2840364
Hexagon Head Set Screw
Cummins®

The Hexagon Head Set Screw, specifically part #2840364 manufactured by Cummins, plays a role in the assembly and operation of commercial trucks. This screw is designed to secure components in place, ensuring the structural integrity and functionality of various truck systems. Understanding its role and significance is important for maintaining and repairing commercial vehicles.

Basic Concepts of Hexagon Head Set Screws

A Hexagon Head Set Screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. These screws are commonly used in mechanical applications to secure components without the need for a nut. They are typically made from materials such as stainless steel, carbon steel, or brass, depending on the specific application requirements. Common sizes range from small diameters for precise applications to larger ones for heavy-duty uses. The thread types can vary, including machine threads for general use and fine threads for applications requiring a tighter fit ¹.

Role of the 2840364 Hexagon Head Set Screw in Truck Operation

The 2840364 Hexagon Head Set Screw is utilized in various applications within commercial trucks. It is often found in engine components, transmission systems, and chassis assemblies. This screw contributes to the secure attachment of parts, ensuring that critical components remain in place under the stress of operation. Its role in maintaining the alignment and integrity of truck components is fundamental to the overall performance and safety of the vehicle ².

Key Features

The 2840364 Hexagon Head Set Screw features a hexagonal head, which provides a stable and reliable surface for tool engagement. This design allows for consistent torque application, reducing the risk of over-tightening or under-tightening. The screw is also designed with a specific thread pitch and length to match the requirements of its applications, ensuring a secure fit in the designated components. Additionally, the material used in its construction is chosen for its durability and resistance to corrosion, making it suitable for the demanding environments encountered in commercial truck operations ³.

Benefits

Using the 2840364 Hexagon Head Set Screw offers several advantages. Its hexagonal head design allows for efficient and precise tightening and loosening, which is important during maintenance and repair operations. The screw provides enhanced security in fastening, reducing the likelihood of components becoming loose over time. Its resistance to vibration loosening ensures that it remains securely in place even under the dynamic conditions experienced by commercial trucks. Furthermore, the ease of use with standard wrenches or sockets makes it a practical choice for both routine maintenance and emergency repairs.

Troubleshooting and Maintenance

Common issues associated with Hexagon Head Set Screws include stripping and seizing. Stripping can occur if excessive torque is applied, while seizing may happen due to corrosion or improper material selection. To maintain the longevity and reliability of these screws, it is recommended to use the correct tools and torque specifications during installation. Regular inspection and replacement of screws showing signs of wear or corrosion are also advisable. Additionally, ensuring that the screws are made from appropriate materials for the specific application can prevent many common issues ⁴.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins is renowned for its expertise in engine design and its commitment to quality and innovation. The company’s products are widely used in commercial vehicles, providing reliable and efficient power solutions that meet the demanding requirements of the industry. Cummins’ dedication to advancing technology and improving performance has established it as a trusted name in the commercial vehicle sector.

Hexagon Head Set Screw 2840364 Compatibility with Cummins Engines

The Cummins Hexagon Head Set Screw, part number 2840364, is a versatile component designed to fit a wide range of Cummins engines. This screw is integral in securing various parts within the engine assembly, ensuring stability and reliability during operation. Below is a detailed overview of the engines with which this set screw is compatible.

ISB Series Engines

• ISB CM550
• ISB/ISD6.7 CM2150 SN
• ISB3.9 CM2220 B107
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B127
• ISB5.9G CM2180

The ISB series engines, including the ISB CM550, ISB/ISD6.7 CM2150 SN, ISB3.9 CM2220 B107, ISB5.9 CM2880 B110, ISB5.9 CM2880 B127, and ISB5.9G CM2180, all utilize the Hexagon Head Set Screw 2840364 in various applications. This screw is often used in securing components such as valve covers, timing covers, and other critical parts that require precise fastening.

ISBE Series Engines

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

The ISBE series engines, including the ISBE CM2150, ISBE CM800, and ISBE4 CM850, also incorporate the Hexagon Head Set Screw 2840364. This screw is essential in maintaining the structural integrity of these engines, particularly in securing components that are subject to high stress and vibration.

