3912689
Oil Filler Tube
Cummins®

The Cummins 3912689 Oil Filler Tube is a component designed for use in heavy-duty trucks. It serves a specific function within the engine’s lubrication system, contributing to the overall performance and reliability of the vehicle. Understanding its purpose and significance can help in maintaining optimal engine operation.

Basic Concepts of Oil Filler Tubes

An oil filler tube is a part of the engine lubrication system that allows for the addition of oil to the engine. Its function is to provide a pathway for oil to enter the crankcase, ensuring that the engine maintains the necessary oil levels for lubrication. This lubrication is vital for reducing friction between moving parts, cooling the engine, and removing contaminants. Proper lubrication contributes to maintaining optimal engine performance and longevity ¹.

Purpose of the Cummins 3912689 Oil Filler Tube

The Cummins 3912689 Oil Filler Tube plays a role in the lubrication system by facilitating the addition of oil to the engine. It ensures that oil levels are maintained, which is important for the lubrication of engine components. This, in turn, helps in reducing wear and tear, enhancing engine efficiency, and supporting overall vehicle performance.

Key Features

The Cummins 3912689 Oil Filler Tube is characterized by its design and the materials used in its construction. It is engineered to be durable and resistant to the high temperatures and pressures found within an engine environment. The tube is made from materials that ensure it can withstand these conditions without degrading, which enhances its performance and longevity. Additionally, its design may include features that make it easy to use and compatible with specific engine models ².

Benefits

Using the Cummins 3912689 Oil Filler Tube offers several benefits. It contributes to improved engine lubrication, which is important for engine health and performance. The design of the tube may also make it easier to use, facilitating the oil-filling process. Furthermore, its compatibility with Cummins engines ensures that it meets the specific requirements of these engines, providing reliable performance.

Installation Process

Installing the Cummins 3912689 Oil Filler Tube requires following a series of steps to ensure it is properly fitted. This process may involve using specific tools or equipment and observing safety precautions. Proper installation is important for the tube to function correctly and to avoid potential issues such as leaks or improper oil levels ³.

Maintenance and Care

To ensure the Cummins 3912689 Oil Filler Tube performs optimally and has a long service life, regular maintenance and care are recommended. This may include inspecting the tube for signs of wear or damage, cleaning it as necessary, and following guidelines for when it should be replaced. Proper maintenance helps in preventing issues and ensures the tube continues to contribute to efficient engine lubrication.

Troubleshooting Common Issues

Common issues that may arise with the Cummins 3912689 Oil Filler Tube include leaks, blockages, or damage. Identifying these issues early and addressing them can help in maintaining engine performance. Solutions may involve repairing or replacing the tube, depending on the nature of the problem.

About Cummins

Cummins Inc. is a company with a long-standing reputation in the industry for manufacturing high-quality automotive components. Its history and commitment to quality are reflected in the design and performance of its products, including the Cummins 3912689 Oil Filler Tube.

Compatibility

The Cummins Oil Filler Tube part number 3912689 is designed to fit seamlessly with several Cummins engine models. This part is crucial for maintaining the proper oil level and ensuring the engine operates smoothly. Below is a detailed look at the compatibility of this oil filler tube with specific Cummins engines.

4B3.9 Engines

The 3912689 oil filler tube is engineered to fit the 4B3.9 engines. This engine is known for its robust performance and reliability, making it a popular choice in various applications. The oil filler tube ensures that the oil level is maintained correctly, preventing engine damage due to insufficient lubrication.

6B5.9 Engines

Similarly, the 3912689 oil filler tube is also compatible with the 6B5.9 engines. This engine is another variant in the Cummins lineup, recognized for its power and efficiency. The oil filler tube plays a pivotal role in the engine’s maintenance by allowing for easy and accurate oil level checks.

Group Compatibility

The 3912689 oil filler tube is part of a series of components designed to work with multiple Cummins engine models. This compatibility ensures that technicians and maintenance personnel can use a standardized part across various engine types, simplifying inventory management and reducing the need for multiple specialized parts.

By ensuring that the oil filler tube fits these engines, Cummins maintains a high standard of quality and reliability, providing users with a dependable component that enhances engine performance and longevity.

Role of Part 3912689 Oil Filler Tube in Engine Systems

The 3912689 Oil Filler Tube is an essential component in the lubrication system of an engine. It facilitates the process of adding oil to the engine, ensuring that all moving parts are adequately lubricated for optimal performance and longevity.

Integration with the Cylinder Block

The Oil Filler Tube is strategically positioned to interface with the cylinder block. Once oil is introduced through the filler tube, it flows into the crankcase, which is an integral part of the cylinder block. The crankcase serves as a reservoir for the engine oil, from which it is pumped to various engine components. The efficient flow of oil from the filler tube to the crankcase is vital for maintaining the lubrication of the crankshaft, connecting rods, and other internal components housed within the cylinder block.

Interaction with the Engine Cover

The Oil Filler Tube also plays a significant role in conjunction with the engine cover. The tube is typically mounted through the engine cover, providing a sealed pathway for oil to enter the engine. The engine cover, often made of metal or composite materials, protects the internal components from contaminants and also helps in containing oil within the engine system. The seal between the Oil Filler Tube and the engine cover is designed to prevent oil leaks, ensuring that the lubrication system remains intact and functions as intended.

Conclusion

In summary, the Cummins 3912689 Oil Filler Tube is a key component that ensures the proper introduction and distribution of oil within the engine system, working in tandem with the cylinder block and engine cover to maintain the engine’s lubrication needs. Regular maintenance and proper installation are crucial for ensuring the longevity and efficiency of this part, ultimately contributing to the overall performance and reliability of the vehicle.