3079843
Captive Washer Cap Screw
Cummins®

Introduction

The Captive Washer Cap Screw, specifically Part #3079843 by Cummins, is a component designed for use in heavy-duty trucks. Cummins, a well-regarded manufacturer in the automotive industry, produces this screw to meet the demanding requirements of truck applications. This part is integral to ensuring the reliability and performance of heavy-duty vehicles ².

Basic Concepts of Captive Washer Cap Screws

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. In the automotive industry, these screws are commonly used in applications where consistent clamping force and corrosion resistance are required. They play a role in securing components, ensuring structural integrity, and maintaining proper alignment ¹.

Purpose of the 3079843 Captive Washer Cap Screw

The 3079843 Captive Washer Cap Screw is designed to play a specific role in the operation of heavy-duty trucks. It is used in applications where secure fastening is necessary to withstand significant stress and vibration. This screw helps in maintaining the integrity of truck components, contributing to overall vehicle performance and safety. Its applications range from engine mounts to chassis components, where reliable fastening is crucial ².

Key Features

The 3079843 Captive Washer Cap Screw features a design that incorporates a captive washer, which remains attached to the screw throughout installation. This design reduces installation time and ensures that the washer does not become misplaced. The screw is made from high-quality materials, offering excellent corrosion resistance and durability. Its unique characteristics include a hex-shaped head for easy tightening and a threaded body that provides a strong grip on the fastened materials.

Benefits

Using the 3079843 Captive Washer Cap Screw offers several benefits. The integrated washer design simplifies the installation process, reducing the likelihood of errors and improving efficiency. The high-quality materials used in its construction enhance its reliability and performance in heavy-duty applications. Additionally, the screw’s design contributes to a secure and consistent clamping force, which is vital for the longevity and safety of truck components.

Installation Process

Installing the 3079843 Captive Washer Cap Screw involves several steps to ensure a secure fit. Begin by aligning the screw with the designated hole in the component. Use a compatible wrench or socket to turn the screw clockwise until it is snugly fastened. It is important to avoid over-tightening, which can damage the screw or the component. Following the manufacturer’s torque specifications ensures optimal performance and longevity.

Troubleshooting Common Issues

Common issues with the 3079843 Captive Washer Cap Screw may include loosening due to vibration or corrosion over time. To address loosening, periodically inspect the screw and re-tighten as necessary. Corrosion can be mitigated by applying a corrosion-resistant coating or using screws made from materials specifically designed to resist environmental factors. Regular maintenance and inspection help identify and resolve these issues promptly.

Maintenance Tips

To ensure the longevity and optimal performance of the 3079843 Captive Washer Cap Screw, regular maintenance is recommended. Inspect the screw periodically for signs of wear, corrosion, or loosening. Cleaning the screw and surrounding area can prevent the buildup of debris that may contribute to corrosion. Following these maintenance practices helps maintain the integrity of the fastening and the overall performance of the truck.

Cummins: A Brief Overview

Cummins is a manufacturer with a strong reputation in the automotive industry. Known for its commitment to quality and innovation, Cummins produces a wide range of components designed to meet the rigorous demands of heavy-duty applications. The company’s history of excellence and dedication to producing reliable, high-performance parts underscores its position as a leader in the field ².

Role of Part 3079843 Captive Washer Cap Screw in Engine Systems

The Part 3079843 Captive Washer Cap Screw is integral to the assembly and functionality of various engine components, ensuring secure and reliable connections.

Aftercooler

In the aftercooler system, the Part 3079843 Captive Washer Cap Screw is used to fasten components such as the aftercooler core, end tanks, and connecting hoses. This screw ensures that the aftercooler remains securely attached to the engine, maintaining the integrity of the cooling system. The captive washer within the screw design prevents loss of the washer during installation, enhancing the efficiency of the assembly process.

Engine Oil Cooler

For the engine oil cooler, the Part 3079843 Captive Washer Cap Screw plays a significant role in attaching the cooler to the engine block or mounting brackets. This secure attachment is essential for maintaining the structural stability of the oil cooler, which is vital for effective heat dissipation from the engine oil. The screw’s design also aids in maintaining a leak-proof seal, preventing oil leaks that could lead to engine damage.

In both applications, the Part 3079843 Captive Washer Cap Screw contributes to the overall reliability and performance of the engine systems by ensuring that critical components are firmly and securely attached.

Conclusion

The 3079843 Captive Washer Cap Screw by Cummins is a vital component in the maintenance and operation of heavy-duty trucks and engines. Its design, featuring an integrated washer, simplifies installation and ensures secure fastening in demanding applications. Regular maintenance and proper installation are key to maximizing the performance and longevity of this Cummins part.