3074650
Hexagon Head Cap Screw
Cummins®

The Cummins 3074650 Hexagon Head Cap Screw is a specialized fastener designed for commercial truck applications. Cummins is renowned for its commitment to quality and innovation, and this part is significant for ensuring the structural integrity and reliable operation of various truck components.

Basic Concepts of Hexagon Head Cap Screws

A Hexagon Head Cap Screw is characterized by its hexagonal head, which allows for efficient tightening and loosening using a wrench or socket. The design includes a threaded shank and a head that distributes the clamping force. Cap screws are widely used in various industries for their strength and reliability.

Purpose of the 3074650 Hexagon Head Cap Screw in Truck Operations

This Cummins part is utilized in applications requiring high tensile strength and resistance to loosening. Common applications include securing engine components, transmission parts, and chassis elements. Its design ensures that critical components remain firmly in place under varying load conditions.

Key Features

The 3074650 Hexagon Head Cap Screw is composed of high-grade materials, typically alloy steel, providing excellent strength and corrosion resistance. It features a coarse thread type for quick and secure fastening and a hexagonal head design for efficient tightening or loosening with standard tools.

Benefits

Using this part offers several benefits, including improved load distribution across fastened components, resistance to loosening, and durability in harsh environments. These factors contribute to the longevity of truck assemblies and minimize the need for frequent replacements.

Installation Guidelines

Proper installation is vital for optimal performance and safety. Ensure mating surfaces are clean, use a torque wrench to achieve recommended torque specifications, and apply a thread locker to enhance resistance to vibration-induced loosening. Regular inspection for wear or damage is also advisable.

Troubleshooting Common Issues

Common problems include stripping and corrosion. To address stripping, use the correct screw size and type, and apply appropriate torque. Corrosion can be mitigated by selecting screws made from corrosion-resistant materials and applying a protective coating if necessary. Regular inspection and maintenance help identify and address these issues promptly.

Maintenance Tips

Regular maintenance is recommended to prolong the service life and ensure continued reliable performance. Inspect the screw periodically for signs of wear, corrosion, or damage. Clean the screw and surrounding area to remove debris or contaminants. If corrosion is detected, consider reapplying a protective coating. Ensure the screw is properly torqued during routine checks to maintain the integrity of the fastened components.

Cummins: A Brief Overview

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, reliability, and innovation in the commercial truck industry. The company’s extensive product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of commercial applications. Cummins’ commitment to excellence is evident in its rigorous testing protocols and continuous investment in research and development.

Hexagon Head Cap Screw 3074650 in Cummins Engines

The 3074650 Hexagon Head Cap Screw is a critical component in various Cummins engine models, ensuring secure fastening and structural integrity.

G5.9 and G5.9 CM558

In the G5.9 and G5.9 CM558 engines, this screw is used in several key areas, including securing engine mounts, attaching components to the engine block, and fastening various engine accessories. Its robust design ensures that these parts remain firmly in place under operational stresses.

G8.3 and G855

For the G8.3 and G855 engines, the 3074650 screw is employed in similar applications. It is used to fasten engine components to the block, ensuring that the engine’s internal parts remain securely attached. This screw’s precision and strength are vital for maintaining the engine’s operational efficiency and longevity.

K38 and K50

In the K38 and K50 engines, the 3074650 screw is utilized in various structural applications. It is commonly found in the engine’s mounting system, securing the engine to the vehicle’s chassis. Additionally, it is used in fastening components within the engine, ensuring that all parts are held together securely.

KTA19GC, KTA19GC CM558, and KTA38GC CM558

The KTA19GC, KTA19GC CM558, and KTA38GC CM558 engines also rely on the 3074650 screw for critical fastening tasks. This screw is used in the engine’s mounting system, securing the engine to the vehicle’s chassis. It is also used in fastening various engine components, ensuring that the engine operates smoothly and efficiently.

QSC8.3 CM850 (CM2850), QSK19 CM2350 K105, and QSK19 CM850 MCRS

In the QSC8.3 CM850 (CM2850), QSK19 CM2350 K105, and QSK19 CM850 MCRS engines, the 3074650 screw is used in several key areas. It is employed in the engine’s mounting system, securing the engine to the vehicle’s chassis. Additionally, it is used in fastening various engine components, ensuring that all parts are held together securely.

QSM11 CM570

The QSM11 CM570 engine also utilizes the 3074650 screw for critical fastening tasks. It is used in the engine’s mounting system, securing the engine to the vehicle’s chassis. Additionally, it is used in fastening various engine components, ensuring that the engine operates smoothly and efficiently.

Role of Part 3074650 Hexagon Head Cap Screw in Engine Systems

The 3074650 Hexagon Head Cap Screw is integral to the secure assembly and operation of various engine components. Its applications span across multiple systems, ensuring the stability and efficiency of the engine.

Adapter and Rear Drive Arrangement

In the adapter and rear drive arrangement, the Hexagon Head Cap Screw is used to fasten components securely. This ensures that the rear drive operates smoothly without any misalignment or undue stress on the components.

Fuel Governor and Turbocharger Connection

Within the fuel governor and turbocharger connection, the screw plays a vital role in maintaining the integrity of the connection. It helps withstand the high pressures and temperatures that are common in these systems, ensuring reliable fuel delivery and efficient turbocharging.

Exhaust Outlet and Drive Front Gear Train Accessory

At the exhaust outlet and within the drive front gear train accessory, the screw is employed to secure critical components. This is essential for maintaining the structural integrity of the exhaust system and ensuring the precise operation of the gear train.

Exhaust Connection Bracket and Gear Mounting

The exhaust connection bracket and gear mounting benefit from the use of the Hexagon Head Cap Screw due to its ability to provide a strong and durable fastening solution. This is particularly important in high-vibration environments typical of engine operations.

Manifold and Water Marine Gear

In the manifold and water marine gear, the screw ensures that all components are tightly secured. This is crucial for preventing leaks and ensuring efficient water flow, which is vital for cooling and lubrication in marine engines.

Marine Reverse and Reduction Gear

The marine reverse and reduction gear system relies on the Hexagon Head Cap Screw to maintain the alignment and integrity of the gear components. This ensures smooth operation and reliable performance of the reverse and reduction functions.

Engine Control Module and Alternator Mounting

For the engine control module and alternator mounting, the screw provides a secure attachment point. This is important for the stable operation of these components, which are essential for engine management and electrical power generation.

Turbocharger Oil and Water Supply Plumbing

In the turbocharger oil and water supply plumbing, the screw is used to secure fittings and connections. This ensures that the plumbing systems remain intact under the high pressures and temperatures associated with turbocharger operation.

Ignition System and Pressure Regulator Valve

Finally, in the ignition system and pressure regulator valve, the Hexagon Head Cap Screw ensures that all components are securely fastened. This is important for the reliable operation of the ignition system and the precise control of fuel pressure.

Conclusion

The 3074650 Hexagon Head Cap Screw is a versatile fastener that contributes to the secure and efficient operation of various engine systems. Its robust design, high-grade materials, and precise engineering make it an essential component in the assembly and maintenance of Cummins engines and commercial truck applications.