4083245
Captive Washer Cap Screw
Cummins®

Introduction

The Captive Washer Cap Screw 4083245 is a specialized fastener produced by Cummins, a renowned manufacturer in the automotive and heavy-duty truck industries. This screw is designed for use in commercial trucks, where it plays a significant role in securing various components and ensuring the structural integrity of the vehicle.

Basic Concepts

A Captive Washer Cap Screw is a type of fastener that includes an integrated washer. This design allows for efficient installation and reduces the risk of washer loss during assembly. The screw functions by threading into a pre-tapped hole, where it exerts clamping force to hold components together. Its general use in mechanical assemblies includes applications where consistent and reliable fastening is required ¹.

Purpose of the 4083245 Captive Washer Cap Screw

The 4083245 Captive Washer Cap Screw serves a vital function in the operation of a truck. It is used to secure components such as engine parts, chassis elements, and other critical areas. By providing a stable and consistent clamping force, it helps maintain the structural integrity of the truck, ensuring that components remain firmly in place under various operating conditions ².

Key Features

The 4083245 Captive Washer Cap Screw boasts several primary features that enhance its performance. 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. Additionally, it may feature a corrosion-resistant coating to extend its service life in harsh environments ³.

Benefits

Using the 4083245 Captive Washer Cap Screw offers several advantages. Its integrated washer design streamlines the installation process, reducing the time and effort required for assembly. The high-strength material composition ensures improved reliability and durability, making it suitable for demanding applications. Furthermore, the corrosion-resistant coating enhances its performance in various environmental conditions, contributing to the overall longevity of the fastener.

Installation Process

Proper installation of the 4083245 Captive Washer Cap Screw involves several steps. Begin by ensuring that the mating surface is clean and free of debris. Use a torque wrench to tighten the screw to the manufacturer’s specified torque settings to achieve the correct clamping force. It is important to avoid over-tightening, which can lead to damage, and under-tightening, which can result in insufficient clamping force. Following these best practices ensures a secure and reliable installation.

Troubleshooting and Maintenance

Common issues with the 4083245 Captive Washer Cap Screw include loosening due to vibration or corrosion. Regular inspection and maintenance can help identify these problems early. If loosening is detected, re-tighten the screw to the specified torque settings. In cases of corrosion, cleaning the affected area and applying a corrosion-resistant coating can help restore performance. Routine maintenance practices, such as periodic checks and re-torquing, ensure the longevity and performance of the fastener.

Comparison with Standard Cap Screws

The 4083245 Captive Washer Cap Screw differs from standard cap screws in several ways. Its integrated washer design simplifies installation and reduces the risk of washer loss. Additionally, the high-strength material and corrosion-resistant coating provide enhanced durability and reliability compared to standard cap screws. These features make the 4083245 screw particularly suited for applications where consistent performance and longevity are required.

Application in Commercial Trucks

The 4083245 Captive Washer Cap Screw is used in various critical areas of commercial trucks. Common applications include securing engine components, such as cylinder heads and valve covers, and chassis parts, such as frame brackets and mounting points. Its reliable performance and durability make it an ideal choice for these demanding applications.

Manufacturer - Cummins

Cummins is a well-established manufacturer with a strong reputation in the automotive and heavy-duty truck industries. The company has a history of innovation and commitment to quality, producing a wide range of components that meet the rigorous demands of commercial vehicles. Cummins’ dedication to excellence ensures that their products, including the 4083245 Captive Washer Cap Screw, deliver reliable performance and durability.

Captive Washer Cap Screw 4083245 in Cummins Engines

The Captive Washer Cap Screw 4083245 is a critical component in several Cummins engine models, ensuring secure fastening and stability of various engine parts. This part is designed to maintain the integrity of engine assemblies by providing a reliable means of attachment.

ISM Series Engines

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

In the ISM series engines, the Captive Washer Cap Screw 4083245 is used in several applications where secure fastening is essential. It is often employed in the assembly of engine blocks, cylinder heads, and other critical components, ensuring that parts remain tightly secured under operational stresses.

ISX Series Engines

• ISX CM570
• ISX CM870
• ISX CM871

For the ISX series engines, the Captive Washer Cap Screw 4083245 plays a vital role in maintaining the structural integrity of the engine. It is utilized in the assembly of various engine components, including but not limited to, the engine block, cylinder heads, and other critical assemblies. This screw ensures that parts remain securely fastened, even under high operational loads.

ISZ Series Engines

• ISZ13 CM2150 Z105

In the ISZ13 CM2150 Z105 engine, the Captive Washer Cap Screw 4083245 is used in several key areas where secure fastening is crucial. It is employed in the assembly of the engine block, cylinder heads, and other critical components, ensuring that these parts remain tightly secured under operational stresses.

M11 Series Engines

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

For the M11 series engines, the Captive Washer Cap Screw 4083245 is used in various applications where secure fastening is essential. It is often employed in the assembly of engine blocks, cylinder heads, and other critical components, ensuring that parts remain tightly secured under operational stresses.

QSM11 Series Engines

• QSM11 CM570
• QSM11 CM876

In the QSM11 series engines, the Captive Washer Cap Screw 4083245 is used in several key areas where secure fastening is crucial. It is employed in the assembly of the engine block, cylinder heads, and other critical components, ensuring that these parts remain tightly secured under operational stresses.

Role of Part 4083245 Captive Washer Cap Screw in Engine Systems

The part 4083245 Captive Washer Cap Screw is integral to the secure assembly and operation of various engine components. In the compressor, this screw ensures the air drive is firmly attached, maintaining the necessary pressure and flow dynamics essential for efficient engine performance.

When integrated into the front gear train accessory, the screw plays a pivotal role in securing the housing to the front gear, ensuring smooth transmission of power and minimizing wear and tear on the components.

In the lever and rocker mechanisms, the screw’s function is to provide a stable connection, allowing for precise control and movement, which is vital for the accurate operation of these parts.

For mounting purposes, whether it’s securing an alternator or other accessories, the 4083245 Captive Washer Cap Screw offers a reliable fastening solution. This ensures that the components remain in place under various operational stresses, contributing to the overall durability and efficiency of the engine system.

Conclusion

The 4083245 Captive Washer Cap Screw by Cummins is a critical component in the automotive and heavy-duty truck industries. Its design, featuring an integrated washer and high-strength material, ensures reliable and durable fastening in demanding applications. Proper installation and maintenance practices are essential to maximize its performance and longevity. Cummins’ reputation for quality and innovation ensures that this part delivers consistent and reliable performance in various engine systems.