3178947
Hexagon Head Cap Screw
Cummins®

The Hexagon Head Cap Screw, Part #3178947 by Cummins, is a specialized fastener designed for use in fastening applications, particularly within the commercial truck industry. This screw is engineered to secure various components and assemblies, ensuring both structural integrity and proper function. Its design and features make it suitable for the demanding conditions encountered in heavy-duty truck operations.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is characterized by its hexagonal head, which facilitates efficient tightening and loosening using a wrench or socket. The cap at the end of the screw serves to protect both the screw and the fastened components from environmental factors such as moisture, dirt, and debris. This design not only enhances the screw’s durability but also contributes to the longevity of the components it secures ¹.

Role of the 3178947 Hexagon Head Cap Screw in Truck Operation

The 3178947 Hexagon Head Cap Screw plays a significant role in the operation of a truck by securing various critical components and assemblies. Its application ensures that these parts remain firmly in place, which is vital for the truck’s structural integrity and functional reliability. By maintaining the proper alignment and connection of components, this screw helps to prevent issues that could arise from loose or improperly secured parts ².

Key Features

The 3178947 Hexagon Head Cap Screw boasts several key features that enhance its performance and durability in heavy-duty applications. These include:

• Material Composition: The screw is typically made from high-strength steel, which provides the necessary tensile strength and resistance to wear.
• Thread Pitch: The screw features a specific thread pitch that ensures a secure fit and optimal load distribution.
• Special Coatings or Treatments: To further enhance its durability, the screw may be coated with anti-corrosive materials or undergo other treatments that protect it from the harsh environments often encountered in truck operations.

Benefits

The benefits offered by the 3178947 Hexagon Head Cap Screw include:

• Increased Durability: The high-strength material and special coatings contribute to the screw’s longevity, even under demanding conditions.
• Resistance to Corrosion: The anti-corrosive treatments help protect the screw from environmental factors, reducing the risk of rust and degradation.
• Ease of Installation and Removal: The hexagonal head design allows for straightforward installation and removal using standard tools, facilitating maintenance and repair processes.

These benefits contribute to the overall reliability and maintenance efficiency of the truck, ensuring that it operates smoothly and requires fewer interventions ³.

Troubleshooting and Maintenance

Common issues associated with Hexagon Head Cap Screws include loosening over time and corrosion. To address these issues, regular inspection and proper maintenance are recommended. This may involve:

• Regular Inspection: Periodically checking the screws for signs of loosening or corrosion can help identify potential problems before they lead to more significant issues.
• Proper Torque Application: Ensuring that the screws are tightened to the manufacturer’s specified torque settings during installation can prevent loosening.
• Use of Anti-Seize Compounds: Applying anti-seize compounds where appropriate can help protect the screws from corrosion and make future removal easier.

About Cummins

Cummins Inc. is a renowned manufacturer with a rich history in diesel engines and related technologies. The company is known for its commitment to quality and innovation in the commercial vehicle industry. Cummins-manufactured parts, such as the 3178947 Hexagon Head Cap Screw, are trusted by professionals for their reliability and performance. This reputation is built on decades of expertise and a dedication to advancing the technology that powers the transportation sector.

Hexagon Head Cap Screw 3178947 in Cummins Engines

The Cummins Hexagon Head Cap Screw part number 3178947 is a critical component in various Cummins engine models. This screw is integral to the assembly and maintenance of these engines, ensuring secure fastening and reliable operation.

GTA38 G CMEICS G116C, K38, K50, KTA38GC CM558

In the GTA38 G CMEICS G116C, K38, K50, and KTA38GC CM558 engines, the 3178947 screw is used in several key areas. It is typically employed in securing engine components, ensuring that parts remain tightly fastened under operational stresses. This screw’s design allows for easy installation and removal, which is crucial during routine maintenance and repairs.

QSK38 CM2150 MCRS, QSK38 CM850 MCRS

For the QSK38 CM2150 MCRS and QSK38 CM850 MCRS engines, the 3178947 screw plays a vital role in maintaining the structural integrity of the engine. It is used in various applications, including attaching engine covers and securing internal components. The screw’s hex head design facilitates efficient torque application, ensuring that all parts are fastened to the manufacturer’s specifications.

QSK50 CM2150 K107, QSK50 CM2150 MCRS, QSK50 CM2350 K108

In the QSK50 CM2150 K107, QSK50 CM2150 MCRS, and QSK50 CM2350 K108 engines, the 3178947 screw is similarly essential. It is utilized in securing various engine components, ensuring that the engine operates smoothly and efficiently. The screw’s robust construction and precise threading make it suitable for high-stress environments, providing long-lasting performance and reliability.

The consistent use of the 3178947 Hexagon Head Cap Screw across these Cummins engine models underscores its importance in maintaining engine integrity and performance. This part’s versatility and reliability make it a preferred choice for securing critical engine components in various Cummins engine configurations.

Role of Part 3178947 Hexagon Head Cap Screw in Engine Systems

The part 3178947 Hexagon Head Cap Screw is integral to the assembly and functionality of various engine components. It is utilized in the Short Block Assembly to secure the Cylinder Block to the Base Part, ensuring a stable and rigid structure that can withstand the forces generated during engine operation.

In the Cylinder Block Assembly, this screw plays a part in attaching the Cylinder Head to the Cylinder Block, maintaining the seal necessary for combustion efficiency. It is also used in the Camshaft Mounting process, where it helps in securing the camshaft in place, allowing for precise valve timing and operation.

Furthermore, in the Oil Manifold and Oil Control Valve assemblies, the Hexagon Head Cap Screw ensures that these components are firmly attached to the Cylinder Block, facilitating proper oil distribution and control throughout the engine.

In the Piston Cooling Valve setup, this screw aids in attaching the valve to the Cylinder Block, ensuring effective cooling of the pistons and enhancing engine durability.

Additionally, within the Hardware Kit provided for engine assemblies, the part 3178947 Hexagon Head Cap Screw is often included to secure various components together, from the Main Bearings to the Oil Connection points, ensuring all parts function as a cohesive unit.

Its application extends to the Long Block Assembly - 50 and other Short Block Assemblies like the Short Block Assy - K38 and Short Block Assy - K50, where it contributes to the overall integrity and performance of the engine system.

Conclusion

The 3178947 Hexagon Head Cap Screw by Cummins is a critical component in the commercial truck industry, ensuring the structural integrity and reliable operation of various engine components. Its robust design, high-strength material, and anti-corrosive treatments make it suitable for the demanding conditions encountered in heavy-duty truck operations. Regular maintenance and proper torque application are essential to maximize its benefits and ensure long-lasting performance.