3331579
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3331579, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is integral to the mechanical systems of commercial trucks, ensuring secure fastening and reliable performance under demanding conditions.

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 to distribute load and prevent the screw from sinking into softer materials. Within a truck’s mechanical system, these screws are used to secure various components, ensuring structural integrity and reliable operation.

Purpose and Role in Truck Operation

The 3331579 Hexagon Flange Head Cap Screw plays a significant role in the operation of a truck by securing critical components such as engine mounts, transmission housings, and chassis parts. Its design ensures that these components remain firmly in place, even under the dynamic loads and vibrations experienced during truck operation. The screw’s applications extend to various truck components, highlighting its importance in maintaining the overall functionality and safety of the vehicle.

Key Features

The 3331579 Hexagon Flange Head Cap Screw boasts several key features that enhance its performance and durability. Its hexagonal head design allows for easy and precise torque application, reducing the risk of over-tightening or stripping. The flange characteristic provides additional bearing surface, which helps in distributing the load more evenly and preventing the screw from pulling through the material. Additionally, the screw is made from high-quality materials, ensuring resistance to corrosion and wear, which are common issues in the demanding environment of commercial trucking.

Benefits

The 3331579 Hexagon Flange Head Cap Screw offers several benefits that contribute to its effectiveness in truck applications. One of the primary advantages is improved fastening security, which is crucial for components that experience significant stress and vibration. The screw’s design also provides resistance to loosening, ensuring that fastened components remain secure over time. Furthermore, the enhanced load distribution offered by the flange helps in prolonging the service life of both the screw and the materials it secures.

Installation and Usage

Proper installation of the 3331579 Hexagon Flange Head Cap Screw is vital for ensuring optimal performance and longevity. It is recommended to use the appropriate torque specifications provided by the manufacturer to avoid over-tightening, which can lead to damage, or under-tightening, which can result in loosening. Best practices include cleaning the installation surface to remove any debris or corrosion, using a torque wrench for accurate tightening, and periodically checking the screws for any signs of loosening or wear.

Troubleshooting and Maintenance

Common issues with the 3331579 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion caused by exposure to harsh environments. To troubleshoot these issues, regular inspections should be conducted to identify any signs of wear or damage. Maintenance tips include reapplying thread locker to prevent loosening, using corrosion-resistant coatings, and replacing screws that show significant wear or damage to ensure continued reliable performance.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and reliability in the commercial truck industry. The company’s extensive product range includes engines, powertrains, and aftermarket parts, all of which are designed to meet the rigorous demands of commercial trucking. The 3331579 Hexagon Flange Head Cap Screw is a testament to Cummins’ commitment to providing high-quality, durable components that contribute to the safe and efficient operation of commercial trucks.

Hexagon Flange Head Cap Screw (Part 3331579) Compatibility with Cummins Engines

The Hexagon Flange Head Cap Screw, part number 3331579, manufactured by Cummins, is a versatile component that finds application across various Cummins engine models. This screw is designed to provide a secure fastening solution, ensuring the integrity and stability of engine components. Below is a detailed description of its compatibility with specific Cummins engines:

G-Series Engines

• G8.3
• G8.3 CM558
• G855
• G855 CM558

The G-Series engines, including the G8.3, G8.3 CM558, G855, and G855 CM558, are medium-duty diesel engines that benefit from the use of the Hexagon Flange Head Cap Screw. This screw is often used in applications where a robust and reliable fastening method is required, such as securing engine covers, brackets, and other structural components.

GTA855 CM558 (CM2358) G101

The GTA855 CM558 (CM2358) G101 engine, a high-performance variant of the G-Series, also utilizes the Hexagon Flange Head Cap Screw. This engine is designed for heavy-duty applications, and the screw’s strength and durability make it an ideal choice for maintaining the structural integrity of the engine under demanding conditions.

KTA19 Series Engines

• KTA19GC
• KTA19GC CM558

The KTA19GC and KTA19GC CM558 engines, part of the KTA19 series, are known for their reliability and efficiency in medium-duty applications. The Hexagon Flange Head Cap Screw is used in these engines to secure various components, ensuring that the engine operates smoothly and efficiently.

QSK Series Engines

• QSK19 CM2350 K105
• QSK19 CM2350 K114
• QSK19 CM850 MCRS
• QSK38 CM2150 MCRS
• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108
• QSK60 CM850 MCRS

The QSK Series engines, including the QSK19, QSK38, and QSK50 models, are designed for a range of heavy-duty applications. The Hexagon Flange Head Cap Screw is used extensively in these engines to secure critical components, ensuring that the engine maintains its structural integrity and performance under heavy loads. The screw’s design allows for easy installation and removal, making it a practical choice for maintenance and repair operations.

