3925437
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3925437, is a component manufactured by Cummins. This screw is significant in the realm of commercial trucks due to its robust design and reliable performance. Cummins, a well-established name in the automotive industry, ensures that this part meets high standards of quality and functionality ¹.

Basic Concepts

The Hexagon Flange Head Cap Screw is designed with a hexagonal flange head, which provides a larger surface area for distribution of clamping force. This design allows for efficient torque application and reduces the risk of the screw head stripping during installation. In the automotive industry, such screws are commonly used for fastening various components, ensuring they remain securely in place under operational stress ².

Purpose and Role in Truck Operation

The 3925437 Hexagon Flange Head Cap Screw plays a specific role in commercial truck operations by securing critical components that are subject to vibration and stress. Its design ensures that parts remain firmly attached, contributing to the overall functionality and performance of the vehicle. By maintaining secure fastenings, this screw helps in preventing component failure and ensuring the truck operates smoothly ³.

Key Features

The primary characteristics of the 3925437 Hexagon Flange Head Cap Screw include its hexagonal flange head, which offers enhanced grip and torque application. The screw is typically made from high-strength materials to withstand the rigors of commercial truck use. Its thread specifications are designed to provide a strong, secure fit, ensuring that fastened components remain in place under various operational conditions.

Benefits

The 3925437 Hexagon Flange Head Cap Screw offers several advantages. Its durable construction ensures long-lasting performance, even in demanding environments. The screw’s design also provides corrosion resistance, which is vital for components exposed to the elements. Additionally, the ease of installation, thanks to its hexagonal flange head, allows for quick and efficient fastening, reducing downtime during maintenance procedures.

Installation and Usage

Proper installation of the 3925437 Hexagon Flange Head Cap Screw involves several steps. First, ensure the mating surfaces are clean and free of debris. Use a torque wrench to apply the recommended torque settings, which are specified by the manufacturer to ensure a secure fit without over-tightening. It is also advisable to follow best practices such as using a thread locker for additional security, especially in applications where vibration is a concern.

Troubleshooting and Maintenance

Common issues with the 3925437 Hexagon Flange Head Cap Screw may include loosening due to vibration or corrosion over time. Regular inspections can help identify these problems early. Maintenance practices such as re-torquing screws at recommended intervals and applying corrosion-resistant coatings can prolong the screw’s lifespan. If corrosion is detected, cleaning the affected area and reapplying a protective coating is recommended.

Safety Considerations

When working with the 3925437 Hexagon Flange Head Cap Screw, it is important to follow safety precautions. Proper handling involves using the correct tools to avoid damage to the screw or surrounding components. Storage should be in a dry, corrosion-resistant environment to maintain the screw’s integrity. Disposal should comply with local regulations to ensure environmental safety.

Cummins 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 quality and innovation in the automotive industry. Their product offerings include a wide range of components and systems designed to enhance the performance and reliability of commercial vehicles.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw Part 3925437

The Cummins Hexagon Flange Head Cap Screw part number 3925437 is a versatile component designed to fit a variety of Cummins engines. This screw is integral in securing various parts and assemblies within the engine, ensuring structural integrity and operational efficiency. Below is a detailed look at the compatibility of this screw with different Cummins engines.

15N CM2380 M104B

The 15N CM2380 M104B engine benefits from the use of the 3925437 screw in several critical areas, including securing the cylinder head cover and other ancillary components.

6C8.3, B3.3, B5.9 GAS PLUS CM556, B6.7 CM2350 B135B

These engines, including the 6C8.3, B3.3, B5.9 GAS PLUS CM556, and B6.7 CM2350 B135B, utilize the 3925437 screw in various applications. It is particularly useful in fastening parts that require a secure and reliable connection, such as the intake manifold and exhaust system components.

B6.7 CM2670 B164C, B6.7S, C GAS PLUS CM556, C8.3 G

The B6.7 CM2670 B164C, B6.7S, C GAS PLUS CM556, and C8.3 G engines also incorporate the 3925437 screw in their design. This screw is essential for maintaining the structural integrity of the engine’s internal and external components, including the engine block and various covers.

ISB Series

The ISB series engines, which include the ISB CM2150, ISB CM550, ISB CM850, ISB3.9 CM2220 B107, ISB5.9 CM2880 B127, ISB6.7 CM2250, ISB6.7 CM2350 B101, all utilize the 3925437 screw. This screw is critical in securing the engine’s cylinder heads, intake manifolds, and other critical components, ensuring the engine operates smoothly and efficiently.

ISBE Series

The ISBE series engines, such as the ISBE CM2150, ISBE CM800, and ISBE4 CM850, also rely on the 3925437 screw. This screw is used in securing various parts of the engine, including the cylinder heads and other critical assemblies.

ISC Series

The ISC series engines, including the ISC CM2150, ISC CM554, ISC CM850, and ISC8.3 CM2250, incorporate the 3925437 screw in their design. This screw is essential for maintaining the structural integrity of the engine’s components, such as the cylinder heads and intake manifolds.

