3335055
Hexagon Head Cap Screw
Cummins®

The Cummins Hexagon Head Cap Screw, part number 3335055, is a specialized fastener designed for use in commercial truck applications. This part plays a significant role in ensuring the secure assembly of various truck components, contributing to the overall reliability and performance of the vehicle. Its design and material composition are tailored to withstand the demanding conditions encountered in heavy-duty truck operations.

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 torque application using common hand tools such as wrenches or sockets. The screw features external threads that engage with internal threads in a mating part, creating a secure connection. In the automotive industry, hexagon head cap screws are widely used due to their strength, ease of installation, and resistance to loosening. They are commonly employed in applications requiring robust fastening solutions, such as engine components, chassis assemblies, and various mechanical systems ¹.

Purpose of the 3335055 Hexagon Head Cap Screw in Truck Operations

This Cummins part is specifically engineered to meet the rigorous demands of commercial truck operations. It plays a role in securing critical components and assemblies within the truck, ensuring structural integrity and reliable performance. This screw is utilized in various truck systems, including engine mounts, transmission housings, and chassis components. Its application helps maintain the alignment and stability of these parts, contributing to the truck’s overall durability and operational efficiency ².

Key Features

The 3335055 Hexagon Head Cap Screw boasts several key features that enhance its functionality and durability. It is constructed from 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 hexagonal head design facilitates easy torque application, ensuring consistent and reliable fastening. The screw may also incorporate unique design elements such as a chamfered end for easy insertion and a corrosion-resistant coating to enhance longevity in harsh environments ³.

Benefits

Using the 3335055 Hexagon Head Cap Screw offers several benefits in commercial truck applications. The screw’s high-strength material composition and coarse thread type contribute to improved fastening strength, reducing the risk of loosening under vibration and dynamic loads. Its corrosion-resistant coating enhances durability, ensuring long-term performance in the challenging conditions typical of truck operations. The screw’s design also allows for efficient installation and removal, facilitating maintenance and repair processes.

Installation and Usage Guidelines

Proper installation of the 3335055 Hexagon Head Cap Screw is crucial for ensuring secure and effective fastening. Follow these guidelines for optimal results:

1. Preparation: Ensure the mating threads are clean and free of debris. Use a thread lubricant if specified to reduce friction and prevent galling.
2. Insertion: Align the screw with the mating threads and begin threading by hand to avoid cross-threading.
3. Torque Application: Use a torque wrench to apply the specified torque value. This ensures the screw is tightened to the manufacturer’s recommended level, providing a secure connection without over-tightening.
4. Inspection: After installation, inspect the screw to ensure it is properly seated and the connection is secure. Check for any signs of damage or misalignment.

Troubleshooting and Maintenance

Common issues with hexagon head cap screws include loosening, corrosion, and thread damage. To address these problems:

• Loosening: Re-tighten the screw to the specified torque value. If loosening persists, inspect for underlying issues such as vibration or improper installation.
• Corrosion: Clean the screw and mating threads thoroughly. Apply a corrosion-resistant coating or lubricant to prevent further degradation.
• Thread Damage: Replace damaged screws to maintain secure fastening. Inspect mating threads for damage and repair or replace as necessary.

Regular maintenance, including periodic inspection and re-torqueing, can prolong the life of the 3335055 Hexagon Head Cap Screw and ensure continued reliable performance.

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 is committed to innovation and quality, providing solutions for a variety of industries, including commercial trucking, agriculture, construction, and power generation. The company’s extensive product range and dedication to customer satisfaction have established Cummins as a trusted name in the diesel engine and related technologies market.

Hexagon Head Cap Screw 3335055 in Cummins Engines

The Cummins Hexagon Head Cap Screw part number 3335055 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 and K19 Engines

In the G8.3 and K19 engines, the 3335055 screw is used in several key areas. It is often employed in the engine block assembly, securing various components and ensuring that the engine operates smoothly under high stress conditions. The precision and strength of this screw are essential for maintaining the alignment and stability of the engine parts.

