4096713
Captive Washer Cap Screw
Cummins®

The Captive Washer Cap Screw Part #4096713 by Cummins is a specialized fastener designed for use in commercial truck maintenance. Cummins, a renowned manufacturer in the diesel engine and power generation industries, produces this component to meet the demanding requirements of heavy-duty applications. This screw is integral to ensuring the reliability and efficiency of truck components, playing a significant role in various mechanical assemblies.

Basic Concepts and Functionality

A Captive Washer Cap Screw is a type of fastener that incorporates a washer directly into the screw design. This integration eliminates the need for a separate washer during assembly, streamlining the process and reducing the risk of washer loss or misplacement. The Captive Washer Cap Screw operates by securing two or more components together while the integrated washer distributes the load, preventing damage to the surfaces and enhancing the seal between the joined parts. This design is particularly beneficial in applications where vibration and dynamic loads are common, as it helps maintain a consistent and secure connection ¹.

Role in Truck Operation

The 4096713 Captive Washer Cap Screw is utilized in the operation and maintenance of commercial trucks to secure various components, ensuring they remain firmly in place under operational stress. This screw contributes to the overall functionality and reliability of truck parts by providing a stable and durable connection. Its role is vital in applications where components are subject to significant vibration, such as in engine mounts, exhaust systems, and chassis assemblies. By maintaining a secure fit, the screw helps prevent loosening, which could lead to component failure or increased wear ².

Key Features

The 4096713 Captive Washer Cap Screw boasts several key features that enhance its performance and durability. It is constructed from high-strength materials, typically alloy steel, to withstand the rigors of heavy-duty use. The screw features a coarse thread type, which provides excellent holding power and ease of installation. Additionally, the design includes a captive washer that is permanently attached to the screw, ensuring it cannot be lost during assembly or operation. This feature not only simplifies the installation process but also ensures consistent performance over time ³.

Benefits

Using the 4096713 Captive Washer Cap Screw offers several advantages. The integrated washer design improves assembly efficiency by eliminating the need for a separate washer, reducing the risk of errors and speeding up the process. The washer also enhances sealing capabilities, providing a more secure connection that resists leakage and environmental contaminants. Furthermore, the screw’s design offers increased resistance to vibration and loosening, ensuring that components remain securely fastened even under dynamic conditions. This reliability is crucial for maintaining the integrity and performance of commercial truck systems.

Troubleshooting and Maintenance

Common issues with Captive Washer Cap Screws may include wear and tear, corrosion, or improper tightening. Regular maintenance practices can help ensure the longevity and optimal performance of these screws. Inspecting screws for signs of damage or corrosion and replacing them as needed is important. Proper tightening techniques, such as using a torque wrench to achieve the manufacturer’s specified torque settings, are crucial to prevent over-tightening or under-tightening, which can lead to screw failure or loosening. Additionally, ensuring that mating surfaces are clean and free of debris will help maintain a secure connection.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has established itself as a trusted name in the commercial vehicle industry. The company is committed to innovation, sustainability, and customer satisfaction, continually advancing its product offerings to meet the evolving needs of its customers. Cummins’ expertise in engine manufacturing and its dedication to quality and performance make it a preferred choice for commercial truck components, including the 4096713 Captive Washer Cap Screw.

Captive Washer Cap Screw (Part 4096713) in Cummins Engines

The Captive Washer Cap Screw (Part 4096713) is a critical component in several Cummins engine models, ensuring secure fastening and stability. This part is integral to the assembly and maintenance of the engines, providing a reliable method to hold components together under high stress and varying operational conditions.

ISC8.3 CM2250

In the ISC8.3 CM2250 engine, the Captive Washer Cap Screw is used in various applications where secure fastening is essential. Its design ensures that the screw remains in place, preventing loosening due to vibrations and thermal expansion.

ISL CM2150 and ISL9 CM2150 SN

For the ISL CM2150 and ISL9 CM2150 SN engines, the Captive Washer Cap Screw is utilized in several key areas. These include securing engine mounts, attaching critical components, and ensuring the integrity of the engine’s structure. The screw’s captive washer feature adds an extra layer of security, reducing the risk of loss during maintenance or operation.

