3279355
Regular Hexagon Nut
Cummins®

The 3279355 Regular Hexagon Nut, manufactured by Cummins, is a component integral to the maintenance and operation of commercial trucks. Cummins, a well-established name in the commercial truck industry, produces this nut to meet the rigorous demands of heavy-duty applications. This nut is designed to provide reliable fastening solutions, ensuring the integrity and safety of truck components ².

Basic Concepts of Regular Hexagon Nuts

A regular hexagon nut is a type of fastener characterized by its six-sided shape. This design allows for efficient tightening and loosening using standard hexagonal socket wrenches. The hexagonal shape offers several advantages over other nut designs, including a larger contact area with the wrench, which reduces the risk of rounding off the corners during use. Additionally, the uniform shape ensures consistent torque application, enhancing the security of the fastened components ¹.

Purpose and Role in Truck Operation

The 3279355 Regular Hexagon Nut plays a significant role in the operation and maintenance of commercial trucks. It is commonly used in applications where secure fastening is required, such as in the attachment of critical components like engine mounts, exhaust systems, and chassis parts. The nut’s design ensures that these components remain firmly in place, even under the dynamic conditions experienced by commercial trucks. This reliability is vital for the overall integrity and safety of the vehicle ².

Key Features

The 3279355 Regular Hexagon Nut is crafted from high-quality materials, typically a durable alloy steel, to withstand the harsh conditions of commercial truck environments. It features a specific thread size that matches the bolts it is designed to pair with, ensuring a precise fit and optimal performance. Additionally, the nut may include unique design elements such as a corrosion-resistant coating to enhance its durability in various operating environments ².

Benefits

Using the 3279355 Regular Hexagon Nut in truck applications offers several benefits. Its design provides improved fastening security, ensuring that components remain securely attached even under vibration and dynamic loads. The nut’s compatibility with standard tools simplifies installation and maintenance procedures. Furthermore, its resistance to corrosion and wear contributes to a longer service life, reducing the need for frequent replacements ².

Installation Guidelines

Proper installation of the 3279355 Regular Hexagon Nut is crucial for ensuring optimal performance and longevity. Begin by cleaning the mating surfaces to remove any debris or corrosion. Use a torque wrench to tighten the nut to the specified torque setting, which ensures that the fastener is secure without over-tightening, which could damage the threads or the component being fastened. It is also important to periodically check the tightness of the nut, especially in applications subject to vibration, to maintain secure fastening over time ².

Troubleshooting and Maintenance

Common issues with regular hexagon nuts include loosening due to vibration, corrosion, and wear. To troubleshoot these issues, regularly inspect the nuts for signs of corrosion or damage. If a nut appears loose, re-tighten it to the specified torque setting. In cases of severe corrosion or damage, replace the nut to ensure continued reliable performance. Maintaining a clean and dry environment around the fastening area can also help prolong the life of the nut ².

Cummins: Manufacturer 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 producing high-quality, reliable components for the commercial truck industry. The company’s commitment to innovation and customer satisfaction makes it a trusted source for truck components, including the 3279355 Regular Hexagon Nut. Cummins’ extensive product range and global presence ensure that truck operators have access to the parts they need to maintain their vehicles efficiently ².

Compatibility of Cummins Regular Hexagon Nut 3279355

The Cummins Regular Hexagon Nut part number 3279355 is a versatile component designed to fit a variety of Cummins engines. This part is essential for securing various components within the engine assembly, ensuring that parts remain tightly fastened and properly aligned. Below is a detailed breakdown of the engines with which this nut is compatible:

ISB Series Engines

• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB3.9 CM2220 B107
• ISBE CM2150
• ISBE4 CM850

ISM Series Engines

• ISM CM570
• ISM CM570/870
• ISM CM876

L8.9 Series Engines

• L8.9
• L8.9 CM2670 L134C
• L8.9G CMOH2.0 L125B

QSK Series Engines

• QSK45 CM500
• QSK50 CM2150 MCRS
• QSK60 CM500
• QSK60 CM850 MCRS

B5.9 Series Engines

• B5.9 G
• B5.9 GAS PLUS CM556
• C GAS PLUS CM556

ISL9 Series Engines

• ISL9 CM2150 SN
• ISL9.5 CM2880 L138

F4.5 Series Engines

• F4.5 CM2620 F139B

By ensuring that the Regular Hexagon Nut 3279355 is used in these engines, technicians can maintain the integrity and performance of the engine assemblies, providing reliable operation across various applications ².

Role of Part 3279355 Regular Hexagon Nut in Engine Systems

The Part 3279355 Regular Hexagon Nut is integral to the secure assembly and operation of various engine components. Its role can be observed in the following applications:

• Arrangement and Mounting: The nut is used in the arrangement and mounting of components such as the alternator, ensuring that these parts are firmly secured to the engine block or other structural elements.

• Pressure Regulator Valve: In the pressure regulator valve system, the hexagon nut helps in maintaining the integrity of the valve assembly, ensuring consistent pressure regulation within the engine.

• Base Rail and Subbase: When installing base rails or subbases, the nut plays a key role in fastening these components, providing a stable foundation for other engine parts.

• Bushing and Gear Removers: For tools like the bushing remover, camshaft gear remover, and crankshaft gear remover, the nut is often part of the tool’s design, aiding in the secure attachment and removal processes.

• Control Rod and Double End Plain Stud: In control rod assemblies and double end plain stud installations, the nut ensures that these components are tightly fastened, which is essential for the precise operation of engine mechanisms.

• Crankshaft Seal Installer: The nut is utilized in the crankshaft seal installer to secure the seal in place, preventing oil leaks and maintaining the engine’s lubrication system.

• Cylinder Head Lifting Fixture: During cylinder head removal or installation, the nut is employed in the lifting fixture to ensure that the head is securely held in place.

• Drive Components: For drive components such as the alternator and fan, the nut is critical in securing these to the engine, ensuring they operate efficiently without risk of detachment.

• Fuel System Components: In fuel pump lifting fixtures and fuel transfer kits, the nut is used to secure various components, ensuring the fuel system’s integrity and performance.

• Gear Remover and Service Tool Kit: The nut is a common fastener in gear removers and various service tool kits, providing the necessary tension and security during engine maintenance procedures.

• Muffler and Kit Muffler: In the installation of mufflers and kit mufflers, the nut is used to secure the exhaust system components, ensuring they are properly aligned and sealed.

• Refrigerant Compressor Mounting: For refrigerant compressors, the nut is used in the mounting process, ensuring the compressor is securely attached to the engine or frame.

• Leak Test Kit: In leak test kits, the nut is used to secure testing equipment, ensuring accurate and reliable leak detection.

The Part 3279355 Regular Hexagon Nut, through its versatile applications, ensures the secure and efficient operation of numerous engine components, contributing to the overall reliability and performance of the engine system ².

Conclusion

The 3279355 Regular Hexagon Nut is a critical component in the maintenance and operation of commercial trucks, providing reliable fastening solutions that ensure the integrity and safety of truck components. Its design, featuring a six-sided shape and high-quality materials, offers several advantages, including efficient tightening, consistent torque application, and resistance to corrosion and wear. Proper installation and maintenance of this Cummins part are essential for optimal performance and longevity. By understanding its role and benefits, technicians can ensure the secure and efficient operation of various engine components, contributing to the overall reliability and performance of the engine system ².