3018671
Hexagon Head Cap Screw
Cummins®

The Cummins Part #3018671 Hexagon Head Cap Screw is a specialized fastener designed for use in heavy-duty truck components. This screw is integral to the assembly and maintenance of various truck parts, ensuring secure and reliable connections. Its robust design and high-quality materials make it suitable for the demanding conditions encountered in heavy-duty applications.

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. These screws are commonly used in mechanical assemblies to secure components together. They provide a strong, stable connection that can withstand significant stress and vibration, making them ideal for applications where durability and reliability are paramount ¹.

Purpose of the Cummins Part #3018671 Hexagon Head Cap Screw

The Cummins Part #3018671 Hexagon Head Cap Screw plays a specific role in the operation and maintenance of heavy-duty trucks. It is used in various truck assemblies where secure fastening is required. This includes applications in the engine, transmission, and chassis components. The screw ensures that parts remain firmly in place, contributing to the overall stability and performance of the truck ².

Key Features

The Cummins Part #3018671 Hexagon Head Cap Screw boasts several key features that enhance its functionality and durability. It is made from high-strength materials, ensuring it can withstand the rigors of heavy-duty use. The screw features a precise thread type that provides a strong grip, preventing loosening over time. Additionally, its hexagonal head design allows for easy installation and removal using standard tools ³.

Benefits

The Cummins Part #3018671 Hexagon Head Cap Screw offers several benefits. Its design allows for improved load distribution, ensuring even pressure across the fastened components. The screw’s resistance to vibration helps maintain a secure connection, even in harsh operating conditions. Furthermore, its ease of installation and removal simplifies maintenance procedures, reducing downtime and enhancing efficiency ⁴.

Installation and Usage

Proper installation of the Cummins Part #3018671 Hexagon Head Cap Screw is crucial for ensuring its effectiveness. It is recommended to use the appropriate torque specifications to achieve the desired clamping force without over-tightening, which could damage the screw or the components being fastened. Standard wrenches or sockets are typically used for installation, ensuring a secure and efficient process.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening due to vibration and corrosion. Regular inspection and maintenance can help identify and address these issues promptly. If a screw shows signs of wear or damage, it should be replaced to maintain the integrity of the assembly. Proper lubrication can also help prevent corrosion and ease future removal.

Safety Considerations

When working with Hexagon Head Cap Screws, it is important to observe several safety practices. Ensure that the work area is clean and free of debris to prevent contamination. Use the correct tools to avoid damage to the screw or the components being fastened. Additionally, store screws in a dry, secure location to prevent rust and ensure they are readily available when needed.

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 is renowned for its high-quality components and innovative solutions. The company’s commitment to excellence is evident in its production of reliable and durable parts, such as the Part #3018671 Hexagon Head Cap Screw, which plays a role in ensuring the performance and longevity of heavy-duty trucks.

Hexagon Head Cap Screw 3018671 Compatibility with Cummins Engines

The Hexagon Head Cap Screw part number 3018671, manufactured by Cummins, is a versatile component that fits into various Cummins engine models. This screw is designed to provide secure fastening in applications where durability and strength are paramount. Below is a detailed breakdown of the engines with which this part is compatible:

Cummins 4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines are part of Cummins’ range of inline diesel engines. The 3018671 screw is used in these engines for securing various components, ensuring that parts remain tightly fastened under operational stresses.

ISM CM570 and ISM CM570/870 Engines

The ISM CM570 and ISM CM570/870 engines are part of Cummins’ Intelligent Systems Management (ISM) series. These engines benefit from the 3018671 screw in several applications, including securing engine mounts, brackets, and other critical components.

ISM CM876, ISM11 CM876 SN, and QSM11 CM570 Engines

The ISM CM876, ISM11 CM876 SN, and QSM11 CM570 engines are also part of the ISM series. The 3018671 screw is used in these engines for fastening various parts, ensuring that the engine’s structural integrity is maintained.

