3928844
Double End Plain Stud
Cummins®

Introduction

The Double End Plain Stud 3928844 is a specialized fastener produced by Cummins, a leading manufacturer in the commercial truck industry. This component is designed for use in heavy-duty applications, where it plays a significant role in the assembly and structural integrity of truck components. Cummins is renowned for its high-quality engine and powertrain solutions, and this Cummins part is a testament to their commitment to durability and performance in demanding environments ¹.

Basic Concepts

A Double End Plain Stud is a type of fastener characterized by threaded sections on both ends, allowing it to be used in applications where a traditional bolt and nut combination may not be feasible. The construction of the 3928844 typically involves high-strength materials to withstand the rigors of commercial truck operations. It functions by being inserted through pre-drilled holes in components and secured with nuts on both ends, providing a strong and reliable connection ².

Purpose and Role in Truck Operation

The 3928844 serves a vital function in the operation of commercial trucks by connecting various components securely. It is often used in applications where vibration and dynamic loads are present, ensuring that parts remain firmly attached. This stud contributes to the overall structural integrity of the truck, facilitating efficient and safe operation ³.

Key Features

The 3928844 is distinguished by several key features. Its double-ended design allows for secure fastening from both sides, enhancing stability. The material composition typically includes high-strength steel, which provides excellent resistance to wear and corrosion. Additionally, the stud may feature specific thread pitches and lengths tailored to meet the requirements of various truck components.

Benefits

The use of the 3928844 offers several benefits. Its robust construction ensures durability under heavy-duty conditions, while the double-ended design enhances reliability by providing a secure connection. Ease of installation is another advantage, as the stud can be quickly and efficiently fastened using standard tools, reducing downtime during maintenance procedures.

Installation Process

Proper installation of the 3928844 involves several steps to ensure a secure fit. Begin by aligning the stud with the pre-drilled holes in the components. Insert the stud through the holes and secure it with nuts on both ends. Use a torque wrench to tighten the nuts to the manufacturer’s specified torque settings, ensuring even pressure is applied to both ends. This process helps prevent over-tightening or under-tightening, which could compromise the connection.

Common Issues and Troubleshooting

Common issues with the 3928844 may include corrosion due to exposure to harsh environments or loosening over time due to vibration. To address corrosion, regular inspections should be conducted, and any signs of rust should be treated promptly with a suitable corrosion inhibitor. If loosening is detected, re-torque the nuts to the specified settings and consider using lock washers or thread locker to enhance security.

Maintenance Tips

To ensure the longevity and optimal performance of the 3928844, regular maintenance is recommended. This includes periodic inspections for signs of wear, corrosion, or loosening. Replace the stud if any damage is detected, and ensure that all fastening components are in good condition. Adhering to the manufacturer’s torque specifications during installation and re-torquing will also contribute to the stud’s durability.

Cummins 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 innovation, quality, and reliability in the commercial truck industry. Their product range includes engines, powertrains, and aftermarket parts, all designed to meet the demanding requirements of heavy-duty applications ⁴.

Compatibility

The 3928844 is designed to fit a variety of Cummins engines, ensuring a secure and reliable connection in various engine configurations. Here is a detailed look at its compatibility with specific Cummins engines:

6C8.3

The 6C8.3 engine benefits from the 3928844, providing a robust connection in critical areas of the engine.

F4.5 CM2620 F139B

In the F4.5 CM2620 F139B engine, this stud is used to secure components that require a dependable fastening solution, ensuring the engine operates smoothly and efficiently.

ISB CM550

The ISB CM550 engine utilizes the 3928844 for its durability and precision, which is essential for maintaining the structural integrity of the engine.

ISC CM554, ISL CM554, QSC8.3 CM554, QSL9 CM554

These engines, including the ISC CM554, ISL CM554, QSC8.3 CM554, and QSL9 CM554, all incorporate the 3928844. This part is critical in these engines for its ability to withstand high stress and provide a stable connection.

QST30 CM2350 T101

The QST30 CM2350 T101 engine also relies on the 3928844, ensuring that all connected components are held securely in place, contributing to the overall reliability and performance of the engine.

Role in Engine Systems

The 3928844 is an essential component in the assembly and operation of various engine systems. Its primary function is to securely connect and align different parts, ensuring efficient power transmission and structural integrity.

Compressor

In the compressor section of an engine, the 3928844 is used to fasten the compressor wheel to the shaft. This connection is vital for maintaining the precise alignment needed for optimal airflow and compression. The stud ensures that the compressor wheel operates smoothly, contributing to the overall efficiency of the air compression process.

Air System

Within the air system, the 3928844 plays a role in securing components such as intercoolers or air filters to the engine block or other structural elements. This secure attachment helps maintain the integrity of the air pathway, ensuring that air flows unobstructed and efficiently through the system. Proper attachment is key to preventing leaks and maintaining pressure within the air system.

Drive System

In the drive system, the 3928844 is often used to connect drive pulleys or gears to the engine’s crankshaft or other rotating components. This connection is essential for transmitting power from the engine to various accessories and systems. The stud’s robust design ensures that the drive components remain firmly in place, even under high torque and rotational speeds.

Front Gear Train Accessory

For front gear train accessories, the 3928844 is employed to fasten gears, sprockets, or other rotating elements to the gear train housing or shaft. This secure attachment is important for maintaining the precise gear mesh and ensuring smooth operation of the accessory drives. The stud helps in distributing the load evenly, reducing wear and tear on the components.

Conclusion

Overall, the 3928844 is a versatile and reliable component that enhances the performance and durability of various engine systems by providing a strong and secure connection between critical parts. Regular maintenance and proper installation are key to ensuring its longevity and optimal performance.