4928968
Pin Dowel
Cummins®

Introduction

The Cummins 4928968 Pin Dowel is a specialized component designed for use in heavy-duty truck applications. Its purpose is to ensure precise alignment and stability between mating parts within the engine or other mechanical systems. The significance of this pin dowel lies in its ability to enhance the performance and longevity of truck components by maintaining accurate positioning and reducing wear ¹.

Basic Concepts of Pin Dowels

A pin dowel is a cylindrical rod used in mechanical assemblies to align and secure components. It contributes to the precision and stability of parts by preventing lateral movement and ensuring that components remain in the correct position relative to each other. Pin dowels are commonly made from durable materials to withstand the stresses and loads encountered in various applications ².

Purpose of the Cummins 4928968 Pin Dowel

The Cummins 4928968 Pin Dowel plays a specific role in the operation of a truck by facilitating the accurate alignment of engine components. Within the engine, it helps to maintain the proper positioning of parts such as gears, bearings, and housings. This precise alignment is vital for the efficient operation of the engine, reducing the risk of misalignment-related issues and enhancing overall performance ³.

Key Features

The Cummins 4928968 Pin Dowel is characterized by several key features that enhance its performance and durability. These include its material composition, typically a high-strength alloy, which provides resistance to wear and corrosion. The dimensions of the pin dowel are carefully engineered to fit specific applications, ensuring a secure and stable connection. Additionally, design elements such as chamfered ends facilitate easy installation and reduce the risk of damage during assembly.

Benefits

Using the Cummins 4928968 Pin Dowel offers several advantages. It improves alignment between components, which is crucial for the smooth operation of mechanical systems. Reduced wear on mating parts is another benefit, as the pin dowel helps to distribute loads evenly and prevent excessive friction. Enhanced structural integrity is also achieved, as the pin dowel contributes to the overall stability of the assembly.

Installation Process

Proper installation of the Cummins 4928968 Pin Dowel involves several steps to ensure correct placement and function. Begin by cleaning the mating surfaces to remove any debris or contaminants. Next, align the components that the pin dowel will secure, ensuring they are in the correct position. Insert the pin dowel into the pre-drilled holes, using a press or similar tool to apply even pressure. Verify that the pin dowel is fully seated and that the components are aligned correctly. Finally, perform a visual inspection to confirm that the installation is secure and that there is no excessive play between the parts.

Troubleshooting and Maintenance

Common issues with pin dowels may include misalignment, wear, or damage. To diagnose problems, inspect the pin dowel and mating surfaces for signs of wear or damage. If misalignment is detected, re-evaluate the installation process to ensure components are correctly positioned. Regular maintenance practices, such as cleaning and inspecting the pin dowel and mating surfaces, can help prolong its life and effectiveness. Replace the pin dowel if significant wear or damage is observed to maintain the integrity of the assembly.

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 reputation for quality and innovation in the automotive and heavy-duty truck industry. The company offers a wide range of products, including engines, powertrain components, and aftermarket parts, designed to meet the demanding requirements of various applications. Cummins’ commitment to excellence and customer satisfaction has made it a trusted name in the industry.

Compatibility with Cummins Engines

The Pin Dowel part number 4928968, manufactured by Cummins, is designed to fit seamlessly within several of their engine models. This part is integral to the assembly and operation of the engines, ensuring precise alignment and stability of various engine components.

Cummins ISB/ISD4.5 Engines

The Pin Dowel 4928968 is compatible with the Cummins ISB/ISD4.5 engines, specifically those utilizing the CM2150 B119 engine configuration. This part plays a vital role in maintaining the alignment of the crankshaft and other related components, ensuring smooth engine operation and longevity.

Cummins ISBE Engines

For the Cummins ISBE engines, the Pin Dowel 4928968 is designed to fit within the ISBE CM800 and ISBE4 CM850 configurations. In these engines, the dowel pin is essential for the proper alignment of the camshaft and other internal components, contributing to the overall efficiency and performance of the engine.

The Pin Dowel 4928968 is engineered to meet the stringent requirements of Cummins’ high-performance engines, ensuring that it provides the necessary stability and precision in demanding applications.

Role of Part 4928968 Pin Dowel in Engine Systems

The 4928968 Pin Dowel is an essential component in ensuring the precise alignment and secure fitting of various engine parts. In the context of the Clutch and Rear components, this Pin Dowel plays a significant role.

Clutch Assembly

Within the Clutch Assembly, the 4928968 Pin Dowel is used to align the clutch plate with the flywheel. This alignment is necessary to ensure smooth engagement and disengagement of the clutch. The Pin Dowel helps maintain the correct positional relationship between these components, which is vital for the efficient transfer of power from the engine to the transmission. Proper alignment reduces wear and tear on the clutch components, enhancing the overall durability and performance of the clutch system.

Rear Engine Components

In the Rear section of the engine, the 4928968 Pin Dowel is often employed to align various rear-mounted accessories and components. For instance, it ensures that the rear main seal is correctly positioned relative to the crankshaft. This alignment is important for preventing oil leaks and maintaining the integrity of the engine’s lubrication system. Additionally, the Pin Dowel may be used in the attachment of the rear engine cover, ensuring that it is securely and accurately fitted, which is essential for protecting internal components from contaminants and maintaining engine compartment aesthetics.

Overall, the 4928968 Pin Dowel contributes to the reliable operation and longevity of engine systems by ensuring that components are correctly aligned and securely fitted.

Conclusion

The Cummins 4928968 Pin Dowel is a critical component in heavy-duty truck engines, ensuring precise alignment and stability of various engine components. Its role in maintaining the integrity and performance of engine systems cannot be overstated. Proper installation, regular maintenance, and timely replacement of this part are essential for the optimal operation of Cummins engines.