ISL9 CM2250

Similar to its counterparts, the ISL9 CM2250 engine also benefits from the Captive Washer Cap Screw. This part is used in various applications, including the attachment of engine accessories and the fastening of structural components. The screw’s design ensures that it remains securely in place, even under the high stresses encountered during engine operation.

QSK19 CM2350 K105 and QSK19 CM2350 K114

In the QSK19 CM2350 K105 and QSK19 CM2350 K114 engines, the Captive Washer Cap Screw is employed in several critical applications. These include securing engine mounts, attaching various engine components, and ensuring the structural integrity of the engine. The screw’s design, with its captive washer, provides added security, minimizing the risk of loss during maintenance or operation.

QSK95 CM2350 K111 and QSK95 CM2350 K113

For the QSK95 CM2350 K111 and QSK95 CM2350 K113 engines, the Captive Washer Cap Screw is used in numerous applications. These include the attachment of engine accessories, securing structural components, and ensuring the overall stability of the engine. The screw’s design, featuring a captive washer, provides enhanced security, reducing the likelihood of loss during maintenance or operation.

The Captive Washer Cap Screw (Part 4096713) is a vital component in these Cummins engines, ensuring secure fastening and stability across various applications. Its design, with the captive washer, provides added security, making it an essential part of the engine’s assembly and maintenance.

Role of Part 4096713 Captive Washer Cap Screw in Engine Systems

The 4096713 Captive Washer Cap Screw is integral to the secure assembly and operation of various engine components. Its application spans across multiple systems, ensuring stability and efficiency.

Alternator Mounting

In alternator mounting applications, the 4096713 screw secures the alternator to the engine block. This ensures the alternator remains firmly in place, allowing it to generate electricity efficiently without vibrations that could lead to malfunction.

Crankcase Breather and Block

For the crankcase breather system, the screw plays a role in attaching the breather cover to the cylinder block. This attachment is vital for maintaining the integrity of the crankcase ventilation, which is essential for removing contaminants and excess pressure from the crankcase.

Cam Follower Cover and Air Cleaner

When securing the cam follower cover, the 4096713 screw helps in maintaining the precise alignment of the cam followers, which are critical for the smooth operation of the valve train. Similarly, in air cleaner assemblies, it ensures that the air cleaner housing is tightly sealed, preventing unfiltered air from entering the engine.

Air Compressor and Air Intake Manifold

In air compressor mounting, the screw ensures that the compressor is securely fastened to the engine, allowing it to operate without undue stress or movement. For the air intake manifold, it helps in creating a leak-free connection between the manifold and the engine, ensuring optimal air-fuel mixture delivery.

Engine Control Module Mounting

The screw is also used in mounting the engine control module (ECM) and its associated wiring harness. This secure attachment is important for protecting the sensitive electronic components from vibrations and ensuring reliable operation of the engine control system.

Oil Pan and Turbocharger Plumbing

In oil pan assemblies, the 4096713 screw helps in securing the oil pan to the cylinder block, ensuring a tight seal that prevents oil leaks. For turbocharger plumbing, it is used to attach various components, ensuring that the turbocharger system remains intact and functions efficiently.

Auxiliary Cooling and Turbocharger Kit

In auxiliary cooling systems, the screw is employed to secure plumbing components, ensuring that the cooling system operates effectively. In turbocharger kits, it is used to attach turbocharger components, maintaining the structural integrity and performance of the turbocharger system.

Conclusion

The 4096713 Captive Washer Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks and engines. Its design, featuring an integrated washer, provides enhanced security and efficiency in assembly, ensuring components remain securely fastened under dynamic conditions. Regular maintenance and proper tightening techniques are essential to maximize the longevity and performance of this part. Cummins’ commitment to quality and innovation ensures that the 4096713 Captive Washer Cap Screw continues to be a reliable choice for heavy-duty applications.