3718455
Thrust Ring Spacer
Cummins®

The Cummins 3718455 Thrust Ring Spacer is a critical component designed for use in heavy-duty truck engines. Its primary function is to maintain proper clearances and alignment within the engine, ensuring efficient operation and longevity of the engine components.

Basic Concepts of Thrust Ring Spacer

A Thrust Ring Spacer is a mechanical component that helps maintain the correct distance between moving parts within an engine. It provides a stable platform that allows for smooth operation and reduces friction. This spacer ensures that the components remain properly aligned, which is vital for the overall performance and durability of the engine ¹.

Purpose of the 3718455 Thrust Ring Spacer

The 3718455 Thrust Ring Spacer plays a role in the operation of a truck engine by maintaining bearing clearance and alignment. It ensures that the thrust bearing, which absorbs axial loads, operates within specified tolerances. This helps in reducing wear on the bearing and other related components, thereby contributing to the engine’s efficiency and reliability ².

Key Features

The 3718455 Thrust Ring Spacer is constructed from high-quality materials that offer durability and resistance to wear. Its design specifications include precise dimensions to ensure a perfect fit within the engine assembly. Unique attributes such as its robust construction and material composition enhance its performance under high-stress conditions typical in heavy-duty applications.

Benefits

The use of the 3718455 Thrust Ring Spacer offers several benefits. It contributes to improved engine efficiency by ensuring that components operate within optimal clearances. This reduces wear on components, leading to enhanced overall performance and longevity of the engine. Additionally, it helps in maintaining consistent engine operation, which is crucial for heavy-duty applications.

Installation Process

Proper installation of the 3718455 Thrust Ring Spacer involves several steps. First, ensure the engine is clean and free of debris. Use the appropriate tools to remove the old spacer, if applicable. Carefully place the new spacer in its designated location, ensuring it is correctly aligned. Double-check the installation to confirm that it is secure and properly positioned.

Troubleshooting and Maintenance

To troubleshoot issues related to the 3718455 Thrust Ring Spacer, inspect the component for signs of wear or damage. Routine maintenance practices include regular inspection during engine service intervals and ensuring that the spacer remains clean and free of contaminants. Proper maintenance can prolong the lifespan of the spacer and ensure optimal engine performance.

Common Failure Modes

Common failure modes associated with the 3718455 Thrust Ring Spacer include wear, deformation, or improper installation. Wear can occur due to high loads or insufficient lubrication, while deformation may result from excessive heat or mechanical stress. Improper installation can lead to misalignment and increased wear on related components. Recommended corrective actions include replacing the spacer and addressing any underlying issues that may have contributed to the failure.

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 is renowned for its high-quality products and innovative solutions in the automotive industry. The company’s reputation is built on a commitment to excellence, reliability, and customer satisfaction.

Cummins Thrust Ring Spacer 3718455 Compatibility

The Cummins Thrust Ring Spacer part number 3718455 is designed to fit a variety of Cummins engines. Here is a detailed look at its compatibility across different engine models:

K Series Engines

• K19: This part is compatible with the K19 engine, ensuring proper spacing and alignment of thrust rings, which is crucial for maintaining engine balance and performance.
• K38: The 3718455 Thrust Ring Spacer is also suitable for the K38 engine, providing the necessary support and stability for the thrust rings.

N Series Engines

• N14 G: The N14 G engine can utilize the 3718455 part to maintain the correct thrust ring spacing, contributing to the engine’s overall efficiency and longevity.
• N14 MECHANICAL: Similarly, the N14 MECHANICAL engine benefits from this thrust ring spacer, ensuring that the thrust rings are properly positioned to handle the engine’s operational stresses.

NH/NT Series Engines

• NH/NT 855: The NH/NT 855 engine is another model that can incorporate the 3718455 Thrust Ring Spacer. This part helps in maintaining the integrity of the thrust ring system, which is vital for the engine’s smooth operation.

V Series Engines

• V28: The V28 engine is also compatible with the 3718455 Thrust Ring Spacer. This ensures that the thrust rings are correctly spaced, which is essential for the engine’s performance and durability.

Each of these engines relies on the precise function of the thrust ring spacer to maintain the alignment and performance of the thrust rings. Proper installation of this part is crucial for the longevity and efficiency of the engine.

Role of Part 3718455 Thrust Ring Spacer in Engine Systems

In the context of engine systems, particularly those involving turbochargers, the part 3718455 Thrust Ring Spacer serves a significant function. This component is integral in maintaining the proper spacing and alignment between various turbocharger components.

When installed in an aftermarket turbocharger, the Thrust Ring Spacer ensures that the core and housing assembly operates efficiently. It helps in maintaining the correct distance between the core assembly and other components, which is essential for the optimal performance of the turbocharger.

In the core assembly 4LGK, the spacer plays a role in aligning the core with the housing, allowing for smooth operation and reducing the risk of component wear. Similarly, in the rotor assembly 4LGZ, it assists in keeping the rotor properly positioned within the turbocharger housing.

For the Heat3B turbocharger and the Turbocharger HC3, the Thrust Ring Spacer is vital in ensuring that the turbocharger core is correctly spaced from the housing. This is particularly important in high-performance applications where even minor misalignments can lead to significant efficiency losses.

In the context of a turbocharger conversion kit or a turbocharger kit, the spacer is often included to ensure that all components fit together precisely. This is crucial when upgrading or modifying an engine’s turbocharger system to enhance performance.

Overall, the Thrust Ring Spacer is a key component in the assembly and maintenance of turbocharger systems, contributing to the efficiency and longevity of the turbocharger and the engine as a whole.

Conclusion

The Cummins 3718455 Thrust Ring Spacer is a vital component in heavy-duty truck engines, ensuring proper clearances and alignment for efficient operation and longevity. Its robust construction and precise design contribute to the overall performance and durability of the engine. Proper installation, maintenance, and understanding of its role in engine systems are essential for maximizing the benefits of this part.