3902662
Hexagon Flange Nut
Cummins®

Introduction

The Cummins 3902662 Hexagon Flange Nut is a specialized fastener designed for use in commercial trucks. Its primary purpose is to secure various components and assemblies within the truck’s engine and chassis systems. This nut is engineered to provide a reliable and durable fastening solution, ensuring that critical parts remain securely in place under the demanding conditions encountered in commercial trucking operations.

Basic Concepts of Hexagon Flange Nuts

A Hexagon Flange Nut is a type of fastener characterized by its hexagonal shape and the presence of a flange—a flat, circular plate—attached to one end. The hexagonal shape allows for easy tightening and loosening using standard tools, such as wrenches or sockets. The flange serves multiple functions: it distributes the clamping force more evenly across the fastened surface, reduces the risk of the nut loosening due to vibration, and provides a larger bearing surface that can help prevent damage to the fastened material. In fastening applications, these nuts are commonly used to secure bolts in place, ensuring that components remain firmly attached ¹.

Role in Truck Operation

In the operation of a truck, the 3902662 Hexagon Flange Nut plays a significant role by securing various components and assemblies. It is often used in applications where vibration and dynamic loads are present, such as in the engine compartment or chassis. By providing a secure attachment point, this nut helps maintain the integrity of the truck’s structure and ensures that critical components function as intended. Its design allows it to withstand the rigors of commercial trucking, including exposure to harsh environments and heavy loads ².

Key Features

The Cummins 3902662 Hexagon Flange Nut features several key characteristics that make it suitable for its intended applications. Its hexagonal shape allows for efficient tightening and loosening, ensuring that it can be easily installed and removed as needed. The flange design provides additional security by distributing clamping force more evenly and reducing the likelihood of loosening due to vibration. Additionally, the nut is made from high-quality materials that offer excellent resistance to corrosion and wear, ensuring longevity and reliable performance in demanding conditions ³.

Benefits

The Cummins 3902662 Hexagon Flange Nut offers several benefits that contribute to its effectiveness in commercial truck applications. Its design enhances security by providing a stable and reliable fastening solution, even in environments where vibration is a concern. The flange also contributes to resistance against loosening, helping to maintain the integrity of fastened components over time. Furthermore, the nut’s ease of installation and removal simplifies maintenance procedures, allowing for quick and efficient servicing when needed.

Troubleshooting and Maintenance

To ensure the longevity and performance of the Cummins 3902662 Hexagon Flange Nut, it is important to address common issues such as loosening or corrosion. Regular inspections should be conducted to check for signs of wear or damage, and any loose nuts should be tightened to the manufacturer’s specified torque settings. In cases where corrosion is present, it may be necessary to replace the nut to prevent further degradation and ensure reliable fastening. Additionally, applying an appropriate anti-seize compound during installation can help protect against corrosion and facilitate easier removal in the future.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and aftermarket parts. With a history dating back to 1919, Cummins has established itself as a trusted provider of reliable and innovative products for the commercial truck industry. The company’s commitment to quality and performance is evident in its extensive lineup of components, including the Cummins 3902662 Hexagon Flange Nut, which is designed to meet the demanding requirements of commercial trucking operations.

Cummins Engine Compatibility with Hexagon Flange Nut Part 3902662

The Hexagon Flange Nut part 3902662, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is essential for securing components in the engine assembly, ensuring proper alignment and stability. Below is a detailed description of the engines with which this part is compatible.

Cummins Engines Compatible with Part 3902662

• 15N CM2380 M104B
• 4B3.9
• 6B5.9
• 6C8.3
• B3.3
• B3.9 G
• B4.5
• B4.5 CM2350 B129B
• B4.5 RGT
• B5.6 CM2670 B152B
• B5.9 CM2670 B166C
• B5.9 G
• B5.9 GAS PLUS CM556
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125
• C GAS PLUS CM556
• C8.3 G
• D4.0 CM2620 D103B
• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

Grouping of Compatible Engines

• B Series Engines:

  • B3.3
  • B3.9
  • B3.9 G
  • B4.5
  • B4.5 CM2350 B129B
  • B4.5 RGT
  • B5.6 CM2670 B152B
  • B5.9 CM2670 B166C
  • B5.9 G
  • B5.9 GAS PLUS CM556
  • B6.7 CM2350 B135B
  • B6.7 CM2670 B153B
  • B6.7 CM2670 B164C
  • B6.7 G CMOH6.0 B125

• F Series Engines:

  • F3.8 CM2350 F120B
  • F3.8 CM2350 F128C
  • F3.8 CM2620 F137B
  • F4.5 CM2620 F139B
  • F4.5 CM2620 F141C

• Other Series Engines:

  • 15N CM2380 M104B
  • 4B3.9
  • 6B5.9
  • 6C8.3
  • C GAS PLUS CM556
  • C8.3 G
  • D4.0 CM2620 D103B

This comprehensive list ensures that users can identify the specific engines that are compatible with the Hexagon Flange Nut part 3902662, facilitating accurate part selection and installation.

Role of Part 3902662 Hexagon Flange Nut in Engine Systems

The Part 3902662 Hexagon Flange Nut is instrumental in securing and maintaining the integrity of various engine components. Its application spans across multiple systems, ensuring that each part functions optimally and remains securely in place.

