3017509
Twelve Point Cap Screw
Cummins®

The 3017509 Twelve Point Cap Screw by Cummins is a specialized fastener designed for use in commercial truck maintenance. It is integral to the assembly and repair of heavy-duty truck components, ensuring secure and reliable fastening in demanding environments. This part is particularly significant due to its robust design and the critical role it plays in maintaining the integrity of truck systems.

Basic Concepts of Twelve Point Cap Screws

A Twelve Point Cap Screw is a type of fastener that features a twelve-sided head, as opposed to the more common six-sided head found on standard cap screws. This design allows for a greater contact area between the screw and the driving tool, which can enhance torque application and reduce the risk of cam-out—a situation where the tool slips off the screw head ¹. The twelve-point design also provides a smoother driving experience and can be particularly advantageous in applications where space is limited or where the fastener is subjected to high torque.

Purpose and Role in Truck Operation

This Cummins part is utilized in various components of commercial trucks, including engine assemblies, transmission systems, and chassis structures. Its role is to provide secure fastening that can withstand the rigors of heavy-duty operation. By ensuring that components remain firmly attached, this cap screw contributes to the overall safety and performance of the truck. Its applications range from attaching engine covers to securing critical chassis parts, demonstrating its versatility and importance in truck maintenance.

Key Features

The 3017509 is characterized by several key features that enhance its performance and durability. Its twelve-point head design allows for better torque application and reduced cam-out risk. The screw is typically made from high-strength materials, such as alloy steel, which provides the necessary tensile strength and resistance to wear. Additionally, the screw may feature a corrosion-resistant coating to protect against environmental factors, ensuring longevity in various operating conditions ².

Benefits

The benefits of using the 3017509 include improved torque application due to its unique head design, which allows for more efficient force transfer. The reduced risk of cam-out enhances the fastening process, making it more reliable and less time-consuming. Furthermore, the enhanced fastening security provided by this cap screw helps to maintain the structural integrity of truck components, contributing to overall vehicle safety and performance.

Installation Guidelines

Proper installation of the 3017509 is crucial for optimal performance. It is recommended to use the appropriate torque specifications provided by the manufacturer to ensure that the screw is tightened to the correct level without over-torquing, which could lead to damage. Best practices include using a high-quality twelve-point socket to engage the screw head, ensuring that the screw is aligned correctly with the threaded hole, and verifying that the fastened components are secure and properly aligned ³.

Troubleshooting and Maintenance

Common issues with the 3017509 may include wear and tear, corrosion, or loosening over time. Regular inspection for signs of damage or deterioration is recommended to identify potential problems early. Maintenance tips include cleaning the screw and surrounding area to prevent corrosion, reapplying any necessary lubricants, and monitoring torque levels during periodic checks to ensure that the screw remains properly tightened.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product range includes a variety of components designed to enhance the performance and reliability of commercial vehicles. Cummins’ dedication to manufacturing excellence is evident in the design and production of parts like the 3017509, which embodies the company’s standards for quality and durability.

Twelve Point Cap Screw 3017509 in Cummins Engines

The 3017509, manufactured by Cummins, is a critical component in various Cummins engine models. This screw is designed to provide robust fastening capabilities, ensuring secure connections in high-stress environments.

L10 Series Engines

In the L10 series engines, which include both the L10 CELECT and L10 MECHANICAL variants, the 3017509 screw is utilized in several key applications. These engines are known for their reliability and performance, and the cap screw plays a vital role in maintaining structural integrity and operational efficiency.

QSK Series Engines

For the QSK series engines, specifically the QSK45 CM500 and QSK60 CM500 models, the 3017509 screw is integral to the assembly and maintenance of these powerful engines. These engines are designed for demanding applications, and the cap screw’s strength and durability are essential for their performance.

The QSK60G engine also relies on the 3017509 screw for various fastening needs. This engine is part of the QSK series, which is known for its high power output and efficiency, making the cap screw’s role even more critical.

Application Considerations

The 3017509 screw’s design, with its twelve points, allows for better grip and distribution of force, which is crucial in the high-stress environments of these engines. Its use in these engines ensures that components are securely fastened, reducing the risk of failure and enhancing overall engine performance.

Role of Part 3017509 Twelve Point Cap Screw in Engine Systems

The 3017509 is integral to the secure assembly and operation of various engine components. Its application ensures the stability and efficiency of the engine system by fastening critical parts together.

In the arrangement of engine components, this cap screw plays a significant role in maintaining the precise positioning of parts. It secures the turbocharger to the engine block, ensuring that the turbocharger operates within its designed parameters, thus optimizing air intake and exhaust flow.

For the camshaft, the Twelve Point Cap Screw is used in the camshaft and gear mounting to hold the camshaft in place. This secure attachment is vital for the camshaft’s rotation, which in turn controls the opening and closing of the engine’s valves.

In the fan drive mounting (high) hub, the cap screw ensures that the fan drive is correctly aligned and tightly fastened. This is essential for the efficient operation of the engine’s cooling system, as the fan must be able to dissipate heat effectively to prevent engine overheating.

The filter, specifically the full flow oil filter, is another component where this cap screw is employed. It secures the filter housing, ensuring that the oil filtration process is unimpeded, which is key to maintaining clean oil circulation throughout the engine.

In the realm of performance parts, the Twelve Point Cap Screw is often used to attach aftermarket components that enhance engine performance. These may include upgraded intake systems, exhaust manifolds, or intercoolers, where secure fastening is paramount to achieve the desired performance gains.

The electronic engine control system also benefits from the use of this cap screw. It is utilized in the mounting of sensors and control modules, ensuring that these electronic components are firmly in place and able to provide accurate readings and control signals to the engine management system.

Lastly, in the etr control system, the cap screw is employed to secure various control units and actuators. This ensures that the etr system, which may include variable valve timing or variable geometry turbo controls, operates smoothly and responds accurately to the engine’s demands.

Overall, the 3017509 is a fundamental fastener in the assembly and maintenance of engine systems, contributing to the reliability and performance of the engine as a whole.

Conclusion

The 3017509 Twelve Point Cap Screw by Cummins is a critical component in the maintenance and operation of commercial trucks and engines. Its unique design, robust construction, and versatile applications make it an essential fastener for ensuring the secure assembly and reliable performance of heavy-duty truck components. Proper installation, regular maintenance, and understanding its role in various engine systems are key to maximizing the benefits of this part.