Proper installation of the 5255716 involves several steps. Begin by ensuring that the mating surfaces are clean and free of debris. Align the screw with the designated hole and use a suitable tool to drive it in until the head is flush with the surface. It is important to avoid over-tightening, as this can lead to damage or stripping of the threads. Following the manufacturer’s torque specifications ensures a secure yet safe installation.

Troubleshooting and Maintenance

Common issues with the 5255716 may include loosening over time or corrosion in harsh environments. Regular inspection and tightening of the screw can prevent these issues. In cases where corrosion is present, cleaning the affected area and applying a suitable anti-corrosive treatment can help maintain the screw’s performance. Routine maintenance practices, such as checking for proper torque and ensuring the washer remains intact, contribute to the longevity and optimal performance of the screw.

Common Applications

The 5255716 finds application in various truck systems and components. It is commonly used in the assembly of engine parts, chassis components, and other critical systems where secure fastening is required. Its versatility and reliability make it a preferred choice for many truck maintenance and repair tasks.

Safety Considerations

When working with the 5255716, it is important to observe several safety guidelines. Ensure that the work area is clean and free of hazards. Use appropriate personal protective equipment, such as gloves and safety glasses, to protect against injury. Follow the manufacturer’s instructions for installation and torque specifications to avoid damage to the screw or the fastened components. Proper handling and usage of tools are also crucial to ensure a safe working environment.

Cummins Overview

Cummins is a renowned manufacturer in the commercial truck industry, with a history of producing high-quality components and systems. The company’s product range includes engines, powertrains, and aftermarket parts, all designed to enhance the performance, efficiency, and reliability of commercial trucks. Cummins’ reputation for quality and innovation makes its components, such as the 5255716, a trusted choice for truck maintenance and operation.

Captive Washer Cap Screw (Part 5255716) in Cummins Engines

The Captive Washer Cap Screw, part number 5255716, is a critical component in various Cummins engines, ensuring secure fastening and stability. This part is integral to the assembly and maintenance of several engine models, providing a reliable method for securing components together.

B5.6 CM2670 B135B and B152B Engines

In the B5.6 CM2670 B135B and B152B engines, the Captive Washer Cap Screw is used to fasten various parts, ensuring that components remain tightly secured under operational stresses. This is crucial for maintaining the integrity of the engine’s structure and performance.

B6.7 CM2350 B135B and B6.7 CM2670 B153B Engines

For the B6.7 CM2350 B135B and B6.7 CM2670 B153B engines, the Captive Washer Cap Screw is employed in several key areas. It is used to secure components such as the cylinder head, intake manifold, and other critical parts, ensuring that these components remain firmly in place during engine operation.

ISB Engines

The ISB engines, including the ISB (Chrysler), ISB5.9 CM2880 B149, ISB6.7 CM2250, ISB6.7 CM2350 B101, and ISB6.7 G CM2180 B118, utilize the Captive Washer Cap Screw in various applications. This part is essential for fastening components such as the valve cover, oil pan, and other structural elements, ensuring that these parts remain securely attached under the high stresses of engine operation.

ISX CM570 Engine

In the ISX CM570 engine, the Captive Washer Cap Screw is used to secure several critical components, including the turbocharger and exhaust manifold. This ensures that these parts remain firmly in place, contributing to the engine’s overall performance and reliability.

QSB6.7 Engines

The QSB6.7 CM2250 and QSB6.7 CM2350 B105 engines also rely on the Captive Washer Cap Screw for securing various components. This includes parts such as the fuel injection system and other critical assemblies, ensuring that these components remain securely fastened during operation.

The Captive Washer Cap Screw is a vital component in these Cummins engines, providing the necessary security and stability for various parts. Its use across multiple engine models highlights its importance in maintaining the integrity and performance of Cummins engines.

Role of Part 5255716 Captive Washer Cap Screw in Engine Systems

The 5255716 is integral to the secure assembly and operation of various engine components. In the arrangement of the turbocharger, this screw ensures that the turbocharger is firmly attached to its mounting points, allowing it to function efficiently without the risk of detachment or misalignment.

Within the electronic control module kit, the Captive Washer Cap Screw plays a role in securing the module to its designated location. This ensures that the module remains stable and properly aligned, which is essential for accurate readings and reliable performance of the engine control system.

In the context of engine control recirculation, the screw is used to secure components that manage the flow of exhaust gases back into the engine. This helps in maintaining the correct pressure and temperature within the system, contributing to efficient combustion and reduced emissions.

Furthermore, in the exhaust system, the Captive Washer Cap Screw is employed to secure support brackets and accessory mounts. This ensures that all components remain in their intended positions, facilitating smooth operation and longevity of the exhaust system.

Overall, the 5255716 is a fundamental component in maintaining the integrity and performance of various engine systems by providing secure and reliable fastening solutions.

Conclusion

The 5255716 Captive Washer Cap Screw is a critical component in the maintenance and operation of commercial trucks, particularly in Cummins engines. Its design, featuring an integrated washer and high-strength material composition, ensures secure and reliable fastening of various engine components. Proper installation, regular maintenance, and adherence to safety guidelines are essential for maximizing the performance and longevity of this screw. As a trusted component from Cummins, the 5255716 plays a vital role in enhancing the efficiency, reliability, and safety of truck systems.