3067461
Captive Washer Cap Screw
Cummins®

The Cummins 3067461 Captive Washer Cap Screw is a specialized fastener designed for use in heavy-duty truck maintenance and operation. This component is integral to ensuring the secure assembly of various truck components, contributing to the overall reliability and performance of the vehicle.

Basic Concepts of Captive Washer Cap Screws

Captive washer cap screws are fasteners that incorporate a washer directly into the screw design. This integration ensures that the washer remains in place during installation, reducing the risk of loss and simplifying the assembly process. These screws are commonly used in mechanical assemblies where consistent and reliable fastening is required. The captive washer enhances the sealing capabilities and load distribution of the screw, making it suitable for applications that demand high durability and resistance to vibration ¹.

Purpose of the Cummins 3067461 Captive Washer Cap Screw

This Cummins part plays a specific role in truck operations by securing critical components and ensuring they remain firmly in place under various operating conditions. This screw is typically used in applications where vibration and dynamic loads are common, such as in engine mounts, transmission housings, and other high-stress areas. Its functional importance lies in providing a secure and reliable fastening solution that contributes to the overall integrity of the truck’s mechanical systems.

Key Features

The Cummins 3067461 Captive Washer Cap Screw is characterized by several key features that enhance its performance and reliability. Its design includes an integrated washer that ensures consistent sealing and load distribution. The screw is made from high-quality materials, typically heat-treated alloy steel, which provides excellent strength and corrosion resistance. Additionally, the screw features a hexagonal head for easy installation using standard tools, and its threaded design ensures a secure fit in the mating component.

Benefits

Using this Cummins part offers several advantages. The integrated washer simplifies the assembly process by eliminating the need for separate washers, which can be easily lost or misplaced. This feature also ensures consistent sealing, reducing the risk of leaks and enhancing the overall reliability of the fastening. The high-quality material composition of the screw contributes to its durability, making it resistant to corrosion and capable of withstanding high loads and dynamic stresses.

Installation Guidelines

Proper installation of the Cummins 3067461 Captive Washer Cap Screw is crucial for ensuring optimal performance and longevity. To install the screw, first, ensure that the mating surface is clean and free of debris. Use a torque wrench to tighten the screw to the manufacturer’s specified torque settings to avoid over-tightening, which can damage the threads, or under-tightening, which can compromise the fastening. It is also important to use the correct tool for the screw head to prevent damage during installation.

Troubleshooting and Maintenance

Common issues with captive washer cap screws include loosening due to vibration, corrosion, and wear. To troubleshoot these issues, regularly inspect the screws for signs of corrosion or damage. If corrosion is present, clean the affected area and apply a corrosion-resistant coating. If the screw appears worn or damaged, replace it with a new one to maintain the integrity of the fastening. Regular maintenance, including periodic tightening and inspection, can help prolong the lifespan of the Cummins 3067461 screw.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for innovation, quality, and reliability in the automotive and heavy-duty truck industry. The company offers a wide range of products designed to meet the demanding requirements of various applications, ensuring that customers receive high-performance solutions for their needs.

Captive Washer Cap Screw (Part 3067461) in Cummins Engines

The Captive Washer Cap Screw, part number 3067461, is a critical component used in various Cummins engine models. This part is designed to provide secure fastening in applications where vibration and movement are common, ensuring that the components remain tightly secured during operation.

G855 Series Engines

The Captive Washer Cap Screw is utilized in the G855 series engines, including the G855 CM558 and GTA855 CM558 (CM2358) G101. These engines are known for their robust design and reliability, often used in heavy-duty applications. The cap screw ensures that the engine’s internal components are fastened securely, maintaining the integrity of the engine structure under high stress conditions.

N14 Series Engines

In the N14 series engines, the part 3067461 is employed in the N14 CELECT, N14 CELECT PLUS, N14 G, and N14 MECHANICAL models. These engines are widely used in various industries due to their durability and efficiency. The cap screw is essential in these engines for fastening critical components, ensuring that they remain in place even under the most demanding conditions.

NH/NT 855 Engines

The NH/NT 855 engines also incorporate the Captive Washer Cap Screw. This engine series is known for its versatility and performance, making it suitable for a range of applications. The cap screw’s design helps in maintaining the alignment and security of the engine’s components, contributing to the overall reliability of the engine.

QSN14 Series Engines

In the QSN14 series engines, specifically the QSN14 CM876 N103 and QSNT14 CM876 N102 models, the part 3067461 is used to ensure that the engine’s components are securely fastened. These engines are designed for high-performance applications, and the cap screw plays a vital role in maintaining the structural integrity of the engine under intense operational conditions.

The Captive Washer Cap Screw is a versatile and essential component in Cummins engines, providing the necessary security and reliability required for various heavy-duty applications. Its use across different engine series highlights its importance in maintaining the performance and longevity of these engines.

Role of Part 3067461 Captive Washer Cap Screw in Engine Systems

The part 3067461 Captive Washer Cap Screw is integral to the assembly and functionality of various engine components. In the context of the auxiliary pump, this screw ensures secure attachment of the pump to the engine block, maintaining the pump’s alignment and operational efficiency.

For base parts, the screw plays a role in fastening these foundational elements, ensuring structural integrity and proper spacing between components.

In the front gear cover, the screw is used to maintain a seal, preventing oil leaks and ensuring the gear cover remains securely in place during engine operation.

When considering the front gear train accessory drive, the screw helps in attaching accessory drives to the gear train, ensuring smooth transmission of power and reducing the risk of misalignment.

For the lubricating oil mounting pump and the lubricating oil pump, the screw is essential in securing these pumps to their respective mounts, guaranteeing consistent oil flow and pressure within the engine.

Lastly, in the oil pump assembly, the screw ensures that the pump is firmly attached to the engine, facilitating efficient oil circulation throughout the engine’s components.

Overall, the part 3067461 Captive Washer Cap Screw is a key component in maintaining the structural and functional integrity of these engine systems ².

Conclusion

The Cummins 3067461 Captive Washer Cap Screw is a vital component in heavy-duty truck maintenance and engine systems. Its design, featuring an integrated washer and high-quality materials, ensures reliable fastening and durability. Proper installation and maintenance are essential for optimal performance and longevity. This part’s role in various Cummins engine models underscores its importance in maintaining the structural and functional integrity of engine systems.