5255271
Shoulder Cap Screw
Cummins®

Introduction

The Shoulder Cap Screw 5255271, manufactured by Cummins, is a specialized fastener designed for use in commercial trucks. Cummins is renowned for its high-quality components that enhance the performance and reliability of heavy-duty vehicles. This screw is integral to various truck assemblies, ensuring secure fastening and contributing to the overall durability and efficiency of the vehicle.

Basic Concepts of Shoulder Cap Screws

A shoulder cap screw is a type of fastener that features a cylindrical shoulder under the head, which provides additional support and prevents the screw from sinking into the material it is securing. These screws are commonly used in mechanical assemblies where precise alignment and secure fastening are required. The shoulder design allows for a more even distribution of force, enhancing the stability of the joined components ¹.

Purpose of the 5255271 Shoulder Cap Screw in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of commercial trucks. It is utilized in areas where secure and reliable fastening is necessary, such as engine components, transmission systems, and chassis assemblies. Its design ensures that critical parts remain firmly in place, even under the demanding conditions encountered in heavy-duty truck operations. This contributes to the longevity and performance of the truck by maintaining the integrity of the assembled components ².

Key Features

The 5255271 Shoulder Cap Screw is characterized by several key features that enhance its performance and durability. It is made from high-strength materials, ensuring it can withstand significant stress and vibration. The screw features a specific thread type that provides optimal grip and resistance to loosening. Its head design is engineered for easy installation and removal, while the shoulder under the head offers additional support and stability. These attributes make it a reliable choice for critical fastening applications in commercial trucks.

Benefits of Using the 5255271 Shoulder Cap Screw

Using this part offers several advantages. The design of the screw provides improved fastening security, ensuring that components remain securely joined even in dynamic operating conditions. Its resistance to vibration reduces the likelihood of loosening over time, which is particularly important in the harsh environment of commercial truck operations. Additionally, the ease of installation and removal simplifies maintenance procedures, allowing for quick and efficient servicing.

Installation Guidelines

Proper installation of the 5255271 Shoulder Cap Screw is vital to ensure optimal performance and longevity. Begin by ensuring the mating surfaces are clean and free of debris. Use the appropriate tool to insert the screw, applying steady and even pressure. Torque specifications should be followed precisely to avoid over-tightening, which can damage the screw or the components being fastened. It is also important to periodically check the tightness of the screw to ensure it remains secure throughout the truck’s operation.

Troubleshooting and Maintenance

Common issues with shoulder cap screws include loosening due to vibration and corrosion. Regular inspection and maintenance can help identify and address these problems early. If a screw shows signs of loosening, it should be re-tightened to the specified torque. Corrosion can be prevented by applying a suitable anti-corrosive coating during installation. Following these maintenance practices will help prolong the life of the 5255271 Shoulder Cap Screw and ensure continued reliable operation.

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 has built a reputation for quality, innovation, and reliability in the commercial truck industry. The company’s commitment to excellence is evident in its wide range of products, which are designed to meet the demanding requirements of heavy-duty applications. Cummins continues to lead the industry with advanced technologies and a focus on customer satisfaction.

Compatibility with Cummins Engines

The Shoulder Cap Screw part number 5255271, manufactured by Cummins, is a critical component in various engine assemblies. This screw is designed to provide secure fastening in high-stress environments, ensuring the integrity and performance of the engine systems it is used in.

Compatibility with F2.8 Series Engines

The Shoulder Cap Screw part 5255271 is compatible with several F2.8 series engines, including:

• F2.8 CM2620 F135B
• ISF2.8 CM2220 F117
• ISF2.8 CM2220 F129
• QSF2.8 CM2880 F104
• QSF2.8 CM2880 F105
• QSF2.8 CM2880 F108
• QSF2.8 CM2880 F114

These engines benefit from the robust fastening provided by the 5255271 screw, ensuring that critical components remain securely in place under operational stresses.

Compatibility with K95 Series Engines

The Shoulder Cap Screw part 5255271 is also compatible with the following K95 series engines:

• QSK95 CM2350 K111
• QSK95 CM2350 K113

In these engines, the screw plays a vital role in maintaining the structural integrity of the engine’s components, ensuring reliable performance and longevity.

Compatibility with R2.8 Series Engines

Lastly, the Shoulder Cap Screw part 5255271 is suitable for the following R2.8 series engine:

• R2.8 CM2220 R101B

This engine relies on the secure fastening capabilities of the 5255271 screw to keep its components aligned and secure, contributing to the overall efficiency and durability of the engine.

Role of Part 5255271 Shoulder Cap Screw in Engine Systems

In the intricate assembly of engine systems, the part 5255271 Shoulder Cap Screw plays a significant role in ensuring the secure and efficient operation of various components.

Drive Mechanism

Within the drive mechanism, the Shoulder Cap Screw is instrumental in fastening components that transmit power from the engine to other parts of the vehicle. It ensures that the drive components remain firmly in place, allowing for smooth and consistent power transmission.

Camshaft Assembly

In the camshaft assembly, the Shoulder Cap Screw is used to secure the camshaft to its housing. This is essential for maintaining the precise timing and operation of the valve train, which is vital for the engine’s performance and efficiency.

Housing Components

When it comes to housing components, the Shoulder Cap Screw provides the necessary tension and stability. It helps in keeping the housing intact, which is important for protecting internal engine parts and maintaining the structural integrity of the engine block.

Rear Gear Integration

For the rear gear, the Shoulder Cap Screw is employed to secure the gear to its mounting points. This ensures that the gear operates smoothly and without excessive wear, contributing to the overall durability and reliability of the engine system.

Module Attachments

In various engine modules, the Shoulder Cap Screw is used to attach sensors, control units, and other electronic components. This secure attachment is essential for the proper functioning of these modules, ensuring accurate data collection and control signals.

Engine Control Systems

Finally, in engine control systems, the Shoulder Cap Screw plays a role in securing components that are critical for monitoring and regulating engine performance. This includes fastening sensors, actuators, and other control elements, ensuring they operate within specified parameters for optimal engine function.

Conclusion

The 5255271 Shoulder Cap Screw by Cummins is a vital component in the assembly and maintenance of commercial trucks and their engines. Its robust design, compatibility with various Cummins engines, and critical role in securing engine components make it an indispensable part for ensuring the reliability and performance of heavy-duty vehicles.