3089193
Twelve Point Cap Screw
Cummins®

Introduction

The Twelve Point Cap Screw, identified by part number 3089193, is a specialized fastener produced by Cummins, a renowned manufacturer in the automotive and heavy-duty truck industry. This screw is integral to the assembly and maintenance of commercial trucks, ensuring secure fastening in various applications. Cummins is recognized for its commitment to quality and innovation in automotive components, making the Twelve Point Cap Screw a reliable choice for truck operators and maintenance professionals ¹.

Basic Concepts

A Twelve Point Cap Screw is a type of fastener characterized by its twelve-sided socket head, which provides a larger contact area compared to traditional hex cap screws. This design allows for more efficient torque application and reduces the likelihood of cam-out, where the tool slips out of the fastener head during tightening or loosening ². The screw is threaded along its length to engage with a corresponding internal thread, securing components together in a wide range of applications.

Purpose and Role in Truck Operation

This Cummins part plays a significant role in the operation and maintenance of commercial trucks by providing secure fastening in critical areas. It is used in applications where high torque and resistance to loosening are required, such as in engine components, chassis assemblies, and other structural parts. The screw’s design ensures that it can withstand the rigors of heavy-duty truck operation, contributing to the overall reliability and safety of the vehicle ³.

Key Features

The 3089193 Twelve Point Cap Screw features a twelve-point design that offers enhanced torque application and reduced cam-out risk. It is typically made from high-strength materials, such as alloy steel, to ensure durability and resistance to wear. The screw may also include features like a corrosion-resistant coating to protect against environmental factors, extending its service life in demanding applications.

Benefits

The twelve-point design of this part provides several advantages over traditional hex cap screws. It allows for more efficient torque transfer, reducing the effort required during installation and removal. The larger contact area also minimizes the risk of damage to the fastener head, ensuring a secure fit and reducing the likelihood of loosening over time. These benefits contribute to improved maintenance efficiency and enhanced truck performance.

Installation Considerations

Proper installation of the 3089193 Twelve Point Cap Screw is crucial to ensure optimal performance and longevity. It is recommended to use the appropriate torque wrench to apply the specified torque value, avoiding over-tightening that could damage the fastener or the components being secured. The use of a twelve-point socket or driver is advised to engage with the screw head, ensuring a secure fit and reducing the risk of cam-out. Additionally, applying a thread locker or anti-seize compound may be beneficial in certain applications to prevent loosening and facilitate future removal.

Troubleshooting and Maintenance

Common issues with Twelve Point Cap Screws may include loosening due to vibration or corrosion, and damage to the fastener head from improper tool use. Regular inspection and maintenance are recommended to identify and address these issues promptly. If loosening is detected, the screw should be re-tightened to the specified torque value. In cases of significant corrosion or damage, replacement of the fastener may be necessary to ensure continued secure fastening. Proper storage and handling of the screws, away from moisture and contaminants, can also help prolong their lifespan.

Manufacturer - Cummins

Cummins is a global leader in the design, manufacture, and distribution of engines and related technologies. With a history spanning over a century, Cummins has established a reputation for innovation, quality, and reliability in the automotive and heavy-duty truck industries. The company’s commitment to producing high-quality components, including the 3089193 Twelve Point Cap Screw, reflects its dedication to enhancing the performance and durability of commercial vehicles.

Twelve Point Cap Screw 3089193 in Cummins Engines

The Twelve Point Cap Screw 3089193, 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. Below is a detailed description of how this part integrates with specific Cummins engines:

ISZ13 CM2150 Z105, QSZ13 CM2150 Z101, QSZ13 CM2150 Z102

The Twelve Point Cap Screw 3089193 is utilized in the ISZ13 CM2150 Z105, QSZ13 CM2150 Z101, and QSZ13 CM2150 Z102 engines. These engines benefit from the screw’s high strength and durability, which is essential for maintaining the integrity of various engine components under operational stress.

QSK45 CM500, QSK60 CM500, QSK78 CM500

In the QSK45 CM500, QSK60 CM500, and QSK78 CM500 engines, the Twelve Point Cap Screw 3089193 plays a crucial role in securing multiple parts. Its design allows for precise and reliable fastening, which is vital for the proper functioning of these engines. The screw’s twelve-point profile ensures a better grip and reduces the likelihood of stripping, making it ideal for high-torque applications.

QSK60 CM850 MCRS, QSK60 G CM2358 K110, QSK60G

For the QSK60 CM850 MCRS, QSK60 G CM2358 K110, and QSK60G engines, the Twelve Point Cap Screw 3089193 is employed in several key areas. Its application in these engines highlights its versatility and effectiveness in providing secure fastening solutions. The screw’s design ensures that components remain tightly secured, even under the demanding conditions these engines operate.

Z13 Z108G

The Z13 Z108G engine also incorporates the Twelve Point Cap Screw 3089193. This engine relies on the screw’s strength and reliability to maintain the structural integrity of its components. The screw’s twelve-point design is particularly beneficial in this context, as it provides a stable and secure fastening solution.

Role of Part 3089193 Twelve Point Cap Screw in Engine Systems

In the intricate assembly of engine systems, the part 3089193 Twelve Point Cap Screw serves as a fundamental fastening component, ensuring the secure attachment and alignment of various critical components.

Bracket and Lifting Mechanisms

The Twelve Point Cap Screw is instrumental in securing brackets that support lifting mechanisms. These brackets must withstand significant stress during operation, and the robust design of the Twelve Point Cap Screw provides the necessary stability and resistance to loosening.

Housing and Flywheel Assembly

Within the housing, which encases sensitive engine components, the Twelve Point Cap Screw plays a key role in maintaining the integrity of the assembly. It ensures that the flywheel, a component vital for smooth engine operation, is firmly attached to its housing, preventing any misalignment that could lead to operational inefficiencies or damage.

Lever and Rocker Systems

In lever and rocker systems, where precision and durability are paramount, the Twelve Point Cap Screw is used to fasten these components securely. This is particularly important in the rocker top-level assembly lever, where the screw ensures that the lever operates within its designed parameters, contributing to the overall efficiency and reliability of the engine.

Support Structures

The screw is also pivotal in support structures throughout the engine. These supports are essential for maintaining the structural integrity of the engine, especially in high-stress areas. The Twelve Point Cap Screw’s design allows for easy and secure installation, which is crucial in these applications.

Front Engine Components

At the front of the engine, where components are often exposed to the most dynamic forces, the Twelve Point Cap Screw is used to secure various parts. Its application here ensures that these components remain in place and function correctly under varying operational conditions.

Conclusion

The part 3089193 Twelve Point Cap Screw is a versatile and reliable fastening solution in engine systems, contributing to the secure and efficient operation of a wide range of components. Its use in various Cummins engine models underscores its importance in maintaining engine performance and reliability.