Role of Part 3331579 Hexagon Flange Head Cap Screw in Engine Systems

The 3331579 Hexagon Flange Head Cap Screw is a versatile fastener utilized across various engine systems to ensure secure and reliable connections. Its application spans multiple components, contributing to the overall integrity and functionality of the engine.

Aftertreatment Mounting

In the aftertreatment system, this screw is employed to mount components such as the diesel particulate filter (DPF) and selective catalytic reduction (SCR) system. It ensures that these components remain firmly attached, minimizing vibrations and potential detachment during operation.

Auxiliary Pump Plumbing

For auxiliary pump systems, the 3331579 screw is used to secure plumbing connections. This includes attaching hoses and fittings that are critical for the circulation of fluids, such as coolant or fuel, within the engine system.

Electrical Accessories

In electrical systems, this screw plays a role in mounting various accessories. It is commonly used to secure junction boxes, terminal boxes, and other electrical components, ensuring they remain in place and function correctly.

Electronic Control Module (ECM) Wiring Harness

The screw is also utilized in the assembly of the ECM wiring harness. It helps in securing the harness to the engine frame or other structural components, providing stability and protection for the sensitive electronic connections.

Engine Control Module (ECM)

Within the ECM itself, the 3331579 screw is used to mount the module to its housing. This ensures that the ECM remains securely in place, safeguarding it from physical damage and environmental factors.

Engine Cooling System

In the engine cooling system, this screw is employed to attach components such as the radiator, coolant hoses, and the fan drive. It ensures that these parts are tightly secured, promoting efficient heat dissipation and maintaining optimal engine temperature.

Fan Drive

The screw is integral in the assembly of the fan drive system. It secures the fan to its housing and other connected components, ensuring smooth operation and effective airflow across the engine.

Fuel Filter

In fuel systems, the 3331579 screw is used to mount the fuel filter to the engine frame or fuel lines. This secure attachment prevents leaks and ensures consistent fuel delivery to the engine.

Ignition System

For the ignition system, this screw is utilized to mount ignition coils, spark plugs, and other related components. It ensures that these parts remain in the correct position, contributing to reliable ignition and engine performance.

Ignition System Arrangement

In the overall ignition system arrangement, the screw helps in securing various components together. This includes mounting the ignition control module and ensuring all parts of the system are correctly aligned and functioning.

Junction Box

The screw is commonly used in the assembly of junction boxes, where multiple electrical connections are made. It ensures that the box remains securely attached to the engine or chassis, protecting the internal wiring.

Nitrogen Oxide Sensor Location

For nitrogen oxide (NOx) sensors, the 3331579 screw is used to mount the sensor in its designated location within the exhaust system. This secure attachment ensures accurate readings and reliable performance of the sensor.

Oil Pan

In the oil pan assembly, this screw is utilized to secure the pan to the engine block. It ensures a tight seal, preventing oil leaks and maintaining the integrity of the lubrication system.

Oil Pan Mounting

Similarly, for oil pan mounting, the screw is crucial in attaching the pan to the engine frame or other structural components. This secure connection is essential for the pan’s stability and function.

Terminal Box

In terminal boxes, the screw is used to mount the box to the engine or chassis. This ensures that the box remains in place, protecting the electrical terminals and connections within.

Turbocharger

For turbochargers, the screw is employed in various mounting applications. It secures the turbocharger to the engine, ensuring it operates efficiently and remains in the correct position.

Turbocharger Arrangement

In the overall turbocharger arrangement, the screw is used to mount components such as the turbocharger gasket kit and other related parts. This ensures that all elements of the turbocharger system are securely connected and function as intended.

Turbocharger Gasket Kit

Within the turbocharger gasket kit, the screw is used to secure gaskets and other components, ensuring a tight and leak-free connection between the turbocharger and the engine.

Turbocharger Kit

Finally, in comprehensive turbocharger kits, the 3331579 screw is utilized to assemble and mount various parts of the kit. This includes securing the turbocharger housing, intercooler, and other components, ensuring the kit is installed correctly and functions optimally.

Conclusion

The 3331579 Hexagon Flange Head Cap Screw is a critical component in the mechanical systems of commercial trucks, providing secure fastening and reliable performance under demanding conditions. Its design, featuring a hexagonal head and flanged base, allows for efficient torque application and enhanced load distribution. The screw’s compatibility with various Cummins engine models underscores its versatility and importance in maintaining the structural integrity and functionality of engine components. Proper installation, regular maintenance, and adherence to manufacturer specifications are essential for ensuring the longevity and effectiveness of this Cummins part.