3913994
O Ring Seal
Cummins®

The Cummins 3913994 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

O Ring Seals are circular rings, typically made from elastomers, that create seals in mechanical systems. They operate by being compressed within a groove, forming a barrier that prevents the leakage of fluids or gases. Their versatility allows them to be used in a wide range of applications, from simple plumbing fixtures to complex automotive systems ¹.

Role of the 3913994 O Ring Seal in Truck Operation

The 3913994 O Ring Seal plays a specific role in the operation of trucks by ensuring the sealing of various systems or components. It is associated with critical systems where the prevention of leaks is necessary to maintain performance and safety. This includes fuel systems, hydraulic systems, and engine components where fluid integrity is crucial.

Key Features of the 3913994 O Ring Seal

The 3913994 O Ring Seal is characterized by its material composition, which is selected for durability and resistance to the operating conditions it will encounter. Its design specifications are tailored to fit precisely within the designated grooves, ensuring a reliable seal. Unique characteristics may include resistance to specific chemicals or operating temperatures, enhancing its performance in demanding environments ².

Benefits of Using the 3913994 O Ring Seal

Utilizing the 3913994 O Ring Seal offers several benefits, including improved sealing efficiency, which contributes to the overall performance of the truck. Its durability ensures long-term reliability, reducing the need for frequent replacements. Additionally, its resistance to various operating conditions helps maintain the integrity of the sealed systems, contributing to the truck’s operational efficiency.

Installation and Maintenance Guidelines

Proper installation of the 3913994 O Ring Seal is crucial for its effectiveness. Techniques include ensuring the groove is clean and free of debris before insertion, and avoiding damage to the O Ring during installation. Maintenance tips to ensure its longevity include regular inspections for signs of wear or damage, and replacement according to the manufacturer’s guidelines or as part of routine maintenance schedules.

Troubleshooting Common Issues

Common issues with O Ring Seals, such as leaks or failures, can often be traced back to installation errors, environmental factors, or natural wear and tear. Troubleshooting steps include inspecting the seal and groove for damage, ensuring proper installation techniques are used, and considering environmental factors that may affect the seal’s performance.

Manufacturer Information - Cummins

Cummins is a renowned manufacturer in the automotive and heavy-duty truck industry, known for its commitment to quality and innovation. With a rich history and a strong reputation, Cummins continues to lead in the development of reliable and efficient automotive components, including the 3913994 O Ring Seal. Their dedication to excellence ensures that their products meet the high standards required for heavy-duty applications ³.

Cummins Engine Part 3913994: O Ring Seal Compatibility

The O Ring Seal part number 3913994, manufactured by Cummins, is a critical component in ensuring the integrity and performance of various Cummins engine models. This seal is designed to fit snugly within the engine’s components, providing a reliable barrier against leaks and ensuring optimal operational efficiency.

Compatibility with Cummins Engines

4B3.9, 6B5.9, 6C8.3, B3.9 G, B4.5, B5.9 GAS PLUS CM556, C GAS PLUS CM556, C8.3 G, G5.9, G5.9 CM558, G8.3, G855

The O Ring Seal part 3913994 is compatible with a range of Cummins engines including the 4B3.9, 6B5.9, 6C8.3, B3.9 G, B4.5, B5.9 GAS PLUS CM556, C GAS PLUS CM556, C8.3 G, G5.9, G5.9 CM558, G8.3, and G855. This seal is engineered to fit precisely within these engines, providing a robust seal that prevents leaks and maintains system pressure.

GTA38 G CMEICS G116C, ISB CM850, K19, K38, K50

The seal also fits seamlessly into the GTA38 G CMEICS G116C, ISB CM850, K19, K38, and K50 engines. These engines benefit from the O Ring Seal’s ability to withstand high temperatures and pressures, ensuring longevity and reliability in demanding applications.

KTA19GC CM558, KTA38GC CM558, L8.9, L8.9 CM2670 L134C, L8.9 L121, L9.3 L105, L9.5 L117, N14 G

For the KTA19GC CM558, KTA38GC CM558, L8.9, L8.9 CM2670 L134C, L8.9 L121, L9.3 L105, L9.5 L117, and N14 G engines, the O Ring Seal part 3913994 is designed to provide a tight seal, preventing any fluid or gas leakage. This ensures that these engines operate efficiently and reliably, maintaining their performance over time.

Role of Part 3913994 O Ring Seal in Engine Systems

The 3913994 O Ring Seal is integral to maintaining the integrity and efficiency of various engine systems. Its application spans across multiple components, ensuring that each system operates within optimal parameters.

Fuel System Integration

In the Bosch Fuel Pump Kit, the O Ring Seal is employed to create a tight seal around the fuel pump, preventing any fuel leakage. This ensures that the fuel delivery system remains efficient and safe, maintaining consistent fuel pressure and flow.

Crankcase and Breather System

The O Ring Seal is utilized in the Crankcase and Breather systems to seal various connections and interfaces. In the crankcase, it ensures that the internal pressures are maintained, preventing oil leaks and contamination. In the breather system, it helps in managing the ventilation of crankcase gases, ensuring that the engine operates smoothly without excessive pressure build-up.

Coupling and Gear Systems

For components like the Coupling and Front Gear, the O Ring Seal plays a vital role in sealing the interfaces where these parts connect to the engine block or other components. This prevents lubricants from escaping and contaminants from entering, which is essential for the longevity and performance of these mechanical parts.

Cylinder Block and Gasket Sets

In the Cylinder Block and various Gasket Sets (such as the Lower Block Gasket Kit and Upper Engine Gasket Kit), the O Ring Seal is used to ensure that combustion gases remain contained within the cylinders. This is fundamental for maintaining engine efficiency and preventing performance issues.

Front Gear Cover and Housing

The Front Gear Cover and Housing components rely on the O Ring Seal to create a secure barrier against oil leaks. This is particularly important in high-rpm environments where even minor leaks can lead to significant performance degradation.

Overhaul and Short Block Kits

In Overhaul Kits and Short Block Kits (such as the VT903 Short Block Kit), the O Ring Seal is a standard component used to ensure that all new or refurbished parts are properly sealed. This is essential for the overall integrity of the engine rebuild process.

Engine Barring and Barring Drive

The Engine Barring and Barring Drive mechanisms use the O Ring Seal to ensure that any lubricants applied during the barring process are retained, and no contaminants enter the system. This is important for the smooth operation and protection of these mechanisms.

EBM-Device and PDC

In more advanced systems like the EBM-Device and PDC (Programmable Logic Controller), the O Ring Seal is used to maintain the integrity of fluid pathways and electrical connections, ensuring that these sophisticated components function correctly.

Rear Gear Housing

Finally, in the Rear Gear Housing, the O Ring Seal is critical for sealing the rear section of the engine, preventing oil leaks and ensuring that the gear housing operates efficiently.

Conclusion

Overall, the 3913994 O Ring Seal is a fundamental component across various engine systems, ensuring that each part functions within its designed parameters, contributing to the overall performance and reliability of the engine.