3019573
Captive Washer Cap Screw
Cummins®

The 3019573 Captive Washer Cap Screw, manufactured by Cummins, is a specialized fastener designed for use in commercial trucks. Cummins, a well-established name in the automotive industry, is known for its robust and reliable components. This particular screw is integral to the assembly and maintenance of various truck components, ensuring secure and durable connections.

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 driving, and an integrated washer that provides a uniform distribution of clamping force. This type of screw is commonly used in applications where consistent and reliable fastening is required ¹.

Purpose of the 3019573 Captive Washer Cap Screw

The 3019573 Captive Washer Cap Screw plays a role in the operation of a truck by securing various components and assemblies. It is used to fasten parts that require a strong, consistent hold, such as engine components, chassis parts, and other critical assemblies. The integrated washer ensures even pressure distribution, which is vital for maintaining the integrity of the fastened components ².

Key Features

The 3019573 Captive Washer Cap Screw is designed with several key features that enhance its performance and reliability. It is constructed from high-strength materials, ensuring durability under demanding conditions. The screw’s design includes a precisely machined thread and a robust head for easy installation using standard tools. Additionally, the integrated washer is crafted to provide optimal clamping force without damaging the fastened surfaces ³.

Benefits

Using the 3019573 Captive Washer Cap Screw offers several advantages. Its design simplifies the installation process by eliminating the need for separate washers, which reduces the risk of washer loss and ensures consistent clamping force. The high-strength materials used in its construction contribute to improved reliability and longevity. Additionally, the screw’s ease of installation and robust performance make it a preferred choice for commercial truck applications.

Installation Process

Proper installation of the 3019573 Captive Washer Cap Screw involves several steps. First, ensure that the surfaces to be fastened are clean and free of debris. Use a torque wrench to install the screw, applying the recommended torque specifications to achieve the desired clamping force without over-tightening. It is important to use the correct tools to avoid damaging the screw or the fastened components.

Common Applications

The 3019573 Captive Washer Cap Screw is commonly used in various applications within commercial trucks. It is often found in engine assemblies, where it secures components such as cylinder heads and valve covers. Additionally, it is used in chassis applications to fasten parts like brackets and supports. Its versatility and reliability make it a staple in truck maintenance and assembly.

Troubleshooting and Maintenance

To ensure optimal performance, it is important to periodically inspect the 3019573 Captive Washer Cap Screw for signs of wear or damage. Common issues include corrosion, which can be addressed by cleaning the screw and applying a protective coating. If the screw becomes loose, it should be re-tightened to the specified torque. Regular maintenance practices, such as lubrication and inspection, will help prolong the screw’s service life.

Cummins Overview

Cummins is a leading manufacturer in the commercial truck industry, known for its high-quality engines and components. Founded in 1919, Cummins has a long history of innovation and excellence. The company offers a wide range of products, including engines, filtration systems, and aftermarket parts, all designed to meet the demanding requirements of commercial trucking. Cummins’ reputation for reliability and performance makes its components, like the 3019573 Captive Washer Cap Screw, a trusted choice for truck manufacturers and maintenance professionals.

Role of Part 3019573 Captive Washer Cap Screw in Engine Systems

The 3019573 Captive Washer Cap Screw is integral to the secure assembly and operation of various engine components. It ensures that parts remain firmly in place, contributing to the overall stability and efficiency of the engine system.

A.C. Mounting Bracket

In air conditioning systems, the A.C. mounting bracket relies on the 3019573 screw to attach the compressor to the engine block. This secure attachment is essential for the compressor’s stable operation and efficient cooling performance.

Aftercooler Mounting

For engines equipped with aftercoolers, the aftercooler mounting uses the 3019573 screw to fasten the aftercooler to the engine. This ensures that the aftercooler remains in the correct position, allowing for optimal air-to-air heat exchange and improved engine performance.

Air Cleaner

The air cleaner assembly is secured to the engine using the 3019573 screw. This attachment ensures that the air cleaner remains stable, providing a consistent airflow to the engine and maintaining filtration efficiency.

Auxiliary Mounting Pump

In systems with auxiliary pumps, the 3019573 screw is used to mount these pumps to the engine. This secure attachment ensures that the pump operates efficiently, providing the necessary fluid flow for engine lubrication or cooling.

Bilge Pump

For marine engines, the bilge pump is mounted using the 3019573 screw. This ensures that the pump remains firmly in place, allowing it to effectively remove water from the bilge and prevent engine damage.

