5291988
Compression Piston Ring
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$3.79 $4.51

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 5291988 Compression Piston Ring is a component designed for use in heavy-duty truck engines. Its purpose is to enhance the efficiency and performance of the engine by ensuring proper compression and sealing within the combustion chamber. This part is significant in maintaining the optimal operation of the engine, contributing to its longevity and reliability.

Basic Concepts of Compression Piston Rings

Compression piston rings are components found in internal combustion engines. Their general function is to create a seal between the piston and the cylinder wall, which is vital for maintaining compression within the combustion chamber. This seal ensures that the air-fuel mixture is compressed effectively before ignition, which contributes to the engine’s efficiency and performance. By preventing the escape of combustion gases, compression piston rings help in maximizing the power output and fuel efficiency of the engine 1.

Purpose and Function of the 5291988 Compression Piston Ring

The 5291988 Compression Piston Ring plays a specific role in the operation of a truck engine. It is designed to provide a reliable seal that maintains compression within the combustion chamber. This seal is crucial for efficient combustion, as it ensures that the air-fuel mixture is compressed to the necessary levels before ignition. Additionally, the ring helps in reducing oil consumption by preventing oil from entering the combustion chamber, thereby contributing to overall engine performance 2.

Key Features

The 5291988 Compression Piston Ring boasts several unique features that enhance its performance and durability. It is constructed from high-quality materials that are resistant to wear and corrosion, ensuring longevity in demanding engine environments. The design of the ring includes advanced technological features that improve its sealing capabilities and overall efficiency. These features contribute to the ring’s ability to withstand high pressures and temperatures, making it suitable for heavy-duty applications 3.

Benefits of Using the 5291988 Compression Piston Ring

Utilizing the 5291988 Compression Piston Ring offers several advantages. It contributes to improved engine efficiency by ensuring effective compression and sealing within the combustion chamber. This results in better fuel economy and reduced emissions. Additionally, the ring helps in minimizing oil consumption, which can lead to cost savings and reduced maintenance requirements. Its durable construction ensures long-term performance, making it a reliable choice for heavy-duty truck engines 4.

Installation and Compatibility

Proper installation of the 5291988 Compression Piston Ring is vital for ensuring optimal performance. It is important to follow manufacturer guidelines to achieve the best results. Specific requirements may include proper sizing, alignment, and torque specifications to ensure the ring functions correctly within the engine. Compatibility with various engine models should be verified to ensure the ring is suitable for the intended application.

Maintenance and Troubleshooting

To ensure the longevity and performance of the 5291988 Compression Piston Ring, regular maintenance is recommended. This may include periodic inspections for wear and damage, as well as ensuring that the ring is properly lubricated. Common issues that may arise include oil leaks or reduced compression, which can be addressed by inspecting the ring for proper seating and condition. Troubleshooting tips may involve checking for proper installation and ensuring that the engine operates within specified parameters.

Performance Impact

The 5291988 Compression Piston Ring has a noticeable impact on engine performance. By maintaining effective compression and sealing within the combustion chamber, it contributes to improved fuel efficiency and power output. Additionally, the ring plays a role in reducing emissions by ensuring complete combustion of the air-fuel mixture. Its durable construction and advanced features make it a valuable component in enhancing the overall performance of heavy-duty truck engines.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions. With a history spanning over a century, Cummins has established a strong reputation in the heavy-duty truck industry for producing reliable and high-performance engine components. The company’s product range includes engines, filtration systems, and other power-related technologies, all designed to meet the demanding requirements of various applications. Cummins is known for its commitment to innovation, quality, and customer satisfaction, making it a trusted name in the industry.

Compression Piston Ring 5291988 Compatibility with Cummins Engines

The Compression Piston Ring 5291988, manufactured by Cummins, is designed to fit a variety of Cummins engines, ensuring optimal performance and longevity. Here are the engines with which this part is compatible:

4B3.9 and 6B5.9 Engines

The Compression Piston Ring 5291988 is compatible with the 4B3.9 and 6B5.9 engines. These engines are known for their robust design and efficiency, often used in heavy-duty applications. The ring’s fitment ensures that the engine maintains its compression integrity, contributing to better fuel efficiency and power output.

B5.6 CM2670 B152B, ISB5.9 CM2880 B110, and QSB5.9 CM2880 B115 Engines

The Compression Piston Ring 5291988 also fits the B5.6 CM2670 B152B, ISB5.9 CM2880 B110, and QSB5.9 CM2880 B115 engines. These engines are part of Cummins’ advanced lineup, offering superior performance and reliability. The ring’s design is tailored to meet the specific needs of these engines, ensuring a perfect seal and reducing wear and tear.

By using the Compression Piston Ring 5291988, engine owners can expect enhanced performance and durability across these engine models.

Role of Part 5291988 Compression Piston Ring in Engine Systems

The part 5291988 Compression Piston Ring is an integral component within the engine system, specifically designed to enhance the performance and efficiency of the engine. This ring fits snugly within the grooves of the engine piston, forming a seal against the cylinder wall. Its primary function is to maintain compression within the combustion chamber, ensuring that the air-fuel mixture is effectively compressed before ignition.

When the engine is in operation, the connecting rod and piston assembly moves up and down within the cylinder. The Compression Piston Ring, part 5291988, plays a significant role here by preventing the compressed air-fuel mixture from escaping past the piston. This ensures that the combustion process is efficient, leading to better engine performance and fuel economy.

In conjunction with the piston ring kit, the Compression Piston Ring contributes to the overall sealing efficiency of the piston. This kit typically includes multiple rings, each serving a specific purpose, such as oil control and gas sealing. The Compression Piston Ring, specifically, is responsible for gas sealing, which is essential for maintaining the pressure required for efficient combustion.

The efficiency of the Compression Piston Ring also impacts other components such as the camshaft and injector. A well-sealed combustion chamber allows the camshaft to operate smoothly, as the pressure variations are minimized. This, in turn, ensures that the injector delivers the precise amount of fuel required for optimal combustion, further enhancing engine performance.

In summary, the part 5291988 Compression Piston Ring is a key element in the engine system, working in harmony with the engine piston, piston ring kit, camshaft, and injector to ensure efficient and reliable engine operation.

Conclusion

The Cummins 5291988 Compression Piston Ring is a critical component in heavy-duty truck engines, designed to enhance engine efficiency and performance. Its role in maintaining compression within the combustion chamber ensures optimal combustion, leading to improved fuel economy, reduced emissions, and enhanced power output. The ring’s durable construction and advanced features make it a reliable choice for demanding engine environments. Proper installation, regular maintenance, and compatibility with specific engine models are essential for maximizing the benefits of this part. Cummins’ reputation for innovation and quality further underscores the value of the 5291988 Compression Piston Ring in ensuring the longevity and reliability of heavy-duty truck engines.


  1. Isermann, R. (2017). Combustion Engine Diagnosis. Springer Vieweg.

  2. Trzesniowski, M. (2023). The Complete Vehicle. Springer Nature.

  3. Klyde, M., & VanGelder, K. (2010). Advanced Automotive Electricity and Electronics. Jones Bartlett Learning.

  4. Fehan, D. R. (2013). Design of Racing and High-Performance Engines 2004-2013. SAE International.

SPECIFICATIONS

Package Dimensions
13.0 x 13.0 x 3.0 in
Weight
0.08 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.