4982125
Roll Pin
Cummins®

Introduction

The Cummins 4982125 Roll Pin is a specialized component designed for use in commercial truck operations. Its purpose is to provide a secure fit between moving parts within the engine or transmission system, ensuring smooth operation and reliability. The significance of this roll pin lies in its ability to maintain the integrity of mechanical connections under high stress and varying operational conditions ¹.

Basic Concepts of Roll Pins

Roll pins are cylindrical fasteners used in mechanical systems to align and secure components that rotate or move relative to each other. They function by being pressed into pre-drilled holes, creating a tight fit that resists movement. This design allows for the transfer of rotational or linear motion while maintaining alignment and stability between parts ².

Purpose of the Cummins 4982125 Roll Pin

The Cummins 4982125 Roll Pin plays a specific role in the operation of a truck by securing components within the engine or transmission system. It ensures that parts remain aligned and function correctly under the high stresses and temperatures encountered during operation. This roll pin is integral to maintaining the mechanical integrity and efficiency of the truck’s powertrain ³.

Key Features

The Cummins 4982125 Roll Pin is characterized by several key features that enhance its performance and durability. It is typically made from high-quality steel, offering strength and resistance to wear. Its precise dimensions ensure a snug fit within the designated holes, while its design may include features such as chamfered ends to facilitate easy installation and removal ⁴.

Benefits

Utilizing the Cummins 4982125 Roll Pin offers several advantages. It provides improved mechanical stability by securely locking components in place, which is crucial for the smooth operation of the engine or transmission. Additionally, its durable construction ensures longevity, even under demanding conditions, contributing to the overall reliability and performance of the truck ⁵.

Installation and Usage

Proper installation of the Cummins 4982125 Roll Pin is vital for ensuring optimal performance and integration within the truck’s mechanical system. It should be pressed into place using appropriate tools to achieve the correct fit without damage to the pin or surrounding components. Careful alignment and the use of the correct force are necessary to maintain the integrity of the connection ⁶.

Troubleshooting and Maintenance

Common issues with roll pins can include wear, misalignment, or damage due to excessive force during installation. Diagnosing problems may involve inspecting the pin and surrounding components for signs of wear or movement. Regular maintenance, including checking the fit and condition of the roll pin, can help ensure its reliable operation and longevity ⁷.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a history spanning over a century, Cummins has established a reputation for quality, innovation, and reliability in the commercial truck industry. Its product range is designed to meet the demanding requirements of commercial vehicle operators, ensuring performance, efficiency, and durability ⁸.

Cummins Engine Roll Pin 4982125

The Cummins engine part 4982125, identified as a Roll Pin, is a critical component in the assembly and operation of various Cummins engines. This roll pin is integral to the mechanical integrity and functionality of the engine, ensuring that moving parts are securely fastened and aligned.

Application in Cummins Engines

The Roll Pin 4982125 is utilized across several Cummins engine models, including but not limited to:

• B3.3 Series: This roll pin is essential in the B3.3 engine series, where it helps maintain the alignment and stability of various engine components. Its role is pivotal in ensuring that the engine operates smoothly and efficiently.

• Other Cummins Engines: While the B3.3 series is highlighted, the roll pin 4982125 is also compatible with other Cummins engine models. Its design and specifications are engineered to fit seamlessly into the engine’s architecture, providing a reliable connection between parts.

Importance of the Roll Pin

The roll pin serves as a fastener that secures two or more parts together, preventing relative motion between them. In the context of Cummins engines, this means that the roll pin 4982125 is crucial for maintaining the precise alignment of components that are subject to significant mechanical stress and movement. This ensures that the engine can withstand the rigors of operation without experiencing wear or failure due to misalignment ⁹.

Compatibility and Usage

When replacing or maintaining Cummins engines, it is essential to use the correct roll pin. The part number 4982125 is specifically designed for use in Cummins engines, ensuring compatibility and performance. Technicians and mechanics should refer to the engine’s service manual to confirm the correct placement and usage of this roll pin during assembly or repair processes ¹⁰.

Role of Part 4982125 Roll Pin in Engine Components

The part 4982125 Roll Pin is integral to the assembly and operation of several key engine components. In the Block, it ensures the proper alignment and secure fitting of various sub-components, contributing to the structural integrity and efficient operation of the engine.

Within the Cylinder, the Roll Pin facilitates the precise positioning of piston pins or wrist pins, which are essential for the smooth reciprocating motion of the piston. This alignment is vital for maintaining the balance and performance of the engine.

In the Cylinder Block, the Roll Pin plays a role in securing components such as camshafts or crankshafts, ensuring they are held in place with the correct orientation. This is important for the synchronized operation of the engine’s moving parts.

For the Long Block, which includes the cylinder block, crankshaft, pistons, and other essential components, the Roll Pin is used to maintain the alignment and secure fitting of these parts. This ensures that the long block operates as a cohesive unit, contributing to the overall efficiency and reliability of the engine ¹¹.

Conclusion

The Cummins 4982125 Roll Pin is a critical component in the operation and maintenance of Cummins engines. Its role in securing and aligning engine components ensures the smooth and efficient operation of the engine, contributing to the overall reliability and performance of commercial trucks. Proper installation, maintenance, and understanding of its application are essential for maximizing the benefits of this part.