4087931
Hexagon Head Cap Screw
Cummins®

The Cummins 4087931 Hexagon Head Cap Screw is a specialized fastener designed for use in commercial trucks. Cummins, a well-established name in the commercial truck industry, produces a wide range of components that contribute to the efficiency, reliability, and safety of heavy-duty vehicles. This Cummins part plays a significant role in the fastening systems of commercial trucks.

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 hexagonal head provides a secure grip, minimizing the risk of cam-out during installation. Cap screws, in general, are used in mechanical assemblies to join components securely. They are often threaded into a tapped hole or used with a nut to create a strong, reliable connection ¹.

Purpose and Role in Truck Operation

This part serves a specific purpose in the context of commercial trucks. It is utilized in various applications where secure fastening is required, such as attaching brackets, panels, and other components. By providing a strong and durable connection, this screw contributes to the overall functionality and safety of the vehicle. Its role is vital in ensuring that parts remain securely fastened under the demanding conditions encountered in commercial truck operations ².

Key Features

The 4087931 Hexagon Head Cap Screw boasts several key features that enhance its performance and durability. Its hexagonal head design allows for easy and efficient tightening, while its material composition ensures robustness and resistance to wear and tear. Additionally, the screw may feature unique attributes such as a corrosion-resistant coating or a specific thread pitch that optimizes its performance in commercial truck applications ³.

Benefits

Using the 4087931 Hexagon Head Cap Screw offers several benefits. It provides improved fastening strength, ensuring that components remain securely attached even under significant stress. The screw’s design also offers resistance to loosening, reducing the need for frequent maintenance. Furthermore, its compatibility with various truck components makes it a versatile choice for a wide range of fastening applications.

Installation Guidelines

Proper installation of the 4087931 Hexagon Head Cap Screw is crucial for ensuring secure and effective fastening. Follow these step-by-step guidelines for installation:

1. Ensure the mating surface is clean and free of debris.
2. Align the screw with the tapped hole or nut.
3. Use a wrench or socket to tighten the screw gradually, applying even pressure.
4. Torque the screw to the manufacturer’s specified torque value to ensure a secure connection without over-tightening.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws include loosening over time and corrosion. To troubleshoot these issues, regularly inspect the screws for signs of wear or damage. If a screw appears loose, re-tighten it to the specified torque value. To prevent corrosion, apply a corrosion-resistant coating or lubricant as needed. Regular maintenance will help prolong the lifespan of the screw and ensure continued reliable performance.

Cummins: A Brief 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 strong reputation for quality and innovation in the commercial truck industry. The company’s commitment to excellence is evident in its wide range of products, which are designed to meet the demanding requirements of heavy-duty applications. Cummins’ dedication to quality ensures that its components, including the 4087931 Hexagon Head Cap Screw, deliver reliable performance and durability in commercial truck operations ⁴.

Hexagon Head Cap Screw 4087931 in Cummins Engines

The Cummins Hexagon Head Cap Screw part number 4087931 is a critical component in various Cummins engine models. This screw is designed to provide secure fastening in applications where high strength and durability are required.

ISX Series Engines

The ISX series engines, including the ISX CM570, ISX12/ISX11.9 CM2250, and ISX15 CM2250, utilize the 4087931 screw in several critical applications. These engines are known for their robust performance and reliability in heavy-duty applications. The screw is often used in the engine’s internal structure, ensuring that components remain tightly fastened under extreme conditions.

QSK Series Engines

In the QSK50 CM2150 MCRS engine, the 4087931 screw plays a vital role in maintaining the integrity of the engine’s components. This engine is designed for high-power output and efficiency, and the screw’s strength and precision are essential for its operation.

QSX Series Engines

The QSX15 CM2250 ECF engine also incorporates the 4087931 screw in its assembly. This engine is engineered for both power and fuel efficiency, and the screw’s role in securing various parts is crucial for its performance.

Each of these engines benefits from the use of the 4087931 screw in ensuring that all components are securely fastened, contributing to the overall reliability and longevity of the engine.

Role of Part 4087931 Hexagon Head Cap Screw in Engine Systems

In the intricate assembly of engine systems, the Part 4087931 Hexagon Head Cap Screw serves as a fundamental fastening component, ensuring the secure attachment and stability of various elements. Its application spans across multiple components, contributing to the overall functionality and reliability of the engine.

Integration with Key Components

• Arrangement: The screw is utilized in the precise arrangement of components, maintaining the structural integrity and alignment necessary for optimal engine performance.

• Pressure Regulator Valve: Securely fastens the pressure regulator valve, ensuring it operates within specified parameters to regulate fuel pressure efficiently.

• Drip Shield: Attaches the drip shield to protect underlying components from fuel leaks, enhancing safety and preventing potential damage.

• Fuel Control Module: Plays a role in the secure mounting of the fuel control module, which is essential for regulating fuel flow and maintaining engine efficiency.

• Fuel Pump: Ensures the fuel pump is firmly in place, allowing for consistent fuel delivery to the engine.

• Fuel Transfer Kit: Integral in the assembly of the fuel transfer kit, facilitating the smooth transfer of fuel between tanks.

• Fuel Transfer Pump: Secures the fuel transfer pump, ensuring reliable operation in transferring fuel as needed.

• Fuel Transfer Right Hand Engine Kit: Contributes to the secure installation of this kit, which is vital for engines requiring balanced fuel distribution.

• Primer: Fastens the primer, which is used to build fuel pressure before engine start-up, ensuring a smooth ignition process.

• Fuel System: Throughout the fuel system, the screw ensures all components are tightly secured, preventing leaks and ensuring efficient fuel delivery.

• Pump: Used in various pump assemblies to ensure they are securely mounted and function correctly.

• Fuel: While not a component per se, the screw ensures all fuel-related components are properly attached, maintaining the integrity of the fuel system.

• Service Kit: Often included in service kits to replace worn-out fasteners, ensuring continued reliability during maintenance procedures.

Conclusion

The Cummins 4087931 Hexagon Head Cap Screw is a vital component in the fastening systems of commercial trucks and Cummins engines. Its robust design, secure fastening capabilities, and compatibility with various components make it an essential part for ensuring the reliability and efficiency of heavy-duty vehicles. Proper installation and regular maintenance of this screw are crucial for the continued performance and safety of commercial trucks and engines.