K50 and L10 Engines

The K50 and L10 engines, including the L10 CELECT, L10 GAS, and L10 MECHANICAL variants, are part of Cummins’ lineup of industrial and marine engines. The 3018671 screw is utilized in these engines for securing components such as engine mounts, brackets, and other critical parts.

M11 Engines

The M11 engines, including the M11 CELECT, M11 CELECT PLUS, and M11 MECHANICAL variants, are another series where the 3018671 screw is used. This screw is essential for fastening various components, ensuring the engine’s components remain securely in place.

N14 CELECT PLUS Engine

The N14 CELECT PLUS engine is part of Cummins’ range of heavy-duty diesel engines. The 3018671 screw is used in this engine for securing various parts, ensuring that the engine’s components are tightly fastened.

V903 Engine

The V903 engine is another model where the 3018671 screw is used. This screw is essential for securing various components in this engine, ensuring that the engine’s parts remain securely fastened.

By understanding the compatibility of the Hexagon Head Cap Screw 3018671 with these Cummins engines, technicians and engineers can ensure that their engines are properly maintained and that critical components remain securely fastened.

Role of Part 3018671 Hexagon Head Cap Screw in Engine Systems

The part 3018671 Hexagon Head Cap Screw is integral to the secure assembly and operation of various engine components. Its applications span across multiple systems, ensuring the stability and efficiency of the engine.

Arrangement and Lifting Brackets

In the arrangement and lifting brackets, the Hexagon Head Cap Screw provides the necessary tensile strength to hold the brackets firmly in place. This is essential during the lifting and transportation of the engine, where the integrity of the brackets is paramount to prevent any accidental dislodgment or damage.

Crossmember Support Mounting

For the crossmember support mounting, the screw plays a key role in attaching the crossmember to the engine frame. This connection is vital for distributing the load evenly across the engine structure, enhancing the overall stability and durability of the engine.

Fan Drive and Accessory Drive Pulleys

In the fan drive and accessory drive pulleys, the Hexagon Head Cap Screw ensures that the pulleys are securely fastened to their respective shafts. This secure attachment is necessary for the efficient transfer of power from the engine to the accessories, such as the alternator and hydraulic pump.

Filter and Lubricating Oil Systems

Within the full flow oil filter and lubricating oil filter systems, the screw is used to mount the filters to their housings. This ensures that the filters remain in place and function correctly, providing clean oil to the engine components and prolonging their lifespan.

Generator and Main Alternator Mounting

For the generator and main alternator, the Hexagon Head Cap Screw is employed in the mounting process. A secure attachment is essential to ensure that the alternator operates efficiently and without vibration, which could otherwise lead to premature failure.

Hydraulic Pump Mounting

In hydraulic pump mounting, the screw ensures that the pump is firmly attached to the engine. This is important for the consistent operation of the hydraulic system, which relies on stable and secure pump mounting to function effectively.

Vibration Isolator

The vibration isolator utilizes the Hexagon Head Cap Screw to attach the isolator to the engine and its mounting points. This connection helps in reducing the transmission of vibrations from the engine to the vehicle’s frame, contributing to a smoother operation and reduced wear on the engine components.

Radiator and Radiator Mounting

In the radiator and its mounting, the screw ensures that the radiator is securely fixed in place. This is important for maintaining the correct airflow through the radiator, which is essential for effective engine cooling.

Subbase and Engine Support

The subbase and both front and rear engine supports rely on the Hexagon Head Cap Screw to maintain their structural integrity. These supports are fundamental in absorbing and distributing the engine’s operational forces, ensuring stable and reliable performance.

Accessory Support

Finally, for accessory support, the screw is used to mount various engine accessories. This secure mounting is necessary for the accessories to function correctly and to prevent any potential damage from loose or vibrating components.

Conclusion

The Cummins Part #3018671 Hexagon Head Cap Screw is a critical component in the assembly and maintenance of heavy-duty truck engines. Its robust design, high-quality materials, and precise thread type ensure secure and reliable connections across various engine systems. Proper installation, regular maintenance, and adherence to safety practices are essential to maximize the effectiveness and longevity of this part.