3914177
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3914177, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is significant in the maintenance and operation of commercial trucks, providing reliable fastening solutions that contribute to the overall performance and durability of truck components.

Basic Concepts

A Hexagon Flange Head Cap Screw is a type of fastener characterized by its hexagonal head and flange beneath the head. The hexagonal head allows for efficient tightening and loosening using a wrench or socket, while the flange provides a larger bearing surface that distributes the load more evenly, reducing the risk of the screw pulling through the material. In the context of truck components, these screws are used to secure various parts, ensuring they remain firmly in place under operational stresses.

Purpose and Role in Truck Operation

This Cummins part plays a specific role in the operation and maintenance of commercial trucks. It is utilized in areas where secure fastening is required to maintain structural integrity and performance. Common application areas include engine components, chassis parts, and other critical assemblies where vibration and stress are prevalent. The screw helps in maintaining the alignment and stability of these parts, which is vital for the truck’s overall performance.

Key Features

This part boasts several key features that enhance its functionality and durability. Its hexagonal head design allows for straightforward installation and removal using standard tools. The flange characteristic provides additional surface area, which helps in distributing the load and preventing the screw from pulling through the material. The screw is typically made from high-strength materials, ensuring it can withstand the rigors of commercial truck operation. Additionally, it may feature coatings or treatments that enhance corrosion resistance and longevity.

Benefits

Using this part offers several benefits. The design of the screw provides improved fastening security, making it less likely to loosen over time due to vibration. The flange helps in distributing the load more evenly, reducing the stress on the material being fastened. Ease of installation is another advantage, as the hexagonal head allows for efficient tightening with common tools. Furthermore, the screw’s durable material composition and possible corrosion-resistant coatings ensure longevity, even in harsh operating conditions.

Installation and Usage

Proper installation of this part is vital to ensure optimal performance and longevity. It is recommended to use the appropriate torque specifications provided by the manufacturer to avoid over-tightening or under-tightening. Standard wrenches or sockets can be used for installation, and it is advisable to use a torque wrench for precise application of the required torque. Following best practices, such as ensuring the mating surfaces are clean and free of debris, will contribute to the screw’s effective performance.

Troubleshooting and Maintenance

Common issues with this part may include loosening, corrosion, or damage. Regular inspection and maintenance can help identify and address these issues promptly. If loosening is detected, re-tightening to the specified torque is recommended. Corrosion can be mitigated by ensuring the screw is made from or coated with corrosion-resistant materials. Any signs of damage should be addressed by replacing the screw to maintain the integrity of the fastened components.

Cummins Overview

Cummins Inc. is a globally recognized leader in the design, manufacture, and distribution of diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has built a reputation for quality, innovation, and reliability in the commercial truck industry. The company’s extensive product range includes engines, filtration systems, powertrain components, and emission control technologies. Cummins’ commitment to quality is evident in their rigorous manufacturing processes and continuous investment in research and development, ensuring their components meet the demanding requirements of commercial truck applications.

Hexagon Flange Head Cap Screw Part 3914177 Compatibility with Cummins Engines

The Hexagon Flange Head Cap Screw part 3914177, manufactured by Cummins, is designed to fit a variety of Cummins engines. This part is integral for securing components and ensuring the structural integrity of the engine. Below is a detailed breakdown of the engines with which this part is compatible:

Cummins 4 Series Engines

• 4B3.9
• B4.5
• B4.5 CM2350 B129B
• B4.5 RGT

Cummins 5 Series Engines

• B5.9 G
• B5.9 GAS PLUS CM556

Cummins 6 Series Engines

• 6B5.9
• 6C8.3
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125
• B6.7S

Cummins F Series Engines

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102
• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

Cummins ISB/ISD Series Engines

• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104

This part is engineered to meet the stringent requirements of Cummins engines, ensuring reliable performance and durability. It is crucial for maintaining the engine’s assembly and operational integrity.

Role of Part 3914177 Hexagon Flange Head Cap Screw in Engine Systems

The Hexagon Flange Head Cap Screw is instrumental in securing and maintaining the integrity of various engine components. Its application spans across multiple systems, ensuring efficient operation and durability.

