4095839
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4095839, is a component manufactured by Cummins, a well-regarded name in the automotive and heavy-duty truck industry. This screw is significant in commercial trucks due to its robust design and reliable performance, contributing to the overall efficiency and durability of truck components.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flanged base. The hexagonal head allows for efficient torque application using standard tools, while the flange provides additional surface area for load distribution and prevents the screw from being driven too far into the material. Within a truck’s mechanical system, these screws are used to secure various components, ensuring they remain firmly in place under operational stress ¹.

Purpose and Role in Truck Operation

This Cummins part plays a role in the operation of a truck by securing critical components such as engine parts, chassis elements, and other structural assemblies. Its applications range from fastening engine blocks to securing brackets and panels. The screw’s design ensures that these components remain stable and aligned, which is vital for the truck’s performance and safety ².

Key Features

The 4095839 features a hexagonal head that facilitates easy and precise tightening using common tools. The flange at the base of the screw provides additional contact area, which helps in distributing the load more evenly and prevents the screw from sinking into the material. Additionally, the screw is made from high-quality materials that offer excellent resistance to corrosion and wear, ensuring durability in demanding environments ³.

Benefits

Using this part offers several benefits. The hexagonal head design allows for efficient torque application, reducing the risk of stripping or over-tightening. The flange enhances stability by providing a larger contact area, which improves load distribution. Furthermore, the screw’s resistance to loosening ensures that components remain securely fastened, even under vibration and dynamic loads ⁴.

Installation and Usage

Proper installation of the 4095839 is vital for optimal performance. It should be installed using the correct torque specifications to ensure it is tightened to the appropriate level without over-tightening. Best practices include using a torque wrench to apply the recommended torque and periodically checking the fastener to ensure it remains secure. Following these guidelines helps maintain the screw’s integrity and the overall reliability of the truck’s components.

Troubleshooting and Maintenance

Common issues with the 4095839 may include loosening over time due to vibration or corrosion. Regular inspection and maintenance can help identify and address these issues promptly. If a screw appears loose, it should be re-tightened to the specified torque. In cases of corrosion, the affected screw should be replaced to prevent further degradation. Routine checks and timely replacements ensure the continued reliable performance of the truck.

Cummins Overview

Cummins is a reputable manufacturer known for its high-quality automotive components. With a long history in the industry, Cummins has established a strong reputation for producing reliable and durable parts. The company’s commitment to quality is evident in its rigorous testing and quality control processes, ensuring that each component, including the 4095839, meets the highest standards of performance and reliability.

Hexagon Flange Head Cap Screw (Part 4095839) in Cummins Engines

The Hexagon Flange Head Cap Screw, identified as part number 4095839, is a critical component in several Cummins engines. This screw is designed to secure various parts within the engine, ensuring structural integrity and operational efficiency. Here’s how it fits into the specified engines:

QSB3.3 CM2150 and QSB4.5 CM2250 EC

In the QSB3.3 CM2150 and QSB4.5 CM2250 EC engines, the 4095839 screw is used to fasten components that require a robust connection. These engines, known for their reliability and performance, benefit from the screw’s ability to withstand high stress and maintain a tight seal. The screw’s design ensures that the fastened parts remain secure under varying operational conditions.

QSB6.7 CM850 (CM2850) and QSB7 CM2880 B117

For the QSB6.7 CM850 (CM2850) and QSB7 CM2880 B117 engines, the 4095839 screw plays a vital role in securing larger and more complex components. These engines, which are part of Cummins’ lineup of high-performance diesel engines, demand components that can endure significant mechanical forces. The screw’s hexagonal head provides a larger surface area for torque application, ensuring that the fastened parts remain stable and do not loosen over time.

QSC9 CM2250/QSL9 CM2250

In the QSC9 CM2250 and QSL9 CM2250 engines, the 4095839 screw is used to secure various critical parts, including those in the engine’s cooling and fuel systems. These engines, designed for heavy-duty applications, require components that can maintain their integrity under extreme conditions. The screw’s design allows for easy installation and removal, which is crucial during maintenance and repair operations.

Each of these engines benefits from the use of the 4095839 screw, which ensures that the engine’s components remain securely fastened, contributing to the overall performance and longevity of the engine.

Role of Part 4095839 Hexagon Flange Head Cap Screw in Engine Systems

The part 4095839 Hexagon Flange Head Cap Screw is instrumental in securing various components within engine systems, ensuring stability and proper function.

Engine Control Module (ECM) and Mounting

In the engine control module (ECM) and its mounting setup, the Hexagon Flange Head Cap Screw is used to fasten the ECM to its designated mounting bracket. This secure attachment is vital for maintaining the ECM’s position and ensuring it remains unaffected by engine vibrations.

Fuel System Components

Within the fuel system, particularly at the fuel filter and its associated plumbing, the Hexagon Flange Head Cap Screw plays a significant role. It is employed to secure the fuel filter housing, ensuring a leak-free connection. Additionally, it is used in the plumbing connections to the fuel filter, providing a robust seal that prevents fuel leaks.

Electronic Control Module (ECM) Wiring Harness

The ECM wiring harness often requires secure attachment points to prevent wire chafing and ensure consistent electrical connections. The Hexagon Flange Head Cap Screw is utilized to mount the harness to the engine bay, providing a stable and vibration-resistant connection.

Alternator Mounting

For the alternator, the Hexagon Flange Head Cap Screw is essential in securing the alternator to its mounting bracket. This ensures the alternator remains firmly in place, allowing it to function efficiently without the risk of dislodging due to engine vibrations.

Spacer and Fan Pilot

In applications involving spacers and fan pilots, the Hexagon Flange Head Cap Screw is used to maintain precise spacing and alignment. This is particularly important in ensuring that the fan pilot operates correctly, contributing to effective engine cooling.

Overall, the Hexagon Flange Head Cap Screw (part 4095839) is a versatile fastener that enhances the reliability and performance of various engine components by providing secure and stable connections.

Conclusion

The 4095839 Hexagon Flange Head Cap Screw is a critical component in the automotive and heavy-duty truck industry, offering robust design, reliable performance, and versatile applications. Its role in securing various engine components ensures the stability, efficiency, and longevity of truck systems. Proper installation, regular maintenance, and timely replacements are essential to maintain the screw’s integrity and the overall reliability of the vehicle.