3281718
Hexagon Flange Head Cap Screw
Cummins®

The Hexagon Flange Head Cap Screw, identified by part number 3281718 and manufactured by Cummins, is a specialized fastener designed for heavy-duty truck applications. This screw is integral to ensuring structural integrity and operational efficiency in commercial trucks. Its robust design and high-quality construction make it a reliable component for securing various assemblies within the vehicle ¹.

Basic Concepts and Functionality

The Hexagon Flange Head Cap Screw operates on fundamental principles of mechanical fastening. Its hexagonal head allows for efficient torque application using standard tools, ensuring secure engagement with mating components. The flanged underside provides additional surface area, which helps distribute loads more evenly and prevents the screw from pulling through the material. This design enables the screw to withstand various loads and stresses encountered in heavy-duty truck environments ².

Purpose and Role in Truck Operation

In heavy-duty truck applications, the 3281718 Hexagon Flange Head Cap Screw serves a specific purpose by securing critical components and assemblies. It plays a role in maintaining the structural integrity of the truck, ensuring that parts remain firmly in place under demanding conditions. This contributes to the overall performance and reliability of the vehicle, allowing it to operate efficiently over extended periods ³.

Key Features

The 3281718 Hexagon Flange Head Cap Screw boasts several key features that enhance its functionality and performance. Its hexagonal head design allows for straightforward and secure tool engagement, facilitating easy installation and removal. The flanged underside provides added stability and load distribution, reducing the risk of the screw pulling through the material. Additionally, the screw is composed of high-strength materials, ensuring durability and resistance to corrosion in harsh truck environments.

Benefits

The 3281718 Hexagon Flange Head Cap Screw offers several benefits that contribute to the efficiency and longevity of truck components and assemblies. Its design allows for improved torque application, ensuring that components are securely fastened. The flanged underside enhances resistance to loosening, maintaining the integrity of the assembly over time. Furthermore, the screw’s durable material composition increases its longevity, reducing the need for frequent replacements and maintenance.

Troubleshooting and Maintenance

Common issues with Hexagon Flange Head Cap Screws may include loosening over time or corrosion in harsh environments. To address these issues, regular inspection and maintenance are recommended. Proper installation techniques, such as using the correct torque specifications, can prevent loosening. Periodic inspections can identify signs of corrosion or wear, allowing for timely replacement if necessary. Additionally, ensuring that mating surfaces are clean and free of debris can enhance the screw’s performance and longevity.

Cummins: Manufacturer Overview

Cummins Inc. is a renowned manufacturer in the automotive and heavy-duty truck industries. With a rich history and a strong reputation for quality and innovation, Cummins is committed to producing reliable and high-performance components. The company’s expertise in engineering and manufacturing ensures that products like the 3281718 Hexagon Flange Head Cap Screw meet the rigorous demands of heavy-duty truck applications, providing customers with dependable solutions for their vehicles.

Cummins Engine Compatibility with Hexagon Flange Head Cap Screw

The Cummins part number 3281718, a Hexagon Flange Head Cap Screw, is designed to be compatible with several of Cummins’ engine models. This part is integral in securing various components within the engine assembly, ensuring structural integrity and operational efficiency.

4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines, both part of Cummins’ B Series, benefit from the use of the 3281718 screw. These engines are known for their robust design and are commonly used in various industrial and commercial applications. The screw’s flange head provides a secure grip, essential for maintaining the alignment and fastening of engine components under high operational stresses.

ISB6.7 G CM2180 B118

The ISB6.7 G CM2180 B118 engine, a part of the Cummins ISB Series, also utilizes the 3281718 screw. This engine is recognized for its high power output and efficiency, making it suitable for heavy-duty applications. The screw’s design ensures that it can withstand the rigors of continuous operation, providing a reliable fastening solution for critical engine components.

QSC8.3 CM850 (CM2850) and QSK60 CM850 MCRS

The QSC8.3 CM850 (CM2850) and QSK60 CM850 MCRS engines, both part of the Cummins QSC and QSK Series, are designed for demanding applications such as construction and agricultural equipment. The 3281718 screw is used in these engines to secure various parts, ensuring that the engine maintains its structural integrity and operational efficiency. The screw’s flange head provides a stable and secure fastening, crucial for the high-stress environments these engines operate in.

Role of Part 3281718 Hexagon Flange Head Cap Screw in Engine Systems

The part 3281718 Hexagon Flange Head Cap Screw is integral to the secure assembly and operation of various engine components. Its design allows for robust fastening, ensuring that components remain firmly in place under the demanding conditions of engine operation.

Crankcase Breather and Crankcase Breather Plumbing

In the crankcase breather system, the Hexagon Flange Head Cap Screw is used to secure the breather housing to the engine block. This ensures that the breather system effectively vents pressure and contaminants from the crankcase, maintaining optimal engine performance and longevity. Additionally, within the crankcase breather plumbing, these screws secure fittings and hoses, ensuring a sealed system that prevents leaks and maintains efficient pressure regulation.

Electronic Control Module Wiring Harness

For the electronic control module (ECM) wiring harness, the Hexagon Flange Head Cap Screw plays a role in securing the harness to the engine or chassis. This fastening ensures that the wiring remains protected and in place, reducing the risk of electrical interference or damage that could disrupt engine management functions.

Marine Gear Oil Cooler

In marine applications, the oil cooler is vital for maintaining the optimal temperature of the gear oil. The Hexagon Flange Head Cap Screw is employed to secure the cooler to the engine or transmission housing. This ensures that the cooler remains stable and effectively dissipates heat, contributing to the reliable operation of the marine gear system.

Oil Pan

The oil pan is a critical component for storing engine oil. The Hexagon Flange Head Cap Screw is used to secure the oil pan to the engine block. This ensures a tight seal, preventing oil leaks and maintaining the integrity of the lubrication system.

Turbocharger Arrangement

In turbocharged engines, the turbocharger arrangement requires precise assembly to function correctly. The Hexagon Flange Head Cap Screw is utilized to secure various components of the turbocharger, such as the turbine housing and compressor housing, ensuring they remain aligned and operate efficiently under high-stress conditions.

Turbocharger Oil Plumbing

The turbocharger oil plumbing system relies on secure connections to maintain oil flow to and from the turbocharger. The Hexagon Flange Head Cap Screw is used to fasten oil lines and fittings, ensuring that the oil supply remains consistent and leak-free, which is essential for the lubrication and cooling of turbocharger components.

Conclusion

The 3281718 Hexagon Flange Head Cap Screw is a critical component in heavy-duty truck and engine applications, providing reliable fastening and ensuring the structural integrity and operational efficiency of various assemblies. Its robust design, key features, and compatibility with multiple Cummins engine models make it an essential part for maintaining the performance and longevity of commercial trucks and engines.