Adapter and Front Drive Arrangement

In the adapter and front drive arrangement, the Hexagon Flange Head Cap Screw is used to fasten components securely. This ensures that the drive arrangement operates smoothly without any misalignment, which is essential for the efficient transfer of power from the engine to other mechanical parts.

Oil Fill and Turbocharger Arrangement

Within the oil fill and turbocharger arrangement, this screw plays a significant role in maintaining the structural integrity of the oil fill cap and the turbocharger housing. Proper fastening is vital to prevent oil leaks and ensure the turbocharger operates under optimal conditions, enhancing engine performance.

Block, Cylinder, and Breather

The screw is also employed in the block, cylinder, and breather components. It secures the breather system, which is responsible for releasing pressure from the crankcase. This helps in maintaining a stable environment within the engine block and cylinder, crucial for consistent engine operation.

Crankcase and Compressor

In the crankcase and compressor, the Hexagon Flange Head Cap Screw ensures that all components are tightly secured. This is particularly important in the compressor, where precise fitting is necessary to maintain the efficiency of the refrigerant system.

Cooler, Fuel, and Cover

The screw is utilized in the cooler, fuel, and cover components to ensure that these parts remain firmly in place. This is essential for the cooler and fuel systems, where any looseness can lead to inefficiencies or even failures in the engine’s cooling and fuel delivery systems.

Hand Hole, Drive, and Fan

In the hand hole, drive, and fan components, the screw ensures that access points and drive mechanisms are securely fastened. This is important for maintenance purposes and for the reliable operation of the fan, which is critical for engine cooling.

Exchanger, Heat, and Filter

The screw is also crucial in the exchanger, heat, and filter components. It ensures that these systems are properly assembled, which is vital for the efficient exchange of heat and the effective filtration of contaminants from the engine’s systems.

Oil Bypass, Fuel Pump, and Housing

In the oil bypass, fuel pump, and housing components, the screw ensures that these critical parts are securely mounted. This is essential for the reliable operation of the fuel pump and the effective bypassing of oil when necessary.

Rear Gear, Intercooler, and Module

The screw is used in the rear gear, intercooler, and module to ensure that these components are firmly in place. This is particularly important in the intercooler, where efficient cooling of the air charge is essential for engine performance.

Engine Control Mounting and Alternator

In the engine control mounting and alternator, the screw ensures that these components are securely attached to the engine. This is vital for the reliable operation of the alternator and the precise control of engine functions.

Engine Control Module and Plumbing

The screw is also used in the engine control module and plumbing components to ensure that these systems are properly assembled. This is crucial for the effective control of engine operations and the reliable flow of fluids within the engine’s systems.

Aftercooler Water, Air Cleaner, and Primer

In the aftercooler water, air cleaner, and primer components, the screw ensures that these parts are securely fastened. This is important for the efficient cooling of the air charge, the effective cleaning of intake air, and the reliable priming of the engine.

Engine Lubricating Pump and Fuel Recirculation

The screw is utilized in the engine lubricating pump and fuel recirculation components to ensure that these systems are properly assembled. This is essential for the effective lubrication of engine parts and the reliable recirculation of fuel.

Exhaust and Support

In the exhaust and support components, the screw ensures that these parts are securely mounted. This is vital for the efficient expulsion of exhaust gases and the reliable support of engine components.

Front Engine System and Auxiliary Cooling

The screw is also used in the front engine system and auxiliary cooling components to ensure that these systems are properly assembled. This is crucial for the efficient operation of the front engine components and the effective cooling of the engine.

Engine Cooling System

Finally, in the engine cooling system, the screw ensures that all components are securely fastened. This is essential for the reliable operation of the cooling system, which is critical for maintaining optimal engine temperature and performance.

Conclusion

The 3914177 Hexagon Flange Head Cap Screw is a vital component in the maintenance and operation of commercial trucks, particularly those equipped with Cummins engines. Its design, featuring a hexagonal head and flange, ensures efficient installation, secure fastening, and even load distribution. The screw’s durable material composition and potential corrosion-resistant coatings contribute to its longevity and reliability in harsh operating conditions. Proper installation and maintenance practices are essential to maximize the performance and lifespan of this part. Its compatibility with a wide range of Cummins engines underscores its importance in ensuring the structural integrity and operational efficiency of various engine components.