3609817
Captive Washer Cap Screw
Cummins®

The Cummins Captive Washer Cap Screw 3609817 is a specialized fastener designed for use in commercial trucks. Cummins, a well-established name in the commercial truck industry, produces a range of components that enhance the performance and reliability of heavy-duty vehicles. This part is integral to various truck assemblies, ensuring secure and efficient fastening solutions.

Basic Concepts of Captive Washer Cap Screws

A Captive Washer Cap Screw is a type of fastener that includes an integrated washer, which is held in place by a groove or step in the screw’s shank. This design ensures that the washer remains attached to the screw, reducing the risk of loss during installation and providing consistent clamping force. These screws are commonly used in mechanical assemblies where vibration resistance and secure fastening are required ¹.

Purpose of the 3609817 Captive Washer Cap Screw

The 3609817 Captive Washer Cap Screw plays a role in the operation and maintenance of commercial trucks by providing a reliable fastening solution in various assemblies. It is particularly useful in applications where consistent pressure distribution and vibration resistance are necessary. This screw is often used in engine components, chassis parts, and other critical areas where secure fastening is required to maintain the integrity and performance of the truck ².

Key Features

The 3609817 Captive Washer Cap Screw features a design that includes an integrated washer, which is held in place by a groove in the screw’s shank. This design ensures that the washer does not become separated during installation. The screw is made from high-quality materials, typically steel, which provides excellent strength and durability. Additionally, the screw may have a coated finish to enhance corrosion resistance, ensuring longevity in harsh operating environments ³.

Benefits

Using the 3609817 Captive Washer Cap Screw offers several advantages in truck maintenance and operation. The integrated washer design simplifies the installation process, reducing the risk of washer loss and ensuring consistent clamping force. The high-quality material composition enhances the screw’s reliability and durability, while the coated finish provides added protection against corrosion. These features contribute to improved performance and longevity of the fastening solution.

Installation Process

To install the 3609817 Captive Washer Cap Screw, begin by ensuring that the mating surfaces are clean and free of debris. Use a torque wrench to tighten the screw to the manufacturer’s specified torque settings, ensuring that the correct clamping force is achieved without over-tightening. It is important to use the appropriate tools and follow the recommended installation procedures to ensure a secure and reliable fastening.

Troubleshooting and Maintenance

Common issues associated with the 3609817 Captive Washer Cap Screw include loosening due to vibration and corrosion. To identify problems, regularly inspect the screw and surrounding components for signs of wear, corrosion, or loosening. Maintenance tips include reapplying the specified torque periodically and ensuring that the screw is protected from moisture and contaminants. Proper maintenance will help ensure the longevity and optimal performance of the fastening solution.

Safety Considerations

When handling and installing the 3609817 Captive Washer Cap Screw, it is important to observe several safety guidelines. Wear appropriate personal protective equipment, such as gloves and safety glasses, to protect against injury. Ensure that the work area is clean and free of hazards. Follow the recommended torque settings to avoid over-tightening, which can lead to damage or failure of the screw or surrounding components. Always refer to the manufacturer’s instructions for specific safety guidelines and precautions.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. Founded in 1919, Cummins has a long-standing reputation for producing high-quality, reliable components for commercial trucks and other heavy-duty applications. The company’s product range includes engines, powertrain components, and aftermarket parts, all designed to enhance the performance and reliability of commercial vehicles. Cummins is known for its commitment to innovation, quality, and customer satisfaction in the commercial truck industry.

Captive Washer Cap Screw 3609817 in Cummins Engines

The Captive Washer Cap Screw 3609817, manufactured by Cummins, is a critical component in several of their engine models. This part is designed to secure various engine parts, ensuring stability and reliability during operation.

K50, N14 CELECT PLUS, QSK50 CM2150 K107, QSK50 CM2150 MCRS, QSK50 CM2350 K108

In the K50 and N14 CELECT PLUS engines, the 3609817 screw is used to fasten components that require precise alignment and secure fastening. This ensures that the engine operates smoothly and efficiently.