Air Cleaner Kit

In the air cleaner kit, the Hexagon Flange Nut is used to fasten the air cleaner housing to the engine block or intake manifold. This secure attachment ensures that the air intake system remains airtight, preventing unfiltered air from entering the engine.

Air Compressor

For the air compressor, the nut is employed to attach the compressor to its mounting bracket. This secure fitting is essential for the compressor’s stable operation and to prevent vibrations that could lead to component failure.

Auxiliary Cooling System

Within the auxiliary cooling system, the Hexagon Flange Nut is utilized to mount the additional cooling fans and radiators. This ensures that the cooling components are firmly attached and can operate efficiently to manage engine temperatures.

Belt Tensioner Bracket

The nut plays a role in attaching the belt tensioner bracket to the engine block. Proper tensioning of the belts is vital for the efficient operation of accessories like the alternator, water pump, and air conditioning compressor.

Cabin Heater Plumbing

In the cabin heater plumbing, the Hexagon Flange Nut is used to secure the hoses and fittings that connect the engine’s cooling system to the cabin heater core. This ensures a leak-free connection, maintaining the effectiveness of the heating system.

Compressor Air Inlet Arrangement

For the compressor air inlet arrangement, the nut is used to secure the inlet piping to the compressor housing. This ensures a secure and leak-free connection, which is essential for the compressor’s performance.

Crankcase Breather

The Hexagon Flange Nut is employed in the crankcase breather system to attach the breather hoses to the engine block. This secure fitting helps maintain proper ventilation of the crankcase, preventing the buildup of pressure and contaminants.

Engine Installation Kit

In the engine installation kit, the nut is used to secure the engine to the vehicle’s frame or mounting points. This ensures that the engine is firmly attached, reducing the risk of movement or misalignment during operation.

Exhaust Riser Kit

For the exhaust riser kit, the Hexagon Flange Nut is used to attach the riser to the engine block. This secure connection ensures that the exhaust system remains intact, preventing leaks and maintaining efficient exhaust flow.

Fan Drive

In the fan drive system, the nut is used to attach the fan to the water pump or electric motor. This ensures that the fan operates smoothly and efficiently to cool the engine.

Fuel Cooler

The Hexagon Flange Nut is utilized in the fuel cooler to secure the cooler to its mounting bracket and to attach the fuel lines. This ensures a stable and leak-free connection, maintaining the integrity of the fuel system.

Fuel Filter Location

At the fuel filter location, the nut is used to secure the fuel filter housing to the engine or frame. This ensures that the filter remains in place and operates effectively to clean the fuel before it reaches the engine.

Fuel Shutoff Valve

For the fuel shutoff valve, the Hexagon Flange Nut is used to attach the valve to the fuel line. This secure fitting ensures that the valve can be operated reliably to control the flow of fuel.

Heat Exchanger

In the heat exchanger, the nut is used to secure the exchanger to its mounting points and to attach the fluid lines. This ensures a stable and leak-free connection, maintaining the efficiency of the heat exchange process.

Intercooler Water Plumbing

For the intercooler water plumbing, the Hexagon Flange Nut is used to secure the water lines and fittings. This ensures a leak-free connection, maintaining the effectiveness of the intercooler in cooling the compressed air.

Lubricating Oil Filter

The nut is used to secure the lubricating oil filter to the engine block. This ensures that the filter is firmly attached and can effectively clean the oil before it circulates through the engine.

Lubricating Oil Pump

In the lubricating oil pump, the Hexagon Flange Nut is used to attach the pump to the engine block. This secure fitting ensures that the pump operates efficiently to supply oil to the engine’s moving parts.

Oil Tube Bracket

The nut is employed to secure the oil tube bracket to the engine or frame. This ensures that the oil tubes are firmly attached and can deliver oil to the necessary components without leaks.

Refrigerant Compressor

For the refrigerant compressor, the Hexagon Flange Nut is used to attach the compressor to its mounting points. This secure fitting ensures that the compressor operates smoothly and efficiently.

Starting Motor Mounting Attachment

In the starting motor mounting attachment, the nut is used to secure the starter motor to the engine block. This ensures that the starter motor is firmly attached and can reliably start the engine.

Turbocharger Air Filter Location

At the turbocharger air filter location, the Hexagon Flange Nut is used to secure the air filter housing to the turbocharger. This ensures that the filter is firmly attached and can effectively clean the air before it enters the turbocharger.

Turbocharger Gasket Kit

The nut is used in the turbocharger gasket kit to secure the turbocharger to the engine block or exhaust manifold. This ensures a leak-free connection, maintaining the efficiency of the turbocharger.

Water Outlet Connection

For the water outlet connection, the Hexagon Flange Nut is used to secure the outlet to the engine block. This ensures a leak-free connection, maintaining the integrity of the cooling system.

Water Pump Drive

In the water pump drive system, the nut is used to attach the water pump to the engine block. This ensures that the pump is firmly attached and can operate efficiently to circulate coolant through the engine.

Conclusion

The Cummins 3902662 Hexagon Flange Nut is a critical component in the maintenance and operation of commercial trucks. Its design and features make it an ideal fastening solution for various engine and chassis applications, ensuring reliability and durability under demanding conditions. Regular maintenance and proper installation are essential to maximize the performance and longevity of this part.