3929777
Hexagon Flange Nut
Cummins®

The Hexagon Flange Nut, specifically Part #3929777 by Cummins, is a vital component in the realm of commercial trucks. Cummins, a renowned manufacturer in the industry, produces this nut to meet the demanding requirements of heavy-duty applications. This part is integral to the fastening systems used in commercial trucks, ensuring secure and reliable connections across various components.

Basic Concepts of Hexagon Flange Nuts

A Hexagon Flange Nut is a type of fastener characterized by its hexagonal shape and a flange at one end. The hexagonal shape allows for efficient tightening and loosening using standard tools, while the flange provides additional surface area to distribute the load and prevent the nut from rotating during operation. In fastening applications, these nuts play a role in securing components together, ensuring stability and integrity under various operational conditions ¹.

Role of the 3929777 Hexagon Flange Nut in Truck Operation

The 3929777 Hexagon Flange Nut 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, such as in the attachment of critical components to the truck’s frame or engine. Its design ensures that connections remain tight and secure, even under the stress of heavy loads and vibrations typical in truck operations ².

Key Features of the 3929777 Hexagon Flange Nut

The 3929777 Hexagon Flange Nut features a hexagonal shape that facilitates easy installation and removal using common tools. The flange design enhances its ability to resist rotation, providing a more secure fastening solution. Additionally, the nut is crafted from high-quality materials, ensuring durability and resistance to corrosion, which is vital for components exposed to harsh environmental conditions ³.

Benefits of Using the 3929777 Hexagon Flange Nut

Utilizing the 3929777 Hexagon Flange Nut offers several advantages. Its design contributes to enhanced fastening security, making it less likely for connections to loosen over time. The flange provides additional resistance to vibration, a common issue in truck operations. Furthermore, the ease of installation ensures that maintenance and repair procedures can be conducted efficiently, minimizing downtime.

Installation and Usage Guidelines

For the proper installation of the 3929777 Hexagon Flange Nut, it is important to follow specific guidelines. Begin by ensuring the mating surface is clean and free of debris. Use the appropriate tool to tighten the nut to the recommended torque specification, which ensures a secure connection without over-tightening. Regular checks should be performed to ensure the nut remains secure during operation.

Troubleshooting Common Issues

Common issues with the 3929777 Hexagon Flange Nut may include loosening over time or damage due to corrosion. To address these issues, regular inspections are recommended to identify any signs of wear or corrosion. If loosening is detected, re-tightening to the specified torque is necessary. In cases of significant corrosion or damage, replacement of the nut may be required to maintain the integrity of the fastening.

Maintenance Tips

To ensure the longevity and performance of the 3929777 Hexagon Flange Nut, regular maintenance is key. This includes periodic inspections for signs of wear, corrosion, or loosening. Cleaning the nut and its mating surface can prevent the buildup of debris that may affect its performance. Following the manufacturer’s guidelines for torque specifications during installation and re-tightening will help maintain secure fastenings.

Cummins: Manufacturer Overview

Cummins is a well-established manufacturer with a strong reputation in the industry for producing high-quality truck components. With a history of innovation and commitment to quality, Cummins continues to be a leader in providing reliable and durable parts for commercial trucks. Their focus on research and development ensures that their products, including the 3929777 Hexagon Flange Nut, meet the evolving needs of the trucking industry.

Cummins Engine Compatibility with Hexagon Flange Nut Part 3929777

The Cummins Hexagon Flange Nut part 3929777 is a versatile component designed to fit a variety of Cummins engines. This part is integral to the assembly and maintenance of these engines, ensuring secure connections and reliable performance. Below is a detailed breakdown of the engines that are compatible with this specific flange nut.

