190876
O Ring Seal
Cummins®

The 190876 O Ring Seal, manufactured by Cummins, is a critical component in the maintenance and operation of commercial trucks. Cummins, a renowned name in the industry, produces this seal to ensure the efficient and reliable functioning of truck systems. This part is integral to maintaining the integrity of various systems within commercial trucks, contributing to their overall performance and longevity.

Basic Concepts of O Ring Seals

O Ring Seals are circular rings, typically made from elastomers, designed to create a seal between two or more mating surfaces. They function by deforming slightly when compressed, filling the gap between the surfaces and preventing the passage of fluids or gases. O Ring Seals are widely used in mechanical systems due to their simplicity, effectiveness, and versatility in various applications ¹.

Purpose of the 190876 O Ring Seal in Truck Operation

This Cummins part plays a specific role within the truck’s system by interfacing with various components to support critical systems. It is designed to create a reliable seal in areas where fluid or gas passage needs to be controlled, such as in hydraulic systems, fuel lines, or engine compartments. By ensuring these seals are intact, the O Ring contributes to the efficient operation of the truck, preventing leaks and maintaining system pressure ².

Key Features of the 190876 O Ring Seal

The 190876 O Ring Seal is characterized by its design and material composition, which enable it to perform effectively in demanding environments. Made from durable elastomers, it offers excellent resistance to wear, tear, and environmental factors. Its flexibility allows it to conform to irregular surfaces, ensuring a tight seal. Additionally, the material is chosen for its ability to withstand high temperatures and pressures, common in commercial truck operations ³.

Benefits of Using the 190876 O Ring Seal

Utilizing this part offers several advantages, including improved system efficiency, enhanced longevity, and increased reliability under harsh operating conditions. Its design and material properties contribute to a more secure seal, reducing the risk of leaks and system failures. This reliability is particularly beneficial in the demanding environments typical of commercial truck use, where consistent performance is crucial.

Installation and Replacement Guidelines

To install or replace the 190876 O Ring Seal, it is important to follow a systematic approach. Begin by ensuring the mating surfaces are clean and free of debris. Use appropriate tools to remove the old seal, if applicable, and carefully place the new O Ring into position. It is crucial to avoid damaging the O Ring during installation, as this could compromise its sealing ability. Safety precautions, such as wearing gloves and eye protection, should be observed throughout the process.

Troubleshooting Common Issues

Common issues with O Ring Seals, such as leaks or failures, can often be traced back to installation errors, material degradation, or environmental factors. To diagnose these problems, inspect the seal for signs of wear, damage, or improper seating. Addressing these issues may involve replacing the O Ring, ensuring correct installation, or selecting a more durable material for the seal.

Maintenance Tips

Regular maintenance of the 190876 O Ring Seal is key to ensuring its longevity and effectiveness. This includes periodic inspection for signs of wear or damage, and cleaning the seal and its mating surfaces to prevent contamination. Establishing routine inspection intervals and adhering to recommended cleaning procedures can help maintain the seal’s performance and extend its service life.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality, innovation, and reliability in the commercial truck industry. The company’s commitment to excellence is reflected in its wide range of products, designed to meet the demanding requirements of commercial applications.

Compatibility of O Ring Seal Part 190876 with Cummins Engines

The O Ring Seal part 190876, manufactured by Cummins, is designed to fit a variety of Cummins engines. This seal is integral for ensuring proper sealing and preventing leaks in various engine components. Below is a detailed breakdown of the engines that are compatible with this specific O Ring Seal:

Cummins B Series Engines

• 4B3.9
• 6B5.9

These engines, part of the B Series, are known for their robust performance and reliability. The O Ring Seal part 190876 is specifically engineered to fit within the sealing requirements of these engines.

Cummins C Series Engines

• 6C8.3

The 6C8.3 engine from the C Series benefits from the precision fit of the O Ring Seal part 190876, ensuring optimal sealing performance and longevity.

Cummins L Series Engines

• L10 MECHANICAL
• L8.9 L121
• L9.5 L117

The L Series engines, including the L10 MECHANICAL, L8.9 L121, and L9.5 L117, are designed for durability and efficiency. The O Ring Seal part 190876 is compatible with these engines, providing essential sealing for various applications.

Cummins M Series Engines

• M11 CELECT PLUS
• M11 MECHANICAL

Both the M11 CELECT PLUS and M11 MECHANICAL engines are equipped with the O Ring Seal part 190876, ensuring that these engines maintain their sealing integrity under various operating conditions.

