5255315
Compression Limiter Insert
Cummins®

Introduction

The Compression Limiter Insert 5255315 is a component designed by Cummins for use in heavy-duty truck engines. Its purpose is to regulate compression levels within the engine, ensuring optimal performance and longevity. By managing compression, this insert contributes to the overall efficiency and reliability of the engine ⁴.

Function and Operation

The Compression Limiter Insert 5255315 operates by interacting with the engine’s piston and cylinder assembly. It is positioned within the piston assembly and works in conjunction with the piston rings to control the compression ratio. This regulation helps maintain consistent engine performance under varying load conditions. The insert’s design allows it to withstand high pressures and temperatures, ensuring it functions effectively throughout the engine’s operational life ².

Key Features

The Compression Limiter Insert 5255315 is constructed from high-quality materials that offer durability and resistance to wear. Its design includes precise tolerances to ensure a proper fit within the piston assembly. Additionally, the insert features a unique profile that enhances its ability to manage compression effectively. These characteristics contribute to its reliable performance in demanding engine environments ³.

Benefits

Incorporating the Compression Limiter Insert 5255315 into an engine assembly offers several advantages. It helps improve engine efficiency by maintaining optimal compression levels, which can lead to better fuel economy. The insert’s durable construction enhances the engine’s longevity, reducing the need for frequent replacements. Furthermore, by ensuring consistent engine performance, it can contribute to lower maintenance costs for fleet operators ⁴.

Installation Process

Installing the Compression Limiter Insert 5255315 requires careful attention to detail. The process involves disassembling the piston assembly to access the area where the insert will be placed. Using appropriate tools, the insert is then positioned within the piston, ensuring it is correctly aligned and seated. It is important to follow manufacturer guidelines to ensure a proper installation, which will contribute to the insert’s effective function and the engine’s overall performance ¹.

Maintenance and Troubleshooting

Regular maintenance of the Compression Limiter Insert 5255315 is crucial for its continued effective operation. This includes periodic inspections for signs of wear or damage. Common issues may include improper seating or damage to the insert’s surface, which can affect its performance. Troubleshooting these issues typically involves re-examining the installation process to ensure correct placement and condition. Addressing these problems promptly can help maintain engine efficiency and prevent more significant issues from arising ⁴.

Compatibility and Applications

The Compression Limiter Insert 5255315 is designed for use in specific Cummins engine models. Its application is particularly beneficial in heavy-duty truck engines where maintaining optimal compression is critical for performance and efficiency. The insert’s compatibility with these engines ensures it can effectively contribute to their operation under a wide range of conditions ¹.

Cummins 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 reputation for quality and innovation in the automotive industry. Its product range includes a variety of components for heavy-duty trucks, demonstrating a commitment to enhancing engine performance and reliability ¹.

Compression Limiter Insert Compatibility with Cummins Engines

The Compression Limiter Insert, part number 5255315, manufactured by Cummins, is designed to fit a variety of Cummins engines. Below is a detailed overview of the engines with which this part is compatible:

ISF2.8 Engines

• ISF2.8 CM2220 F117
• ISF2.8 CM2220 F129

The Compression Limiter Insert is compatible with both the ISF2.8 CM2220 F117 and ISF2.8 CM2220 F129 engines. These engines are part of the ISF2.8 series, which is known for its balance of power and efficiency.

QSF2.8 Engines

• QSF2.8 CM2880 F104
• QSF2.8 CM2880 F105
• QSF2.8 CM2880 F108
• QSF2.8 CM2880 F114

The Compression Limiter Insert is also compatible with the QSF2.8 CM2880 series engines, including the F104, F105, F108, and F114 variants. These engines are part of the QSF2.8 series, which is recognized for its robust performance and reliability.

R2.8 Engine

• R2.8 CM2220 R101B

Lastly, the Compression Limiter Insert fits the R2.8 CM2220 R101B engine. This engine is part of the R2.8 series, which is designed for applications requiring a high power output.

This part is integral for maintaining the integrity and performance of the engines by ensuring proper compression limits are achieved ¹.

Role of Part 5255315 Compression Limiter Insert in Engine Systems

The 5255315 Compression Limiter Insert is an integral component in the orchestration of various engine systems, working in conjunction with several key components to ensure optimal engine performance and reliability.

Interaction with Valve and Valve Cover

The Compression Limiter Insert operates in close association with the valve and valve cover. The valve cover, which encases the valvetrain components, provides a sealed environment that prevents oil leaks and contaminants from entering the engine. The 5255315 Insert, positioned within this sealed environment, interacts directly with the valve mechanism. It modulates the compression levels within the combustion chamber, thereby influencing the valve’s operation. This interaction ensures that the valve opens and closes at the precise moments, contributing to efficient fuel combustion and reduced engine wear ².

Contribution to Engine Cover Integrity

The engine cover, a protective shell that encases the engine’s internal components, plays a role in maintaining the engine’s structural integrity and protecting it from external elements. The 5255315 Insert, although not a part of the cover itself, supports the cover’s function by ensuring that the internal pressures are managed effectively. This management prevents undue stress on the cover, prolonging its lifespan and maintaining the engine’s overall structural soundness ³.

Overall Engine System Harmony

In summary, the 5255315 Compression Limiter Insert is a component that enhances the harmony within the engine system. By fine-tuning the compression levels, it allows the valve and valve cover to perform their roles more effectively. This, in turn, supports the engine cover in maintaining a secure and contaminant-free environment for the engine’s internal components. The result is a more efficient, reliable, and longer-lasting engine system ⁴.

Conclusion

The Compression Limiter Insert 5255315 by Cummins is a critical component for maintaining optimal engine performance and reliability in heavy-duty truck engines. Its role in regulating compression levels contributes to improved efficiency, durability, and reduced maintenance costs. Proper installation, regular maintenance, and understanding its compatibility with various Cummins engines are essential for maximizing the benefits of this Cummins part.