3336479
Socket Head Cap Screw
Cummins®

The 3336479 Socket Head Cap Screw is a specialized fastener produced by Cummins, a leading manufacturer in the commercial truck industry. This screw is designed for use in various applications within commercial trucks, contributing to the secure assembly and reliable operation of truck components. Cummins is renowned for its commitment to quality and innovation, ensuring that its products meet the demanding requirements of the heavy-duty truck sector ².

Basic Concepts of Socket Head Cap Screws

Socket Head Cap Screws are a type of fastener characterized by a hexagonal socket in the head, allowing for efficient and secure tightening using a hex key. These screws are widely used in mechanical assemblies due to their strength, precision, and ease of installation. They function by providing a robust connection between components, ensuring that parts remain securely fastened under various operational stresses ¹.

Purpose of the 3336479 Socket Head Cap Screw in Truck Operation

This Cummins part plays a role in the operation and maintenance of commercial trucks by securing critical components and assemblies. It is utilized in various truck parts, including engine mounts, transmission housings, and chassis components. The screw’s design ensures a strong and reliable connection, contributing to the overall durability and performance of the truck ².

Key Features

The 3336479 Socket Head Cap Screw features several key attributes that enhance its performance and durability. It is constructed from high-strength materials, typically alloy steel, which provides excellent tensile strength and resistance to wear. The screw has a fine or coarse thread, depending on the application, allowing for secure fastening in various materials. Its hexagonal socket head design enables easy installation and removal using a hex key, reducing the risk of cam-out and ensuring precise torque application. Additionally, the screw may include features such as a corrosion-resistant coating to enhance its longevity in harsh operating environments ².

Benefits

Using the 3336479 Socket Head Cap Screw offers several advantages. The high-strength material composition ensures improved fastening strength, reducing the likelihood of failure under load. The hexagonal socket head allows for easy and efficient installation, minimizing the time required for assembly. The corrosion-resistant coating protects the screw from environmental factors, enhancing its longevity in demanding conditions. Overall, these features contribute to reliable performance and extended service life ².

Installation and Usage

Proper installation of the 3336479 Socket Head Cap Screw is vital to ensure optimal performance and safety. It is recommended to use a hex key that fits snugly into the socket to avoid damage and ensure precise torque application. Torque specifications provided by Cummins should be followed to achieve the correct fastening tension without over-tightening, which could lead to component damage or screw failure. Regular inspection and maintenance are also important to ensure the screw remains securely fastened and functions as intended ².

Troubleshooting and Maintenance

Common issues with Socket Head Cap Screws, such as loosening or corrosion, can be addressed through regular inspection and maintenance. If a screw appears loose, it should be re-tightened to the specified torque. Corrosion can be mitigated by ensuring that the screw is properly coated and that any exposed areas are protected with a suitable lubricant or anti-corrosion treatment. Regular maintenance checks help identify and resolve issues before they lead to more significant problems, ensuring continued reliable performance ².

Cummins: Manufacturer 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 rigorous demands of heavy-duty applications. Cummins’ commitment to excellence is evident in its continuous investment in research and development, ensuring that its products remain at the forefront of technology and performance ².

Socket Head Cap Screw 3336479 in Cummins Engines

The Socket Head Cap Screw 3336479, manufactured by Cummins, is a critical component in several of their engine models. This part is integral to the assembly and maintenance of the engines, ensuring structural integrity and operational efficiency.

QSV81G and QSV91G Engines

In the QSV81G and QSV91G engines, the Socket Head Cap Screw 3336479 is used to secure various components, including engine covers and housings. Its design allows for precise tightening and secure fastening, which is essential for maintaining the engine’s operational parameters and preventing leaks.

QSW/QSV82, QSW27, and QSW36 Engines

For the QSW/QSV82, QSW27, and QSW36 engines, this screw is utilized in similar applications. It plays a role in attaching engine covers and other structural parts, ensuring that these components remain firmly in place under the operational stresses of the engine. The consistent use of this screw across these models highlights its importance in maintaining the integrity of the engine assembly.

QSW73 and QSZ90 Engines

The QSW73 and QSZ90 engines also benefit from the Socket Head Cap Screw 3336479. In these engines, the screw is used to secure various engine parts, ensuring that the assembly remains stable and reliable. Its application in these models underscores its versatility and role in engine assembly and maintenance.

Role of Part 3336479 Socket Head Cap Screw in Engine Systems

The part 3336479 Socket Head Cap Screw is instrumental in securing and maintaining the integrity of various engine components. Its applications span across multiple systems, ensuring efficient operation and durability.

Coolant Heater Starting Aid

In the coolant heater starting aid system, the Socket Head Cap Screw is used to fasten components that facilitate the warming of coolant before engine start-up. This ensures smoother engine starts in cold conditions and reduces wear on engine parts.

Alternator and Turbocharger Assemblies

For the alternator and turbocharger assemblies, the Socket Head Cap Screw plays a role in securing the alternator to its mounting bracket and attaching the turbocharger to the engine block. This ensures stable operation and efficient power generation.

Lubricating Oil and Fuel Systems

In the lubricating oil pump assembly plumbing and fuel assembly plumbing, the screw is employed to secure fittings and connections. This is vital for maintaining the integrity of oil and fuel lines, ensuring consistent lubrication and fuel delivery to the engine.

Charge Air Cooler Assembly

Within the charge air cooler assembly, the Socket Head Cap Screw is used to fasten components that help in cooling the compressed air from the turbocharger before it enters the engine. This enhances engine efficiency and performance.

Exhaust Manifold Assembly

The screw is also crucial in the exhaust manifold assembly, where it secures the manifold to the engine block. This ensures that exhaust gases are efficiently directed away from the engine, contributing to better performance and reduced emissions.

Starting Motor and Engine Monitoring System

In the starting motor assembly and engine monitoring system, the Socket Head Cap Screw is used to secure electrical connections and sensors. This ensures reliable starting of the engine and accurate monitoring of engine parameters.

Preheater and Prechamber Assemblies

For the preheater and prechamber assemblies, the screw is utilized to fasten components that aid in the preheating of air or fuel, enhancing combustion efficiency.

Control Operating Engine and Fuel Filter Assemblies

In the control operating engine and fuel filter assemblies, the Socket Head Cap Screw secures components that regulate engine operation and filter fuel before it reaches the engine, ensuring clean and efficient combustion.

Turbocharger Lubricating Oil and Plumbing Assemblies

Finally, in the turbocharger lubricating oil and plumbing assemblies, the screw is used to secure oil lines and connections, ensuring proper lubrication of the turbocharger for extended lifespan and performance.

Conclusion

The 3336479 Socket Head Cap Screw is a vital component in the assembly and maintenance of commercial trucks and Cummins engines. Its robust design, high-strength material, and corrosion-resistant features ensure reliable performance and extended service life. Proper installation, regular maintenance, and adherence to torque specifications are essential to maximize the benefits of this part, contributing to the overall durability and efficiency of truck and engine systems ².