3627695
O Ring Seal
Cummins®

The Cummins 3627695 O Ring Seal is a critical component designed for commercial trucks, ensuring the integrity of various fluid systems within the vehicle ¹.

Basic Concepts of O Ring Seals

An O Ring Seal is a gasket made from a circular cross-section of elastomer, used to create a seal between parts by being compressed within a groove, preventing fluid or gas leakage ².

Role of the 3627695 O Ring Seal in Truck Operation

This Cummins part is utilized in various applications within commercial trucks, maintaining seals in fluid systems such as the engine, transmission, and hydraulic systems. It contributes to efficient operation and longevity by preventing leaks ³.

Key Features

The 3627695 O Ring Seal features durable elastomer construction, resistant to a range of temperatures and chemical exposures commonly encountered in truck operations. It is designed to fit precisely within specified grooves to ensure an effective seal.

Benefits

The use of this part offers several benefits, including enhanced system reliability, reduced maintenance costs due to fewer leaks, and improved overall performance of the truck’s fluid systems.

Troubleshooting and Maintenance

Regular inspection of O Ring Seals is recommended to identify any signs of wear or damage. If compromised, it should be replaced promptly to prevent system failure. Proper installation techniques should be followed to ensure the seal is effective.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. The company is known for its commitment to quality and innovation in the automotive and industrial sectors.

Compatibility with Cummins Engines

This O Ring Seal is designed to fit a variety of Cummins engines, ensuring the integrity of the engine’s sealing systems, preventing leaks, and maintaining optimal performance. Below is a detailed breakdown of the engines that this seal is compatible with, grouped by engine series for clarity.

ISB Series Engines

• ISB CM2150
• ISB CM550
• ISB4.5 CM2350 B104
• ISB5.9G CM2180
• ISB6.7 CM2250
• ISB6.7 CM2350 B101
• ISB6.7 G CM2180 B118

ISC Series Engines

• ISC CM2150
• ISC CM850
• ISC8.3 CM2250

ISG Series Engines

• ISG11 CM2880 G108
• ISG12 CM2880 G107
• ISG12 G CMOH6.0 G111

ISL Series Engines

• ISL CM2150
• ISL G CM2180
• ISL9 CM2150 SN

Other Cummins Engines

• 15N CM2380 M104B
• 6B5.9
• 6C8.3
• B6.7 CM2350 B135B
• B6.7 CM2670 B153B
• C GAS PLUS CM556
• C8.3 G
• GTA38 G CMEICS G116C
• GTA855 CM558 (CM2358) G101

Role of Part 3627695 O Ring Seal in Engine Systems

This part 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 within their designated pathways, thereby preventing leaks and maintaining system pressure.

Aftercooler Plumbing

In the aftercooler plumbing, the O Ring Seal is used at connection points to ensure a tight seal between the cooler and the plumbing lines. This prevents coolant leakage and maintains the efficiency of the aftercooling process.

Auxiliary Cooling System

Within the auxiliary cooling system, the O Ring Seal is employed at various joints and connections. It ensures that the coolant circulates effectively without any loss, which is essential for maintaining optimal engine temperature.

Camshaft and Cylinder Block

At the interface between the camshaft and the cylinder block, the O Ring Seal plays a role in sealing the oil passages. This ensures that lubrication is consistently delivered to the moving parts, reducing friction and wear.

Drain Location and Drain

In the drain location and drain components, the O Ring Seal is critical for preventing leaks during the draining process. It ensures that fluids are contained within the system until they are purposefully released through the designated drain points.

Fuel System Components

For components such as the fuel filter, fuel filter (top-level assembly) head, fuel manifold kit, and gear fuel pump, the O Ring Seal is used to maintain the integrity of the fuel lines and connections. This ensures that fuel is delivered efficiently to the engine without any leaks.

Engine Coolant Vent and Exhaust Recirculation Cooler Kit

In the engine coolant vent and exhaust recirculation cooler kit, the O Ring Seal helps in maintaining a sealed environment. This is important for efficient coolant circulation and proper functioning of the exhaust recirculation system.

Fan Drive Plumbing

The O Ring Seal in the fan drive plumbing ensures that there are no leaks in the coolant lines connected to the fan drive. This maintains the efficiency of the cooling system.

Injector Plumbing and Left Bank Oil Supply Connection

In the injector plumbing and left bank oil supply connection, the O Ring Seal ensures that there are no leaks in the high-pressure fuel lines and oil supply lines. This is vital for the precise delivery of fuel and oil to the engine components.

Oil Bypass Filter and Oil Pan Gasket Set

The O Ring Seal is used in the oil bypass filter and oil pan gasket set to ensure that oil is contained within the system. This prevents oil leaks and maintains the lubrication system’s efficiency.

Shutoff Valve and Solenoid Stator

In the shutoff valve and solenoid stator, the O Ring Seal ensures that there are no leaks in the fluid pathways. This is important for the proper operation of these components.

Turbocharger Mounting Kit and Turbocharger Supply Water Left Bank Hose

Finally, in the turbocharger mounting kit and turbocharger supply water left bank hose, the O Ring Seal ensures that there are no leaks in the water supply lines to the turbocharger. This maintains the efficiency of the turbocharger.

Conclusion

The Cummins 3627695 O Ring Seal is a vital component in maintaining the integrity and efficiency of various engine systems in commercial trucks. Its wide compatibility with Cummins engines and its role in preventing leaks across multiple components underscore its importance in ensuring optimal engine performance and longevity.