ISC Series Engines

• ISC CM554

The ISC CM554 engine utilizes the Hexagon Head Set Screw 2840364 in several critical applications. This screw is crucial for securing various engine components, ensuring that they remain firmly in place under operational conditions.

B Series Engines

• B4.5
• B5.9 CM2670 B166C
• B5.9 G
• B5.9 GAS PLUS CM556
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125
• B6.7S
• C GAS PLUS CM556
• C8.3 G
• F4.5 CM2620 F141C
• G8.3
• GTA8.3 CM558

The B series engines, including B4.5, B5.9 CM2670 B166C, B5.9 G, B5.9 GAS PLUS CM556, B6.7 CM2670 B164C, B6.7 G CMOH6.0 B125, B6.7S, C GAS PLUS CM556, C8.3 G, F4.5 CM2620 F141C, G8.3, and GTA8.3 CM558, also make use of the Hexagon Head Set Screw 2840364. This screw is vital for securing a variety of components within these engines, ensuring that they remain securely fastened and operational.

The Hexagon Head Set Screw 2840364 is a component in maintaining the structural integrity and operational efficiency of these Cummins engines. Its use across such a diverse range of engine models underscores its versatility and importance in engine assembly and maintenance.

Role of Part 2840364 Hexagon Head Set Screw in Engine Systems

The Part 2840364 Hexagon Head Set Screw is integral to the assembly and maintenance of various engine components. Its primary function is to provide secure fastening, ensuring that parts remain firmly in place under the demanding conditions of engine operation.

Application in Turbocharger Systems

In turbocharger systems, including aftermarket turbochargers and turbocharger kits, the Hexagon Head Set Screw is used to secure components such as the turbocharger actuator and turbocharger adapter kit. It plays a role in the turbocharger actuator kit by fastening the actuator to the turbocharger, ensuring precise control over the turbine’s operation. Additionally, in the turbocharger repair kit, this screw is essential for reassembling components after maintenance, guaranteeing that all parts are correctly aligned and secured.

Importance in Fuel System Components

For fuel system components like the fuel injection pump and fuel pump coupling, the Hexagon Head Set Screw is utilized to fasten critical parts, ensuring the integrity of the fuel delivery system. It helps in maintaining the alignment and connection of the fuel pump coupling to the engine, which is vital for consistent fuel supply and engine performance.

Role in Exhaust Systems

In exhaust systems, particularly within the exhaust manifold kit and exhaust throttle valve, the Hexagon Head Set Screw secures various components, ensuring they withstand the high temperatures and pressures generated during engine operation. It is also used in the pre-set turbine housing kit to fasten the turbine housing, contributing to the efficient flow of exhaust gases and overall turbocharger performance.

Usage in Assembly and Campaign Kits

The screw is a common fastener in assembly kits and campaign kits, where it is used to secure multiple components during the initial setup or during upgrades and repairs. Its application in these kits ensures that all parts are correctly installed and maintained, contributing to the longevity and reliability of the engine system.

Integration in Core Assemblies and Engine Installation Kits

In core assemblies and engine installation kits, the Hexagon Head Set Screw is employed to fasten critical components, ensuring that the engine is correctly assembled and all parts are securely in place. This is particularly important in complex assemblies where multiple components must work in unison.

Application in Performance Parts

For performance parts, including those designed for enhanced engine output, the Hexagon Head Set Screw is used to secure modifications and upgrades. Its role in these applications is to ensure that performance enhancements are firmly installed, contributing to the overall performance and reliability of the engine.

Conclusion

The 2840364 Hexagon Head Set Screw is a critical component in the maintenance and operation of commercial trucks and Cummins engines. Its versatile applications across various engine systems highlight its importance in ensuring the structural integrity and operational efficiency of these machines. Proper use, maintenance, and understanding of this Cummins part are essential for anyone involved in the repair and maintenance of commercial vehicles.