3335045
Hexagon Head Cap Screw
Cummins®

The Hexagon Head Cap Screw Part #3335045, manufactured by Cummins, is a specialized fastener designed for use in commercial truck applications. Cummins, a well-established name in the commercial truck industry, produces a range of high-quality components, including this particular cap screw. This part is significant due to its role in ensuring the secure fastening of various truck components, contributing to the overall reliability and performance of commercial vehicles.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is a type of fastener characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. The design of the cap screw includes a threaded shaft that extends through the components being joined, with the head providing a surface for applying torque. Cap screws are commonly used in various industries for their ability to provide strong, secure fastenings. They are particularly valued in applications where vibration resistance and durability are required ¹.

Purpose and Role in Truck Operation

This Cummins part serves a specific purpose in the context of commercial trucks. It is utilized to fasten critical components, ensuring they remain securely in place under various operating conditions. This cap screw contributes to the overall operation and maintenance of truck components by providing a reliable fastening solution that can withstand the rigors of heavy-duty use. Its application helps in maintaining the integrity of truck assemblies, which is vital for safe and efficient truck operation.

Key Features

The 3335045 Hexagon Head Cap Screw boasts several key features that enhance its performance and durability. It is composed of high-strength materials, typically alloy steel, which provides excellent tensile strength and resistance to wear. The screw features a coarse thread type, which allows for quick and secure fastening. Additionally, its design may include features such as a chamfered end for easy insertion and a flat underside to ensure a flush fit with the fastened components.

Benefits

Using the 3335045 Hexagon Head Cap Screw offers several benefits. Its high-strength material composition ensures improved fastening strength, making it suitable for heavy-duty applications. The screw’s design provides resistance to vibration, which is crucial in the dynamic environment of a commercial truck. Furthermore, its durability ensures longevity even in harsh operating conditions, reducing the need for frequent replacements and maintenance ².

Installation Guidelines

Proper installation of the 3335045 Hexagon Head Cap Screw is vital to ensure its effectiveness and longevity. The installation process should begin with cleaning the fastening area to remove any debris or contaminants. Using the appropriate wrench or socket, the screw should be tightened to the specified torque settings to avoid over-tightening or under-tightening. Recommended tools include a torque wrench to achieve the precise torque required for the application.

Troubleshooting and Maintenance

Common issues with Hexagon Head Cap Screws may include loosening due to vibration or corrosion. To address these issues, regular inspections should be conducted to ensure screws remain tight and free of corrosion. If loosening is detected, re-tightening to the specified torque is recommended. Corrosion can be mitigated by applying an appropriate anti-seize compound during installation. Maintenance tips include keeping fastening areas clean and monitoring screws for signs of wear or damage.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a strong reputation for quality and innovation in the commercial truck industry. The company’s commitment to producing reliable and high-performance components is evident in its extensive product range, which includes engines, powertrains, and various truck components. Cummins’ dedication to excellence ensures that their products, like the 3335045 Hexagon Head Cap Screw, meet the demanding requirements of commercial truck applications.

Hexagon Head Cap Screw 3335045 in Cummins Engines

The Hexagon Head Cap Screw 3335045, manufactured by Cummins, is a critical component in various Cummins engine models. This screw is integral to the assembly and maintenance of these engines, ensuring secure fastening and structural integrity.

G8.3 Series

The G8.3 series, including the G8.3 CM558, utilizes the 3335045 screw in several key areas. It is commonly found in the engine block, cylinder head, and other critical assemblies where robust fastening is required.

ISM Series

In the ISM series, the 3335045 screw is used across multiple models. For instance, in the ISM CM570 and ISM CM570/870, this screw is essential for securing the engine block and various auxiliary components. Its use extends to the ISM11 CM876 SN, where it plays a role in maintaining the structural integrity of the engine’s core components.

L10 Series

The L10 series engines, including L10 CELECT, L10 GAS, and L10 MECHANICAL, incorporate the 3335045 screw in their design. This screw is vital for fastening the engine block, cylinder head, and other critical assemblies, ensuring the engine operates under optimal conditions.

M11 Series

In the M11 series, the 3335045 screw is a staple in both the M11 CELECT and M11 CELECT PLUS models. It is used extensively in the engine block, cylinder head, and other structural components. Additionally, the M11 MECHANICAL model also relies on this screw for its robust fastening needs.

QSM11 Series

The QSM11 CM570 engine utilizes the 3335045 screw in several key areas, including the engine block and cylinder head. This screw ensures that all components are securely fastened, contributing to the engine’s overall performance and longevity.

QST30 Series

In the QST30 CM2350 T101 engine, the 3335045 screw is used in various critical assemblies. Its role is to provide secure fastening, ensuring that the engine operates efficiently and reliably.

V903 Series

The V903 engine also incorporates the 3335045 screw in its design. This screw is used in key areas such as the engine block and cylinder head, ensuring that all components are securely fastened and the engine operates under optimal conditions.

Role of Part 3335045 Hexagon Head Cap Screw in Engine Systems

The part 3335045 Hexagon Head Cap Screw is integral to the secure assembly and operation of various engine components. Its applications span across multiple systems, ensuring the integrity and efficiency of the engine’s performance.

Air and Fuel Systems

In the air connection and air inlet connection, the Hexagon Head Cap Screw secures components that facilitate the smooth flow of air into the engine. This is vital for maintaining optimal air-fuel ratios, which directly influence combustion efficiency and overall engine performance. Similarly, in the fuel filter and full flow oil filter systems, this screw ensures that the filters are tightly mounted, preventing leaks and ensuring that contaminants are effectively removed from the fuel and oil, respectively.

Turbocharger and Cooling Systems

Within the turbocharger arrangement, the Hexagon Head Cap Screw plays a role in securing the turbocharger to its base parts and bracket. This ensures that the turbocharger operates within its designed parameters, enhancing air intake and drive efficiency. In the radiator and auxiliary cooling system, it secures components such as the thermostat housing and water header cover, crucial for maintaining the engine’s operating temperature within safe limits.

Lubrication and Hydraulic Systems

For the lubricating oil filter and hydraulic pump, the screw ensures that these components are firmly attached to their respective mounting heads and housings. This is essential for the consistent delivery of lubricants to engine parts, reducing wear and tear, and for the efficient operation of hydraulic systems that may control various engine functions.

Engine Control and Performance Modules

In the module for engine control and performance parts, the Hexagon Head Cap Screw secures components that are critical for the engine’s electronic management system. This includes securing the gear housing cover and ensuring that the engine control module (ECM) is properly mounted, allowing for precise control over engine operations and performance enhancements.

Additional Applications

The screw also finds its use in securing the freon compressor mounting, fan drive mounting (high) hub, and main bearing cap replacer. These applications underscore its versatility and importance in maintaining the structural integrity and functional efficiency of diverse engine components.

Conclusion

Overall, the part 3335045 Hexagon Head Cap Screw is a fundamental component in the assembly and secure operation of various engine systems, contributing to the engine’s reliability, performance, and longevity.