3075658
O Ring Seal
Cummins®

The Cummins 3075658 O Ring Seal is a component used in commercial trucks. This article provides an overview of the O Ring Seal, its function, key features, benefits, and maintenance suggestions.

Basic Concepts of O Ring Seals

An O Ring Seal is a type of gasket with a circular cross-section and a doughnut shape. It is designed to create a seal between two or more parts. O Ring Seals work by deforming slightly when compressed, filling the gap between mating surfaces and preventing fluid or gas leakage ¹.

Purpose of the Cummins 3075658 O Ring Seal

The Cummins 3075658 O Ring Seal is utilized in various applications within commercial trucks to ensure the integrity of fluid systems. It plays a role in maintaining the seal in fuel systems, hydraulic systems, and other critical areas where fluid leakage could lead to operational issues ².

Key Features

• Made from durable materials to withstand high pressure and temperature.
• Designed for specific applications to ensure proper fit and function.
• Provides reliable sealing in dynamic and static applications.

Benefits

• Enhances the reliability of fluid systems by preventing leaks.
• Contributes to the efficient operation of truck components.
• Reduces the risk of contamination in fluid systems.

Troubleshooting and Maintenance

Regular inspection of the O Ring Seal is recommended to identify signs of wear or damage. Common issues include hardening, cracking, or deformation. Replacement should be performed according to the manufacturer’s guidelines to maintain system integrity ³.

Compatibility with Cummins Engines

The O Ring Seal 3075658, manufactured by Cummins, is designed to ensure the integrity of various engine systems. This seal is engineered to fit seamlessly within a range of Cummins engines, providing essential sealing capabilities that prevent leaks and maintain system pressures.

ISB Series

• ISB CM550
• ISB/ISD4.5 CM2150 B119
• ISBE CM2150
• ISL CM2150
• ISL G CM2180
• ISL9 CM2150 SN
• ISL9 CM2250

ISBE Series

• ISBE CM2150
• ISBE CM800
• ISBE4 CM850

ISC Series

• ISC CM2150
• ISC8.3 CM2250

ISM Series

• ISM CM570
• ISM CM570/870
• ISM CM876
• ISM11 CM876 SN

ISX Series

• ISX CM570
• ISX CM870
• ISX CM871
• ISX12 CM2350 X102
• ISX12/ISX11.9 CM2250
• ISX15 CM2250
• ISX15 CM2250 SN
• ISX15 CM2350 X101

Role of Part 3075658 O Ring Seal in Engine Systems

The 3075658 O Ring Seal is integral to the sealing mechanisms within various engine systems, ensuring the integrity and efficiency of fluid and gas transfers.

Cabin Heater Plumbing

In the Cabin Heater Plumbing, the O Ring Seal ensures that there are no leaks in the coolant pathways, maintaining consistent heater performance and preventing coolant loss.

Coolant Heater Starting Aid

For the Coolant Heater Starting Aid, the O Ring Seal is used at connection points to maintain a sealed environment, allowing the heater to effectively warm the engine coolant before start-up.

Crankcase Breather

Within the Crankcase Breather system, the O Ring Seal helps in sealing the breather passages, ensuring that any gases released from the crankcase are properly vented without allowing contaminants to enter.

Engine Coolant Plumbing

In Engine Coolant Plumbing, the O Ring Seal is vital at joints and connections to prevent coolant leaks, ensuring efficient heat transfer throughout the engine.

Engine Harness Kit

Although primarily electrical, the Engine Harness Kit may include fluid connections where the O Ring Seal is used to prevent any fluid ingress that could damage electrical components.

Engine Oil Primer Plumbing

The Engine Oil Primer Plumbing relies on the O Ring Seal to maintain pressure integrity within the oil system, ensuring that the primer effectively circulates oil before engine start.

Exhaust Gas Recirculation Mixer Ejector

In the Exhaust Gas Recirculation Mixer Ejector, the O Ring Seal is used to ensure that recirculated exhaust gases are properly mixed without leakage, enhancing emission control.

Exhaust Recirculation Water Plumbing

For the Exhaust Recirculation Water Plumbing, the O Ring Seal ensures that water used in the recirculation process does not leak, maintaining system efficiency.

Fuel Filter

The Fuel Filter connections utilize the O Ring Seal to prevent fuel leaks, ensuring a clean and consistent fuel supply to the engine.

Fuel Pump Kit

In the Fuel Pump Kit, the O Ring Seal is essential at connection points to maintain fuel pressure and prevent leaks within the fuel delivery system.

Fuel System Accessories

Various Fuel System Accessories incorporate the O Ring Seal to ensure all connections are leak-free, maintaining the integrity of the fuel system.

Head Quadrant Gasket Kit

The Head Quadrant Gasket Kit may include O Ring Seals at specific points to ensure a complete seal between the head and the quadrant, preventing fluid or gas escape.

Injector

At the Injector connections, the O Ring Seal ensures that fuel is delivered without leaks, maintaining precise fuel injection and engine performance.

Lower Engine Gasket Set

The Lower Engine Gasket Set may incorporate O Ring Seals at critical junctions to ensure that lower engine components remain sealed and function correctly.

Lubricating Oil Pump

In the Lubricating Oil Pump system, the O Ring Seal is used to prevent oil leaks, ensuring consistent lubrication throughout the engine.

Male Adapter Elbow and Male Branch Tee

Both the Male Adapter Elbow and Male Branch Tee use O Ring Seals to ensure that fluid or gas pathways remain sealed at these connection points.

Oil Cooler Water Plumbing

The Oil Cooler Water Plumbing relies on O Ring Seals to prevent leaks in the cooling water pathways, ensuring effective oil temperature regulation.

Raw Water Pump

In the Raw Water Pump system, O Ring Seals are used to maintain the integrity of the water pathways, preventing leaks and ensuring efficient cooling.

Service Kit

A comprehensive Service Kit may include O Ring Seals for various components to ensure all connections are properly sealed during maintenance.

Sight Gauge

The Sight Gauge connections may use O Ring Seals to prevent fluid leaks, allowing for accurate monitoring of fluid levels.

Thermostat Housing

In the Thermostat Housing, O Ring Seals are used to ensure that coolant pathways remain sealed, allowing the thermostat to regulate engine temperature effectively.

Turbocharger Coolant Plumbing

The Turbocharger Coolant Plumbing utilizes O Ring Seals to prevent coolant leaks, ensuring the turbocharger remains effectively cooled.

Turbocharger Kit

Within the Turbocharger Kit, O Ring Seals are used at various connection points to maintain the integrity of the cooling and lubrication systems.

Water Inlet Connection

Finally, the Water Inlet Connection uses O Ring Seals to ensure that the water entering the engine system does so without leaks, maintaining efficient cooling.

Conclusion

The O Ring Seal 3075658 is a versatile and essential component for a wide range of Cummins engines. Its application across various engine series underscores its importance in maintaining the efficiency and reliability of these engines ⁴.