3974651
Hexagon Head Cap Screw
Cummins®

Introduction

The Hexagon Head Cap Screw Assembly 3974651, manufactured by Cummins, is designed for use in commercial trucks. It ensures secure fastening of various components, reflecting Cummins’ commitment to quality and innovation ².

Basic Concepts of Hexagon Head Cap Screw Assembly

The Hexagon Head Cap Screw Assembly features a screw with a hexagonal head for efficient tightening and loosening. It may include washers or other components to enhance functionality, providing secure fastening and load distribution ¹.

Purpose and Role in Truck Operation

This Cummins part is integral to truck operation, used in applications requiring secure fastening such as attaching body panels, securing engine components, and joining chassis parts. It ensures components remain securely in place under varying conditions and loads ².

Key Features

The 3974651 is made from high-quality materials for durability and resistance to wear. It features a precise hexagonal head for easy tightening and is engineered for optimal load distribution. Coatings or treatments may offer corrosion resistance, extending its lifespan in demanding environments ².

Benefits

Using the 3974651 offers enhanced durability, corrosion resistance, and ease of installation. These attributes contribute to the efficiency and longevity of truck components, reducing the need for frequent replacements and maintenance ².

Installation Process

Proper installation involves selecting the appropriate screw size, using a wrench or socket to tighten gradually, and avoiding over-tightening. A torque wrench is recommended to achieve the correct tightening specification ².

Troubleshooting and Maintenance

Common issues include loosening or corrosion. Regular inspection, re-tightening to specified torque, and applying protective coatings can prevent these issues. Regular maintenance practices prolong the assembly’s lifespan and ensure optimal performance ².

Safety Considerations

Follow safety precautions when working with the 3974651. Use correct tools and techniques, store screws in a dry environment, and dispose of them according to local regulations for metal waste ².

Cummins Overview

Cummins Inc. is a leading manufacturer known for innovation and quality. The company offers a wide range of products, including engines, filtration systems, and aftermarket parts. The 3974651 reflects Cummins’ expertise in providing reliable and high-performance components ².

Cummins Hexagon Head Cap Screw Assembly Part 3974651 in Engine Applications

The 3974651 is a critical component in various engine models, providing secure fastening in high-stress environments ³.

Application in 6B5.9 Engines

In the 6B5.9 engine, the 3974651 is used to secure engine covers and housings, ensuring they remain tightly fastened under operational conditions. Its design allows for easy installation and removal, crucial during maintenance and repair ³.

Application in 6C8.3 Engines

In the 6C8.3 engine, the 3974651 fastens components such as the cylinder head cover and intake manifold. Its robust design ensures these parts are held securely, essential for engine performance and longevity ³.

Grouping of Applications

Both the 6B5.9 and 6C8.3 engines use the 3974651 for securing engine covers and housings. This commonality highlights the part’s versatility and reliability across different engine models ³.

Role of Part 3974651 Hexagon Head Cap Screw Assembly in Engine Systems

The Hexagon Head Cap Screw Assembly (part 3974651) is integral to the assembly and maintenance of various engine components, providing secure fastening under operational stresses ³.

Generator

In the generator assembly, the Hexagon Head Cap Screw Assembly attaches the generator housing to the engine block, maintaining alignment and stability for efficient power generation and transfer ³.

Main Engine Components

Within the main engine assembly, these screws fasten critical components such as the cylinder head, valve covers, and various brackets, preventing misalignment and mechanical failure ³.

Radiator

For the radiator, the Hexagon Head Cap Screw Assembly mounts the radiator to its supporting structure, ensuring proper coolant flow and effective engine cooling ³.

Radiator Mounting

In radiator mounting, these screws attach the radiator mounting brackets to the chassis, ensuring optimal heat dissipation and maintaining the cooling system’s integrity ³.

Conclusion

The Hexagon Head Cap Screw Assembly 3974651 by Cummins is a fundamental component in ensuring the structural integrity and operational efficiency of various engine systems. Its reliable performance, ease of installation, and maintenance make it an indispensable part in the automotive industry.