3927213
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3927213, is a component manufactured by Cummins, a well-established name in the heavy-duty truck industry. This screw is integral to the assembly and maintenance of heavy-duty trucks, ensuring that various components remain securely fastened under demanding operational conditions.

Basic Concepts

Hexagon Flange Head Cap Screws are designed with a hexagonal head and a flanged base. The hexagonal head allows for efficient torque application using standard tools, while the flange distributes load and prevents the screw from sinking into the material. These screws are typically made from high-strength materials such as alloy steel, which provides the necessary durability and resistance to wear and tear. In the automotive industry, they are commonly used to secure critical components that require both strength and stability ¹.

Purpose and Role in Truck Operation

The 3927213 Hexagon Flange Head Cap Screw plays a significant role in the operation of a truck by securing various components, thereby ensuring structural integrity. It is often used in applications where vibrations and dynamic loads are common, such as in the engine compartment or chassis. By providing a robust fastening solution, this screw helps maintain the alignment and functionality of critical parts, contributing to the overall reliability of the vehicle ².

Key Features

The 3927213 Hexagon Flange Head Cap Screw features a hexagonal head that allows for easy and precise tightening using common tools. The flange at the base of the screw serves multiple purposes: it helps distribute the load more evenly across the surface, reduces the risk of the screw head sinking into softer materials, and provides additional torque resistance. These features enhance the screw’s performance and reliability in heavy-duty applications.

Benefits

Using the 3927213 Hexagon Flange Head Cap Screw offers several advantages. Its design provides improved fastening strength, making it less likely to loosen over time compared to standard screws. The material used in its construction ensures durability under heavy-duty conditions, reducing the need for frequent replacements. Additionally, the flange feature adds an extra layer of security, helping to maintain the integrity of the fastened components.

Installation Guidelines

To ensure optimal performance and longevity, the 3927213 Hexagon Flange Head Cap Screw should be installed following these guidelines:

1. Clean the installation surface to remove any debris or contaminants.
2. Align the screw with the designated hole.
3. Use a torque wrench to tighten the screw to the manufacturer’s specified torque settings.
4. Check for proper seating and ensure the flange is flush with the surface.

Troubleshooting and Maintenance

Common issues with the 3927213 Hexagon Flange Head Cap Screw may include corrosion or loosening. Regular inspection can help identify these problems early. To maintain the screw’s performance:

1. Clean the screw and surrounding area periodically to prevent corrosion.
2. Check for signs of loosening and re-tighten as necessary.
3. Replace the screw if it shows signs of wear or damage.

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 reliability in the heavy-duty truck industry. Their product range includes a variety of components designed to meet the demanding requirements of commercial vehicles, ensuring that each part, including the 3927213 Hexagon Flange Head Cap Screw, contributes to the overall performance and durability of the truck ³.

Compatibility with Cummins Engines

The Hexagon Flange Head Cap Screw part number 3927213, manufactured by Cummins, is a versatile component that fits a variety of Cummins engines. This screw is designed to secure various parts within the engine assembly, ensuring structural integrity and proper functioning. Below is a detailed breakdown of the engines with which this screw is compatible:

Cummins ISB Series

• ISB (Chrysler)
• ISB CM2150
• ISB CM850
• ISB5.9 CM2880 B149
• ISB5.9G CM2180
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118
• ISBE CM800

Cummins ISX Series

• ISX12 CM2350 X102
• ISX12 G CM2180 EJ

Cummins QSB Series

• QSB4.5 CM2250 EC
• QSB4.5 CM850 (CM2850)
• QSB6.7 CM2250

Cummins L Series

• L GAS PLUS CM556
• L8.9G CMOH2.0 L125B

Cummins C Series

• C GAS PLUS CM556
• C8.3 G

Cummins B Series

• B6.7 G CMOH6.0 B125

Cummins D Series

• D4.0 CM2620 D103B

Cummins F Series

• F3.8 CM2620 F137B
• F4.5 CM2620 F139B

Cummins M Series

• 15N CM2380 M104B

Cummins 4B3.9

• 4B3.9

This screw is integral to the assembly and maintenance of these engines, providing a reliable fastening solution that meets the rigorous demands of heavy-duty engine operations.