L10 GAS and L10 MECHANICAL Engines

For the L10 GAS and L10 MECHANICAL engines, the 3335055 screw is utilized in both the gas and mechanical variants. This screw is crucial in the assembly of the cylinder heads and other critical engine components. Its robust design ensures that the engine can withstand the pressures and temperatures inherent in these high-performance engines.

NH/NT 855 Engines

In the NH/NT 855 engines, the 3335055 screw plays a significant role in the engine’s structural framework. It is used in the mounting of various engine components, ensuring that the engine remains securely fastened and aligned. This screw’s reliability is vital for the engine’s performance and longevity.

QSK19 CM850 MCRS and QSNT14 CM876 N102 Engines

For the QSK19 CM850 MCRS and QSNT14 CM876 N102 engines, the 3335055 screw is integral to the engine’s complex assembly. It is used in the fastening of critical components, ensuring that the engine can operate under extreme conditions. The precision and durability of this screw are essential for maintaining the engine’s performance and reliability.

V903 Engines

In the V903 engines, the 3335055 screw is used in various assembly points. Its role is to secure components that are subject to high stress and vibration, ensuring that the engine maintains its structural integrity and performance over time.

The Cummins Hexagon Head Cap Screw part number 3335055 is a testament to the company’s commitment to quality and reliability. Its use across various engine models underscores its importance in ensuring the engines’ operational efficiency and durability.

Role of Part 3335055 Hexagon Head Cap Screw in Engine Systems

The part 3335055 Hexagon Head Cap Screw is instrumental in securing and maintaining the integrity of various components within engine systems. Its robust design ensures reliable fastening, which is essential for the safe and efficient operation of the engine.

Block and Cylinder Block

In the block and cylinder block, the Hexagon Head Cap Screw is used to fasten critical components such as the cylinder head, ensuring a secure seal that prevents coolant and oil leaks. This fastening is vital for maintaining the structural integrity and performance of the engine.

Engine and Cleaner

Within the engine assembly, these screws secure components like the cleaner system, which is responsible for maintaining the cleanliness of the engine’s internal parts. Proper fastening ensures that the cleaner system operates efficiently, contributing to the overall longevity of the engine.

Air and Control Systems

For air and control systems, the Hexagon Head Cap Screw plays a role in securing air intake components and control modules. This ensures that air flows smoothly into the engine and that control systems function correctly, optimizing engine performance.

Engine Brake and Exhaust Brake Control

In engine brake and exhaust brake control systems, these screws are used to fasten brake components, ensuring they operate under high stress without failure. This is important for the safe deceleration and control of the engine, especially in heavy-duty applications.

Corrosion Resistor and Cover

The corrosion resistor and cover components are secured using these screws to protect sensitive engine parts from environmental damage. A secure fit helps in maintaining the effectiveness of these protective measures.

Drive Components

For drive components such as the fan drive, front gr.trn.acc., and idler lever, the Hexagon Head Cap Screw ensures that these parts are firmly attached. This is essential for the smooth operation of ancillary systems that support the engine’s primary functions.

Fan Arrangement and Hub

In the fan arrangement and hub, these screws are critical for securing the fan blades and ensuring they spin efficiently. This contributes to effective engine cooling, which is vital for preventing overheating.

Fuel Pump and Oil Tank Mounting

The fuel pump and oil tank mounting systems rely on these screws to ensure that these components are securely fastened. This is important for the safe and efficient delivery of fuel and oil to the engine.

Pan, Oil, and Thermostat Housing

These screws are also used in the oil pan, oil system components, and thermostat housing to ensure a secure and leak-proof assembly. This is essential for maintaining the engine’s lubrication and cooling systems.

Water Connection

Finally, in the water connection system, these screws secure components that manage the flow of coolant. Proper fastening ensures that the cooling system operates efficiently, preventing engine overheating.

Conclusion

The 3335055 Hexagon Head Cap Screw by Cummins is a critical component in the assembly and maintenance of commercial truck engines. Its robust design, high-strength material composition, and corrosion-resistant features make it an essential part for ensuring the secure fastening and structural integrity of various engine components. Proper installation and maintenance of this screw are vital for the reliable and efficient operation of the engine, contributing to the overall performance and longevity of the vehicle.