202903
Roll Pin
Cummins®

The Roll Pin 202903, manufactured by Cummins, is a component designed for use in commercial trucks. It ensures mechanical integrity and operational efficiency within the vehicle’s mechanical system.

Basic Concepts of Roll Pins

Roll pins are cylindrical fasteners used in mechanical assemblies to hold components in place. They are inserted into pre-drilled holes and expand slightly upon insertion, creating a secure fit that resists movement and vibration. This mechanism maintains the alignment and stability of parts within a machine, ensuring they function as intended under various operational conditions ¹.

Role of the 202903 Roll Pin in Truck Operation

In commercial trucks, the 202903 Roll Pin secures specific components within the truck’s mechanical system. Its strategic placement ensures parts remain aligned and operate smoothly, contributing to the overall stability and efficiency of the truck’s mechanical operations.

Key Features

The 202903 Roll Pin is characterized by several key features that enhance its performance and durability. It is made from high-quality materials, ensuring resistance to wear and corrosion. Its precise dimensions and design characteristics are tailored to fit specific applications within commercial trucks, providing a secure and stable connection between components. These features contribute to the roll pin’s ability to withstand the rigors of truck operation, maintaining its integrity over time ².

Benefits

The use of the 202903 Roll Pin in commercial trucks offers several benefits. It improves mechanical stability by securely holding components in place, which is vital for the smooth operation of the truck. The design of the roll pin also facilitates ease of installation, allowing for quick and efficient assembly or replacement. Furthermore, by ensuring components remain properly aligned and stable, the roll pin contributes to the overall efficiency and reliability of the truck, enhancing its performance on the road ³.

Troubleshooting and Maintenance

Common issues associated with roll pins include wear, corrosion, and improper fit, which can lead to component misalignment or failure. Troubleshooting these problems involves inspecting the roll pin and its surrounding components for signs of damage or wear. Maintenance practices to ensure the longevity and proper function of the 202903 Roll Pin include regular inspection for signs of wear or damage, proper lubrication where applicable, and replacement of the roll pin if it shows signs of failure. These practices help maintain the mechanical integrity and operational efficiency of the truck.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has established itself as a trusted name in the automotive industry, known for its commitment to quality, innovation, and customer satisfaction. The company’s expertise in engine technology and related components, such as the 202903 Roll Pin, underscores its dedication to providing reliable and efficient solutions for commercial vehicle applications.

Roll Pin (Part 202903) Compatibility with Cummins Engines

The Roll Pin (Part 202903) manufactured by Cummins is designed to fit seamlessly into multiple Cummins engine models, ensuring compatibility across a range of engine types.

G855 Series

• G855
• G855 CM558
• GTA855 CM558 (CM2358) G101

N14 Series

• N14 CELECT
• N14 CELECT PLUS
• N14 G
• N14 MECHANICAL

NH/NT 855 Series

• NH/NT 855

QSN14 Series

• QSN14 CM876 N103
• QSNT14 CM876 N102

V28

• V28

Role of Part 202903 Roll Pin in Engine Systems

The 202903 Roll Pin is an essential component in various engine systems, facilitating the secure and precise alignment of multiple parts. Its application spans across different assemblies and kits, ensuring the smooth operation of engine mechanisms.

Base Parts and Parts Base Configurations

The Roll Pin is utilized to maintain the alignment between the base and other structural components, ensuring that the base remains stable and correctly positioned relative to the engine block and other attached parts.

Block and Cylinder Block Assemblies

Within the Block and Cylinder Block assemblies, the Roll Pin plays a significant role in securing the cylinder to the block. This is particularly important in the Block, Cylinder Hardware Kit and Block, Cylinder Mounting where precise alignment is necessary for the efficient operation of the engine.

Short Cylinder Blocks

In the Block, Cyl Short NTC-300, Block, Cylinder HR NH5-1/8, Block, Cylinder NH-855, and Block, Cylinder NHS, the Roll Pin ensures that the short cylinder blocks are correctly aligned, which is vital for the engine’s performance and durability.

Cylinder Block Kit and Cylinder Block Mounting

The Roll Pin is integral in securing the components together, providing a stable foundation for the engine’s operation. Similarly, in the Cylinder Service Block and Service Cylinder Block, it ensures that service components are correctly aligned during maintenance procedures.

EBM-Block and EBM:Block Configurations

The Roll Pin is used to secure the EBM (Engine Block Module) to the main engine block, ensuring that all connected components function harmoniously.

Engine, Hardware Kit and Kit Assemblies

The Roll Pin helps in the precise alignment of hardware components, contributing to the overall stability and efficiency of the engine.

Main Bearing Shell and Mounting Block Setups

The Roll Pin ensures that the bearing shells are correctly positioned, which is essential for the smooth rotation of the crankshaft and the reduction of friction.

Short Block Assembly Kit and Subbase Configurations

The Roll Pin is used to secure the short block components and subbase, ensuring that the engine’s structural integrity is maintained during operation.

Conclusion

The 202903 Roll Pin plays a crucial role in the mechanical integrity and operational efficiency of commercial trucks and Cummins engines. Its design and features ensure secure and stable connections between components, contributing to the overall performance and reliability of the vehicle.