3917712
Hexagon Head Cap Screw
Cummins®

Introduction

The Hexagon Head Cap Screw part #3917712, manufactured by Cummins, is a vital component for the maintenance and operation of commercial trucks. This part is engineered to withstand the demanding conditions of heavy-duty applications, ensuring reliable performance and durability in various truck systems.

Basic Concepts of Hexagon Head Cap Screws

Hexagon Head Cap Screws are fasteners with a hexagonal head, facilitating efficient tightening and loosening with a wrench or socket. These screws are commonly used in mechanical systems to secure components, providing a robust and stable connection. They are typically made from materials such as steel, stainless steel, or alloy steel, selected for their strength, corrosion resistance, and ability to endure high stress levels ¹.

Purpose of the 3917712 Hexagon Head Cap Screw in Truck Operation

This Cummins part plays a crucial role in the operation and maintenance of commercial trucks. It is utilized in critical systems and components, such as engine mounts, transmission housings, and chassis assemblies. By securely fastening these parts, the screw helps maintain the structural integrity and performance of the truck, ensuring safe and efficient operation ².

Key Features of the 3917712 Hexagon Head Cap Screw

The 3917712 features a precise hexagonal head design, which provides a secure grip for tools during installation and removal. The screw has a threaded shaft that ensures a strong and reliable connection when fastened. It may also include unique characteristics such as a corrosion-resistant coating or specialized threading to enhance its functionality and reliability in demanding environments ³.

Benefits of Using the 3917712 Hexagon Head Cap Screw

Using this part offers several benefits, including enhanced durability, ease of installation, and resistance to loosening. These attributes contribute to the overall performance and longevity of truck components, reducing the need for frequent maintenance and replacement. The screw’s design also ensures a secure and stable connection, which is vital for the safe operation of commercial trucks.

Troubleshooting and Maintenance Suggestions

To troubleshoot common issues related to the 3917712, it is important to conduct regular inspections for signs of wear, corrosion, or damage. Maintenance practices should include adhering to torque specifications during installation to prevent over-tightening or under-tightening, which can lead to screw failure. Replacement guidelines should be followed to ensure that worn or damaged screws are promptly replaced to maintain optimal performance.

Cummins: Manufacturer Overview

Cummins is a renowned manufacturer with a long-standing reputation in the industry for quality and innovation. The company’s commitment to excellence is evident in the design and production of the 3917712. Cummins’ expertise in engineering and manufacturing contributes to the reliability and performance of this component, making it a trusted choice for commercial truck applications.

Hexagon Head Cap Screw 3917712 in Cummins Engines

This part is a critical component in several Cummins engine models. It is integral to the assembly and operation of these engines, ensuring secure fastening and stability.

Engine Models Utilizing 3917712

• 4B3.9 and 6B5.9 Engines: Used in various applications within these engines, including securing engine components.
• 6C8.3 and B4.5 Engines: Maintains the structural integrity of the engine by fastening different parts together.
• L8.9 and L8.9 L121 Engines: Essential for the proper functioning of these engines, providing necessary fastening for various components.
• L9.5 L117 and Z13 Z108G Engines: Critical for maintaining the alignment and stability of the engine components.

Application and Importance

This part is designed to provide a reliable and secure fastening solution in high-stress environments. Its use across multiple engine models highlights its versatility and importance in ensuring the engines operate efficiently and reliably.

Role of Part 3917712 Hexagon Head Cap Screw in Engine Systems

This part is integral to the assembly and securement of various components within engine systems. Its robust design ensures reliable fastening, which is essential for the proper functioning and durability of the engine.

Air Fuel Control Plumbing

Secures fittings and connections, ensuring no leaks in the system, which is vital for maintaining the correct air-fuel ratio.

Bosch Fuel Pump Kit

Fastens the fuel pump to its mounting bracket, necessary to withstand the vibrations and pressures within the fuel system.

Engine Instrument Panel

Employed to mount gauges and sensors, ensuring accurate readings from these instruments.

Exhaust Manifold

Utilized to attach the manifold to the engine block, preventing exhaust leaks.

Exhaust Recirculation

Secures the recirculation valve and plumbing, ensuring effective mixing of recirculated exhaust gases with the incoming air-fuel mixture.

Fuel Plumbing

Secures fuel lines and connectors, maintaining the integrity of the fuel delivery system.

Fuel Pump and Fuel Pump Conversion Kit

Essential for mounting the pump within the fuel tank, ensuring efficient and reliable operation.

Fuel Pump Coupling and Fuel Pump Plumbing

Ensures tight and leak-free connections, crucial for maintaining correct fuel flow and pressure.

Fuel Shutoff Valve and Fuel Supply Line

Secures these components to prevent disconnections or leaks, important for safety and functionality.

Fuel Tube and Injector Fuel Supply Tube

Requires secure fastening to prevent fuel leaks and ensure consistent fuel delivery to the injectors.

Injector Plumbing and Injectors

Secures injectors and their associated tubing, ensuring correct fuel pressure and flow.

Performance Parts

Often used to secure aftermarket components that enhance engine performance, ensuring they withstand increased stresses and vibrations.

Conclusion

The 3917712 Hexagon Head Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks and various Cummins engine models. Its robust design, reliable performance, and versatility make it an essential part for ensuring the structural integrity and efficiency of truck and engine systems.