213364
Hexagon Head Cap Screw
Cummins®

The Cummins Hexagon Head Cap Screw (Part #213364) is a specialized fastener designed for use in heavy-duty truck applications. Its purpose is to provide secure and reliable fastening in various truck components, ensuring the integrity and performance of the vehicle. This screw is engineered to withstand the demanding conditions encountered in heavy-duty truck operations, offering durability and resistance to wear and tear ¹.

Basic Concepts of Hexagon Head Cap Screws

A hexagon head cap screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. The design of the hexagon head provides a larger contact area compared to other head types, reducing the risk of cam-out and ensuring a more secure grip during installation. In fastening applications, these screws are used to join components together, providing structural integrity and resistance to vibration and movement ².

Purpose and Role in Truck Operation

The Cummins Hexagon Head Cap Screw plays a significant role in the operation and maintenance of heavy-duty trucks. It is utilized in various truck components, including engine mounts, transmission housings, and chassis assemblies. By securely fastening these components, the screw helps maintain the structural integrity of the truck, ensuring safe and reliable performance. Its applications extend to both original equipment manufacturing (OEM) and aftermarket parts, making it a versatile component in truck maintenance and repair ³.

Key Features

The Cummins Hexagon Head Cap Screw is distinguished by several key features that contribute to its effectiveness and durability. It is typically made from high-strength steel, offering excellent resistance to corrosion and wear. The screw features a coarse thread, which provides a strong grip and efficient load distribution. Its hexagonal head design allows for easy installation and removal, while the cap under the head provides additional surface area for load distribution and prevents damage to the fastened material ⁴.

Benefits

Using the Cummins Hexagon Head Cap Screw in truck applications offers several benefits. Its high-strength material composition ensures enhanced durability, making it suitable for the demanding conditions of heavy-duty truck operations. The screw’s resistance to vibration helps maintain secure fastening over time, reducing the need for frequent re-tightening. Additionally, the hexagonal head design allows for ease of installation, enabling technicians to quickly and efficiently secure components ⁵.

Installation Guidelines

Proper installation of the Cummins Hexagon Head Cap Screw is crucial for ensuring secure fastening and optimal performance. Begin by selecting the appropriate size and grade of screw for the application. Use a wrench or socket that fits the hexagonal head snugly to avoid rounding the corners. Apply the screw to the designated location and tighten it gradually, ensuring even pressure distribution. Adhere to the specified torque settings to prevent over-tightening, which can lead to damage, or under-tightening, which can compromise the fastening integrity ⁶.

Troubleshooting and Maintenance

Common issues associated with hexagon head cap screws include loosening due to vibration, corrosion, and wear. To troubleshoot these issues, regularly inspect the screws for signs of damage or corrosion. If a screw appears loose, re-tighten it to the specified torque settings. In cases of severe corrosion or damage, replace the screw to ensure continued reliable performance. Maintenance practices, such as applying a thread locker or anti-seize compound, can help prolong the lifespan of the screw and prevent future issues ⁷.

Safety Considerations

When working with hexagon head cap screws, it is important to observe several safety considerations. Use the appropriate tools to avoid damaging the screw or the fastened components. Store screws in a dry, corrosion-resistant environment to prevent rust and degradation. When installing or removing screws, wear appropriate personal protective equipment (PPE), such as gloves and safety glasses, to protect against injury. Follow all manufacturer guidelines and torque specifications to ensure safe and effective use of the screw ⁸.

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 itself as a trusted name in the automotive and heavy-duty truck industry. The company is committed to quality and innovation, continually developing advanced components and technologies to meet the evolving needs of its customers. The Cummins Hexagon Head Cap Screw is a testament to this commitment, offering reliable performance and durability in demanding applications ⁹.

Hexagon Head Cap Screw (Part 213364) Compatibility with Cummins Engines

The Cummins Hexagon Head Cap Screw, part number 213364, is a versatile component that fits a wide range of Cummins engines. This screw is designed for applications requiring a robust fastening solution, often used in engine assembly and maintenance.

Cummins Medium-Duty Engines

• 4B3.9
• 6B5.9
• 6C8.3
• B5.9 G

These engines, typically found in medium-duty applications, benefit from the reliable fastening provided by the 213364 screw. Its use ensures secure connections in various engine components.

Cummins Medium-Duty Engines with ISM Technology

• ISC CM554
• ISL CM554
• ISM CM570
• ISM CM570/870
• ISM CM876

The ISM series engines, known for their advanced technology and performance, also utilize the 213364 screw. This screw is integral in maintaining the integrity of engine assemblies in these high-performance engines.

Cummins Medium-Duty Engines with K Series Technology

• K19
• K38
• K50

The K series engines, recognized for their durability and power, incorporate the 213364 screw in several critical applications. Its use ensures that engine components remain securely fastened under various operational conditions.

Cummins Medium-Duty Engines with L10 Technology

• L10 CELECT
• L10 GAS
• L10 MECHANICAL

The L10 series engines, which include both CELECT and GAS variants, rely on the 213364 screw for critical fastening tasks. This screw’s design provides the necessary strength and durability for these engines.

