3089240
O Ring Seal
Cummins®

The Cummins 3089240 O Ring Seal is a component designed for use in commercial trucks. Its primary function is to provide a reliable seal in various applications within the truck’s systems. This seal is integral to maintaining the integrity of fluid systems, ensuring that fluids are contained within their designated pathways without leakage ¹.

Basic Concepts of O Ring Seals

An O Ring Seal is a type of gasket made from a doughnut-shaped ring of elastomeric material. Its construction involves a circular cross-section that is designed to be seated in a groove and compressed during assembly between two or more mating surfaces. Common materials used in the production of O Ring Seals include nitrile rubber, silicone, and fluorocarbon. These materials are chosen for their ability to withstand a range of temperatures, pressures, and chemical environments. The O Ring Seal functions by creating a seal through a combination of compression and the elastomer’s ability to conform to the surfaces it contacts, thereby preventing the passage of fluids or gases ².

Role of the 3089240 O Ring Seal in Truck Operation

The 3089240 O Ring Seal plays a specific role in the operation of a truck by ensuring the integrity of seals in various systems or components. It is commonly associated with fluid systems where maintaining a seal is crucial for the system’s operation, such as in hydraulic systems, fuel systems, and cooling systems. By providing a reliable seal, the 3089240 O Ring Seal helps in maintaining system efficiency and preventing fluid leaks that could lead to system failure or inefficiency ³.

Key Features

The Cummins 3089240 O Ring Seal is characterized by its design and material properties. It is crafted from materials that offer excellent resistance to the operating conditions found in commercial trucks, including exposure to various fluids, temperatures, and pressures. Its design ensures a snug fit in the designated grooves, allowing for effective compression and sealing. Unique characteristics of this O Ring Seal may include specific durometer ratings for optimal elasticity and compression set resistance, ensuring long-term performance and reliability.

Benefits

The use of the 3089240 O Ring Seal offers several benefits. It provides improved sealing efficiency, ensuring that fluids remain within their intended pathways. Its durability and resistance to a wide range of operating conditions contribute to the longevity of the seal, reducing the need for frequent replacements. Additionally, its ability to withstand various chemical environments and temperatures makes it a versatile component for use in commercial trucks.

Troubleshooting and Maintenance

Common issues associated with O Ring Seals include seal failure due to wear, exposure to incompatible fluids, or physical damage. Troubleshooting seal failures involves inspecting the seal for signs of wear, checking for proper installation, and ensuring compatibility with the system’s fluids and operating conditions. Maintenance practices to ensure the longevity and reliable performance of O Ring Seals include regular inspection for signs of wear or damage, proper installation techniques to avoid damage, and replacement according to the manufacturer’s recommendations or as part of routine maintenance schedules.

Cummins O Ring Seal 3089240 Compatibility

The Cummins O Ring Seal part number 3089240 is designed to fit a variety of Cummins engines, ensuring a reliable seal in various applications. Below is a detailed breakdown of the engines this seal is compatible with, grouped where applicable:

6C8.3 Series

• 6C8.3
• 6C8.3 G

B4.5 Series

• B4.5 RGT

B5.6 Series

• B5.6 CM2670 B152B

B6.7 Series

• B6.7 CM2670 B153B
• B6.7 CM2670 B164C
• B6.7 G CMOH6.0 B125

C8.3 Series

• C8.3 G

F2.8 Series

• F2.8 CM2620 F135B

F3.8 Series

• F3.8 F102

F4.5 Series

• F4.5 CM2620 F141C

G8.3 Series

• G8.3
• G8.3 CM558
• GTA8.3 CM558

ISB Series

• ISB (Chrysler)
• ISB CM2150
• ISB CM550
• ISB CM850
• ISB/ISD4.5 CM2150 B119
• ISB/ISD6.7 CM2150 SN
• ISB5.9 CM2880 B110
• ISB5.9 CM2880 B140
• ISB5.9 CM2880 B149

C GAS PLUS Series

• C GAS PLUS CM556

15N Series

• 15N CM2380 M104B

This seal is engineered to provide a tight and effective seal in various engine applications, ensuring optimal performance and reliability.

