3086128
Crankshaft Spacer
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$409.95 $487.84

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 3086128 Crankshaft Spacer is a component designed for use in commercial truck engines. Its purpose is to provide the necessary spacing between the crankshaft and other engine components, ensuring proper alignment and operation. This spacer plays a role in maintaining the structural integrity and performance of the engine.

Basic Concepts of Crankshaft Spacers

A crankshaft spacer is a mechanical component that provides the required distance between the crankshaft and adjacent parts within an engine. It ensures that the crankshaft is correctly positioned relative to other components, which is vital for the smooth operation of the engine. The spacer interacts with the crankshaft, main bearings, and other engine parts to maintain alignment and prevent excessive wear 1.

Purpose of the 3086128 Crankshaft Spacer

The 3086128 Crankshaft Spacer is specifically designed to fit within Cummins engines, playing a role in the precise spacing needed for optimal engine performance. By maintaining the correct distance between the crankshaft and other components, this spacer helps to ensure that the engine operates efficiently and reliably. It contributes to the overall durability and performance of the engine by preventing misalignment and reducing wear on critical parts 2.

Key Features

The Cummins 3086128 Crankshaft Spacer is engineered with specific design and material characteristics to enhance its functionality. It is made from high-quality materials that provide durability and resistance to wear. The spacer is designed to fit precisely within the engine, ensuring that it performs its role effectively without causing additional stress on the crankshaft or other components.

Benefits of Using the 3086128 Crankshaft Spacer

Using the 3086128 Crankshaft Spacer offers several advantages. It helps to improve engine efficiency by ensuring that the crankshaft is properly aligned. This alignment reduces the likelihood of excessive wear on engine components, leading to enhanced durability. Additionally, the spacer contributes to the overall reliability of the engine by maintaining the necessary spacing between critical parts 3.

Installation Considerations

Proper installation of the 3086128 Crankshaft Spacer is important for ensuring that it performs its role effectively. It is recommended to follow manufacturer guidelines and use the appropriate tools for installation. Careful attention should be paid to ensuring that the spacer is correctly positioned and that all related components are properly aligned. This will help to prevent issues such as misalignment or excessive wear.

Troubleshooting Common Issues

Common problems associated with crankshaft spacers can include misalignment or wear. If issues arise, it is important to diagnose the problem accurately. This may involve checking the alignment of the crankshaft and other components, as well as inspecting the spacer for signs of wear or damage. Addressing these issues promptly can help to maintain the performance and reliability of the engine.

Maintenance Tips

Regular maintenance of the 3086128 Crankshaft Spacer is important for ensuring optimal performance and longevity. This includes inspecting the spacer for signs of wear or damage during routine engine maintenance. Additionally, ensuring that the spacer is correctly positioned and that all related components are properly aligned can help to prevent issues and maintain the efficiency of the engine.

Cummins: A Brief Overview

Cummins Inc. is a well-established manufacturer in the commercial truck industry, known for its range of high-quality engine components and systems. With a history of innovation and reliability, Cummins has built a reputation for producing durable and efficient engine parts. The company’s product range includes a variety of components designed to enhance the performance and reliability of commercial trucks.

Crankshaft Spacer 3086128 Compatibility with Cummins Engines

The Crankshaft Spacer part number 3086128, manufactured by Cummins, is designed to fit seamlessly with a range of Cummins engines. This part plays a crucial role in maintaining the alignment and stability of the crankshaft within the engine assembly.

QSK19 Series Engines

The QSK19 series engines, including the QSK19 CM2350 K105 and QSK19 CM2350 K114, are medium-speed diesel engines known for their robust performance and reliability. The Crankshaft Spacer 3086128 is specifically engineered to fit these engines, ensuring proper spacing and alignment of the crankshaft components. This is vital for maintaining engine balance and preventing wear and tear on critical parts.

QSK19 CM500 and QSK19 CM850 MCRS

The QSK19 CM500 and QSK19 CM850 MCRS engines are part of the same series and share many common components, including the Crankshaft Spacer 3086128. This part is designed to fit these engines with precision, ensuring that the crankshaft operates within the specified tolerances. The use of this spacer helps in maintaining the integrity of the engine’s internal mechanisms, contributing to its overall performance and longevity.

Compatibility Summary

The Crankshaft Spacer 3086128 is compatible with the following Cummins engines:

  • QSK19 CM2350 K105
  • QSK19 CM2350 K114
  • QSK19 CM500
  • QSK19 CM850 MCRS

This compatibility ensures that the spacer can be used across different models within the QSK19 series, providing a standardized solution for maintaining crankshaft alignment and stability.

Role of Part 3086128 Crankshaft Spacer in Engine Systems

The part 3086128 Crankshaft Spacer is an essential component in the arrangement of various engine systems, ensuring optimal performance and longevity of the engine.

In the context of the vibration damper system, the crankshaft spacer plays a significant role. It is positioned between the crankshaft and the vibration damper, providing the necessary spacing to allow the damper to function effectively. The damper is designed to absorb and reduce the vibrations generated by the engine, thereby enhancing the smoothness of operation and reducing wear on connected components. The crankshaft spacer ensures that the damper is correctly aligned and maintains the required distance from the crankshaft, which is vital for the damper’s performance.

Additionally, the crankshaft spacer contributes to the overall stability of the engine’s rotating assembly. By maintaining precise spacing, it helps in balancing the crankshaft and other rotating components, which is essential for minimizing vibrations and ensuring consistent engine performance.

In summary, the part 3086128 Crankshaft Spacer is integral to the proper functioning of the vibration damper and the overall stability of the engine’s rotating components. Its role in maintaining the correct spacing and alignment is key to the efficient operation of these systems.

Conclusion

The Cummins 3086128 Crankshaft Spacer is a critical component for maintaining the alignment and stability of the crankshaft within Cummins engines. Its proper installation and maintenance are essential for ensuring the efficient and reliable operation of the engine. By understanding the role and benefits of this part, users can better appreciate its importance in engine systems and take appropriate steps to ensure its optimal performance.


  1. Naunheimer, H., Bertsche, B., Ryborz, J., & Novak, W. (2011). Automotive Transmissions Fundamentals Selection Design and Application. Springer Vieweg.

  2. Bennett, S. (2012). Modern Diesel Technology Light Duty Diesels. Cengage Learning.

  3. Bell, J. A. (2014). Modern Diesel Technology Electricity Electronics. Delmar Cengage Learning.

SPECIFICATIONS

Hazardous Material
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
7.3 x 5.1 x 4.2 in
Weight
4.95 lb
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.