3954616
Ring Dowel
Cummins®

Introduction

The Cummins 3954616 Ring Dowel is a specialized component designed for use in heavy-duty truck applications. Its purpose is to ensure precise alignment and secure positioning of various parts within the engine or transmission system. This component plays a role in maintaining the integrity and efficiency of mechanical assemblies in heavy-duty trucks.

Basic Concepts of Ring Dowel

A ring dowel is a cylindrical pin used in mechanical assemblies to align and position components accurately. It operates by fitting into pre-drilled holes in mating parts, ensuring they are correctly aligned during assembly. In the context of truck components, ring dowels help maintain the structural integrity and operational efficiency of the engine and transmission systems ¹.

Purpose of the 3954616 Ring Dowel

The 3954616 Ring Dowel is specifically designed to facilitate the accurate alignment of components within a truck’s engine or transmission system. By ensuring that parts are correctly positioned, it contributes to the smooth operation and longevity of the mechanical assembly. This component is integral to the proper functioning of the engine or transmission, helping to prevent misalignment and subsequent wear or failure of other parts ².

Key Features

The 3954616 Ring Dowel boasts several key features that enhance its effectiveness. These include a durable material composition, precise dimensions, and a design that ensures a secure fit within the assembly. The material used is typically robust to withstand the rigors of heavy-duty truck operation, while the dimensions are meticulously engineered to ensure a perfect fit in the designated holes ³.

Benefits

The advantages provided by the 3954616 Ring Dowel include improved alignment of components, which leads to enhanced durability and overall system efficiency. By ensuring that parts are correctly positioned, this component helps to reduce wear and tear, contributing to the longevity of the engine or transmission system. Additionally, proper alignment can lead to more efficient operation, potentially improving fuel efficiency and performance.

Installation Process

Installing the 3954616 Ring Dowel requires careful attention to detail to ensure proper alignment and secure fitting. The process involves cleaning the mating surfaces, inserting the dowel into the pre-drilled hole, and verifying that it is correctly positioned. Tools such as a torque wrench may be required to ensure that any associated components are tightened to the manufacturer’s specifications without over-tightening.

Troubleshooting Common Issues

Common problems associated with the 3954616 Ring Dowel may include misalignment or wear. To address these issues, it is important to inspect the dowel and mating surfaces for any signs of damage or improper fitting. If misalignment is detected, re-positioning the dowel or adjusting the mating components may be necessary. In cases of wear, replacement of the dowel may be required to restore proper function.

Maintenance Tips

Regular maintenance of the 3954616 Ring Dowel is crucial to ensure its longevity and optimal performance. This includes periodic inspection for signs of wear or damage, cleaning the mating surfaces to remove any debris, and verifying that the dowel remains correctly positioned. Adhering to recommended inspection intervals and performing routine cleaning can help prevent issues and ensure the continued efficiency of the engine or transmission system.

Role in Engine or Transmission System

The 3954616 Ring Dowel interacts with other components within the engine or transmission system by providing a stable and accurate alignment point. This ensures that all parts work together seamlessly, contributing to the overall performance and reliability of the system. Its role in maintaining proper alignment is fundamental to the efficient operation of the mechanical assembly.

Cummins Overview

Cummins Inc. is a renowned manufacturer of diesel engines and related technologies, with a rich history of innovation and excellence in the industry. The company is known for its commitment to quality and performance, making it a trusted name in the production of heavy-duty truck components. Cummins’ expertise in engine and transmission systems underscores the reliability and effectiveness of its products, including the 3954616 Ring Dowel.

Compatibility with Cummins Engines

The Ring Dowel part number 3954616, manufactured by Cummins, is designed to fit a variety of Cummins engine models. This dowel is integral to the assembly and operation of the engine, ensuring proper alignment and function of the piston rings. Below is a detailed breakdown of the engines that are compatible with this specific part.

B4.5 Series

• B4.5 CM2350 B129B
• B4.5 RGT

B6.7 Series

• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125

D4.0 Series

• D4.0 CM2620 D103B

F3.8 Series

• F3.8 CM2350 F120B
• F3.8 CM2350 F128C
• F3.8 CM2620 F137B
• F3.8 F102

F4.5 Series

• F4.5 CM2620 F139B
• F4.5 CM2620 F141C

ISB Series

• ISB CM2150
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB4.5 CM2350 B104
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

ISBE Series

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

ISD Series

• ISD4.5 CM2220 D108

The Ring Dowel part 3954616 is engineered to ensure compatibility across these diverse engine models, providing a reliable and essential function in the engine’s operation.

Role of Part 3954616 Ring Dowel in Engine Systems

The 3954616 Ring Dowel is an essential component in ensuring the precise alignment and secure fitting of various engine parts. In the context of the Gear Housing, the Ring Dowel facilitates the accurate positioning of the housing relative to other components, which is vital for the smooth operation of the gear system.

When integrated into the Housing, the Ring Dowel ensures that all subsequent components are correctly aligned, reducing the risk of misalignment that could lead to operational inefficiencies or mechanical failures.

In the Rear Gear system, the precise fitting provided by the Ring Dowel is important for maintaining the integrity of the gear mesh, which directly influences the transmission of power through the engine.

Within a Kit, the inclusion of the Ring Dowel ensures that during assembly, each component is correctly aligned from the outset, simplifying the installation process and enhancing the overall reliability of the engine system.

For the Repto system, the Ring Dowel plays a role in ensuring that replacement parts are fitted with the same precision as the original components, maintaining the engine’s performance standards.

In the Long Block, the Ring Dowel contributes to the accurate alignment of the crankshaft and other rotating components, which is essential for balanced engine operation and longevity.

Similarly, in a Short Block Kit, the Ring Dowel ensures that critical components such as the cylinder block and crankshaft are aligned correctly, which is fundamental for the engine’s structural integrity and functional efficiency.

Lastly, in the Rear Gear Housing, the Ring Dowel ensures that the housing is securely and accurately fitted, which is important for the durability and performance of the rear gear system.

Conclusion

The Cummins 3954616 Ring Dowel is a critical component in the assembly and operation of heavy-duty truck engines. Its role in ensuring precise alignment and secure fitting of engine parts contributes to the overall performance, reliability, and longevity of the engine system. Regular maintenance and proper installation are key to maximizing the benefits of this component.