15N Series Engines

• 15N CM2380 M104B
• B4.5 CM2350 B129B
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• F3.8 CM2350 F120B
• F3.8 CM2620 F137B
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

4B and 6B Series Engines

• 4B3.9
• 6B5.9

D4.0 Series Engines

• D4.0 CM2620 D103B

F2.8 and F3.8 Series Engines

• F2.8 CM2620 F135B
• F3.8 CM2620 F137B
• F3.8 CM2350 F120B

ISB Series Engines

• ISB (Chrysler)
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB4.5 CM2350 B104
• ISF2.8 CM2220 F117
• ISF2.8 CM2220 F129
• ISF3.8 CM2220 AN

ISBE Series Engines

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

ISC Series Engines

• ISC CM850

ISD4.5 Series Engines

• ISD4.5 CM2220 D108

ISF2.8 Series Engines

• ISF2.8 CM2220 F117
• ISF2.8 CM2220 F129

This flange nut is engineered to meet the stringent requirements of Cummins engines, ensuring durability and precision in various operating conditions. Its compatibility across multiple engine series highlights its versatility and importance in maintaining the integrity of these engines.

Role of Part 3929777 Hexagon Flange Nut in Engine Systems

The part 3929777 Hexagon Flange Nut is integral to the secure assembly and operation of various engine components. Its application spans across multiple systems, ensuring stability and efficiency.

Air Intake Manifold Arrangement

In the air intake manifold arrangement, the Hexagon Flange Nut is used to fasten components securely. This ensures that the manifold remains intact under varying engine loads and temperatures, maintaining optimal airflow to the cylinders.

Charge Air Bypass Arrangement

Within the charge air bypass arrangement, the nut plays a role in securing bypass valves and pipes. This is essential for regulating airflow and pressure, which is vital for engine performance and efficiency.

Compressor Air Inlet Arrangement

At the compressor air inlet, the Hexagon Flange Nut is employed to secure the inlet housing and associated components. This ensures a leak-free connection, which is necessary for maintaining the compressor’s efficiency and durability.

Heat Shield Arrangement

In the heat shield arrangement, the nut is used to attach heat shields to various engine components. This helps in managing thermal loads and protecting nearby parts from excessive heat, thereby enhancing engine longevity.

Turbocharger and Auxiliary Cooling Plumbing Connection

For the turbocharger and auxiliary cooling plumbing connections, the Hexagon Flange Nut ensures that all pipes and fittings are securely fastened. This is important for maintaining the integrity of the cooling system and turbocharger operation.

Air Intake and Air Transfer Connections

In the air intake and air transfer connections, the nut is utilized to secure intake and transfer pipes. This ensures a consistent and uninterrupted airflow, which is critical for engine performance.

Exhaust Outlet and Catalytic Converter

At the exhaust outlet and catalytic converter, the Hexagon Flange Nut is used to secure the exhaust manifold and converter to the engine. This ensures that exhaust gases are efficiently directed away from the engine, reducing emissions and enhancing performance.

Cylinder Block and Doser Fluid Drive

In the cylinder block and doser fluid drive, the nut is employed to secure various mounting points and fluid lines. This ensures that the doser system operates correctly, contributing to emissions control.

Rear Gear Train Accessory and Air Compressor

For the rear gear train accessory and air compressor, the Hexagon Flange Nut is used to secure mounting brackets and compressor housing. This ensures that these components remain stable and operate efficiently.

Harness and Electronic Control Module Wiring

In the harness and electronic control module wiring, the nut is utilized to secure wiring harnesses and control modules. This ensures that electrical connections remain intact, which is vital for engine management and diagnostics.

Auxiliary Cooling and Charge Air Bypass Plumbing

In the auxiliary cooling and charge air bypass plumbing, the Hexagon Flange Nut is used to secure various pipes and fittings. This ensures that cooling and bypass systems operate efficiently, contributing to overall engine performance.

Exhaust Recirculation Air and Heat Shield

For the exhaust recirculation air and heat shield, the nut is employed to secure recirculation valves and heat shields. This ensures that these systems function correctly, aiding in emissions control and thermal management.

Turbocharger Arrangement and Gasket Kit

In the turbocharger arrangement and gasket kit, the Hexagon Flange Nut is used to secure turbocharger components and gaskets. This ensures that the turbocharger operates efficiently, enhancing engine power and performance.

Conclusion

The 3929777 Hexagon Flange Nut by Cummins is a critical component in the maintenance and operation of commercial trucks and engines. Its design, featuring a hexagonal shape and flange, ensures secure and reliable fastening across various applications. The nut’s compatibility with a wide range of Cummins engines underscores its versatility and importance in the industry. Regular maintenance and proper installation are essential to maximize its performance and longevity.