4974949
Pin Dowel
Cummins®

Introduction

The 4974949 Pin Dowel is a component manufactured by Cummins, a prominent entity in the commercial truck industry. This part is designed for use in commercial trucks, where it ensures the proper alignment and secure fitting of various mechanical parts, particularly within the engine or transmission systems.

Basic Concepts of Pin Dowels

A pin dowel is a cylindrical rod used in mechanical assemblies to align and secure components. It functions by fitting into matching holes in the parts it connects, thereby ensuring that these parts are correctly positioned relative to each other. This alignment is vital for the smooth operation and durability of mechanical systems ¹.

Purpose of the 4974949 Pin Dowel

The 4974949 Pin Dowel serves a specific function in the operation of a truck. It is involved in aligning and securing parts within the engine or transmission, which helps maintain the precise mechanical relationships necessary for efficient operation. By ensuring that components are correctly aligned, it contributes to the overall performance and reliability of the truck’s mechanical systems.

Key Features

The 4974949 Pin Dowel is characterized by several key features that enhance its performance and durability. It is made from a material that offers the necessary strength and resistance to wear. Its dimensions are precisely engineered to fit specific applications, ensuring a secure and reliable connection. Additionally, any unique design elements incorporated into this pin dowel are aimed at improving its functionality within the truck’s mechanical systems.

Benefits

Using the 4974949 Pin Dowel provides several benefits. It offers improved alignment precision, which is crucial for the efficient operation of mechanical components. Enhanced component security is another advantage, as the pin dowel helps prevent parts from shifting out of alignment during operation. This can lead to potential increases in operational efficiency and longevity of the truck’s mechanical systems.

Installation Process

Installing the 4974949 Pin Dowel requires following a specific procedure to ensure correct placement and function. The process involves preparing the components for alignment, inserting the pin dowel into the designated holes, and securing it in place. Tools or additional components may be required, and it is important to follow best practices to ensure the pin dowel is installed correctly.

Troubleshooting and Maintenance

Common issues related to the 4974949 Pin Dowel, such as misalignment or wear, can be identified through regular inspections. Maintenance practices to prolong its service life include conducting regular inspections at specified intervals and following replacement guidelines when necessary. This helps ensure the continued reliable operation of the truck’s mechanical systems.

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of products and strong reputation for quality and reliability. The company has a long history of innovation and excellence, which underscores the quality and dependability of components like the 4974949 Pin Dowel. Cummins’ commitment to producing high-quality parts contributes to the efficient and reliable operation of commercial trucks.

Pin Dowel 4974949 Compatibility with Cummins Engines

The Pin Dowel part number 4974949, manufactured by Cummins, is designed to fit a variety of their engine models. Below is a detailed description of its compatibility across different engine types.

ISX12 Series

• ISX12 CM2350 X102
• ISX12 G CM2180 EJ
• ISX12/ISX11.9 CM2250

The Pin Dowel 4974949 is compatible with the ISX12 series engines, which are known for their robust performance and reliability. These engines are often used in heavy-duty applications, and the dowel plays a crucial role in maintaining the alignment and stability of various engine components.

ISZ13 Series

• ISZ13 CM2150 Z105

The ISZ13 CM2150 Z105 engine also supports the Pin Dowel 4974949. This engine variant is typically used in applications requiring a balance of power and efficiency, making the dowel an essential component for its operation.

QSX11.9 Series

• QSX11.9 CM2250 ECF

The QSX11.9 CM2250 ECF engine is another model that is compatible with the Pin Dowel 4974949. This engine is often utilized in on-highway applications, and the dowel ensures the precise alignment of critical parts, contributing to the engine’s overall performance.

QSZ13 Series

• QSZ13 CM2150 Z101
• QSZ13 CM2150 Z102

The QSZ13 series engines, including the QSZ13 CM2150 Z101 and QSZ13 CM2150 Z102, also fit the Pin Dowel 4974949. These engines are designed for vocational use, providing the necessary power and durability for demanding tasks.

Z13 Series

• Z13 Z108G

Lastly, the Z13 Z108G engine is compatible with the Pin Dowel 4974949. This engine is often used in specialized applications where reliability and performance are paramount.

Each of these engines relies on the Pin Dowel 4974949 to ensure the proper alignment and function of various components, contributing to the overall efficiency and longevity of the engine.

Role of Part 4974949 Pin Dowel in Engine Systems

The 4974949 Pin Dowel is an essential component in ensuring the precise alignment and secure fitting of various engine parts. In the context of engine systems, this pin dowel plays a significant role in maintaining the integrity and functionality of several key components.

Gear Housing

Within the gear housing, the 4974949 Pin Dowel ensures that gears are correctly aligned during assembly. This alignment is vital for the smooth operation of the gear system, preventing undue wear and potential damage to the gears. The pin dowel helps in maintaining the exact positioning of gears relative to each other, which is necessary for efficient power transmission.

Housing

In the broader housing assembly, the 4974949 Pin Dowel assists in aligning various sub-components. This includes ensuring that the housing itself is correctly positioned in relation to other engine parts. Proper alignment is key to preventing leaks, reducing friction, and enhancing the overall durability of the housing.

Flywheel

The flywheel is another component where the 4974949 Pin Dowel is instrumental. It ensures that the flywheel is accurately aligned with the crankshaft and other connected parts. This precise alignment is essential for the flywheel’s function in storing rotational energy and smoothing out the power delivery from the engine.

Rear Gear

In the rear gear assembly, the 4974949 Pin Dowel helps in maintaining the correct spacing and alignment of the rear gears. This is important for the efficient transfer of power from the engine to the transmission system. Proper alignment of the rear gears ensures that the engine operates smoothly and efficiently, reducing the likelihood of mechanical failures.

Overall, the 4974949 Pin Dowel is a small yet significant component that contributes to the reliable operation of engine systems by ensuring the accurate alignment and secure fitting of various engine parts.

Conclusion

The 4974949 Pin Dowel by Cummins is a critical component in the alignment and secure fitting of various mechanical parts within commercial truck engines and transmissions. Its precise engineering and compatibility with multiple Cummins engine models underscore its importance in maintaining the efficiency and reliability of these systems. Regular maintenance and proper installation are essential to ensure the continued performance of this part.