3089194
Twelve Point Cap Screw
Cummins®

The Twelve Point Cap Screw, Part #3089194, manufactured by Cummins, is a specialized fastener designed for use in commercial truck applications. Cummins, a well-established name in the commercial truck industry, produces this part to meet the demanding requirements of heavy-duty truck operations. This cap screw is integral to ensuring the secure assembly of various truck components, contributing to the overall reliability and performance of commercial vehicles.

Basic Concepts of Twelve Point Cap Screws

A twelve point cap screw is a type of fastener that features a hexagonal socket with twelve equally spaced points, as opposed to the six points found on standard hex cap screws. This design allows for a greater contact area between the screwdriver and the screw head, which can enhance torque application and reduce the risk of cam-out—a situation where the screwdriver slips out of the screw head during tightening or loosening ¹. In the automotive industry, twelve point cap screws are commonly used in applications where high torque and secure fastening are required, such as in engine components, transmission systems, and chassis assemblies.

Purpose and Role in Truck Operation

The Twelve Point Cap Screw Part #3089194 plays a specific role in the operation of commercial trucks by securely fastening critical components. Its design ensures that it can withstand the high torque and stress encountered in heavy-duty applications. By providing a reliable fastening solution, this cap screw contributes to the overall functionality and reliability of truck components, ensuring that they remain securely in place under various operating conditions.

Key Features

The Twelve Point Cap Screw Part #3089194 boasts several key features that enhance its performance. Its twelve-point design allows for better torque application and reduces the likelihood of cam-out. The screw is made from high-quality materials, typically a durable alloy steel, which provides excellent strength and resistance to wear ². Additionally, the screw may feature a corrosion-resistant coating to protect against environmental factors, ensuring longevity in various operating conditions.

Benefits

Using the Twelve Point Cap Screw Part #3089194 offers several benefits. The enhanced torque application capability ensures that components are securely fastened, reducing the risk of loosening over time. The reduced risk of cam-out during installation and removal makes the fastening process more efficient and reliable. Furthermore, the durable material composition and potential corrosion-resistant coating contribute to the screw’s longevity and performance in heavy-duty applications.

Installation Considerations

Proper installation of the Twelve Point Cap Screw Part #3089194 is crucial to ensure its effectiveness. It is recommended to use the appropriate torque specifications provided by the manufacturer to avoid over-tightening or under-tightening ³. Utilizing the correct tools, such as a twelve-point socket wrench, will facilitate a secure and precise installation. Following these guidelines will help maintain the integrity of the fastening and the components being secured.

Troubleshooting and Maintenance

Common issues with twelve point cap screws may include loosening due to vibration or corrosion. Regular inspection and maintenance can help identify and address these issues promptly. If a screw shows signs of wear or corrosion, it should be replaced to ensure continued reliability. Additionally, ensuring that all fasteners are tightened to the manufacturer’s specified torque can prevent loosening and maintain secure assemblies.

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 in the commercial truck industry for producing high-quality, reliable components. Their product range includes engines, powertrain components, and aftermarket parts, all designed to meet the rigorous demands of heavy-duty applications. Cummins’ commitment to innovation and customer satisfaction has solidified its position as a trusted name in the industry.

Twelve Point Cap Screw 3089194 in Cummins Engines

The Twelve Point Cap Screw 3089194, manufactured by Cummins, is a critical component in several of their engine models. This screw is integral to the assembly and maintenance of various engine parts, ensuring structural integrity and operational efficiency.

QSK45 CM500 and QSK60 CM500

In the QSK45 CM500 and QSK60 CM500 engines, the Twelve Point Cap Screw 3089194 is used in multiple applications. These engines, known for their robust design and reliability, require precise fastening to maintain the alignment and stability of engine components. The screw’s twelve-point design provides better grip and reduces the likelihood of rounding off, which is crucial in high-stress environments.

QSK60 CM850 MCRS

The QSK60 CM850 MCRS engine also utilizes the Twelve Point Cap Screw 3089194. This engine, designed for heavy-duty applications, benefits from the screw’s ability to withstand significant torque and pressure. The screw’s use in this model ensures that critical components remain securely fastened, contributing to the engine’s overall durability and performance.

QSK60 G CM2358 K110 and QSK60G

For the QSK60 G CM2358 K110 and QSK60G engines, the Twelve Point Cap Screw 3089194 plays a vital role in the assembly of various engine parts. These engines, which are part of Cummins’ advanced lineup, require high-quality fasteners to ensure optimal performance and longevity. The screw’s design and material properties make it an ideal choice for these applications.

QSK95 CM2350 K111 and QSK95 CM2350 K113

The QSK95 CM2350 K111 and QSK95 CM2350 K113 engines also incorporate the Twelve Point Cap Screw 3089194. These engines, known for their power and efficiency, depend on the screw’s reliability to maintain the integrity of their complex assemblies. The screw’s use in these models ensures that all components are securely fastened, contributing to the engine’s overall performance and durability.

Part 3089194 Twelve Point Cap Screw Component Usage

The part 3089194 Twelve Point Cap Screw is integral to the assembly and functionality of various engine components. Its design allows for secure fastening, which is essential for maintaining the structural integrity and operational efficiency of the engine system.

Bracket

In engine systems, brackets serve as mounting points for various components. The Twelve Point Cap Screw ensures that these brackets are firmly attached to the engine block or other structural elements. This secure attachment is vital for the stability of components such as sensors, hoses, and smaller mechanical parts that rely on the bracket for support.

Lifting Mechanism

For components that require periodic maintenance or replacement, such as filters or inspection covers, the Twelve Point Cap Screw plays a role in the lifting mechanism. It provides the necessary torque to loosen or tighten fasteners, ensuring that these components can be safely and efficiently removed or installed.

Lever

Levers are used in engine systems for a variety of functions, including actuating valves, operating clutches, and engaging gears. The Twelve Point Cap Screw is often used to attach levers to their pivot points or mounting brackets. This ensures that the lever can operate smoothly and reliably under the stresses of engine operation.

Rocker

Rockers are components that transfer motion from the camshaft to the valves in an engine. The Twelve Point Cap Screw is employed to secure the rocker arm to its shaft or pivot point. This fastening is essential for maintaining the precise alignment and movement of the rocker, which directly impacts valve timing and engine performance.

Rocker Top Level Assembly Lever

In more complex engine designs, the rocker top level assembly lever is a critical component for fine-tuning valve operation. The Twelve Point Cap Screw is used to attach this lever to the rocker arm assembly, ensuring that adjustments can be made with accuracy and that the lever remains securely in place during engine operation. This contributes to the overall precision and reliability of the valve train system.

Conclusion

The Twelve Point Cap Screw Part #3089194 is a critical component in the assembly and maintenance of various engine components in Cummins engines. Its design, featuring twelve equally spaced points, enhances torque application and reduces the risk of cam-out, making it ideal for high-torque and high-stress applications. The screw’s durable material composition and potential corrosion-resistant coating ensure longevity and reliability in heavy-duty applications. Proper installation and maintenance are essential to ensure the screw’s effectiveness and the overall performance of the engine system.