Cummins N Series Engines

• N14 MECHANICAL

The N14 MECHANICAL engine is another beneficiary of the O Ring Seal part 190876, which is crucial for maintaining the engine’s sealing performance.

Cummins K Series Engines

• K19
• K38
• K50

The K Series engines, including the K19, K38, and K50, are designed for heavy-duty applications. The O Ring Seal part 190876 is compatible with these engines, providing reliable sealing in demanding environments.

Cummins V Series Engines

• V28
• V903

The V Series engines, such as the V28 and V903, also utilize the O Ring Seal part 190876 to ensure that their sealing requirements are met effectively.

Cummins NH/NT Series Engines

• NH/NT 855

The NH/NT 855 engine is another application for the O Ring Seal part 190876, ensuring that this engine maintains its sealing integrity.

Cummins B4.5 RGT and ISB CM850 Engines

• B4.5 RGT
• ISB CM850

These specialized engines also require the O Ring Seal part 190876 for their sealing needs, ensuring optimal performance and reliability.

Role of Part 190876 O Ring Seal in Engine Systems

The O Ring Seal, part number 190876, is an essential component in ensuring the integrity and efficiency of various engine systems. Its application spans across multiple components, each playing a distinct role in the overall functionality of the engine.

Fuel System Components

1. AFC-VS Fuel Pump/TMD: The O Ring Seal is utilized in the AFC-VS Fuel Pump/TMD to prevent fuel leaks and maintain pressure within the system. It ensures that the fuel pump operates efficiently by sealing the connections and preventing any fuel from escaping.

2. Fuel Base Pump and Fuel Injection Pump: In these pumps, the O Ring Seal is critical for sealing the pump housing and internal components. This seal prevents fuel leakage and ensures that the pump delivers fuel at the correct pressure and volume to the engine.

3. Fuel Pump AFC-VS and Fuel Pump and Drive: These components rely on the O Ring Seal to maintain a tight seal between the pump body and the drive mechanism. This ensures that fuel is delivered smoothly and without interruption.

4. Fuel Pump Calibration and Fuel Pump Option: During calibration and optional upgrades, the O Ring Seal is used to ensure that any modifications do not result in fuel leaks. It maintains the seal integrity during these processes.

Valve and Solenoid Components

1. Dual Power Valve and Solenoid and Wire Valve: The O Ring Seal is employed in these valves to ensure that there are no leaks in the fluid pathways. This is essential for maintaining the correct operation of the valve and solenoid systems.

2. Dump Valve Kit: In the dump valve kit, the O Ring Seal prevents the escape of pressurized fluids, ensuring that the valve functions correctly and safely.

3. Shutoff Valve and Fuel Shut-Off Valve: These valves use the O Ring Seal to create a secure barrier that prevents fluid flow when the valve is closed. This is vital for safety and operational control within the engine system.

Gasket and Mounting Components

1. F.P. Gasket Set and Fuel Pump Gasket Set: The O Ring Seal complements these gasket sets by providing additional sealing at critical points where gaskets alone may not suffice. This enhances the overall seal integrity of the fuel system.

2. Fuel Pump Kit Gasket: Similar to the gasket sets, the O Ring Seal is used in conjunction with the fuel pump kit gasket to ensure comprehensive sealing around the pump components.

Injector and Plumbing Components

1. Injector Plumbing: The O Ring Seal is used in the plumbing connections of fuel injectors to prevent leaks and maintain fuel pressure. This ensures that the injectors receive a consistent fuel supply.

2. Fuel Valve and Fuel Valve Mounting: These components utilize the O Ring Seal to ensure that the valve mounting is secure and leak-free, which is essential for the proper operation of the fuel valve.

Spares and Additional Components

1. Engine Spares Set and Set of Spares: The O Ring Seal is included in these spares sets to ensure that any replacement or repair can be conducted without compromising the seal integrity of the engine system.

2. Kit On Board Spares: This kit includes the O Ring Seal to provide a comprehensive solution for on-board repairs, ensuring that the engine can be maintained effectively in the field.

Conclusion

In summary, the O Ring Seal, part number 190876, plays a vital role in maintaining the seal integrity across a wide range of engine components. Its application ensures that fuel systems, valves, solenoids, gaskets, and plumbing connections operate efficiently and safely.