3021470
Captive Washer Cap Screw
Cummins®

The Captive Washer Cap Screw, identified by Part #3021470, is a component manufactured by Cummins, a renowned entity in the automotive and heavy-duty truck parts industry. This screw plays a significant role in the maintenance and operation of heavy-duty trucks, ensuring both structural integrity and performance efficiency. Cummins, with its extensive history and expertise in manufacturing high-quality automotive components, provides this part as a solution to common fastening needs in commercial trucks ¹.

Basic Concepts

A Captive Washer Cap Screw is a type of fastener that incorporates a washer directly into the screw assembly. This design ensures that the washer remains in place during installation, reducing the risk of loss and simplifying the fastening process. In mechanical assemblies, these screws are utilized for their efficiency and reliability, providing a secure and consistent fastening solution that is particularly beneficial in environments where components are subject to vibration or frequent disassembly ².

Role in Truck Operation

This Cummins part is integral to the operation and maintenance of commercial trucks. It is commonly applied in areas where secure fastening is required to maintain structural integrity and performance. This includes fastening panels, securing components, and ensuring that parts remain firmly in place under various operating conditions. The screw’s design contributes to the overall reliability and safety of the truck, playing a role in maintaining the vehicle’s structural integrity and operational efficiency.

Key Features

The 3021470 Captive Washer Cap Screw features a design that integrates a washer within the screw assembly, ensuring that the washer does not become misplaced during installation. It is constructed from materials that offer durability and resistance to corrosion, making it suitable for use in demanding environments. The screw’s unique attributes, such as its captive washer design and material composition, enhance its functionality and longevity, providing a reliable fastening solution for heavy-duty applications.

Benefits

Utilizing the 3021470 Captive Washer Cap Screw offers several benefits, including improved reliability due to its captive washer design, which ensures consistent performance and reduces the risk of washer loss. The ease of installation is another advantage, as the integrated washer simplifies the fastening process. Additionally, its enhanced performance in demanding conditions, thanks to its durable material composition, makes it a valuable component for maintaining the structural integrity and operational efficiency of commercial trucks.

Troubleshooting and Maintenance

Common issues with Captive Washer Cap Screws may include loosening over time due to vibration or wear. To address these issues, regular inspection and tightening of screws can help maintain their effectiveness. In cases where screws show signs of corrosion or damage, replacement may be necessary to ensure continued reliability and performance. Proper maintenance practices, such as using the correct torque settings during installation and periodic checks, can contribute to the longevity and optimal performance of these screws.

About Cummins

Cummins is a global leader in the design, manufacture, and distribution of engines and related technologies. With a history spanning over a century, Cummins has established itself as a trusted name in the automotive and heavy-duty truck parts industry. The company’s commitment to quality, innovation, and customer satisfaction is evident in its wide range of products, including the 3021470 Captive Washer Cap Screw. Cummins continues to advance the industry with its expertise in manufacturing components that meet the demanding requirements of commercial vehicles ³.

Cummins Captive Washer Cap Screw 3021470 Compatibility

The Cummins Captive Washer Cap Screw part number 3021470 is a versatile component that fits into a variety of Cummins engines. This part is designed to secure various components within the engine, ensuring stability and proper function. Below is a detailed breakdown of the engines with which this part is compatible:

4B3.9 and 6B5.9 Engines

The 4B3.9 and 6B5.9 engines are part of Cummins’ lineup of medium-duty diesel engines. This part is used in these engines to secure various parts, ensuring that components remain tightly fastened during operation.

6C8.3 and 6C8.3 G Engines

These engines are known for their reliability and efficiency in heavy-duty applications. This Cummins part is utilized in these engines to maintain the structural integrity of critical components, ensuring that the engine operates smoothly.

B5.9 G and C GAS PLUS CM556 Engines

The B5.9 G and C GAS PLUS CM556 engines are designed for both gas and diesel applications. The Captive Washer Cap Screw 3021470 is essential in these engines for securing parts that are subject to high stress and vibration.

C8.3 G and GTA38 G CMEICS G116C Engines

These engines are part of Cummins’ range of high-performance diesel engines. This part is used to secure various engine components, ensuring that the engine maintains its structural integrity under demanding conditions.

ISB CM550, ISC CM554, and ISM CM570 Engines

These engines are part of Cummins’ Industrial Series, known for their durability and efficiency. The 3021470 Captive Washer Cap Screw is used to secure components in these engines, ensuring that they operate reliably over long periods.

