4995654
O Ring Seal
Cummins®

The Cummins 4995654 O-Ring Seal is a component designed to ensure the integrity of seals within heavy-duty truck systems. Its role is significant in maintaining the operational efficiency and reliability of trucks, particularly in environments where durability and performance are paramount.

Basic Concepts of O-Ring Seals

An O-Ring Seal is a toroidal (ring-shaped) elastomer with a circular cross-section, used to prevent the leakage of fluids and gases in various mechanical systems. It functions by creating a seal between two or more parts, typically under compression. O-Ring Seals are widely utilized across industries due to their simplicity, effectiveness, and versatility in sealing applications ¹.

Purpose of the 4995654 O-Ring Seal in Truck Operation

This part plays a specific role in the operation of trucks by ensuring the sealing integrity of connections within the engine or other systems. Its location and function are critical to preventing leaks and maintaining system pressure, which is vital for the efficient operation of the truck.

Key Features of the 4995654 O-Ring Seal

The design and material characteristics of this Cummins part contribute to its effectiveness and durability. Crafted from high-quality elastomers, it is engineered to withstand a range of temperatures and pressures, ensuring reliable performance in demanding conditions ².

Benefits of Using the 4995654 O-Ring Seal

The advantages provided by the 4995654 O-Ring Seal include improved sealing performance, longevity, and resistance to various operating conditions. Its design allows for a tight seal, reducing the risk of leaks and enhancing the overall efficiency of the truck’s systems.

Installation and Maintenance

Proper installation of this part involves following best practices to ensure it is correctly positioned and compressed. Common pitfalls to avoid include over-lubrication and improper sizing, which can compromise the seal’s effectiveness. Regular maintenance, including inspection for wear and damage, is recommended to ensure longevity and optimal performance ³.

Troubleshooting Common Issues

Common problems associated with O-Ring Seals, such as leaks or failures, can often be traced back to installation errors or environmental factors. Troubleshooting steps may include checking the seal for proper seating, assessing the condition of the mating surfaces, and ensuring compatibility with the operating environment.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emission solutions. With a strong reputation in the heavy-duty truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction.

Cummins O-Ring Seal 4995654 Compatibility

The Cummins O-Ring Seal part number 4995654 is a critical component designed to ensure the integrity of various engine systems. This seal is engineered to fit seamlessly within a range of Cummins engines, providing a reliable barrier against leaks and maintaining system pressure. Below is a detailed description of its compatibility with specific engine models:

B5.6 CM2670 B152B and B6.7 CM2670 B153B

The O-Ring Seal 4995654 is compatible with the B5.6 CM2670 B152B and B6.7 CM2670 B153B engines. These engines are part of the Cummins B Series, known for their robust performance and reliability in various applications. The seal fits into critical areas where it helps maintain the integrity of the fuel and lubrication systems, ensuring optimal engine performance.

ISB (Chrysler) and ISC CM850

This O-Ring Seal is also suitable for the ISB (Chrysler) and ISC CM850 engines. The ISB engine is a high-performance diesel engine designed for heavy-duty applications, while the ISC CM850 is a smaller, yet equally reliable engine. The seal is used in various components, including the fuel injection system and other critical areas, to prevent leaks and maintain system efficiency.

ISG11 CM2880 G108 and ISG12 CM2880 G107

The O-Ring Seal 4995654 fits perfectly within the ISG11 CM2880 G108 and ISG12 CM2880 G107 engines. These engines are part of the Cummins ISG Series, known for their compact design and high power output. The seal is used in multiple locations, including the turbocharger and fuel system, to ensure that the engine operates at peak efficiency.

ISL CM2150 and ISL9 CM2150 SN

The ISL CM2150 and ISL9 CM2150 SN engines are also compatible with the O-Ring Seal 4995654. These engines are part of the Cummins ISL Series, which is widely used in various industries due to its durability and performance. The seal is essential in maintaining the integrity of the fuel and oil systems, ensuring that the engine runs smoothly and efficiently.

QSG12/X12 CM2350 G110, QSL8.9 CM2150 L141, QSL9 CM2250, and QSL9 CM2350 L102

The O-Ring Seal 4995654 is also designed to fit the QSG12/X12 CM2350 G110, QSL8.9 CM2150 L141, QSL9 CM2250, and QSL9 CM2350 L102 engines. These engines are part of the Cummins QSL and QSG Series, known for their versatility and reliability in various applications. The seal is used in multiple components, including the fuel injection system and other critical areas, to ensure that the engine operates efficiently and reliably.

By ensuring a proper fit and maintaining system integrity, the Cummins O-Ring Seal 4995654 plays a crucial role in the performance and longevity of these engines.

Role of Part 4995654 O-Ring Seal in Engine Systems

The 4995654 O-Ring Seal is integral to maintaining the integrity and efficiency of various engine systems. Its application spans across multiple components, ensuring that fluids and gases are properly contained and directed.

Compressor Coolant System

In the compressor coolant system, the O-Ring Seal is used to create a tight seal between the compressor and its coolant passages. This ensures that coolant flows efficiently to regulate the temperature of the compressor, enhancing its performance and longevity.

Air Compressor System

Within the air compressor system, the O-Ring Seal is employed at connection points such as the male connector and male union. This prevents air leaks, ensuring that the compressed air is delivered at the required pressure and volume for various engine functions.

Converter and Catalytic Device

In the converter and catalytic device arrangement, the O-Ring Seal plays a role in sealing the connections within the exhaust system. This helps maintain the efficiency of the catalytic converter by ensuring that exhaust gases pass through without leakage, which is essential for effective emissions control.

Aftertreatment System

The aftertreatment system relies on the O-Ring Seal to maintain the integrity of connections in components like the exhaust cooler water outlet tube and the filter. This ensures that coolant and other fluids used in the aftertreatment process are effectively contained and circulated.

Turbocharger System

In the turbocharger system, the O-Ring Seal is used in the turbocharger gasket kit and the turbocharger kit. It ensures that the turbocharger’s plumbing and coolant passages are sealed, preventing leaks that could compromise turbocharger performance and efficiency.

Upper Engine Gasket Kit

The upper engine gasket kit utilizes the O-Ring Seal to ensure that various engine components, such as the turbocharger and its associated plumbing, are properly sealed. This is vital for maintaining the engine’s overall performance and preventing fluid leaks.

Hose and Hardware Kits

Both the hose kit and hardware kit incorporate the O-Ring Seal to ensure that all connections are leak-proof. This is particularly important in systems where coolant, air, or other fluids are transported under pressure.

Exhaust Recirculation System

In the exhaust recirculation system, the O-Ring Seal is used to seal the connections in the plumbing, ensuring that recirculated exhaust gases are effectively managed and do not leak into other engine systems.

The 4995654 O-Ring Seal is a fundamental component in these systems, providing the necessary seals to ensure efficient operation and prevent fluid or gas leaks.

Conclusion

The Cummins 4995654 O-Ring Seal is a critical component in maintaining the integrity and efficiency of heavy-duty truck systems. Its role in preventing leaks and maintaining system pressure is vital for the reliable operation of trucks. Proper installation, regular maintenance, and understanding its compatibility with various Cummins engines are essential for ensuring optimal performance and longevity of the engine systems.