3882793
Twelve Point Cap Screw
Cummins®

The Twelve Point Cap Screw, Part #3882793, is a component manufactured by Cummins, a well-established name in the commercial truck industry. This screw is integral to the assembly and maintenance of commercial trucks, ensuring the secure fastening of various components. Cummins is renowned for its high-quality parts and robust engineering solutions, making the 3882793 a reliable choice for truck operators and maintenance professionals.

Basic Concepts of Twelve Point Cap Screws

A Twelve Point Cap Screw is a type of fastener characterized by its twelve-sided head, which provides a larger contact area compared to traditional hex screws. This design allows for greater torque application with reduced risk of cam-out, making it suitable for high-stress applications. In mechanical assemblies, these screws are used to secure components that require strong, durable fastening solutions. Their design ensures that they can withstand significant force without loosening, which is crucial in dynamic environments like those found in commercial trucks ¹.

Purpose of the 3882793 Twelve Point Cap Screw in Truck Operations

The 3882793 Twelve Point Cap Screw plays a specific role in the operation and maintenance of commercial trucks. It is used to fasten critical components that are subject to vibration and high stress. By providing a secure and stable connection, this screw helps maintain the integrity of the truck’s structure and ensures that components remain in place under various operating conditions. Its application is particularly important in areas where failure could lead to significant downtime or safety issues ².

Key Features

The 3882793 Twelve Point Cap Screw boasts several unique attributes that enhance its performance. Its twelve-sided head design allows for more torque to be applied without the risk of rounding off the corners, which is a common issue with hex screws. The screw is made from high-strength materials, ensuring durability and resistance to wear. Additionally, it may feature special coatings or treatments to improve corrosion resistance, making it suitable for use in harsh environments. These features collectively contribute to its reliability and longevity in commercial truck applications ³.

Benefits

Using the 3882793 Twelve Point Cap Screw offers several advantages. Its design provides enhanced durability, allowing it to withstand the rigors of commercial truck operations. The screw’s resistance to loosening ensures that components remain securely fastened, reducing the risk of failure. Improved load distribution is another benefit, as the larger contact area of the twelve-sided head helps to evenly distribute force across the screw, further enhancing its reliability.

Installation Guidelines

Proper installation of the 3882793 Twelve Point Cap Screw is vital to ensure optimal performance and longevity. Begin by cleaning the installation area to remove any debris or contaminants. Use the appropriate torque wrench to install the screw, applying the recommended torque specifications to avoid over-tightening, which can lead to damage, or under-tightening, which can compromise the fastening. Ensure that the screw is aligned correctly with the component it is securing to maintain the integrity of the assembly.

Troubleshooting Common Issues

Frequent problems associated with Twelve Point Cap Screws include loosening due to vibration, corrosion, and wear. To address these issues, regular inspections should be conducted to check for signs of loosening or corrosion. If loosening is detected, re-torque the screw to the specified value. In cases of corrosion, cleaning the affected area and applying a corrosion-resistant coating can help prevent further degradation. Replacing worn screws is also a necessary maintenance practice to ensure continued reliable performance.

Maintenance Tips

To prolong the life of the 3882793 Twelve Point Cap Screw and ensure continued reliable performance, regular maintenance routines are recommended. Inspect screws periodically for signs of wear, corrosion, or loosening. Clean the installation area regularly to prevent the buildup of contaminants that can accelerate wear. Applying a corrosion-resistant coating can further protect the screw from environmental factors. Following these maintenance practices will help maintain the screw’s integrity and performance over time.

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 has established a strong reputation in the commercial truck industry for producing high-quality, reliable components. The company’s product range includes engines, powertrain components, and aftermarket parts, all designed to meet the demanding requirements of commercial truck operations. Cummins’ commitment to innovation and customer satisfaction has made it a trusted name in the industry.