Usage in Engine Systems

The Hexagon Flange Head Cap Screw, identified by part number 3927213, is a versatile fastener utilized in various engine systems to ensure secure and reliable connections. Its robust design and flanged head provide enhanced stability and resistance to loosening, making it suitable for high-stress applications.

Air Cleaner and Air Cleaner Bracket

In the air cleaner assembly, the Hexagon Flange Head Cap Screw is employed to firmly attach the air cleaner bracket to the engine frame. This secure attachment ensures that the air cleaner remains stable during engine operation, maintaining efficient airflow and filtration.

Air Intake Connection and Air Intake Manifold

For the air intake connection and manifold, this screw plays a pivotal role in securing the intake components to the engine block. Proper fastening is essential to prevent air leaks, which could otherwise disrupt the air-fuel mixture and affect engine performance.

Air Shutdown Device

The air shutdown device, which controls the airflow to the engine under specific conditions, relies on the Hexagon Flange Head Cap Screw to maintain a tight seal. This ensures that the device operates correctly, contributing to the engine’s overall efficiency and emissions control.

Alternator Mounting

In alternator mounting applications, the screw is used to attach the alternator to the engine bracket. A secure connection is vital for the alternator’s stable operation, ensuring consistent power generation for the vehicle’s electrical systems.

Charge Air Bypass Plumbing

For the charge air bypass plumbing, the screw helps in securing the bypass valves and pipes. This is important for managing the airflow around the turbocharger, optimizing engine performance and preventing potential damage from excessive pressure.

Crankcase Breather

The crankcase breather system uses the Hexagon Flange Head Cap Screw to attach the breather components to the engine block. This connection is crucial for maintaining proper ventilation within the crankcase, which is essential for engine health.

Engine Control Module (ECM)

In the engine control module assembly, the screw is utilized to mount the ECM securely to its bracket. This ensures that the ECM remains stable and protected, allowing it to accurately monitor and control engine functions.

Exhaust Recirculation Air Arrangement

For the exhaust recirculation air arrangement, the screw is used to fasten the EGR (Exhaust Gas Recirculation) components. This secure attachment helps in maintaining the integrity of the EGR system, which is vital for reducing emissions and improving fuel efficiency.

Front Gear Cover

The front gear cover, which protects the front section of the engine, is attached using the Hexagon Flange Head Cap Screw. This ensures that the cover remains firmly in place, safeguarding the internal components from contaminants and damage.

Fuel Control Module

In the fuel control module assembly, the screw is employed to secure the module to its mounting bracket. This stable attachment is important for the accurate delivery of fuel to the engine, ensuring optimal performance and efficiency.

Fuel Flow Valve

The fuel flow valve, which regulates the fuel supply to the engine, relies on the screw for secure mounting. This ensures that the valve operates correctly, maintaining the proper fuel-air ratio for combustion.

Injector Plumbing

For the injector plumbing, the screw is used to attach the fuel injectors and associated pipes to the engine block. This secure connection is essential for maintaining the integrity of the fuel delivery system, ensuring consistent fuel supply to the engine.

Intake Connection Mounting

In the intake connection mounting, the screw is utilized to fasten the intake components to the engine. This ensures a stable and leak-free connection, which is critical for maintaining the engine’s airflow and performance.

Oil Level Gauge

The oil level gauge, which monitors the engine’s oil level, is secured using the Hexagon Flange Head Cap Screw. This ensures that the gauge remains accurately positioned, providing reliable oil level readings.

Oil Pan

For the oil pan, the screw is used to attach the pan to the engine block. This secure connection is vital for maintaining the integrity of the oil pan, ensuring that it effectively contains the engine oil.

Turbocharger Arrangement

In the turbocharger arrangement, the screw is employed to secure the turbocharger and its associated components to the engine. This ensures that the turbocharger remains stable during operation, optimizing its performance and durability.

Conclusion

The 3927213 Hexagon Flange Head Cap Screw is a critical component in the assembly and maintenance of heavy-duty trucks and Cummins engines. Its robust design, high-strength material, and flanged head provide enhanced stability and resistance to loosening, making it suitable for high-stress applications. Proper installation and maintenance of this screw ensure the structural integrity and reliable operation of various engine systems, contributing to the overall performance and durability of the vehicle.

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