108767
Hexagon Head Cap Screw
Cummins®

Introduction

The Cummins 108767 Hexagon Head Cap Screw is a specialized fastener designed for use in commercial truck maintenance and operation. This screw is integral to ensuring the secure assembly of various components within truck systems, contributing to the overall reliability and performance of the vehicle.

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, providing a strong and durable connection. The hexagonal shape of the head ensures that the screw can be turned smoothly and with minimal risk of slipping, which is crucial in high-torque applications ¹.

Purpose and Role in Truck Operation

The Cummins 108767 Hexagon Head Cap Screw plays a significant role in the operation and maintenance of commercial trucks. It is utilized in various truck systems, including the engine, transmission, and chassis, to secure critical components. Its robust design ensures that these components remain firmly in place under the demanding conditions of commercial truck operation, thereby contributing to the vehicle’s overall performance and longevity.

Key Features

The Cummins 108767 Hexagon Head Cap Screw boasts several key features that enhance its functionality and durability. It is typically made from high-strength materials such as alloy steel, which provides excellent resistance to wear and corrosion. The screw features a coarse or fine thread, depending on the specific application, allowing it to securely fasten components together. Additionally, its hexagonal head design facilitates easy installation and removal using standard tools ².

Benefits

Using the Cummins 108767 Hexagon Head Cap Screw offers several benefits. Its high-strength material composition ensures improved reliability, making it suitable for use in demanding commercial truck applications. The screw’s design allows for ease of installation, reducing downtime during maintenance procedures. Furthermore, its resistance to wear and corrosion enhances the longevity of the fastener, contributing to the overall durability of the truck’s components.

Installation and Usage Guidelines

Proper installation of the Cummins 108767 Hexagon Head Cap Screw is crucial to ensure optimal performance and longevity. It is recommended to use a torque wrench to achieve the specified torque values during installation, which can be found in the manufacturer’s guidelines. Additionally, using the appropriate tools, such as a socket or wrench that matches the screw’s hexagonal head, ensures a secure and damage-free installation.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws may include loosening over time due to vibration or wear. Regular inspection and maintenance can help identify and address these issues promptly. If a screw appears loose, it should be re-tightened to the specified torque value. In cases of significant wear or damage, the screw may need to be replaced to maintain the integrity of the assembly.

Safety Considerations

When working with Hexagon Head Cap Screws, it is important to observe several safety practices. Proper handling of the screws and tools is necessary to prevent injury. Screws should be stored in a dry, secure location to prevent corrosion. Additionally, disposal of used or damaged screws 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 is committed to quality and innovation in the automotive industry. The company’s extensive product range includes engines, powertrains, and related components, all designed to meet the demanding requirements of commercial and industrial applications.

Hexagon Head Cap Screw 108767 Compatibility with Cummins Engines

The Hexagon Head Cap Screw part number 108767, manufactured by Cummins, is a versatile component that can be utilized across a variety of Cummins engines. This screw is designed to provide a secure fastening solution, ensuring that engine components remain tightly secured during operation.

Cummins K-Series Engines

For the K-Series engines, the 108767 screw is compatible with the following models:

• K38
• K50

These engines are known for their robust construction and are often used in heavy-duty applications, where reliable fastening is crucial.

Cummins QSK Engines

The 108767 screw is also suitable for several QSK engines, including:

• QSK38 CM2150 MCRS
• QSK38 CM850 MCRS
• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108

These engines are part of Cummins’ QSK series, which is designed for a wide range of applications, from marine to industrial use.

Cummins QSN Engines

The 108767 screw can also be used with the following QSN engine:

• QSN14 CM876 N103

This engine is part of Cummins’ QSN series, known for its efficiency and reliability in various applications.

Cummins B and 6B Series Engines

The 108767 screw is compatible with the following B and 6B series engines:

• 4B3.9
• 6B5.9
• B5.9 G
• B5.9 GAS PLUS CM556
• GTA38 G CMEICS G116C
• KTA38GC CM558

These engines are part of Cummins’ B and 6B series, which are widely used in various industries for their durability and performance.

Cummins L Series Engines

The 108767 screw is also suitable for the following L series engine:

• L10 MECHANICAL

This engine is part of Cummins’ L series, known for its reliability and efficiency in various applications.

Cummins V Series Engines

The 108767 screw is compatible with the following V series engine:

• V903

This engine is part of Cummins’ V series, which is designed for high-performance applications.

By using the 108767 Hexagon Head Cap Screw in these engines, operators can ensure that their engine components remain securely fastened, contributing to the overall reliability and performance of the engine.

Part 108767 Hexagon Head Cap Screw Component Usage

The part 108767 Hexagon Head Cap Screw is integral to the assembly and securement of various components within engine systems. Its role is to provide a reliable fastening solution that ensures components remain firmly in place under operational conditions.

In the air cleaner assembly, this screw is used to secure the cover to the base, ensuring a sealed environment for clean air intake. Similarly, within the air compressor, it fastens the compressor housing to its mounting bracket, maintaining structural integrity during compression cycles.

For the alternator bracket mounting and general bracket mounting applications, the screw ensures that the alternator is securely attached to the engine block, allowing for stable operation and efficient power generation.

In the cam follower mounting cover, the screw plays a part in securing the cover, which protects the cam followers from debris and ensures smooth operation of the camshaft.

The clutch housing relies on this screw to maintain the housing’s structural integrity, ensuring the clutch components operate efficiently without undue wear or misalignment.

For the coolant temperature switch, the screw is essential in securing the switch to its mounting point, allowing for accurate temperature readings and effective engine management.

In the EBM-PAN (Engine Bay Management Panel), the screw is used to secure various sensors and components, ensuring they remain in place and function correctly.

Within the oil pan, it secures the pan to the engine block, preventing oil leaks and ensuring the oil remains contained for lubrication purposes.

The fan arrangement and fan bracket utilize this screw to secure the fan to its mounting, ensuring efficient cooling of the engine components.

For the fan mounting bracket, the screw ensures the bracket is securely attached to the engine, allowing for effective fan operation.

In the flywheel housing and flywheel mounting housing, the screw is critical for securing the housing, which protects the flywheel and ensures smooth power transmission.

The front gear cover and gear cover mounting rely on this screw to maintain a sealed environment for the gears, preventing contamination and ensuring smooth operation.

For the gear mounting cover, the screw secures the cover, protecting the gears from external elements and ensuring precise gear engagement.

In the guard water pump mounting, the screw ensures the guard is securely attached, protecting the water pump from debris and ensuring efficient coolant flow.

For kit accessories, such as the filter-cooler cover and turbo VT-50 convert, the screw is used to secure these components, ensuring they remain in place and function as intended.

The oil pan assembly uses this screw to secure the pan, preventing oil leaks and ensuring the oil remains contained for lubrication purposes.

In the plate fuel instruction setup, the screw secures the plate, ensuring accurate fuel delivery and engine performance.

For the rear gear mounting housing, the screw ensures the housing is securely attached, protecting the rear gears and ensuring smooth power transmission.

In the switch temperature mounting application, the screw secures the temperature switch, allowing for accurate temperature readings and effective engine management.

Finally, in the turbocharger conversion kit, the screw is used to secure various components, ensuring the turbocharger operates efficiently and remains securely mounted to the engine.

Conclusion

The Cummins 108767 Hexagon Head Cap Screw is a critical component in the maintenance and operation of commercial trucks. Its robust design, high-strength material, and ease of installation make it an ideal choice for securing various engine components. Proper installation and regular maintenance ensure the longevity and reliability of the fastener, contributing to the overall performance of the vehicle.