Cummins Medium-Duty Engines with M11 Technology

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

The M11 engines, known for their efficiency and reliability, also use the 213364 screw. This screw is essential in maintaining the structural integrity of these engines.

Cummins Medium-Duty Engines with NH/NT Technology

• NH/NT 855

The NH/NT 855 engine, designed for heavy-duty applications, incorporates the 213364 screw in its assembly. This screw’s robust design ensures that the engine’s components remain securely fastened.

Cummins QSK Series Engines

• QSK19 CM2350 K105
• QSK19 CM850 MCRS
• QSK45 CM500
• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108

The QSK series engines, known for their high performance and reliability, also use the 213364 screw. This screw is crucial in maintaining the structural integrity of these engines, ensuring secure connections in various components.

Role of Part 213364 Hexagon Head Cap Screw in Engine Systems

The Part 213364 Hexagon Head Cap Screw is integral to the assembly and functionality of various engine components. Its application spans across multiple systems, ensuring secure fastening and reliable operation.

Air Cleaner Support

In the air cleaner support system, the Hexagon Head Cap Screw secures the support brackets, ensuring the air cleaner housing remains firmly in place. This is essential for maintaining the integrity of the air intake system, which is vital for engine performance.

Alternator Drive

For the alternator drive system, this screw plays a role in attaching the alternator to the engine block or mounting bracket. Proper fastening is necessary to ensure the alternator operates efficiently, providing consistent electrical power to the engine’s systems.

Belt Tensioner Kit

Within the belt tensioner kit, the Hexagon Head Cap Screw is used to secure the tensioner assembly. This ensures the correct tension is maintained on the drive belts, which is critical for the operation of accessories like the water pump, alternator, and power steering pump.

Clutch Mounting

In clutch mounting applications, the screw helps in securing the clutch housing to the engine or transmission. This ensures the clutch operates smoothly, transferring power from the engine to the transmission effectively.

Damper Arrangement

The damper arrangement often requires secure fastening to mitigate vibrations and ensure smooth engine operation. The Hexagon Head Cap Screw is employed to attach the damper to the engine block or other components, enhancing the stability and performance of the engine.

Engine Support Kit

For the engine support kit, these screws are used to attach the engine to its mounting brackets or the vehicle frame. This is essential for maintaining the engine’s position and absorbing vibrations, contributing to the overall durability and performance of the engine.

Fan Drive and Fan Hub

In the fan drive and fan hub systems, the Hexagon Head Cap Screw secures the fan to the water pump or engine, ensuring it operates at the correct speed to maintain optimal engine temperature.

Fan Pilot Spacer and Fan Spacer

These components often require precise spacing and secure attachment. The Hexagon Head Cap Screw ensures that the fan pilot spacer and fan spacer are correctly positioned and tightly fastened, contributing to efficient cooling system performance.

Flywheel Kit

Within the flywheel kit, the screw is used to attach the flywheel to the crankshaft. This is vital for the smooth transfer of power from the engine to the transmission, ensuring consistent engine operation.

Front Drive Adapter and Front PTO Stubshaft

These components require secure attachment to the engine or transmission. The Hexagon Head Cap Screw ensures that the front drive adapter and front PTO stubshaft are firmly in place, facilitating reliable power transfer.

Heat Exchanger

In heat exchanger applications, the screw is used to secure the heat exchanger to the engine or vehicle frame. This ensures efficient heat transfer and maintains the cooling system’s integrity.

Lubricating Oil Accessory Manifold and Lubricating Oil Filter

These components need to be securely attached to ensure proper oil flow and filtration. The Hexagon Head Cap Screw plays a role in fastening these components, contributing to the engine’s lubrication system’s effectiveness.

Marine Gear and Marine Gear Mounting

For marine applications, the screw is used to secure the marine gear to the engine and its mounting. This ensures the gear operates efficiently in marine environments, contributing to the vessel’s performance.

Radiator

The radiator often requires secure attachment to the vehicle frame or engine compartment. The Hexagon Head Cap Screw ensures the radiator is firmly in place, maintaining the cooling system’s efficiency.

Raw Water Pump

In raw water pump systems, the screw is used to attach the pump to the engine or mounting bracket. This ensures the pump operates efficiently, providing consistent cooling to the engine.

Rear Drive Adapter

For the rear drive adapter, the Hexagon Head Cap Screw secures the adapter to the engine or transmission. This is essential for reliable power transfer to the rear components of the vehicle.

Reverse Mounting Gear

In reverse mounting gear applications, the screw ensures the gear is securely attached to the engine or transmission. This is vital for the efficient operation of the reverse gear system.

Subbase

The subbase often requires secure attachment to the engine or vehicle frame. The Hexagon Head Cap Screw ensures the subbase is firmly in place, contributing to the engine’s overall stability and performance.

Conclusion

The Cummins Hexagon Head Cap Screw (Part #213364) is a critical component in the assembly and maintenance of heavy-duty truck engines. Its robust design, high-strength material, and versatile applications make it an essential fastener for ensuring the structural integrity and reliable performance of various engine components. Proper installation, regular maintenance, and adherence to safety guidelines are crucial for maximizing the effectiveness and longevity of this Cummins part.