Drive Accessory

Drive accessories, such as alternators or power steering pumps, are often secured to the engine using the 3019573 screw. This ensures that these accessories remain stable during operation, contributing to their reliable performance.

Drive Arrangement Fan

The drive arrangement fan, which helps cool the engine, is mounted using the 3019573 screw. This secure attachment ensures that the fan operates efficiently, maintaining optimal engine temperature.

Fan Bracket

The fan bracket, which supports the engine cooling fan, relies on the 3019573 screw for a stable connection to the engine. This ensures that the fan can operate effectively, providing necessary cooling.

Fan Shaft Mounting Bracket

The fan shaft mounting bracket uses the 3019573 screw to secure the fan shaft to the engine. This ensures that the fan shaft remains in the correct position, allowing for efficient engine cooling.

Flywheel Mounting Housing

The flywheel mounting housing, which connects the flywheel to the engine, uses the 3019573 screw for a secure attachment. This ensures that the flywheel operates smoothly, contributing to engine efficiency.

Front Engine Guard

The front engine guard, which protects the engine from debris, is mounted using the 3019573 screw. This ensures that the guard remains in place, providing effective protection for the engine.

Fuel Pump Conversion Kit

In fuel systems, the fuel pump conversion kit may use the 3019573 screw to secure the fuel pump to the engine. This ensures that the fuel pump operates efficiently, providing a consistent fuel supply.

Hydraulic Mounting Pump

Hydraulic systems often use the 3019573 screw to mount hydraulic pumps to the engine. This secure attachment ensures that the pump operates reliably, providing the necessary hydraulic fluid flow.

Hydraulic Pump Mounting

Similarly, hydraulic pump mounting brackets use the 3019573 screw to secure the pump to the engine. This ensures that the pump remains stable, contributing to its efficient operation.

Oil Gauge Mounting Bracket

The oil gauge mounting bracket, which holds the oil pressure gauge, uses the 3019573 screw for a secure attachment to the engine. This ensures that the gauge operates accurately, providing essential engine monitoring.

Oil Pan Mounting

The oil pan, which holds the engine oil, is often mounted using the 3019573 screw. This ensures that the oil pan remains in place, allowing for effective oil circulation and engine lubrication.

Performance Parts

Various performance parts, such as headers or intake manifolds, may use the 3019573 screw for secure attachment to the engine. This ensures that these parts operate efficiently, contributing to improved engine performance.

Raw Water Pump

In marine engines, the raw water pump is mounted using the 3019573 screw. This ensures that the pump remains stable, allowing for effective cooling of the engine.

Rear Gear Mounting Plate

The rear gear mounting plate, which supports the rear gears in the engine, uses the 3019573 screw for a secure attachment. This ensures that the gears operate smoothly, contributing to engine efficiency.

Rear Hydraulic Pump

Rear hydraulic pumps are often mounted using the 3019573 screw. This ensures that the pump remains stable, allowing for reliable hydraulic fluid flow.

Reverse Mounting Gear

The reverse mounting gear, which allows for reverse operation in some engines, uses the 3019573 screw for a secure attachment. This ensures that the gear operates efficiently, contributing to smooth reverse functionality.

Shipping Bracket Mounting

Shipping brackets, used to secure engines during transport, rely on the 3019573 screw for a stable connection. This ensures that the engine remains secure during shipping, preventing damage.

Turbocharger Mounting

Turbochargers are often mounted using the 3019573 screw. This ensures that the turbocharger remains stable, allowing for efficient air compression and improved engine performance.

Vibration Damper

The vibration damper, which reduces engine vibrations, is mounted using the 3019573 screw. This ensures that the damper operates effectively, contributing to a smoother engine operation.

Water Mounting Pump

Water pumps, which circulate coolant through the engine, are often mounted using the 3019573 screw. This ensures that the pump remains stable, allowing for effective coolant circulation and engine cooling.

Conclusion

The 3019573 Captive Washer Cap Screw is a critical component in the assembly and maintenance of commercial trucks. Its design, featuring an integrated washer, ensures consistent and reliable fastening, which is essential for the secure operation of various engine and chassis components. The high-strength materials and precise machining of this Cummins part contribute to its durability and performance under demanding conditions. Proper installation and regular maintenance are key to ensuring the longevity and reliability of the 3019573 screw in commercial truck applications.