3892692
Captive Washer Cap Screw
Cummins®

Introduction

The Cummins 3892692 Captive Washer Cap Screw is a specialized fastener designed for heavy-duty truck applications. This component ensures the secure assembly of various truck components, contributing to the vehicle’s reliability and performance. Its design incorporates a captive washer, which remains attached to the screw, simplifying the installation process and reducing the likelihood of washer loss during assembly.

Basic Concepts of Captive Washer Cap Screws

Captive washer cap screws are fasteners that include an integrated washer held in place by a slot or notch in the screw’s shank. This design ensures that the washer stays aligned with the screw during installation, providing consistent and reliable clamping force. These screws are commonly used in mechanical assemblies where precision and ease of installation are important. They are particularly beneficial in environments where washer loss could lead to inefficient or improper assembly ¹.

Purpose of the Cummins 3892692 Captive Washer Cap Screw

The Cummins 3892692 Captive Washer Cap Screw secures critical components in heavy-duty trucks, ensuring they remain firmly in place under demanding conditions. This screw helps maintain the integrity of truck assemblies, contributing to the vehicle’s durability and performance.

Key Features

The Cummins 3892692 Captive Washer Cap Screw features a robust design that includes a high-strength material, typically alloy steel, to withstand heavy-duty use. The captive washer is securely attached to the screw, ensuring it remains in place during installation. The screw also boasts a precision-machined thread and a hex head for easy tightening with standard tools. Additionally, the screw is coated to resist corrosion, enhancing its longevity in harsh environments.

Benefits

Using the Cummins 3892692 Captive Washer Cap Screw offers several advantages. The integrated washer simplifies the installation process, reducing the risk of washer loss and ensuring consistent clamping force. The high-strength material and corrosion-resistant coating enhance the screw’s reliability and durability. Furthermore, the precise manufacturing ensures a secure fit, contributing to the overall performance and longevity of the truck’s components.

Installation Process

Installing the Cummins 3892692 Captive Washer Cap Screw involves several steps to ensure proper assembly. Begin by aligning the screw with the designated hole in the component. Use a torque wrench to tighten the screw to the manufacturer’s specified torque settings, ensuring a secure fit without over-tightening. It is important to use the correct tools to avoid damaging the screw or the component being fastened.

Common Applications

The Cummins 3892692 Captive Washer Cap Screw is typically used in various heavy-duty truck systems and components. Common applications include securing engine components, transmission parts, and chassis assemblies. Its versatile design makes it suitable for a wide range of fastening tasks within the truck’s mechanical systems.

Troubleshooting and Maintenance

To ensure the longevity and optimal performance of the Cummins 3892692 Captive Washer Cap Screw, regular maintenance is recommended. Inspect the screw and surrounding components for signs of wear or corrosion. If corrosion is detected, clean the area and reapply a corrosion-resistant coating if necessary. Replace the screw if it shows signs of significant wear or damage to maintain the integrity of the assembly.

Manufacturer Information - Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration systems, and related technologies. With a strong reputation in the heavy-duty truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range includes components and systems designed to enhance the performance, reliability, and efficiency of heavy-duty vehicles.

Cummins Engines Utilizing 3892692

The Captive Washer Cap Screw part number 3892692, manufactured by Cummins, is used across various Cummins engine models. This part is designed to provide secure fastening in applications where a captive washer is necessary to prevent the screw from loosening due to vibration or other factors.

ISM Series Engines

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

The ISM series engines utilize the 3892692 screw in various applications. These engines are known for their robust performance and reliability, often used in heavy-duty applications such as construction and mining equipment.

ISX Series Engines

• ISX CM570
• ISX CM870
• ISX CM871
• ISX15 CM2250
• ISX15 CM2250 SN
• ISX15 CM2350 X101

The ISX series engines incorporate the 3892692 screw. These engines are designed for high-performance applications and are commonly found in on-highway and vocational trucks.

L10 Series Engines

• L10 CELECT
• L10 GAS

The L10 series engines use the 3892692 screw in their assembly. These engines are typically used in medium-duty applications, providing a balance of power and efficiency.

M11 Series Engines

• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

The M11 series engines incorporate the 3892692 screw in their design. These engines are often used in medium-duty applications, offering a range of configurations to meet various needs.

QSL9 Series Engines

• QSL9 G CM558

The QSL9 G CM558 engine utilizes the 3892692 screw in its assembly. This engine is designed for specific applications where its unique features are advantageous.

QSM11 Series Engines

• QSM11 CM570
• QSM11 CM876

The QSM11 series engines use the 3892692 screw. These engines are engineered for specific vocational applications, providing reliable performance in demanding environments.

QSX15 Series Engines

• QSX15 CM2250
• QSX15 CM2250 ECF
• QSX15 CM2350 X105

The QSX15 series engines incorporate the 3892692 screw. These engines are designed for high-performance applications, often found in on-highway and vocational trucks.

X15 Series Engines

• X15 CM2350 X116B
• X15 CM2350 X123B
• X15 CM2450 X134B

The X15 series engines use the 3892692 screw in their construction. These engines are designed for high-performance applications, often used in on-highway and vocational trucks.

Role of Part 3892692 Captive Washer Cap Screw in Engine Systems

The part 3892692 Captive Washer Cap Screw is integral to the secure assembly and operation of various engine components. Its application ensures the reliable fastening of parts that are subject to high stress and dynamic forces.

Turbocharger Arrangement

In the turbocharger arrangement, the Captive Washer Cap Screw is used to fasten the turbocharger to its mounting bracket. This secure attachment is vital for maintaining the turbocharger’s alignment and operational integrity, especially under the high-speed rotation and thermal stresses it encounters.

Cooler and Engine Oil Systems

Within the cooler and engine oil systems, these screws are employed to attach the cooler to the engine block or other structural components. This ensures a leak-proof connection, which is essential for maintaining the efficiency of the cooling system and the proper circulation of engine oil.

Drive and Fan Components

For the drive and fan components, the Captive Washer Cap Screw plays a role in securing the fan to its housing or the drive mechanism to the engine. This attachment is necessary to withstand the centrifugal forces generated during operation, ensuring the fan and drive components remain firmly in place.

Mounting Applications

Across various mounting applications—such as the air intake manifold, alternator, and intake manifold—these screws provide the necessary tension and security to keep these components affixed to the engine block or other structural parts. This is particularly important in environments where vibrations and thermal expansion could otherwise loosen standard fasteners.

Corrosion Resistance

The design of the Captive Washer Cap Screw, with its integrated washer, offers enhanced resistance to corrosion. This is beneficial in mounting the pan and oil components, where exposure to moisture and chemicals could compromise the integrity of standard fasteners over time.

Electrical Components

In electrical applications, such as securing resistors or other components within the engine package, the screw ensures a stable and corrosion-resistant connection. This is important for maintaining the reliability of electrical circuits within the engine environment.

Product Installation

During product installation, the use of Captive Washer Cap Screws simplifies the assembly process by reducing the number of parts required and ensuring a consistent fastening force across multiple attachment points. This contributes to a more efficient and reliable installation procedure.

Conclusion

The Cummins 3892692 Captive Washer Cap Screw is a critical component in heavy-duty truck applications, ensuring the secure assembly and reliable operation of various engine components. Its robust design, high-strength material, and corrosion-resistant coating make it an essential part for maintaining the durability and performance of heavy-duty vehicles.