Role of Part 3089240 O Ring Seal in Engine Systems

The 3089240 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 contained effectively, thereby enhancing the performance and longevity of the engine.

Auxiliary Cooling System

In the auxiliary cooling system, the O Ring Seal is used to prevent coolant leaks at connection points. This ensures that the coolant circulates efficiently, maintaining optimal engine temperature and preventing overheating.

Camshaft Gear and Idler Gear

For the camshaft gear and idler gear, the O Ring Seal is employed to seal the lubrication points. This prevents oil leakage, ensuring that the gears are properly lubricated, reducing wear and tear, and maintaining smooth operation.

Compressor Coolant Arrangement

Within the compressor coolant arrangement, the O Ring Seal plays a key role in sealing the connections between the compressor and the coolant lines. This ensures that the coolant effectively absorbs heat from the compressor, enhancing its efficiency and reliability.

Connecting Rod and Piston

In the connecting rod and piston assembly, the O Ring Seal is used to seal the oil passages. This ensures that the piston receives adequate lubrication, reducing friction and wear, and contributing to the overall durability of the engine.

Cylinder Assembly Block and Cylinder Block

For the cylinder assembly block and cylinder block, the O Ring Seal is crucial in sealing the coolant passages. This maintains consistent cooling across the cylinders, preventing hotspots and ensuring uniform engine performance.

Fuel Block Connection, Fuel Drain Tube, and Fuel Filter

In the fuel system, the O Ring Seal is utilized at the fuel block connection, fuel drain tube, and fuel filter to prevent fuel leaks. This ensures that the fuel system operates efficiently, delivering the correct fuel mixture to the engine.

Fuel Filter Head and Fuel Filter Location

At the fuel filter head and fuel filter location, the O Ring Seal ensures that the fuel filter is securely sealed, preventing any bypass of unfiltered fuel. This maintains the cleanliness of the fuel, protecting the engine from contaminants.

Full Engine Gasket Set

Within the full engine gasket set, the O Ring Seal is used to complement traditional gaskets, providing an additional layer of sealing at critical points. This enhances the overall sealing effectiveness of the engine, preventing fluid and gas leaks.

Heat Exchanger and Hose Kit

In the heat exchanger and hose kit, the O Ring Seal is employed to seal the connections, ensuring that the heat transfer fluid circulates without leaks. This maintains the efficiency of the heat exchanger, contributing to the engine’s thermal management.

Oil Assembly Pan and Oil Cooler Water Plumbing

For the oil assembly pan and oil cooler water plumbing, the O Ring Seal prevents oil and coolant leaks. This ensures that the oil remains clean and the cooling system operates efficiently, protecting the engine from damage.

Oil Quality Sensor and Prechamber-Lubricating Plumbing

The O Ring Seal is used in the oil quality sensor and prechamber-lubricating plumbing to ensure accurate oil quality readings and effective lubrication. This maintains the engine’s performance and protects it from damage due to poor lubrication.

Pressure Regulator Valve and Pressure Relief Valve

In the pressure regulator valve and pressure relief valve, the O Ring Seal ensures that these components operate within their designed pressure ranges. This prevents system failures and maintains the engine’s safety and efficiency.

Rocker Lever Housing and Throttle Valve

Finally, in the rocker lever housing and throttle valve, the O Ring Seal is used to prevent oil and air leaks. This ensures that the valvetrain operates smoothly and the throttle valve responds accurately, contributing to the engine’s overall performance and drivability.

Conclusion

The Cummins 3089240 O Ring Seal is a critical component in the maintenance and operation of commercial trucks. Its role in ensuring the integrity of fluid systems across various engine applications cannot be overstated. By providing reliable seals, this part contributes to the efficiency, safety, and longevity of the engine systems it serves. Regular maintenance and proper installation are essential to maximize the benefits of this Cummins part, ensuring optimal performance and reliability in commercial truck operations.