Twelve Point Cap Screw 3882793 in Cummins Engines

The Twelve Point Cap Screw 3882793 is a critical component in several Cummins engine models, ensuring secure fastening and stability in various applications. This part is integral to the assembly and maintenance of the following engines:

ISM Series Engines

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

The ISM series engines, known for their robust performance and reliability, utilize the Twelve Point Cap Screw 3882793 in several key areas. These engines are typically found in heavy-duty applications, including trucks and industrial machinery, where durability and strength are paramount.

L10 and M11 Series Engines

• L10 CELECT
• M11 CELECT
• M11 CELECT PLUS
• M11 MECHANICAL

The L10 and M11 series engines, which are designed for both on-highway and off-highway applications, also incorporate the Twelve Point Cap Screw 3882793. These engines benefit from the screw’s precise fit and secure fastening capabilities, ensuring that components remain tightly secured under various operating conditions.

N14 Series Engine

• N14 CELECT PLUS

The N14 CELECT PLUS engine, another heavy-duty powerhouse, uses the Twelve Point Cap Screw 3882793 in its construction. This engine is often utilized in applications requiring high torque and power, such as construction equipment and large trucks.

QSM Series Engines

• QSM11 CM570
• QSM11 CM876

The QSM11 series engines, which are designed for both on-highway and off-highway use, also incorporate the Twelve Point Cap Screw 3882793. This screw is essential in maintaining the integrity of the engine’s components, ensuring reliable performance in demanding environments.

The Twelve Point Cap Screw 3882793 is a testament to Cummins’ commitment to quality and precision, providing a reliable fastening solution across a wide range of engine models.

Role of Part 3882793 Twelve Point Cap Screw in Engine Systems

The Part 3882793 Twelve Point Cap Screw is integral to the assembly and maintenance of various engine components. Its primary function is to provide secure fastening, ensuring that parts remain firmly in place under the high stresses and vibrations typical of engine operation.

Camshaft and Cylinder Head Assembly

In the camshaft and cylinder head assembly, the Twelve Point Cap Screw is used to fasten the camshaft to the cylinder head. This secure attachment is essential for maintaining the precise alignment of the camshaft with the valve train, which is vital for the engine’s performance and efficiency. The screw’s design allows for easy tightening and removal, facilitating routine maintenance and adjustments.

Connecting Rod and Piston

For the connecting rod and piston assembly, the Twelve Point Cap Screw plays a role in securing the connecting rod to the engine piston kit. This connection must withstand significant forces during the engine’s operation, making the reliability of the fastening mechanism paramount. The screw ensures that the connecting rod remains securely attached to the piston, contributing to the smooth and efficient transfer of power from the piston to the crankshaft.

Injector and Oil Manifold

In the injector system, the Twelve Point Cap Screw is employed to fasten injectors to the engine block or cylinder head. This secure attachment is necessary to maintain the injector’s position and alignment, ensuring consistent fuel delivery and combustion. Similarly, in the oil manifold, the screw is used to fasten components that distribute oil to various engine parts, ensuring proper lubrication and cooling.

Performance Parts

When it comes to performance parts, the Twelve Point Cap Screw is often used in high-performance engine builds to secure aftermarket components. These may include upgraded camshafts, cylinder heads, and pistons. The screw’s robust design and ease of use make it ideal for applications where reliability and performance are paramount.

General Engine Maintenance

Beyond specific components, the Twelve Point Cap Screw is a versatile fastener used throughout engine maintenance and repair. Whether securing parts during an overhaul or replacing worn components, its role in ensuring a secure and lasting connection cannot be overstated.

Conclusion

The 3882793 Twelve Point Cap Screw is a critical component in the assembly and maintenance of commercial trucks and Cummins engines. Its unique design, high-strength materials, and corrosion-resistant features make it a reliable fastening solution for various engine components. Proper installation, regular maintenance, and timely troubleshooting are essential to ensure the continued performance and longevity of this Cummins part.