3928624
O Ring Seal
Cummins®

Introduction

The Cummins 3928624 O Ring Seal is a vital component designed for commercial trucks, ensuring the integrity of fluid systems by preventing leaks and maintaining system pressures. This part is essential for the efficient operation of various truck systems, including fuel, hydraulic, and engine systems.

Basic Concepts of O Ring Seals

An O Ring Seal is a toroidal piece of elastomeric material designed to create a seal between two or more parts. Common materials include nitrile rubber, silicone, and fluorocarbons, each offering unique properties such as temperature resistance and chemical compatibility ¹. The O Ring functions by deforming slightly when compressed, filling irregularities and creating a tight seal.

Role of the 3928624 O Ring Seal in Truck Operation

This Cummins part ensures the integrity of seals in various systems, commonly associated with fuel systems to prevent leaks and ensure efficient fuel delivery. It may also be used in hydraulic systems to maintain operational pressures ².

Key Features

The Cummins 3928624 O Ring Seal is made from high-quality elastomeric materials, offering excellent resistance to operating conditions in commercial trucks. Its design ensures a snug fit, providing a reliable seal. Unique characteristics may include specific durometer ratings for optimal flexibility and compression set resistance.

Benefits

This part offers improved sealing efficiency, preventing leaks and maintaining system pressures. Its durability ensures a long service life, reducing the need for frequent replacements. Additionally, its resistance to various operating conditions enhances its reliability in demanding environments.

Troubleshooting and Maintenance

Common issues with O Ring Seals include leaks due to wear, damage, or improper installation. Troubleshooting involves inspecting the seal for wear or damage, ensuring correct seating, and checking mating surfaces for irregularities. Maintenance practices include regular inspection, proper installation techniques, and timely replacement to prevent leaks and maintain system efficiency.

Cummins Engine Part 3928624 O Ring Seal Compatibility

This seal is compatible with various Cummins engine models, including the 15N, 4B3.9, 6B5.9, 6C8.3, B4.5, B5.6, B5.9, B6.7, C GAS PLUS, D4.0, F3.8, F4.5, G8.3, GTA8.3, and ISB (Chrysler) series. It ensures a secure seal to prevent leaks and maintain system integrity across these models.

Role of Part 3928624 O Ring Seal in Engine Systems

This part is essential in various engine systems, including:

• Cabin Heater Plumbing: Ensures coolant flows without leaks.
• Camshaft and Gear: Maintains proper lubrication and prevents oil leaks.
• Connecting Rod and Piston: Secures oil passages to reduce friction and wear.
• Dipstick: Ensures accurate oil level measurement.
• Electronic Control Module Wiring Harness: Protects electrical connections from moisture and contaminants.
• Exhaust Outlet Accessories and Connection: Seals joints to prevent exhaust gas escape.
• Fuel Supply Plumbing: Ensures fuel lines remain sealed.
• Hardware Kit: Seals various fasteners and fittings.
• Lower Engine Gasket Kit: Seals critical areas around the lower part of the engine.
• Mounting Kit: Ensures engine mounts and related components are securely sealed.
• O Ring Plug: Provides an additional layer of sealing.
• Oil Fill Arrangement and Connection: Ensures a leak-free oil fill process.
• Oil Filler Tube: Prevents oil from leaking out during filling.
• Oil Transfer Connection: Ensures oil is transferred without leaks.
• Overhaul Kit: Re-seals various parts of the engine during a rebuild.
• Tube Brace: Secures and seals tubes.
• Turbocharger Gasket Kit and Turbocharger Kit: Seals all connections within the turbocharger system.
• Turbocharger Oil Drain Connection and Tube: Ensures proper oil drainage without leaks.
• Turbocharger Oil Plumbing: Ensures oil lines remain sealed.
• Turbocharger Plumbing: Ensures all fluid passages are securely sealed.

Conclusion

The Cummins 3928624 O Ring Seal is a critical component for the efficient operation of commercial trucks. Its high-quality design and material properties ensure reliable sealing in various engine systems, preventing leaks and maintaining system integrity. Regular maintenance and proper installation are essential to maximize the benefits of this part.