3955030
Pin Dowel
Cummins®

Introduction

The Cummins 3955030 Pin Dowel is a specialized component designed for use in heavy-duty truck assemblies. Its purpose is to ensure precise alignment and stability between mating parts, which is vital for the efficient operation and longevity of truck components. This pin dowel is integral to maintaining the structural integrity and performance of various truck systems.

Basic Concepts of Pin Dowels

Pin dowels are cylindrical pins used in mechanical assemblies to align and stabilize mating parts. They function by fitting into corresponding holes in the components they connect, ensuring that these parts remain in the correct position relative to each other. This alignment is crucial for the proper functioning of mechanical systems, as it helps to distribute loads evenly and prevent excessive wear or failure of the components ¹.

Purpose of the Cummins 3955030 Pin Dowel

The Cummins 3955030 Pin Dowel plays a specific role in the operation of heavy-duty trucks by maintaining the precise alignment and integrity of truck components. It is designed to fit into pre-drilled holes in mating parts, securing them in place and ensuring that they operate within the designed parameters. This alignment is particularly important in high-stress environments, where even minor misalignments can lead to significant mechanical issues ².

Key Features

The Cummins 3955030 Pin Dowel is characterized by several key features that enhance its performance and durability. It is typically made from high-strength materials, such as hardened steel, to withstand the rigors of heavy-duty truck operation. The pin dowel is precision-machined to ensure a tight fit in the corresponding holes, which is essential for maintaining alignment. Additionally, its design may include features such as chamfered ends to facilitate easy insertion and reduce the risk of damage during installation ³.

Benefits

Using the Cummins 3955030 Pin Dowel offers several benefits. It provides improved mechanical stability by ensuring that mating parts remain aligned under load, which can enhance the overall performance and reliability of the truck. Enhanced precision in component alignment can lead to more efficient operation, reduced wear on components, and potentially increased safety by minimizing the risk of mechanical failure. Additionally, the durability of the pin dowel contributes to the longevity of the truck’s components, reducing the need for frequent replacements.

Installation Process

Proper installation of the Cummins 3955030 Pin Dowel is critical for its effective performance. The process involves several steps: first, ensuring that the mating parts are clean and free of debris; second, aligning the parts according to the manufacturer’s specifications; and third, inserting the pin dowel into the pre-drilled holes. It is important to use the correct tools to avoid damaging the pin dowel or the mating parts. After installation, alignment checks should be performed to confirm that the parts are correctly positioned.

Troubleshooting and Maintenance

Common issues with pin dowels may include misalignment, wear, or damage due to improper installation or operation. Identifying these problems early can prevent more significant mechanical issues. Maintenance practices for the Cummins 3955030 Pin Dowel include regular inspection for signs of wear or damage, ensuring that it remains properly aligned, and replacing it if necessary to maintain the integrity of the truck’s components.

Compatibility and Applications

The Cummins 3955030 Pin Dowel is designed for use in various truck models and systems, demonstrating its versatility and importance across different truck components. Its compatibility with a wide range of applications makes it a valuable component for maintaining the performance and reliability of heavy-duty trucks.

About Cummins

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 reputation for reliability and performance in the automotive and heavy-duty truck industry. The Cummins 3955030 Pin Dowel is a testament to the company’s dedication to providing high-quality components that enhance the operation and durability of heavy-duty trucks.

Pin Dowel 3955030 Compatibility with Cummins Engines

The Pin Dowel 3955030, manufactured by Cummins, is a crucial component that fits into various Cummins engine models. This part is designed to ensure precise alignment and stability within the engine assembly. Below is a detailed description of its compatibility across different engine series.

ISB Series

• ISB CM2150
• ISB CM850
• ISB/ISD6.7 CM2150 SN
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B140
• ISB5.9 CM2880 B149
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

The Pin Dowel 3955030 is compatible with the ISB series engines, which include both 5.9 and 6.7-liter variants. This part is essential for maintaining the alignment of various engine components, ensuring smooth operation and longevity of the engine.

ISBE Series

• ISBE CM2150
• ISBE4 CM850

The ISBE series engines also utilize the Pin Dowel 3955030. This part is integral to the structural integrity and operational efficiency of these engines, ensuring that all moving parts remain properly aligned.

QSB Series

• QSB4.5 CM850(CM2850)
• QSB5.9 CM2880 B115
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850(CM2850)
• QSB6.7 M CM2250
• QSB7 CM2880 B117

The QSB series engines, ranging from 4.5 to 7 liters, also incorporate the Pin Dowel 3955030. This part is vital for the proper functioning of these engines, ensuring that the alignment of critical components is maintained throughout the engine’s operational life.

B6.7 Series

• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125

The B6.7 series engines, with their various configurations, also rely on the Pin Dowel 3955030. This part ensures that the engine’s internal components are correctly aligned, contributing to the overall performance and durability of the engine.

By ensuring precise alignment and stability, the Pin Dowel 3955030 plays a critical role in the functionality and longevity of these Cummins engines.

Role of Part 3955030 Pin Dowel in Engine Systems

The part 3955030 Pin Dowel is instrumental in ensuring the precise alignment and secure fitting of various engine components. Within the Cylinder Block, this pin dowel is utilized to maintain the correct positioning of the Engine Crankshaft. Its role is to prevent any lateral movement that could lead to misalignment, which is essential for the smooth operation of the engine.

In the context of a Long Block assembly, the pin dowel ensures that all components attached to the crankshaft are correctly aligned. This includes the flywheel or flexplate, which are critical for transmitting power from the engine to the transmission. Proper alignment here is key to avoiding vibrations and ensuring efficient power transfer.

Additionally, the pin dowel plays a part in the installation of the Vibration Damper. This component is attached to the front of the crankshaft to reduce vibrations caused by the engine’s operation. The pin dowel ensures that the vibration damper is mounted correctly, which is vital for the longevity of the crankshaft and the overall smoothness of the engine’s operation.

In summary, the part 3955030 Pin Dowel is a small yet significant component that contributes to the accurate alignment and secure fitting of various engine parts, playing a key role in the engine’s performance and durability.

Conclusion

The Cummins 3955030 Pin Dowel is a critical component in the maintenance and operation of heavy-duty trucks and Cummins engines. Its role in ensuring precise alignment and stability of mating parts contributes significantly to the performance, reliability, and longevity of these systems. Proper installation, regular maintenance, and understanding its compatibility across various engine models are essential for maximizing the benefits of this Cummins part.