For the QSK50 CM2150 K107 and QSK50 CM2150 MCRS engines, the screw plays a similar role, securing parts that are critical to the engine’s structural integrity and performance. The use of this screw in these models highlights its importance in maintaining the engine’s operational standards.

In the QSK50 CM2350 K108 engine, the 3609817 screw is also utilized to ensure that all fastened components remain in place under varying operational conditions. This is crucial for the longevity and reliability of the engine.

Overall, the Captive Washer Cap Screw 3609817 is a vital part in these Cummins engines, providing the necessary security and stability for various engine components.

Role of Part 3609817 Captive Washer Cap Screw in Engine Systems

The 3609817 Captive Washer Cap Screw is integral to the secure assembly and operation of various engine components. Its application ensures that connections remain tight and secure, which is essential for the reliable performance of the engine system.

Electronic Control Module Wiring Harness

In the electronic control module wiring harness, the 3609817 Captive Washer Cap Screw is used to secure the wiring harness to the engine block or other structural components. This ensures that the harness remains in place and is not subjected to undue stress or movement that could lead to wire damage or disconnection.

Hardware 12V Valve/Electric Kit and Hardware 24V Valve/Electric Kit

For both the 12V and 24V valve/electric kits, this screw plays a role in mounting the valve components to the engine. It ensures that the valves are held firmly in place, allowing for precise control of fuel or air flow as required by the engine’s operation.

Centinel Make-Up Kit and HHP 12V VLV/ELEC Kit

In these kits, the screw is employed to secure sensors and control units. Proper mounting is essential for accurate readings and reliable operation of the centrinel make-up system and the HHP 12V valve/electric components.

HHP 24V VLV/ELEC Kit

Similar to its use in the 12V kit, in the 24V valve/electric kit, the screw ensures that all electrical and mechanical components are securely fastened. This is vital for maintaining the integrity of the high-voltage system and ensuring safe and efficient operation.

QKS Valve & Mounting

The QKS valve and its mounting require secure fastening to prevent any leakage or misalignment. The 3609817 Captive Washer Cap Screw provides the necessary stability and security for this critical component.

Marine Gear Oil Cooler Plumbing

In marine applications, where vibrations and environmental conditions can be severe, the screw ensures that the oil cooler plumbing remains intact. This is important for maintaining optimal oil temperature and engine performance.

Multiple Key-Off Kit

This kit often includes various sensors and control units that need to be securely mounted. The screw ensures that these components remain in place, providing consistent and reliable data to the engine’s control system.

N14 12V Pressure-Time Centinel Kit and N14 24V Hardware-Pressure-Time Valve/Mounting Kit

In these pressure-time centrinel kits, the screw is used to secure pressure sensors and valves. Accurate pressure readings are essential for the engine’s fuel injection system, and secure mounting ensures these readings are consistent.

Nitrogen Oxide Sensor Location

The nitrogen oxide sensor must be accurately positioned and securely mounted to provide reliable emissions data. The screw ensures that the sensor remains in the correct location and operates under all conditions.

Oil Replenishing System

In systems designed to replenish oil levels automatically, the screw is used to secure components such as pumps and valves. This ensures that the system functions correctly and maintains the engine’s lubrication needs.

Turbocharger Coolant Plumbing

The screw is also vital in securing the turbocharger coolant plumbing. This ensures that the turbocharger remains cool and operates efficiently, contributing to overall engine performance and longevity.

Conclusion

The Cummins 3609817 Captive Washer Cap Screw is a critical component in the maintenance and operation of commercial trucks. Its design, featuring an integrated washer and high-quality materials, ensures reliable and secure fastening in various engine and chassis applications. Proper installation, maintenance, and adherence to safety guidelines are essential for maximizing the performance and longevity of this fastening solution.