205171
Main Bearing
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$259.95 $309.34

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 205171 Main Bearing is a component designed for use in commercial trucks. It plays a role in the engine’s operation by supporting the crankshaft and facilitating smooth rotation. This bearing is integral to maintaining the efficiency and reliability of the engine, ensuring that the truck operates effectively under various conditions.

Basic Concepts of Main Bearings

Main bearings are components found in internal combustion engines. Their primary function is to support the crankshaft, allowing it to rotate with minimal friction. By reducing friction, main bearings contribute to the engine’s overall performance and longevity. They are typically made from materials that can withstand high loads and temperatures, ensuring durability and consistent performance over time 1.

Role of the 205171 Main Bearing in Truck Operation

This Cummins part specifically supports the crankshaft in commercial truck engines. It enables the crankshaft to rotate smoothly, which is crucial for the engine’s operation. By minimizing friction between the crankshaft and the engine block, this bearing helps to maintain engine efficiency and reduce wear on the crankshaft. Its design and material composition are tailored to handle the high loads and stresses encountered in truck engines 2.

Key Features of the 205171 Main Bearing

205171 is characterized by several key features that enhance its performance. It is constructed from high-quality materials that offer excellent resistance to wear and corrosion. The bearing’s design includes precision-machined surfaces to ensure a perfect fit within the engine block. Additionally, it may incorporate advanced lubrication systems to further reduce friction and improve efficiency 3.

Benefits of Using the 205171 Main Bearing

Using this part offers several benefits. It contributes to improved engine efficiency by reducing friction, which in turn can lead to better fuel economy. The bearing’s durable construction helps to minimize wear and tear on the crankshaft, extending the engine’s lifespan. Furthermore, its reliable performance under various operating conditions ensures that the truck remains operational with reduced downtime.

Installation Considerations

When installing 205171, it is important to follow guidelines and best practices to ensure proper fit and function. This may include cleaning the engine block thoroughly to remove any debris or old bearing material. It is also recommended to use the appropriate tools and techniques to install the bearing, ensuring that it is seated correctly within the engine block. Following Cummins’ specific recommendations can help to avoid installation issues and ensure optimal performance.

Maintenance and Troubleshooting

Maintaining this Cummins part involves regular inspections and adherence to maintenance schedules. It is important to monitor the bearing for signs of wear or damage, such as unusual noises or vibrations, which may indicate a problem. Troubleshooting common issues may involve checking the lubrication system to ensure it is functioning correctly, as proper lubrication is crucial for the bearing’s performance. Addressing maintenance needs promptly can help to prevent more serious problems and extend the bearing’s lifespan.

Performance in Various Operating Conditions

205171 is designed to perform effectively under a range of operating conditions. It can handle high loads and stresses, making it suitable for use in commercial trucks that operate under demanding conditions. The bearing is also capable of withstanding extreme temperatures, ensuring reliable performance in both hot and cold environments. Its design allows it to maintain efficiency across varying speeds, contributing to the overall performance of the engine.

Compatibility With Cummins Engines

This part is compatible with a range of Cummins engine models. It is designed to fit specific applications within the Cummins engine lineup, ensuring optimal performance and reliability. When selecting a main bearing for a Cummins engine, it is important to consider the specific model and application to ensure compatibility and achieve the best results.

Cummins: A Brief 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 strong reputation in the commercial truck industry for producing reliable and high-performance engines. The company’s product range includes a variety of engines and components designed to meet the needs of different applications, from on-highway trucks to off-highway equipment. Cummins’ commitment to innovation and quality has made it a trusted name in the industry.

Conclusion

The Cummins 205171 Main Bearing is a critical component in the operation of commercial truck engines. Its role in supporting the crankshaft and reducing friction contributes to the engine’s efficiency, reliability, and longevity. Proper installation, maintenance, and understanding of its features and benefits are essential for ensuring optimal performance and compatibility with Cummins engines.


  1. Haoran Hu, Rudy Smaling, Simon Baseley, Heavy-Duty Wheeled Vehicles, SAE International, 2014.

  2. George Peters, Barbara J Peters, Automobile Vehicle Safety, CRC Press, 2002.

  3. Paul Richards and Jim Barker, Automotive Fuels Reference Book, SAE International, 2023.

SPECIFICATIONS

Comments
0.25 mm Oversize
Hazard Description
Non-Hazardous (NOI, ICE/Auto)
Package Dimensions
15.0 x 7.4 x 3.9 in
Weight
0.272 lbs
* 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.