4916741
O-Ring Seal
Cummins®

The Cummins 4916741 O-Ring Seal is a critical component designed to ensure the integrity of seals within commercial truck engines. Its role is to prevent leaks and maintain system efficiency, contributing to the overall performance and reliability of the vehicle.

Basic Concepts of O-Ring Seals

An O-Ring Seal is a type of gasket with a circular cross-section, used to create a seal between two or more parts. It functions by being compressed within a groove, creating a barrier that prevents the escape of fluids or gases. O-Ring Seals are widely utilized in mechanical systems due to their effectiveness in sealing dynamic and static applications ¹.

Purpose of the 4916741 O-Ring Seal

This Cummins part is specifically designed to fit within the engine systems of trucks, where it plays a role in maintaining the seal between components. Its placement is critical in areas where fluid or gas containment is necessary to prevent leaks and ensure efficient operation of the engine.

Key Features

The 4916741 O-Ring Seal is constructed from materials that offer high durability and resistance to various operating conditions. Its design characteristics include precise dimensions and a robust material composition, making it suitable for the demanding environments of heavy-duty applications ².

Benefits

Utilizing the 4916741 O-Ring Seal provides several advantages, such as enhanced sealing performance, extended longevity, and superior resistance to a range of operating conditions. These factors contribute to the reliable and efficient operation of the truck’s engine system.

Installation Considerations

Proper installation of the 4916741 O-Ring Seal is vital for its performance and longevity. Guidelines for installation include ensuring the groove is clean and free of debris, using the correct amount of lubrication, and avoiding damage to the O-Ring during the installation process.

Troubleshooting Common Issues

Common problems with O-Ring Seals may include leaks or failure due to wear and tear. Troubleshooting steps involve inspecting the seal for damage, checking the groove for proper fitment, and ensuring that the installation process was correctly followed.

Maintenance Tips

Regular maintenance of the 4916741 O-Ring Seal involves periodic inspection for signs of wear or damage, cleaning the groove area, and replacing the seal as necessary. These practices help to prolong the service life of the seal and maintain the efficiency of the engine system.

Compatibility with Engine Models

This Cummins part is designed to fit seamlessly with a variety of Cummins engine models. It is crucial for maintaining the integrity of the engine’s fluid systems by preventing leaks and ensuring that the engine operates efficiently.

QSK19 Series Engines

• QSK19 CM2350 K105
• QSK19 CM2350 K114
• QSK19 CM2350 K144G
• QSK19 CM850 MCRS

QSK38 Series Engines

• QSK38 CM2150 MCRS
• QSK38 CM850 MCRS

QSK50 Series Engines

• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108

QSK60 Series Engines

• QSK60 CM850 MCRS

QSK95 Series Engines

• QSK95 CM2350 K111
• QSK95 CM2350 K113

By ensuring that the 4916741 O-Ring Seal is properly fitted, engine owners can maintain the efficiency and longevity of their engines, preventing potential leaks and system failures.

Role of Part 4916741 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.

Integration with Engine Components

• Camshaft and Camshaft Gear: The O-Ring Seal is used to secure the camshaft within its housing, ensuring that lubricants do not escape, which is essential for reducing friction and wear on the camshaft and gear.

• Camshaft Cover: It seals the interface between the camshaft and the cover, preventing oil leakage which could lead to contamination or loss of lubrication.

• Camshaft Mounting: Seals are employed at mounting points to ensure that the camshaft remains securely in place while preventing oil from seeping out.

• Clip and Connecting Rod and Piston: In some designs, O-Ring Seals are used around clips that secure components like the connecting rod and piston, ensuring a tight fit and preventing oil from escaping.

• Cylinder Head and Cylinder Head Gasket Set: Seals are critical at the interface between the cylinder head and the engine block, ensuring that coolant and oil do not mix and that combustion gases remain contained.

• Fuel Injector and Fuel Top Level Assembly Injector: Seals around fuel injectors prevent fuel leaks, ensuring that the fuel system operates efficiently and safely.

• Head Quadrant Gasket Kit and Injector Kit: These kits often include O-Ring Seals to ensure a secure fit and prevent leaks at various connection points within the fuel and coolant systems.

• Injector Repair Kit and O Ring Plug: These kits may include O-Ring Seals to replace worn seals, restoring the integrity of the fuel system.

• Performance Parts: High-performance engine modifications often require precise sealing to handle increased pressures and temperatures, making O-Ring Seals a vital component.

• Quad Cylinder Head Gasket Set and Quadrant Cylinder Hardware Gasket Set: These sets include seals to ensure that each cylinder operates independently without cross-contamination of fluids.

• Service Kit, Set, Single Head Gasket, and Upper Engine Gasket Kit: Comprehensive service kits often include O-Ring Seals to address common wear points and ensure the engine operates efficiently post-service.

• Wiring Retainer Bracket: Although primarily a structural component, seals may be used to secure wiring in place, preventing chafing and ensuring electrical integrity.

The application of the 4916741 O-Ring Seal across these components underscores its importance in maintaining the operational efficiency and longevity of engine systems.

Conclusion

The Cummins 4916741 O-Ring Seal plays a vital role in the maintenance and efficiency of commercial truck engines. Its proper installation, regular maintenance, and compatibility with various engine models ensure that it contributes significantly to the prevention of leaks and the overall performance of the engine system.