3069633
Captive Washer Cap Screw
Cummins®

The Captive Washer Cap Screw, specifically the Cummins part number 3069633, is a component utilized in various applications within the automotive industry, particularly in heavy-duty truck maintenance. Manufactured by Cummins, a reputable name in the industry, this part is designed to meet the demanding requirements of truck operations. It plays a role in securing components and providing a seal, which is vital for the integrity and performance of truck systems ³.

Basic Concepts of Captive Washer Cap Screws

A Captive Washer Cap Screw consists of a screw with an integrated washer that remains attached throughout the fastening process. This design ensures that the washer does not become misplaced, which can be a common issue with traditional screws and washers. The washer serves to distribute the load of the screw, preventing damage to the fastened material and providing a seal that helps prevent leaks. In the automotive industry, these screws are used in applications where both secure fastening and sealing are required ⁴.

Purpose of the 3069633 Captive Washer Cap Screw in Truck Operations

The 3069633 Captive Washer Cap Screw by Cummins is employed in various components and systems within heavy-duty trucks. It plays a role in securing parts that are subject to vibration and movement, such as engine components, fuel system parts, and chassis elements. The integrated washer ensures a tight seal, which is particularly important in applications where fluid leakage could lead to performance issues or safety hazards ¹.

Key Features of the 3069633 Captive Washer Cap Screw

The 3069633 Captive Washer Cap Screw is constructed with features that enhance its performance and durability. It is made from high-strength materials to withstand the rigors of truck operations. The screw has a specific thread type that provides a secure fit in the corresponding components. Additionally, the design of the integrated washer is tailored to offer optimal sealing capabilities, ensuring that the fastened components remain secure and leak-free ².

Benefits of Using the 3069633 Captive Washer Cap Screw

The use of the 3069633 Captive Washer Cap Screw offers several advantages. The integrated washer simplifies the installation process, reducing the risk of washer loss and ensuring consistent sealing. The screw’s resistance to vibration and corrosion contributes to the longevity of the fastening and the overall reliability of the truck’s systems. These benefits help maintain the efficiency and safety of truck operations ³.

Installation and Usage Guidelines

Proper installation of the 3069633 Captive Washer Cap Screw involves following specific torque specifications to ensure a secure fastening without over-tightening, which could damage the components or the screw itself. It is important to use the correct tools and to apply even pressure when tightening the screw. Best practices include inspecting the screw and washer for any signs of wear or damage before installation and ensuring that the mating surfaces are clean and free of debris ⁴.

Troubleshooting Common Issues

Common issues with Captive Washer Cap Screws may include leakage or loosening over time. If leakage is detected, it may be necessary to inspect the washer for damage or deformation. Loosening can often be addressed by re-tightening the screw to the specified torque, but if the issue persists, it may indicate a need for replacement. Regular inspection and maintenance can help identify and resolve these issues before they lead to more significant problems ¹.

Maintenance Tips

Regular maintenance of the 3069633 Captive Washer Cap Screw involves periodic inspection for signs of wear, corrosion, or damage. Cleaning the screw and washer, as well as the surrounding area, can prevent the buildup of contaminants that may affect performance. Lubrication may be applied to the threads, following manufacturer recommendations, to facilitate easier installation and removal in the future and to reduce the risk of seizing ².

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins has established a strong reputation in the automotive industry. The company’s product range includes a variety of components and systems that are integral to the performance and reliability of vehicles, particularly in the heavy-duty truck sector ³.

Captive Washer Cap Screw 3069633 in Cummins Engines

The Captive Washer Cap Screw 3069633, manufactured by Cummins, is a critical component in several of their engine models. This part is integral to the assembly and maintenance of the engines, ensuring secure fastening and stability. Here is how it fits into various Cummins engines:

G855

In the G855 engine, the Captive Washer Cap Screw 3069633 is used to secure various components, ensuring that parts remain tightly fastened under operational stresses. Its design allows for easy installation and removal, which is crucial during maintenance procedures ⁴.

KTA19GC CM558

The KTA19GC CM558 engine utilizes the Captive Washer Cap Screw 3069633 to maintain the integrity of its structural components. This screw is particularly important in areas where vibration and high stress are common, providing a reliable fastening solution ¹.

N14 CELECT PLUS and N14 MECHANICAL

Both the N14 CELECT PLUS and N14 MECHANICAL engines incorporate the Captive Washer Cap Screw 3069633 in their design. This screw is essential for securing various parts, ensuring that the engine operates smoothly and efficiently. Its use in these engines highlights its versatility and importance in maintaining engine stability ².

QSK19 CM850 MCRS, QSN14 CM876 N103, and QSNT14 CM876 N102

In the QSK19 CM850 MCRS, QSN14 CM876 N103, and QSNT14 CM876 N102 engines, the Captive Washer Cap Screw 3069633 plays a pivotal role in securing multiple components. Its design ensures that parts remain firmly attached, even under the demanding conditions these engines operate in. This screw is a testament to Cummins’ commitment to quality and reliability in their engine designs ³.

Role of Part 3069633 Captive Washer Cap Screw in Engine Systems

The Part 3069633 Captive Washer Cap Screw is integral to the secure assembly and operation of various engine components. It is utilized in the arrangement of the lifting bracket and the front lifting mounting bracket, ensuring these components are firmly attached to the engine structure. This secure attachment is vital for the stability and integrity of the engine during operation.

In the drive system, the screw is employed to fasten the fan to its housing, maintaining the alignment and balance necessary for efficient air circulation. This is particularly important in the heat exchanger where consistent airflow is required to dissipate heat effectively.

The screw also plays a role in the full flow oil filter system, where it secures the filter to its housing. This ensures that the filter remains in place and functions correctly, contributing to the overall efficiency of the oil filtration process.

Additionally, the Part 3069633 is used in the rear lifting mounting bracket and the guard package system. In these applications, it ensures that the guard and bracket are securely mounted, protecting other engine components from debris and ensuring the structural integrity of the engine assembly.

Overall, the Part 3069633 Captive Washer Cap Screw is a key component in maintaining the secure and efficient operation of various engine systems ⁴.

Conclusion

The 3069633 Captive Washer Cap Screw by Cummins is a vital component in the maintenance and operation of heavy-duty trucks and engines. Its design, which includes an integrated washer, ensures secure fastening and sealing, which are critical for the performance and safety of truck systems. Proper installation, regular maintenance, and timely troubleshooting of common issues are essential to maximize the benefits of this Cummins part. Cummins’ reputation for quality and innovation is reflected in the design and functionality of the 3069633, making it a reliable choice for securing various engine components.