4992390
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 4992390, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is significant in the realm of truck maintenance due to its robust design and reliable performance. Cummins, known for its commitment to quality and innovation, produces this screw to meet the demanding requirements of commercial truck applications.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and a flange that sits against the surface being fastened. This design allows for efficient tightening and loosening using a wrench or socket, while the flange provides additional surface contact, enhancing stability and resistance to rotation ¹. In the context of truck components, this screw is utilized to secure various parts, ensuring they remain firmly in place despite the vibrations and stresses encountered during operation.

Purpose and Role in Truck Operation

The 4992390 Hexagon Flange Head Cap Screw plays a specific role in the operation and maintenance of commercial trucks. It is employed in various truck systems where secure fastening is required. This includes, but is not limited to, engine components, chassis parts, and body panels. By providing a strong and stable connection, this screw helps maintain the integrity and functionality of these systems, contributing to the overall performance and safety of the truck ².

Key Features

The 4992390 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and durability. Its hexagonal flange head design allows for easy and efficient installation and removal using standard tools. The screw is composed of high-quality materials, ensuring it can withstand the rigors of commercial truck use. Additionally, any unique attributes, such as corrosion resistance or enhanced tensile strength, further contribute to its reliability and longevity ³.

Benefits

Using the 4992390 Hexagon Flange Head Cap Screw in truck maintenance offers several benefits. The design of the screw provides improved fastening security, reducing the risk of loosening over time. Its resistance to vibration ensures that connections remain tight, even under the dynamic conditions experienced by commercial trucks. Furthermore, the ease of installation and removal simplifies maintenance procedures, allowing for quicker and more efficient service.

Installation and Usage

Proper installation and usage of the 4992390 Hexagon Flange Head Cap Screw are vital to ensure optimal performance and longevity. It is important to follow torque specifications provided by the manufacturer to achieve the correct tension without overtightening, which could damage the screw or the components being fastened. Best practices include using the appropriate tools and ensuring that the surfaces being joined are clean and free of debris to promote a secure connection.

Troubleshooting and Maintenance

Common issues related to the 4992390 Hexagon Flange Head Cap Screw, such as loosening or corrosion, can often be addressed through regular inspection and maintenance. If a screw appears loose, it should be retightened to the specified torque. Corrosion can be prevented by ensuring that the screw and surrounding areas are kept clean and dry. Applying a corrosion-resistant coating can also help prolong the screw’s lifespan and ensure continued reliable performance.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions technologies. With a history spanning over a century, Cummins is renowned for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range serves various industries, with a strong focus on the commercial truck sector, where reliability and performance are paramount.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw Part 4992390

The Cummins Hexagon Flange Head Cap Screw part number 4992390 is a versatile component that fits a variety of Cummins engines. This screw is designed to provide a secure fastening solution in various engine applications. Below is a detailed description of its compatibility across different engine models.

Flange Head Cap Screw Compatibility

F2.8 CM2620 F135B and F3.8 CM2350 F128C

The part 4992390 is compatible with the F2.8 CM2620 F135B and F3.8 CM2350 F128C engines. These engines are known for their robust design and reliability, often used in demanding applications. The screw’s flange head provides a broad surface area for effective torque application, ensuring a tight and secure fit.

ISB4.5 CM2350 B104, ISF2.8 CM2220 F117, ISF2.8 CM2220 F129, ISF3.8 CM2220 AN, ISF3.8 CM2220 F103

The ISB4.5 CM2350 B104 engine, along with the ISF2.8 CM2220 F117, ISF2.8 CM2220 F129, ISF3.8 CM2220 AN, and ISF3.8 CM2220 F103 engines, also benefit from the use of the part 4992390. These engines are designed for heavy-duty applications, and the screw’s design ensures it can withstand the stresses of these environments.

QSF2.8 CM2880 F105, QSF2.8 CM2880 F114, QSF3.8 CM2350 F107, QSF3.8 CM2880 F112

The QSF2.8 CM2880 F105 and QSF2.8 CM2880 F114 engines, as well as the QSF3.8 CM2350 F107 and QSF3.8 CM2880 F112 engines, are another set of models that can utilize the part 4992390. These engines are engineered for high performance and durability, and the screw’s precision ensures it fits seamlessly into these applications.

R2.8 CM2220 R101B

The R2.8 CM2220 R101B engine is also compatible with the part 4992390. This engine is designed for specific applications requiring a balance of power and efficiency, and the screw’s design supports these requirements.

X11 CM2670 X126B, X12 CM2670 X121B, X13 CM2670 X122B

Lastly, the X11 CM2670 X126B, X12 CM2670 X121B, and X13 CM2670 X122B engines are also suitable for the part 4992390. These engines are known for their advanced technology and performance, and the screw’s compatibility ensures it can be used effectively in these high-performance engines.

The part 4992390 is designed to meet the stringent requirements of Cummins engines, providing a reliable and secure fastening solution across a wide range of engine models.

Role of Part 4992390 Hexagon Flange Head Cap Screw in Engine Systems

The part 4992390 Hexagon Flange Head Cap Screw is integral to the secure and efficient operation of various engine components. Its design and functionality make it suitable for applications where robust fastening is required.

Turbocharger Arrangement

In turbocharger systems, the Hexagon Flange Head Cap Screw is often used to fasten components such as the compressor housing to the turbine housing. This secure attachment ensures that the turbocharger operates efficiently, maintaining the precise alignment necessary for optimal performance.

Plumbing and Turbocharger Integration

When integrating turbochargers into the engine’s plumbing system, these screws play a vital role in securing the intercooler and charge air cooler connections. Proper fastening prevents leaks and ensures that the airflow through the system remains consistent, contributing to enhanced engine performance and reliability.

Exhaust and Recirculation Systems

In exhaust systems, particularly those involving Exhaust Gas Recirculation (EGR), the Hexagon Flange Head Cap Screw is used to secure EGR valves and related components. This ensures that the recirculated exhaust gases are effectively mixed with the intake air, reducing emissions and improving combustion efficiency.

Sensor and Pressure Applications

For sensors that monitor various engine parameters, such as pressure sensors in the intake manifold or turbocharger, these screws provide the necessary stability. Secure fastening of sensors ensures accurate readings, which are essential for the engine control unit (ECU) to make precise adjustments to fuel delivery and ignition timing.

Shield and Heat Management

In applications where heat shields are used to protect nearby components from the high temperatures generated by the exhaust system, the Hexagon Flange Head Cap Screw is employed to firmly attach these shields. This not only protects sensitive parts from heat damage but also ensures that the shields remain in place under varying engine operating conditions.

The reliable performance of the Hexagon Flange Head Cap Screw in these applications underscores its importance in maintaining the integrity and efficiency of engine systems.

Conclusion

The 4992390 Hexagon Flange Head Cap Screw is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its robust design, ease of use, and compatibility with a wide range of engine models make it an indispensable part for ensuring the secure fastening of various engine components. Proper installation, regular maintenance, and understanding its role in engine systems are essential for maximizing its performance and longevity.