3902116
Hexagon Flange Head Cap Screw
Cummins®

Introduction

The Hexagon Flange Head Cap Screw, specifically Part #3902116 by Cummins, is a critical component in commercial trucks. Cummins, a manufacturer known for its quality and innovation in diesel engines and components, produces this screw. This part is essential for the fastening systems used in various truck assemblies, ensuring secure and reliable connections.

Basic Concepts

A Hexagon Flange Head Cap Screw is characterized by its hexagonal head and flanged base. The hexagonal head allows for efficient torque application using standard tools, while the flange provides additional surface area to distribute load and prevent the screw from sinking into the material. This screw plays a role in fastening systems by securely joining components, ensuring structural integrity and stability ¹.

Purpose and Role in Truck Operation

The 3902116 Hexagon Flange Head Cap Screw provides robust fastening solutions for various assemblies in commercial trucks. It is commonly used in applications requiring high torque and resistance to loosening. This screw ensures that critical parts remain securely attached, even under demanding conditions, contributing to the overall operation and maintenance of truck components ².

Key Features

The 3902116 Hexagon Flange Head Cap Screw features a hexagonal head design for precise torque application and a flange for added stability and load distribution. Made from high-strength steel, it ensures durability and resistance to corrosion, making it suitable for harsh environments ³.

Benefits

Using the 3902116 Hexagon Flange Head Cap Screw offers several benefits. Its design allows for improved torque application, ensuring secure fastening of components. Its resistance to loosening helps maintain the integrity of truck assemblies over time. The durability of this screw in harsh environments contributes to the efficiency and safety of truck operations, reducing the need for frequent replacements and maintenance ⁴.

Installation and Usage

Proper installation of the 3902116 Hexagon Flange Head Cap Screw is crucial for its performance. It is important to follow torque specifications provided by the manufacturer to ensure the screw is tightened to the correct level. Best practices include using the appropriate tools and ensuring that the surfaces being joined are clean and free of debris. This screw is commonly applied in truck assemblies where secure fastening is required, such as in engine components, chassis parts, and other critical areas.

Troubleshooting and Maintenance

Common issues with the 3902116 Hexagon Flange Head Cap Screw may include loosening or corrosion. To troubleshoot these problems, it is important to inspect the screw and surrounding components regularly. If loosening is detected, re-tightening to the specified torque may resolve the issue. In cases of corrosion, cleaning the affected area and applying a suitable anti-corrosive treatment can help. Regular maintenance, including inspection and re-torqueing as needed, will ensure the longevity and optimal performance of this screw.

Cummins Overview

Cummins Inc. is a leading manufacturer with a rich history in the automotive industry, particularly known for its expertise in diesel engines and components. The company is committed to quality and innovation, providing reliable and high-performance parts for various applications. Cummins’ reputation for excellence makes its products, including the 3902116 Hexagon Flange Head Cap Screw, a trusted choice for commercial truck operators and maintenance professionals.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw (Part 3902116)

The Cummins Hexagon Flange Head Cap Screw, identified by the part number 3902116, is compatible with various Cummins engine models. This screw is designed to secure components within the engine assembly, ensuring structural integrity and operational efficiency. Below is a detailed breakdown of the engines that are compatible with this part:

• 4B3.9, 6B5.9, 6C8.3, B4.5, B5.9: These engines benefit from the use of the 3902116 screw in several applications, ensuring that parts remain securely in place under operational stress.
• B6.7 CM2350 B135B, B6.7 CM2670 B153B: These engines utilize the 3902116 screw in various mounting and securing applications, maintaining the alignment and stability of critical engine components.
• C GAS PLUS CM556, C8.3 G, GTA8.3 CM558: These engines incorporate the 3902116 screw in their design, securing components subject to high stress and vibration.
• F2.8 CM2620 F135B, F3.8 CM2350 F128C, F3.8 CM2620 F137B, F4.5 CM2620 F139B, F4.5 CM2620 F141C: These engines use the 3902116 screw in various applications, securing components exposed to high temperatures and pressures.
• ISB CM2150, ISB CM550, ISB CM850, ISB/ISD4.5 CM2150 B119, ISB/ISD6.7 CM2150 SN, ISB5.9 CM2880 B127, ISB6.7 CM2250, ISB6.7 CM2350 B101, ISB6.7 G CM2180 B118: The ISB series engines utilize the 3902116 screw in their design, securing various engine components and ensuring efficient and reliable operation under a range of conditions.

Role of Part 3902116 Hexagon Flange Head Cap Screw in Engine Systems

The 3902116 Hexagon Flange Head Cap Screw is instrumental in securing and maintaining the integrity of various engine components. Its application spans across multiple systems within an engine, ensuring that parts remain firmly in place under operational stress.

• Aftercooler and Air Crossover Connection: This screw is used to fasten components that facilitate the cooling of compressed air and ensure a secure link between different air passages.
• Block and Cylinder Assembly: It attaches critical components such as the cylinder head, securing the combustion chamber and ensuring proper sealing.
• Compressor and Air Connection: Vital for attaching the compressor housing to the engine block and securing air connections.
• Exhaust Outlet and Cover: Used to attach the exhaust manifold to the engine block and secure the front gear cover.
• Drive and Alternator: Employed to fasten the alternator to the engine block, ensuring stable and efficient operation.
• Filter and Oil Bypass: Secures the lubricating oil filter head and the oil bypass valve, ensuring effective oil filtration.
• Flywheel and Front Gear Cover: Attaches the flywheel to the engine block and secures the front gear cover.
• Housing and Vibration Isolator: Used to attach various housing components and secure the vibration isolator to the engine block.
• Kit Muffler and Lubricating Oil Filter: Fastens these components to the engine, ensuring efficient operation and effective oil filtration.
• Mounting and Aftertreatment: Secures aftertreatment components to the engine or chassis, ensuring correct functioning.
• Pan and Oil System: Attaches the oil pan to the engine block, protecting the oil supply and maintaining the lubrication system.
• Pulley and Crankshaft: Secures the pulley to the crankshaft, ensuring smooth operation.
• Rail and Base: Attaches these components to the engine or chassis, providing a stable foundation.
• Rocker Lever Lifting Fixture and Service Kit: Secures these elements in place, ensuring safe operation and correct installation.
• Short Block and Front Engine Support: Attaches these components to the engine, ensuring secure placement and adequate stability.
• Engine Monitoring and Transmission Adapter: Secures these components to the engine, ensuring correct functioning and a secure connection between the engine and transmission.

Conclusion

The 3902116 Hexagon Flange Head Cap Screw by Cummins is a vital component in commercial trucks, providing robust fastening solutions for various assemblies. Its key features, including the hexagonal head and flanged base, ensure secure and reliable connections. The screw’s compatibility with various Cummins engine models underscores its versatility and importance in maintaining engine integrity and operational efficiency.

References