ISF Series

The ISF series engines, such as the ISF2.8 CM2220 F117 and ISF2.8 CM2220 F129, also use the 3925437 screw. This screw is critical in securing various parts of the engine, including the cylinder heads and other critical assemblies.

Role of Part 3925437 Hexagon Flange Head Cap Screw in Engine Systems

The Hexagon Flange Head Cap Screw, identified by part number 3925437, is integral to the assembly and maintenance of various engine components. Its robust design ensures secure fastening in high-stress environments, making it suitable for several applications within engine systems.

Aftercooler

In aftercooler systems, the Hexagon Flange Head Cap Screw is used to secure components that facilitate the cooling of compressed air. This ensures that the connections remain tight, preventing leaks and maintaining efficiency.

Air Compressor

For air compressors, this screw plays a role in attaching critical components such as the compressor housing and mounting brackets. Its flange head provides additional surface area for a more secure fit, which is essential for the compressor’s durability and performance.

Alternator Mounting

When mounting alternators, the Hexagon Flange Head Cap Screw ensures a stable and vibration-resistant connection to the engine block. This is vital for consistent electrical output and longevity of the alternator.

Camshaft Timing Kit

In camshaft timing kits, these screws are employed to secure timing gears and sprockets. Accurate timing is essential for engine performance, and the secure fastening provided by this screw helps maintain precise alignment.

Crankcase Breather

For crankcase breather systems, the screw is used to attach the breather housing to the engine block. This connection is important for venting crankcase gases and maintaining proper pressure within the crankcase.

Crankshaft Pulley

The Hexagon Flange Head Cap Screw is often used in the attachment of crankshaft pulleys. This ensures that the pulley remains firmly in place, which is critical for the operation of accessories driven by the crankshaft.

Cylinder Block

In cylinder block assemblies, these screws are used to secure various components such as sensor brackets and mounting plates. This helps in maintaining the structural integrity of the engine block.

Fuel Filter Location

When installing fuel filters, the screw is used to secure the filter housing to the engine or frame. This ensures that the filter remains in place and operates efficiently.

Fuel Plumbing

In fuel plumbing systems, the screw is utilized to attach fuel lines and fittings. Secure connections are essential to prevent fuel leaks and ensure consistent fuel delivery.

Idler Gear

For idler gears in timing systems, the screw is used to mount the gear housing. This ensures that the gear operates smoothly and maintains proper tension in the timing belt or chain.

Kit, 50DN Service

In service kits, such as the 50DN service kit, these screws are included for various fastening applications. They provide a reliable means to secure new or replacement parts during maintenance procedures.

Kit, Repto

Repto kits often require secure fastening of components, and the Hexagon Flange Head Cap Screw is ideal for this purpose. It ensures that all parts are tightly connected, enhancing the kit’s performance and durability.

Leak Test Kit

During leak testing, these screws are used to secure testing equipment to the engine. This ensures that the test apparatus remains in place and provides accurate readings.

Lubricating Oil Pump

In lubricating oil pump assemblies, the screw is used to attach the pump housing to the engine block. This secure connection is essential for the pump’s operation and the overall lubrication system.

Motor Generator System

For motor generator systems, these screws are used to mount the generator to the engine or frame. This ensures a stable and reliable connection, which is crucial for the system’s efficiency.

Muffler

In exhaust systems, the screw is used to attach the muffler to the exhaust pipe. This secure connection prevents vibrations and ensures that the muffler operates effectively.

Oil Cooler Water Plumbing

For oil cooler water plumbing, these screws are used to secure the cooler to the engine or frame. This ensures that the cooler remains in place and functions correctly.

Piston Assembly Replacer

When replacing piston assemblies, the screw is used to secure new components in place. This ensures that the assembly is tightly connected, which is essential for engine performance.

Priming Pump

In priming pump systems, the screw is used to attach the pump to the engine or fuel system. This secure connection ensures that the pump operates efficiently.

Refrigerant Compressor

For refrigerant compressors, these screws are used to mount the compressor to the engine or frame. This ensures a stable and secure connection, which is vital for the compressor’s performance.

Replacer Plate

When using replacer plates in engine systems, the screw is used to secure the plate in place. This ensures that the plate remains firmly attached, providing a stable base for other components.

Starting Motor Mounting Attachment

For starting motor attachments, the screw is used to secure the motor to the engine block. This ensures that the motor remains in place and operates reliably.

Thermostat Housing

In thermostat housing assemblies, these screws are used to attach the housing to the engine block. This secure connection is essential for maintaining proper coolant flow and engine temperature.

Water Inlet Connection

For water inlet connections, the screw is used to secure the inlet to the engine block. This ensures that the connection remains tight, preventing leaks and maintaining efficient coolant flow.

Water Pump

In water pump assemblies, the screw is used to attach the pump to the engine block. This secure connection is crucial for the pump’s operation and the overall cooling system.

Conclusion

The 3925437 Hexagon Flange Head Cap Screw is a critical component in the maintenance and operation of Cummins engines. Its robust design, corrosion resistance, and ease of installation make it an essential part for securing various engine components, ensuring the engine operates efficiently and reliably.