K19, K38, and K50 Engines

These are Cummins’ medium-duty diesel engines, and this part is used to secure various parts within these engines, ensuring that they function correctly under different operating conditions.

KTA19GC and KTA19GC CM558 Engines

These engines are part of Cummins’ range of gas-powered engines. This part is used to secure components in these engines, ensuring that they operate efficiently and reliably.

L10 CELECT, L10 GAS, and L10 MECHANICAL Engines

The L10 series engines are known for their versatility and efficiency. The 3021470 Captive Washer Cap Screw is used in these engines to secure various parts, ensuring that they function correctly under different operating conditions.

M11 CELECT, M11 CELECT PLUS, and M11 MECHANICAL Engines

These engines are part of Cummins’ range of medium-duty diesel engines. This part is used to secure components in these engines, ensuring that they operate reliably and efficiently.

N14 CELECT, N14 CELECT PLUS, and N14 MECHANICAL Engines

The N14 series engines are known for their durability and efficiency. The 3021470 Captive Washer Cap Screw is used in these engines to secure various parts, ensuring that they function correctly under different operating conditions.

NH/NT 855 Engines

The NH/NT 855 engines are part of Cummins’ range of heavy-duty diesel engines. This part is used to secure components in these engines, ensuring that they operate reliably and efficiently under demanding conditions.

Role of Part 3021470 Captive Washer Cap Screw in Engine Systems

This part is instrumental in securing and maintaining the integrity of various engine components. It is commonly used in the assembly and fastening of critical parts to ensure they remain firmly in place under operational conditions.

In the air compressor dummy opt and air connection systems, this screw is utilized to secure the connections and ensure airtight seals, which are vital for the efficient operation of the air compressor.

For the air silencers and mtg. (mounting), the screw helps in attaching the silencers to the engine frame, reducing noise emissions and ensuring stability.

In the base parts of the engine, it plays a role in fastening components that form the foundation of the engine structure, contributing to the overall stability and alignment.

The bypass filter system benefits from the use of this screw in securing the filter housing, ensuring that the filtration process is effective and that the filter remains in the correct position.

For the cold starting mounting, the screw is essential in attaching components that facilitate easy starting of the engine in cold conditions, enhancing reliability.

In the compressor air 2.2.2. head code and crankcase assemblies, it is used to secure covers and housings, ensuring that these critical components are properly sealed and aligned.

The cmpr (compressor) drive, gov & magtronics, and govnor (governor) systems rely on this screw to fasten drive components and governor mechanisms, ensuring precise control over engine operations.

The engine control module housing is often secured using this screw, protecting the sensitive electronic components within.

In the exhaust connection brace and fan arrangement, it ensures that these components are firmly attached, contributing to the efficient dissipation of heat and smooth operation of the cooling system.

For the fuel pump and governor, as well as the governor and drive systems, the screw is used to secure critical components, ensuring reliable fuel delivery and engine governance.

In the heat exchanger mounting and idler pulley assembly, it plays a role in attaching these components, ensuring they function correctly within the engine system.

The lubricating oil cooler and mounting tappet systems benefit from the use of this screw in securing cooler housings and tappet assemblies, contributing to effective lubrication and engine performance.

In the pdc kit (possibly referring to a power distribution center kit) and torque converter, the screw is used to fasten components, ensuring reliable power distribution and torque conversion.

For the turbocharger arrangement and turbocharger mounting t-35 kit, it is essential in securing turbocharger components, ensuring efficient air compression and engine performance.

The water pump and wiring brace mounting systems also utilize this screw to secure pump housings and wiring braces, ensuring reliable coolant circulation and electrical integrity.

Overall, the part 3021470 Captive Washer Cap Screw is a versatile fastener that contributes to the secure assembly and reliable operation of various engine components.

Conclusion

The 3021470 Captive Washer Cap Screw by Cummins is a critical component in the maintenance and operation of heavy-duty trucks and various Cummins engines. Its design, featuring an integrated washer, ensures reliable fastening and simplifies the installation process. The screw’s durability and resistance to corrosion make it suitable for demanding environments, contributing to the structural integrity and operational efficiency of commercial vehicles. Regular maintenance and proper installation practices are essential to ensure the longevity and optimal performance of this part.