5274742
Oil Piston Ring
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$24.95 $29.69

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 5274742 Oil Piston Ring is a component designed for use in heavy-duty truck engines. Its purpose is to manage oil consumption within the engine, ensuring optimal performance and longevity. This ring is part of a broader system that maintains the efficiency and reliability of truck engines under demanding conditions.

Basic Concepts of Oil Piston Rings

Oil piston rings are components found in internal combustion engines. They are positioned within the piston grooves and play a role in controlling the amount of oil that reaches the cylinder walls. By regulating oil flow, these rings help to lubricate the cylinder walls, reduce friction, and prevent excessive oil consumption. This contributes to engine performance and extends the engine’s operational life 1.

Purpose of the Cummins 5274742 Oil Piston Ring

The Cummins 5274742 Oil Piston Ring is designed to control oil consumption in truck engines. It operates by scraping excess oil from the cylinder walls as the piston moves, returning it to the crankcase. This process helps maintain the correct oil film thickness on the cylinder walls, which is vital for reducing wear and ensuring efficient engine operation 2.

Key Features

The Cummins 5274742 Oil Piston Ring is distinguished by several specific features. These include its material composition, which is engineered to withstand high temperatures and pressures, and its precise design elements that ensure a proper fit within the piston grooves. The manufacturing processes employed are rigorous, ensuring consistency and reliability in performance 3.

Benefits of Using Cummins 5274742 Oil Piston Ring

Using the Cummins 5274742 Oil Piston Ring offers several advantages. It contributes to improved engine performance by ensuring optimal oil management. This results in reduced oil consumption, which can lead to cost savings and less frequent oil changes. Additionally, the ring’s durable construction enhances the engine’s longevity, providing reliable operation under heavy-duty conditions 4.

Installation and Maintenance

Proper installation of the Cummins 5274742 Oil Piston Ring is vital for its effective function. It should be installed according to the manufacturer’s guidelines to ensure it fits securely within the piston grooves. Regular maintenance, including inspections for wear and proper lubrication, is recommended to maximize the ring’s lifespan and performance. Following these practices helps maintain engine efficiency and reliability.

Troubleshooting Common Issues

Common problems associated with oil piston rings can include excessive oil consumption, increased engine wear, and reduced performance. Diagnostic methods for detecting issues may involve oil analysis, engine performance monitoring, and visual inspections during maintenance. Recommended solutions or repairs might include ring replacement, cylinder honing, or addressing other related engine components to restore optimal function.

The Role of Oil Piston Rings in Engine Efficiency

Oil piston rings contribute to overall engine efficiency by ensuring proper lubrication of the cylinder walls. This reduces friction and wear, which can improve combustion processes and fuel economy. By maintaining the correct oil film thickness, these rings help engines operate more smoothly and efficiently, contributing to better overall performance.

Cummins: A Brief Overview

Cummins Inc. is a well-established company in the automotive and heavy-duty truck industry. With a history of innovation and quality, Cummins offers a wide range of products designed to meet the demands of various applications. The company’s reputation for reliability and performance makes its components, like the 5274742 Oil Piston Ring, a preferred choice for maintaining and enhancing engine efficiency in heavy-duty trucks.

Cummins Oil Piston Ring 5274742 Compatibility

The Cummins Oil Piston Ring part number 5274742 is designed to fit seamlessly within a variety of Cummins engine models. This particular part is essential for maintaining optimal engine performance by controlling oil consumption and preventing oil from entering the combustion chamber.

ISL9 CM2150 SN, L9 CM2670 L128B Engines

The Oil Piston Ring 5274742 is compatible with the ISL9 CM2150 SN and L9 CM2670 L128B engines. These engines are known for their robust design and reliability, often used in heavy-duty applications. The ring ensures that the piston operates smoothly, reducing wear and tear and extending the engine’s lifespan.

Grouping of Engines

For the ISL9 CM2150 SN and L9 CM2670 L128B engines, the Oil Piston Ring 5274742 is a critical component that fits into the piston assembly. This part is engineered to withstand the high pressures and temperatures within the engine, ensuring that it performs reliably under demanding conditions.

The compatibility of the Oil Piston Ring 5274742 with these engines underscores Cummins’ commitment to providing high-quality parts that enhance engine performance and longevity.

Understanding the Role of Part 5274742 Oil Piston Ring in Engine Systems

The part 5274742 oil piston ring is an essential component within the engine piston kit, contributing significantly to the overall performance and efficiency of the engine. This ring is designed to work in conjunction with other key components to ensure optimal engine operation.

Integration with the Piston

The oil piston ring is positioned within the grooves of the piston. Its primary function is to control the oil film between the piston and the cylinder wall. This helps in reducing friction and wear, thereby enhancing the longevity and performance of the piston.

Interaction with the Cylinder Wall

As the piston moves up and down within the cylinder, the oil piston ring scrapes off excess oil from the cylinder walls. This action is vital for maintaining the correct oil film thickness, which is necessary for efficient lubrication and cooling of the piston and cylinder assembly.

Contribution to the Overhaul Kit

When included in an overhaul kit, the oil piston ring plays a part in restoring the engine to its peak performance. By ensuring proper oil control, it aids in the reduction of oil consumption and smoke emissions, which are common issues in engines that have undergone significant wear.

Relationship with the Camshaft

Although the camshaft operates independently of the piston rings, the efficient operation of the oil piston ring indirectly supports the camshaft’s performance. A well-lubricated and cool-running engine ensures that all components, including the camshaft, operate within their designed parameters, leading to smoother engine operation and reduced mechanical stress.

Impact on Engine Performance

The effectiveness of the oil piston ring directly influences engine performance. By managing oil film thickness, it contributes to lower friction losses, which translates to improved fuel efficiency and power output. Additionally, proper oil control helps in maintaining consistent engine temperatures, which is essential for the durability of all engine components.

Role in Parts and Performance

In the context of engine parts, the oil piston ring is a small yet significant component that affects the overall performance of the engine. Its proper function ensures that other parts, such as the piston ring kit and engine piston kit, operate efficiently, leading to a more reliable and high-performing engine.

Conclusion

The Cummins 5274742 Oil Piston Ring plays a crucial role in managing oil consumption within heavy-duty truck engines, ensuring optimal performance and longevity. Its design and features contribute to improved engine efficiency, reduced oil consumption, and enhanced durability. Proper installation and maintenance are essential for maximizing the benefits of this Cummins part. Understanding its role within the engine system highlights the importance of this component in achieving reliable and efficient engine operation.


  1. Robinson, A., & Livesey, A. (2006). The Repair of Vehicle Bodies Fifth Edition. Elsevier.

  2. Dempsey, P. (2008). Troubleshooting and Repairing Diesel Engines. McGraw-Hill.

  3. Limpert, R. (2011). Brake Design and Safety, Third Edition. SAE International.

  4. Sully, F. K. (1998). Motor Vehicle Mechanics Textbook, Fifth Edition. Heinemann Professional Publishing.

SPECIFICATIONS

Notes
SOLD IN HIGHER LEVEL KIT PN 5405893.
Package Dimensions
4.625 x 4.625 x 0.125 in
Weight
0.05 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.