3067955
Captive Washer Cap Screw
Cummins®

The Captive Washer Cap Screw, specifically Part #3067955 by Cummins, is a component used in the maintenance and assembly of heavy-duty trucks. This screw is designed to provide secure fastening in various applications, ensuring the integrity and reliability of truck components. Cummins, a well-respected manufacturer in the automotive industry, produces this part, leveraging their expertise and commitment to quality ¹.

Basic Concepts of Captive Washer Cap Screws

A Captive Washer Cap Screw is a type of fastener that includes an integrated washer. This design ensures that the washer remains in place during installation, reducing the risk of loss and simplifying the fastening process. The screw typically consists of a threaded shaft, a head for applying torque, and the captive washer, which distributes pressure and prevents damage to the fastened material ².

Purpose of the 3067955 Captive Washer Cap Screw

This Cummins part plays a role in the operation and maintenance of heavy-duty trucks by providing a reliable fastening solution. It is used in applications where secure and consistent clamping force is required, such as in the attachment of panels, brackets, and other components. Its design helps maintain the structural integrity of the truck, ensuring safety and performance.

Key Features

The 3067955 Captive Washer Cap Screw features several design elements that enhance its functionality and reliability. These include a robust threaded shaft for strong engagement, a head designed for easy torque application, and a captive washer that ensures consistent pressure distribution. The material used in its construction is chosen for its durability and resistance to corrosion, making it suitable for the demanding conditions of heavy-duty truck environments.

Benefits

Using the 3067955 Captive Washer Cap Screw offers several advantages. Its integrated washer design simplifies the installation process, reducing the likelihood of washer loss and ensuring consistent clamping force. The screw’s durable construction contributes to its longevity, while its ease of installation saves time during maintenance procedures. Additionally, the secure fastening provided by this screw helps maintain the structural integrity of truck components.

Installation Process

Proper installation of the 3067955 Captive Washer Cap Screw involves several steps to ensure optimal performance and longevity. First, the fastening area should be clean and free of debris. The screw should be aligned with the designated hole, and torque should be applied using the appropriate tool to achieve the recommended tightening specification. It is important to avoid over-tightening, which can damage the screw or the fastened material.

Troubleshooting Common Issues

Common issues associated with Captive Washer Cap Screws include loosening over time, corrosion, and damage to the screw or washer. To address these problems, regular inspections should be conducted to identify any signs of wear or corrosion. If a screw is found to be loose, it should be re-tightened to the specified torque. In cases of significant corrosion or damage, the screw may need to be replaced to ensure continued reliability.

Maintenance Tips

To prolong the service life and maintain the efficiency of the 3067955 Captive Washer Cap Screw, regular maintenance is recommended. This includes periodic inspections for signs of wear, corrosion, or loosening. Cleaning the fastening area and applying a corrosion-resistant coating can help protect the screw from environmental factors. Additionally, ensuring that the screw is properly torqued during installation will contribute to its longevity and performance.

Cummins: Manufacturer Overview

Cummins is a renowned manufacturer in the automotive industry, with a history of producing high-quality components for heavy-duty trucks and other vehicles. The company is known for its commitment to innovation, quality, and customer satisfaction. Cummins’ reputation is built on a foundation of rigorous testing, advanced manufacturing techniques, and a dedication to meeting the needs of their customers in the automotive sector.

Captive Washer Cap Screw 3067955 in Cummins Engines

The Captive Washer Cap Screw 3067955, manufactured by Cummins, is a critical component in various Cummins engine models. This part is designed to secure and stabilize different engine parts, ensuring the integrity and performance of the engine.

G855 and NH/NT 855 Engines

In the G855 and NH/NT 855 engines, the Captive Washer Cap Screw 3067955 is used to fasten components that require a secure and reliable connection. Its design ensures that the washer remains captive, preventing it from being lost during assembly or maintenance.

L10 CELECT and QSK19 CM850 MCRS Engines

For the L10 CELECT and QSK19 CM850 MCRS engines, the Captive Washer Cap Screw 3067955 plays a vital role in maintaining the structural integrity of the engine. This screw is often used in areas where vibration and stress are significant, providing a robust fastening solution.

N14 CELECT PLUS and N14 MECHANICAL Engines

In the N14 CELECT PLUS and N14 MECHANICAL engines, the Captive Washer Cap Screw 3067955 is employed to secure various engine components, including those in the cylinder head and block. This screw’s design ensures that the washer stays in place, enhancing the overall reliability of the engine.

QSN14 CM876 N103 Engine

The QSN14 CM876 N103 engine also utilizes the Captive Washer Cap Screw 3067955 to fasten critical parts. Its use in this engine model ensures that the components remain securely fastened, contributing to the engine’s performance and longevity.

V903 Engine

In the V903 engine, the Captive Washer Cap Screw 3067955 is used to secure various engine components, ensuring that they remain in place under operational stresses. This screw’s design provides a reliable fastening solution, enhancing the engine’s overall performance and durability.

Role of Part 3067955 Captive Washer Cap Screw in Engine Systems

The 3067955 Captive Washer Cap Screw is integral to the secure assembly and operation of various engine components. Its application spans across multiple systems, ensuring the integrity and efficiency of the engine.

Aftercooler Mounting

In the aftercooler mounting system, the 3067955 Captive Washer Cap Screw is used to fasten the aftercooler to the engine frame. This secure attachment is essential for maintaining the structural stability of the aftercooler, which is responsible for cooling the compressed air from the turbocharger before it enters the engine cylinders.

Cooler and Engine Oil Systems

Within the cooler and engine oil systems, this screw plays a significant role in attaching the engine oil cooler and the lubricating oil cooler to their respective mounts. Proper fastening ensures that these coolers remain in place and function efficiently, helping to maintain optimal engine oil temperature and performance.

Full Flow Oil Filter

The 3067955 Captive Washer Cap Screw is also utilized in the full flow oil filter assembly. It secures the filter housing to the engine, ensuring a tight seal that prevents oil leaks and maintains the filter’s effectiveness in removing contaminants from the engine oil.

Instrument and Engine Integration

In the instrument and engine integration, this screw is employed to attach various sensors and instruments to the engine block or other components. Secure fastening is vital for accurate readings and reliable performance of these instruments.

Lubricating Oil (Top Level Assembly) Cooler

For the lubricating oil (top level assembly) cooler, the 3067955 Captive Washer Cap Screw ensures that the cooler is firmly mounted. This is important for the efficient cooling of lubricating oil, which is crucial for reducing friction and wear within the engine.

Manifold and Air Intake

In the manifold and air intake systems, this screw is used to secure components such as the air intake manifold to the engine. Proper attachment ensures that the air intake system operates efficiently, providing the engine with the necessary airflow for combustion.

Particulate Trap System

Finally, in the particulate trap system, the 3067955 Captive Washer Cap Screw is used to secure the trap to the exhaust system. This ensures that the trap remains in place and functions correctly, capturing particulate matter and reducing emissions.

Conclusion

The 3067955 Captive Washer Cap Screw by Cummins is a vital component in the maintenance and assembly of heavy-duty trucks and various Cummins engine models. Its design, featuring an integrated washer, ensures secure and reliable fastening, contributing to the structural integrity and performance of the engine. Regular maintenance and proper installation are essential to maximize the longevity and efficiency of this part.