3067984
Studded Captive Washer Screw
Cummins®

Introduction

The Cummins 3067984 Studded Captive Washer Screw is a specialized fastener designed for use in commercial trucks. Its primary function is to secure various components within the truck’s engine and chassis systems, ensuring both structural integrity and reliable performance under demanding conditions.

Basic Concepts

A studded captive washer screw is a type of fastener that incorporates a washer directly attached to the screw. This design ensures that the washer remains in place during installation, reducing the risk of loss and enhancing the fastening system’s overall effectiveness. The captive washer distributes the load more evenly across the fastened surface, which helps to prevent damage and loosening over time ¹.

Purpose and Role in Truck Operation

In the context of commercial truck operations, the Studded Captive Washer Screw plays a significant role in securing critical components. It is often used in applications where vibration and dynamic loads are common, such as engine mounts, chassis brackets, and other structural attachments. By providing a secure and stable connection, this screw helps maintain the truck’s structural integrity and ensures that components remain firmly in place during operation ².

Key Features

The 3067984 features a robust design that includes a high-strength steel construction and a zinc-plated finish to resist corrosion. The captive washer is integral to the screw, ensuring it stays in position during installation. Additionally, the screw is designed to withstand high tensile loads, making it suitable for heavy-duty applications ³.

Benefits

The advantages of using the 3067984 include improved durability, enhanced resistance to vibration, and better load distribution. The captive washer design ensures that the load is spread more evenly across the fastened surface, reducing the risk of component failure. Additionally, the screw’s corrosion-resistant coating extends its service life, even in harsh operating environments ⁴.

Installation Process

Proper installation of the 3067984 involves several steps to ensure a secure and lasting connection. Begin by cleaning the fastening area to remove any debris or corrosion. Next, align the screw with the designated hole and use a torque wrench to tighten it to the manufacturer’s specified torque settings. It is important to avoid over-tightening, which can strip the threads or damage the fastened components ⁵.

Troubleshooting and Maintenance

Regular inspection of the 3067984 is recommended to identify any signs of wear, corrosion, or fastener failure. Common issues include loosening due to vibration, corrosion from exposure to moisture, and damage from over-tightening. Addressing these issues promptly can prevent more significant problems and ensure the continued reliability of the truck’s components ⁶.

Safety Considerations

When working with the 3067984, it is important to observe several safety protocols. These include wearing appropriate personal protective equipment (PPE), such as gloves and safety glasses, to protect against injury. Additionally, ensure that the work area is clean and free from hazards, and follow proper handling, storage, and disposal practices to maintain a safe working environment ⁷.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions technologies. With a strong reputation in the commercial truck industry, Cummins is known for its innovative products and commitment to quality and reliability. The company’s extensive product portfolio includes a variety of fasteners and components designed to meet the demanding requirements of heavy-duty applications.

Studded Captive Washer Screw (Part 3067984) in Cummins Engines

The Studded Captive Washer Screw, identified by the part number 3067984, is a critical component in several Cummins engine models. This part is integral to the assembly and maintenance of these engines, ensuring secure fastening and stability.

G855

In the G855 engine, the Studded Captive Washer Screw is used in various applications where a robust and reliable fastening method is required. Its design ensures that the screw remains securely in place, even under high-stress conditions.

N14 CELECT PLUS and N14 MECHANICAL

For both the N14 CELECT PLUS and N14 MECHANICAL engines, the Studded Captive Washer Screw plays a pivotal role in maintaining the integrity of the engine’s structure. This screw is particularly important in areas where vibration and movement are common, providing a steadfast connection that can withstand these forces.

QSK19 CM850 MCRS and QSN14 CM876 N103

In the QSK19 CM850 MCRS and QSN14 CM876 N103 engines, the Studded Captive Washer Screw is utilized in key locations to ensure the secure attachment of various components. Its studded design offers enhanced grip and resistance to loosening, which is crucial for the operational safety and efficiency of these engines.

The Studded Captive Washer Screw is a testament to Cummins’ commitment to quality and durability, providing a reliable fastening solution across a range of their engine models.

Role of Part 3067984 Studded Captive Washer Screw in Engine Systems

In the context of engine systems, the 3067984 is integral to the secure assembly and operation of various components.

Engine Oil Cooler

The engine oil cooler relies on secure mounting to ensure efficient heat exchange and prevent leaks. The studded captive washer screw plays a significant role in this by providing a robust connection between the cooler and its mounting bracket. This secure attachment is essential for maintaining the structural integrity of the cooler, allowing it to function optimally under varying engine operating conditions.

Lubricating Oil Cooler/Filter Mounting

For the lubricating oil cooler/filter, the studded captive washer screw ensures that the cooler or filter is firmly mounted to the engine or chassis. This secure fit is vital for the consistent flow of oil through the cooler or filter, which is necessary for maintaining the proper viscosity and cleanliness of the lubricating oil. A stable mounting also prevents vibrations that could lead to leaks or reduced efficiency.

Turbocharger Arrangement

In turbocharger arrangements, the studded captive washer screw is used to secure various components such as the turbocharger housing, intercooler pipes, and mounting brackets. This secure fastening is important for maintaining the turbocharger’s alignment and operational stability. It ensures that the turbocharger can withstand the high pressures and temperatures it encounters, contributing to the overall performance and reliability of the engine system.

Conclusion

The Cummins 3067984 Studded Captive Washer Screw is a vital component in the maintenance and operation of commercial trucks and Cummins engines. Its robust design, resistance to corrosion, and ability to withstand high tensile loads make it an essential fastener for securing critical components under demanding conditions. Proper installation, regular maintenance, and adherence to safety protocols are crucial for ensuring the longevity and reliability of this part in heavy-duty applications.