3073966
O Ring Seal
Cummins®

The Cummins 3073966 O Ring Seal is a critical component in the maintenance and operation of commercial trucks. Cummins, a renowned manufacturer in the industry, produces a range of parts designed to enhance the performance and reliability of truck systems. This part plays a significant role in ensuring the smooth operation of truck systems by providing effective sealing solutions.

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. O Rings are widely used in various applications due to their simplicity, effectiveness, and versatility in creating reliable seals under different conditions ¹.

Purpose of the 3073966 O Ring Seal in Truck Operation

This Cummins part is utilized in specific areas within a truck’s system to prevent leaks and maintain system integrity. It is commonly installed in joints and connections where fluid or gas transfer occurs. By creating a tight seal, it ensures that the system operates efficiently without the loss of fluids or gases, which could lead to decreased performance or potential damage to other components.

Key Features of the 3073966 O Ring Seal

The 3073966 is designed with specific characteristics that enhance its performance and durability. It is made from materials that offer resistance to a range of temperatures and chemicals, ensuring compatibility with various truck components. Its design allows it to withstand compression and deformation without losing its sealing properties, contributing to its longevity and reliability in demanding environments ².

Benefits of Using the 3073966 O Ring Seal

Utilizing this part in truck operations offers several advantages. It provides improved reliability by ensuring effective seals are maintained throughout the system. Its durability contributes to the longevity of the truck’s components, reducing the need for frequent replacements. Additionally, it enhances the efficiency of the system by preventing leaks, which can lead to performance issues or damage.

Installation Considerations

Proper installation of the 3073966 is vital to ensure optimal performance and longevity. Guidelines recommend cleaning the groove where the seal will be placed to remove any debris that could affect the seal’s effectiveness. Careful handling of the O Ring is also advised to avoid damage that could compromise its sealing capabilities. Following these best practices ensures that the seal functions as intended within the truck’s system.

Troubleshooting Common Issues

O Ring Seals, including the 3073966, may encounter issues over time. Symptoms of failure or wear can include leaks or a decrease in system performance. Troubleshooting steps may involve inspecting the seal for signs of damage, ensuring it is properly seated within the groove, and checking for any debris that could be affecting its performance. Addressing these issues promptly can help maintain the integrity of the truck’s system.

Maintenance Tips

Regular maintenance of O Ring Seals is important to prolong their lifespan and ensure continued effective operation within the truck’s system. This includes periodic inspections for signs of wear or damage, cleaning the areas around the seal to prevent debris accumulation, and replacing the seal if it shows signs of failure. Adhering to these maintenance practices can contribute to the overall reliability and performance of the truck.

Cummins: Manufacturer Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its wide range of products that enhance the performance and reliability of trucks. With a history of innovation and quality, Cummins has established a strong reputation for producing parts that meet the demanding requirements of commercial truck operations. The company’s commitment to excellence is reflected in its products, including the 3073966 O Ring Seal ³.

Compatibility of Cummins O Ring Seal 3073966

The Cummins O Ring Seal part number 3073966 is designed to fit a variety of Cummins engines. This seal is crucial for maintaining the integrity of various engine systems by preventing leaks and ensuring that components operate efficiently. Below is a detailed description of the engines with which this O Ring Seal is compatible.

ISB and ISB CM850 Series

• ISB CM850
• QSB5.9 CM850

ISC and ISC CM850 Series

• ISC CM850

ISL and ISL G CM2180 Series

• ISL G CM2180
• ISL9 CM2150 SN
• ISL9.5 CM2880 L138

ISX12 G CM2180 EJ

• ISX12 G CM2180 EJ

L8.9 Series

• L8.9
• L8.9 CM2670 L134C
• L8.9 L121

L9 Series

• L9 CM2670 L128B
• L9.5 L117

QSC and QSC8.3 Series

• QSC8.3 CM2880 C102
• QSC8.3 CM554
• QSC8.3 CM850(CM2850)

QSL and QSL9 Series

• QSL8.9 CM2150 L141
• QSL9 CM554
• QSL9 CM850(CM2850)
• QSL9.3 CM2880 L113

QSK95 CM2350 K113

• QSK95 CM2350 K113

QST30 Series

• QST30 CM2350 T101
• QST30 CM552

Role of Part 3073966 O Ring Seal in Engine Systems

The O Ring Seal, identified by part number 3073966, is integral to the efficient operation and maintenance of various engine components. Its application spans across multiple systems, ensuring optimal performance and longevity of the engine.

Breather Housing and Crankcase Breather Arrangement

In the breather housing and crankcase breather arrangement, the O Ring Seal is employed to create a tight seal, preventing the escape of crankcase gases. This ensures that the breather system functions correctly, maintaining the engine’s internal pressure and reducing the risk of contamination from external elements.

Valve Cover and Cover-Valve

When installed in the valve cover or cover-valve, the O Ring Seal plays a key role in sealing the cover to the engine block. This prevents oil leaks and ensures that the valve train components are adequately lubricated, contributing to the smooth operation of the engine.

Fuel Pressure Regulator and Fuel Transfer Connection

In the fuel pressure regulator and fuel transfer connection, the O Ring Seal is vital for maintaining fuel system integrity. It ensures that fuel lines and connections remain sealed, preventing fuel leaks and maintaining consistent fuel pressure, which is essential for engine performance.

Full Flow Oil Filter and Oil Pump Connection

For the full flow oil filter and oil pump connection, the O Ring Seal is used to ensure a secure fit between the oil filter and the engine block, as well as between the oil pump and its connection points. This is important for maintaining the oil filtration efficiency and ensuring that the oil pump can operate without leaks, thus protecting the engine’s moving parts.

Heat Exchanger and Water Outlet Connection

In the heat exchanger and water outlet connection, the O Ring Seal helps in maintaining the integrity of the cooling system. It ensures that coolant flows efficiently through the engine, preventing leaks that could lead to overheating or inefficient cooling.

Turbocharger and Turbocharger Arrangement

Within the turbocharger and turbocharger arrangement, the O Ring Seal is used to secure connections and prevent leaks in the turbocharger’s oil feed and return lines. This is important for maintaining the turbocharger’s lubrication and cooling, ensuring its efficient operation and longevity.

Lower and Upper Engine Gasket Kits

In both lower and upper engine gasket kits, the O Ring Seal is utilized to ensure that various engine components are properly sealed. This is essential for preventing oil and coolant leaks, maintaining compression, and ensuring the engine operates within its designed parameters.

Injector Sleeve Installer and R and I Kit

For the injector sleeve installer and removal and installation (R and I) kit, the O Ring Seal is crucial for sealing the injector sleeves within the engine block. This ensures proper fuel delivery to the combustion chambers and prevents fuel leaks, contributing to efficient engine operation.

Service Kit, Overhaul Kit, and Split Flange Kit

In service kits, overhaul kits, and split flange kits, the O Ring Seal is a common component used to replace worn or damaged seals. This is important for restoring the engine’s sealing integrity during maintenance or overhaul procedures, ensuring that the engine continues to operate efficiently and reliably.

The application of the O Ring Seal across these various engine components underscores its importance in maintaining the engine’s efficiency, reliability, and longevity. Proper installation and maintenance of these seals are essential for the overall health and performance of the engine.

Conclusion

The Cummins 3073966 O Ring Seal is a vital component in the maintenance and operation of commercial trucks. Its role in preventing leaks and maintaining system integrity across various engine components highlights its importance in ensuring the efficient and reliable operation of truck systems. Proper installation, maintenance, and understanding of its applications are crucial for maximizing the performance and longevity of truck engines.