4390732
Hexagon Flange Head Cap Screw
Cummins®

Introduction

The Hexagon Flange Head Cap Screw, identified by part number 4390732, is a component manufactured by Cummins, a reputable name in the commercial truck industry. This screw plays a significant role in the assembly and maintenance of commercial trucks, ensuring the secure fastening of various components. Cummins is known for its commitment to producing high-quality parts that enhance the performance and reliability of commercial vehicles.

Basic Concepts

Hexagon Flange Head Cap Screws are designed with a hexagonal head, which allows for efficient tightening and loosening using standard tools. The flange feature provides a larger bearing surface, which helps distribute the load more evenly and reduces the risk of the screw head sinking into softer materials. These screws are typically made from high-strength materials such as alloy steel, which ensures they can withstand significant stress and provide durable fastening solutions in the automotive industry. Their standard applications include securing engine components, chassis parts, and other critical assemblies in commercial trucks.

Functionality and Operation

Within the context of a commercial truck, the Hexagon Flange Head Cap Screw operates by securely fastening components together. Its design allows it to provide a strong, stable connection that can resist vibrational forces and maintain structural integrity under various operating conditions. The screw’s hexagonal head facilitates easy installation and removal, while the flange ensures that the connected parts remain aligned and securely fastened.

Purpose and Role in Truck Operation

This Cummins part serves a specific purpose in the operation of a truck by ensuring that critical components are securely fastened. This is particularly important in systems and assemblies that are subject to high stress and vibration, such as the engine, transmission, and chassis. By providing a reliable fastening solution, this screw contributes to the overall safety and performance of the truck.

Key Features

The 4390732 boasts several key features that enhance its functionality. The hexagonal head design allows for straightforward installation and removal using common tools. The flange feature provides an increased bearing surface, which helps prevent the screw from sinking into the material it is fastening. Additionally, the cap screw functionality ensures a strong, secure connection that can withstand the rigors of heavy-duty applications.

Benefits

The benefits of using the 4390732 include enhanced fastening security, resistance to loosening, and durability in heavy-duty applications. The screw’s design ensures that it can maintain a strong connection under significant stress, reducing the risk of component failure. Its resistance to loosening helps ensure that fastened components remain securely in place, even under vibrational forces. The durability of the screw makes it a reliable choice for long-term use in commercial trucks.

Installation Considerations

Proper installation of the 4390732 is crucial for ensuring optimal performance and longevity. Guidelines for installation include using the correct torque specifications to avoid over-tightening, which can damage the screw or the material it is fastening. It is also important to ensure that the connected parts are properly aligned before tightening the screw. Following recommended procedures will help ensure that the screw provides a secure and lasting connection.

Troubleshooting and Maintenance

Common issues related to the 4390732 can include loosening over time or damage due to corrosion. Troubleshooting these issues may involve re-tightening the screw or replacing it if it is damaged. Regular maintenance practices, such as inspecting the screw for signs of wear or corrosion and ensuring that it remains properly tightened, can help prolong its service life and ensure continued reliability.

Cummins Overview

Cummins is a reputable manufacturer in the automotive industry, known for its high-quality components for commercial trucks. The company has a long history of innovation and commitment to producing reliable parts that enhance the performance and durability of commercial vehicles. Cummins’ reputation is built on its dedication to excellence and its ongoing efforts to provide customers with the best possible products and services.

Cummins Hexagon Flange Head Cap Screw 4390732 in Engine Applications

The Cummins Hexagon Flange Head Cap Screw, part number 4390732, is a critical component used in various engine applications. This screw is designed to provide secure fastening in environments where high strength and durability are essential.

ISV (Nissan)

In the ISV (Nissan) engine, the 4390732 screw is utilized for securing various engine components, ensuring that parts remain tightly fastened under operational stresses. Its flange head design allows for a larger bearing surface, distributing the load more evenly and preventing damage to the fastened parts.

X12N CMMDG1 X143B

For the X12N CMMDG1 X143B engine, the 4390732 screw plays a pivotal role in maintaining the integrity of the engine assembly. Given the specific demands of this engine, the screw’s robust construction and precise fit are crucial for maintaining operational efficiency and longevity.

In both engines, the use of the 4390732 screw ensures that critical components are held securely, contributing to the overall reliability and performance of the engine.

Hexagon Flange Head Cap Screw (Part 4390732) Component Usage

The Hexagon Flange Head Cap Screw, identified by part number 4390732, is integral to the assembly and securement of various engine components. Its robust design ensures reliable fastening in high-stress environments, making it suitable for several applications within engine systems.

Air Intake Manifold

In the air intake manifold, the Hexagon Flange Head Cap Screw is used to fasten the manifold to the engine block. This secure attachment ensures that the manifold remains firmly in place, allowing for efficient airflow into the engine cylinders. Proper fastening is essential for maintaining the integrity of the air intake system, which directly influences engine performance and efficiency.

Brake System

Within the brake system, these screws are employed to secure brake components such as calipers and brackets. The flange head provides additional surface area for torque application, ensuring that brake components remain stable under the high forces experienced during braking. This stability is vital for consistent brake performance and safety.

Exhaust System

In the exhaust system, the Hexagon Flange Head Cap Screw is used to attach exhaust manifolds and catalytic converters to the engine. This securement is crucial for maintaining the structural integrity of the exhaust path, ensuring that exhaust gases are efficiently directed away from the engine. Additionally, these screws help in reducing vibrations that can occur due to the high temperatures and pressures within the exhaust system.

Exhaust Recirculation Cooler Kit

For the Exhaust Recirculation Cooler Kit, these screws are utilized to fasten the cooler to the engine and other components. The cooler’s role in reducing nitrogen oxide emissions requires a secure and stable attachment to function effectively. The flange head design of the screw aids in distributing the clamping force evenly, preventing leaks and ensuring optimal performance of the recirculation system.

Exhaust Recirculation Valve Kit

In the Exhaust Recirculation Valve Kit, the Hexagon Flange Head Cap Screw is employed to secure the valve to the engine. This attachment is essential for the valve to operate correctly, redirecting a portion of the exhaust gases back into the intake manifold. Secure fastening ensures that the valve can withstand the pressures and temperatures involved in the recirculation process, contributing to reduced emissions and improved engine efficiency.

Turbocharger Arrangement

Within the turbocharger arrangement, these screws are used to attach the turbocharger to the engine and exhaust system. The turbocharger operates under extreme conditions, and the secure attachment provided by the Hexagon Flange Head Cap Screw is essential for maintaining the turbocharger’s position and functionality. This ensures that the turbocharger can effectively increase engine power and efficiency by compressing the intake air.

Conclusion

The Hexagon Flange Head Cap Screw (part number 4390732) by Cummins is a vital component in the assembly and maintenance of commercial trucks and engines. Its robust design, ease of installation, and reliable performance make it an essential part for ensuring the secure fastening of critical components. Proper installation and maintenance of this screw contribute to the overall safety, performance, and longevity of commercial vehicles.