3903210
Hexagon Flange Nut
Cummins®

The Hexagon Flange Nut, specifically Part #3903210 by Cummins, is a vital component in the maintenance and assembly of commercial trucks. This part is integral to ensuring the secure fastening of various components within the vehicle. Cummins, a renowned manufacturer in the industry, is recognized for its commitment to quality and innovation in diesel engines and related technologies ¹.

Basic Concepts of Hexagon Flange Nuts

A Hexagon Flange Nut is a type of fastener characterized by its hexagonal shape and a flange—a flat, circular plate—attached to one end. This design allows for easier tightening and loosening using a wrench or socket, providing a stable and secure connection. In the automotive industry, flange nuts are commonly used to fasten components that require a high degree of stability and resistance to vibration ².

Role of the 3903210 Hexagon Flange Nut in Truck Operation

This Cummins part plays a specific role in the assembly and maintenance of commercial trucks. It is utilized to secure various components, ensuring structural integrity and stability. By providing a robust fastening solution, this nut helps maintain the alignment and functionality of critical parts within the truck, contributing to overall performance and safety ³.

Key Features

The 3903210 Hexagon Flange Nut is distinguished by several key features. Its hexagonal shape allows for efficient torque application, while the flange design distributes load more evenly, reducing the risk of stripping or loosening. The nut is composed of high-quality materials, ensuring durability and resistance to corrosion. Additionally, its unique attributes enhance performance and longevity in demanding commercial truck applications.

Benefits

Using the 3903210 Hexagon Flange Nut offers several advantages. It provides improved torque distribution, which is crucial for maintaining secure fastenings under varying load conditions. The nut’s resistance to loosening ensures that components remain firmly in place, even under vibration and stress. Furthermore, its enhanced load-bearing capabilities contribute to the overall reliability and performance of the truck.

Troubleshooting and Maintenance

To ensure the longevity and reliable performance of the 3903210 Hexagon Flange Nut, it is important to be aware of common issues such as corrosion or stripping. Regular inspection and maintenance can help identify these problems early. Recommended practices include cleaning the nut and its mating surfaces, applying an appropriate lubricant, and ensuring that torque specifications are followed during installation. These measures help maintain the nut’s integrity and performance over time.

About Cummins

Cummins Inc. is a leader in the commercial vehicle industry, with a rich history of innovation and expertise in diesel engines and related technologies. The company is dedicated to providing high-quality products that meet the demanding needs of commercial truck operators. Cummins’ commitment to quality and innovation is evident in its wide range of components, including the 3903210 Hexagon Flange Nut, which is designed to deliver reliable performance and durability in commercial truck applications ⁴.

Hexagon Flange Nut 3903210 Compatibility with Cummins Engines

The Hexagon Flange Nut 3903210, manufactured by Cummins, is a critical component designed to fit various Cummins engines. This part is essential for securing flanges and ensuring a tight seal in engine systems. Below is a detailed description of its compatibility with the listed engines:

15N CM2380 M104B

The 15N CM2380 M104B engine benefits from the 3903210 Hexagon Flange Nut in its flange assembly, ensuring robust connections and leak-proof seals.

4B3.9, 6B5.9, 6C8.3, B3.3, B4.5, B5.9

These engines, including the 4B3.9, 6B5.9, 6C8.3, B3.3, B4.5, and B5.9, utilize the 3903210 Hexagon Flange Nut for their flange connections. This part is integral to maintaining the structural integrity and operational efficiency of these engines.

B5.9 CM2670 B166C, B5.9 G, B5.9 GAS PLUS CM556

The B5.9 CM2670 B166C, B5.9 G, and B5.9 GAS PLUS CM556 engines all require the 3903210 Hexagon Flange Nut for their flange assemblies. This ensures that the flanges are securely fastened, preventing any potential leaks or failures.

B6.7 CM2670 B153B, B6.7 CM2670 B164C

Both the B6.7 CM2670 B153B and B6.7 CM2670 B164C engines are compatible with the 3903210 Hexagon Flange Nut. This part is crucial for maintaining the flange connections in these engines, ensuring optimal performance and reliability.

C GAS PLUS CM556, C8.3 G

The C GAS PLUS CM556 and C8.3 G engines both utilize the 3903210 Hexagon Flange Nut. This part is essential for securing the flanges in these engines, contributing to their overall durability and efficiency.

F3.8 CM2620 F137B, F4.5 CM2620 F139B

The F3.8 CM2620 F137B and F4.5 CM2620 F139B engines are designed to work with the 3903210 Hexagon Flange Nut. This part ensures that the flanges are properly secured, enhancing the engines’ operational integrity.

G5.9, G5.9 CM558, G8.3, G8.3 CM558, GTA8.3 CM558

The G5.9, G5.9 CM558, G8.3, G8.3 CM558, and GTA8.3 CM558 engines all require the 3903210 Hexagon Flange Nut for their flange connections. This part is vital for maintaining the structural and operational integrity of these engines.

ISB (Chrysler), ISB CM2150, ISB CM550, ISB CM850, ISB/ISD4.5 CM2150 B119

The ISB (Chrysler), ISB CM2150, ISB CM550, ISB CM850, and ISB/ISD4.5 CM2150 B119 engines are compatible with the 3903210 Hexagon Flange Nut. This part is essential for securing the flanges in these engines, ensuring they operate efficiently and reliably.

Role of Part 3903210 Hexagon Flange Nut in Engine Systems

The Part 3903210 Hexagon Flange Nut is integral to the secure assembly and operation of various engine components. It is commonly utilized in the fastening of accessories, ensuring that electrical components are firmly attached and remain stable under operational conditions.

In the aftercooler system, this nut plays a part in securing the air tube bracket, which is essential for maintaining the structural integrity and efficient airflow within the system. Its application extends to the arrangement of the engine lubrication primer, where it ensures that the primer is correctly positioned and operational, contributing to the overall lubrication efficiency of the engine.

The Hexagon Flange Nut is also employed in the attachment of the starting motor mounting, providing a stable and secure base for the starting motor. This is vital for the reliable starting of the engine. Additionally, it is used in the bracket for shipping, ensuring that components are safely secured during transportation.

In the Centinel Valve Kit and Charge Air Bypass Plumbing, the nut is utilized to maintain the integrity of these systems, which are crucial for the regulation of air flow and pressure within the engine. Its role in the compressor and refrigerant connection is to ensure a secure and leak-free connection, which is essential for the efficient operation of the cooling system.

The nut is also found in the air intake cooler and torque converter oil cover, where it ensures these components are securely fastened, contributing to the efficient operation of the engine’s cooling and lubrication systems. In the Electronic Control Module Kit and Exhaust Connection, it provides the necessary stability and security for these components, which are vital for the engine’s electronic management and exhaust system.

Furthermore, the Hexagon Flange Nut is used in the Fuel Control Module Mounting and Alternator Mounting, ensuring these critical components are securely attached and operational. It also plays a role in the Plumbing of the Crankcase Breather, Pump (Raw Water and Vacuum), and Service Kit, where it ensures these systems are securely and efficiently connected.

Lastly, in the Shroud of the Engine Cooling Fan and the Support for Accessory components, the nut ensures that these parts are securely fastened, contributing to the overall stability and efficiency of the engine’s cooling and accessory systems.

Conclusion

The 3903210 Hexagon Flange Nut by Cummins is a critical component in the maintenance and operation of commercial trucks and various Cummins engines. Its design and features ensure secure fastening, stability, and durability, contributing to the overall performance and reliability of the vehicle. Regular maintenance and proper installation practices are essential to maximize the benefits of this part.