3558761
Hexagon Head Cap Screw
Cummins®

The Hexagon Head Cap Screw, specifically Part #3558761 by Cummins, is a vital component in the maintenance and operation of commercial trucks. Cummins, a well-established manufacturer in the commercial truck industry, produces this screw to meet the demanding requirements of heavy-duty applications. This part is integral to ensuring the structural integrity and reliable performance of various truck components.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. The design of the screw includes threads that engage with the internal threads of a nut or a pre-tapped hole, providing a secure fastening solution. In commercial truck applications, these screws are used to join components that require a high degree of stability and resistance to vibration ¹.

Purpose of the 3558761 Hexagon Head Cap Screw in Truck Operations

The 3558761 Hexagon Head Cap Screw by Cummins is designed to play a specific role in the operation and maintenance of commercial trucks. It is used in applications where secure fastening is required to withstand the rigors of heavy-duty use. This screw is often found in engine components, chassis assemblies, and other critical areas where vibration and stress are common. Its purpose is to provide a reliable connection that maintains integrity under varying operational conditions ².

Key Features of the 3558761 Hexagon Head Cap Screw

The 3558761 Hexagon Head Cap Screw boasts several unique attributes that make it suitable for heavy-duty applications. These include a high-strength material composition that ensures durability under stress, a precise thread design that offers optimal engagement, and a hexagonal head that facilitates easy installation and removal. Additionally, the screw is coated to resist corrosion, enhancing its longevity in harsh environments ³.

Benefits of Using the 3558761 Hexagon Head Cap Screw

Using the 3558761 Hexagon Head Cap Screw offers several advantages in commercial truck environments. Its high durability ensures long-term performance, reducing the need for frequent replacements. The ease of use, thanks to its hexagonal head, allows for quick and efficient installation. Moreover, its reliability under stress and vibration conditions contributes to the overall safety and efficiency of truck operations.

Installation and Usage Guidelines

To ensure optimal performance and longevity of the 3558761 Hexagon Head Cap Screw, follow these installation guidelines:

1. Ensure the mating surface is clean and free of debris.
2. Use the appropriate wrench or socket to tighten the screw to the specified torque setting.
3. Avoid over-tightening, as this can lead to thread damage or component failure.
4. Periodically check the screw for signs of loosening or wear.

Troubleshooting Common Issues

Common issues with Hexagon Head Cap Screws include loosening due to vibration, corrosion, and thread damage. To address these problems:

1. Regularly inspect screws for signs of corrosion and apply a protective coating if necessary.
2. Use lock washers or thread lockers to prevent loosening.
3. Replace screws showing signs of thread damage to avoid component failure.

Maintenance Tips

To extend the service life of the 3558761 Hexagon Head Cap Screw:

1. Perform regular inspections during routine maintenance checks.
2. Clean and re-torque screws as needed to ensure they remain secure.
3. Protect screws from environmental factors that may cause corrosion.

Cummins: A Brief 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 strong reputation for quality and innovation in the commercial truck industry. The company offers a wide range of products designed to meet the needs of heavy-duty applications, ensuring reliability and performance in various operational environments.

Hexagon Head Cap Screw 3558761 in Cummins Engines

The Cummins Hexagon Head Cap Screw part number 3558761 is a versatile component utilized across a variety of Cummins engine models. This screw is integral in securing various parts and assemblies within the engine, ensuring structural integrity and operational efficiency.

Cummins Medium-Duty Engines

• 4B3.9
• 6B5.9
• 6C8.3
• B5.9 G
• C8.3 G

These engines, primarily used in medium-duty applications, benefit from the reliability and precision of the 3558761 screw in maintaining the alignment and stability of critical engine components.

Cummins High-Duty Engines

• ISB CM550
• ISC CM554
• ISM CM570
• N14 CELECT
• N14 CELECT PLUS
• N14 MECHANICAL
• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

In high-duty applications, the 3558761 screw is essential for securing heavy-duty components and ensuring the engine can withstand rigorous operational demands. Its use in both CELECT and MECHANICAL variants highlights its adaptability across different engine technologies.

Cummins Specialized Engines

• K19
• K38
• QSK19 CM500
• QSM11 CM570

These specialized engines, often used in niche applications such as marine and power generation, also rely on the 3558761 screw for its robust design and precision fit, ensuring optimal performance in demanding environments.

Cummins L10 and M11 Engines

• L10 CELECT
• L10 GAS
• L10 MECHANICAL
• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

The L10 and M11 series engines, known for their versatility and efficiency, incorporate the 3558761 screw in various configurations to maintain the integrity of their complex assemblies.

Cummins N14 Engines

• N14 CELECT
• N14 CELECT PLUS
• N14 MECHANICAL

The N14 engines, a staple in heavy-duty applications, utilize the 3558761 screw to secure critical components, ensuring the engine’s durability and performance under heavy loads.

Cummins V-Series Engines

• V28
• V903

The V-series engines, designed for high-performance applications, also incorporate the 3558761 screw to maintain the structural integrity of their assemblies, ensuring reliable operation in demanding conditions.

Cummins NH/NT 855

• NH/NT 855

This engine, often used in agricultural and construction equipment, relies on the 3558761 screw for its precision and durability, ensuring the engine can handle the rigors of these demanding applications.

The 3558761 Hexagon Head Cap Screw is a testament to Cummins’ commitment to quality and reliability, providing a critical component that ensures the longevity and performance of their diverse engine lineup.

Role of Part 3558761 Hexagon Head Cap Screw in Various Engine Systems

The part 3558761 Hexagon Head Cap Screw is integral to the assembly and functionality of several engine components. Its primary role is to secure and fasten various parts, ensuring they remain in place under operational conditions.

Air Compressor Systems

In air compressor systems, the Hexagon Head Cap Screw is used to fasten the cylinder air (painted) compressor, ensuring the structural integrity of the assembly. It is also employed in the cylinder air compressor and cylinder compressor crankcase to maintain the alignment and stability of these components.

For the air 1-cylinder compressor, this screw plays a vital role in securing the compressor head and other critical parts, facilitating efficient air compression. In the broader air compressor system, it is utilized in multiple locations, including the air compressor dummy opt and air compressor head, to ensure all components are tightly secured.

Compressor and Crankcase Assemblies

Within the compressor and compressor crankcase assemblies, the Hexagon Head Cap Screw is essential for fastening the comp ar73807 head 2420 and other components. It ensures that the compressor air system, particularly the compressor air 2.2.2. head code, operates smoothly without any part becoming loose.

Conversion Kits and Accessories

In compressor conversion kits, this screw is used to secure new components onto existing structures, ensuring a seamless integration. For the drive accessory and ebm: compressor, air systems, it provides the necessary fastening power to keep all parts in optimal working condition.

Fuel and Vacuum Systems

In the fuel pump and fuel pump compressor assembly, the Hexagon Head Cap Screw is employed to secure the pump components, ensuring reliable fuel delivery. Similarly, in the vacuum pump system, it is used to fasten various parts, maintaining the vacuum integrity required for efficient operation.

Thermostat and Housing

The screw is also crucial in securing the housing and thermostat components, ensuring they remain in place and function correctly under varying temperature conditions.

Overall, the part 3558761 Hexagon Head Cap Screw is a versatile fastener that enhances the reliability and performance of various engine systems by ensuring all components are securely fastened.

Conclusion

The 3558761 Hexagon Head Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks. Its high-strength material, precise thread design, and corrosion-resistant coating make it suitable for heavy-duty applications. Proper installation, regular maintenance, and timely troubleshooting are essential to ensure the longevity and reliability of this part in various engine systems.

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