3934130
Oil Filler Tube
Cummins®

Understanding the Cummins Oil Filler Tube Part #3934130

Introduction

Oil filler tubes are critical components in the maintenance and operation of commercial truck engines. They facilitate the essential task of adding oil to the engine, ensuring that the lubrication system functions correctly. Cummins, a renowned name in the heavy-duty truck industry, manufactures high-quality parts designed to enhance engine performance and longevity. This article delves into the Cummins Oil Filler Tube Part #3934130, providing a comprehensive understanding of its function, integration into the engine system, and maintenance requirements.

Basic Concepts Related to Oil Filler Tubes

An oil filler tube is a conduit through which engine oil is added to the crankcase. The role of oil in engine operation cannot be overstated; it lubricates moving parts, reduces friction, cools the engine, and helps seal combustion chambers ¹. The engine lubrication system circulates oil to various components, ensuring smooth operation and preventing wear and tear.

How an Oil Filler Tube Works

The oil filler tube plays a pivotal role in the engine’s lubrication system. It allows for the addition of oil to the crankcase, which is then distributed by the oil pump to critical engine components. The process of adding oil via the filler tube is straightforward: the cap is removed, oil is poured in until it reaches the appropriate level on the dipstick, and the cap is replaced. Maintaining proper oil levels is crucial for engine health, as insufficient oil can lead to increased friction and potential engine damage ².

Purpose of the Cummins Oil Filler Tube Part #3934130

The Cummins Oil Filler Tube Part #3934130 is specifically designed to enhance the efficiency and longevity of Cummins engines. This part ensures a secure and leak-free connection for oil addition, contributing to the overall performance of the engine. Using genuine Cummins parts, like the Oil Filler Tube Part #3934130, is vital for optimal engine operation, as they are engineered to meet the stringent standards required for heavy-duty applications ³.

Troubleshooting and Maintenance

Oil filler tubes can encounter issues such as leaks, blockages, or damage, which can compromise engine lubrication. Symptoms of a faulty oil filler tube include oil leaks around the tube, difficulty in adding oil, or inconsistent oil levels. To troubleshoot these issues, inspect the tube for visible damage, ensure the cap is securely fastened, and check for proper alignment and fit. Regular maintenance, such as cleaning the area around the filler tube and inspecting it during routine oil changes, can prolong its life. It is recommended to follow the manufacturer’s maintenance schedule for oil filler tubes to ensure they remain in optimal condition ⁴.

Cummins: A Leader in Heavy-Duty Truck Parts

Cummins has established a reputation for excellence in the heavy-duty truck industry. Their commitment to quality and innovation is evident in the design and manufacturing of their parts. Using Cummins parts, such as the Oil Filler Tube Part #3934130, offers numerous benefits, including enhanced engine performance, reliability, and longevity. Cummins’ dedication to producing high-quality components ensures that commercial trucks operate efficiently and with minimal downtime.

Expert Insights and Best Practices

Industry experts emphasize the importance of regular maintenance of oil filler tubes to prevent issues and ensure engine efficiency. Best practices include using the correct type and grade of oil, following the recommended maintenance schedule, and inspecting the filler tube during each oil change. Real-world examples demonstrate that proper maintenance of oil filler tubes can significantly impact engine performance, reducing the risk of costly repairs and extending the engine’s lifespan.

Cummins Oil Filler Tube 3934130 Compatibility

The Cummins Oil Filler Tube part number 3934130 is designed to fit a range of Cummins engines, ensuring a secure and efficient oil filling process. This part is crucial for maintaining proper oil levels and preventing oil leaks.

Engine Compatibility

• 6B5.9: The 3934130 Oil Filler Tube is compatible with the 6B5.9 engine, providing a reliable seal and ensuring that oil is added correctly.
• B4.5: This part fits the B4.5 engine, offering a precise fit that aligns with the engine’s design specifications.
• QSB3.9 30 CM550: The 3934130 Oil Filler Tube is engineered to fit the QSB3.9 30 CM550 engine, ensuring optimal performance and ease of maintenance.
• QSB5.9 30 CM550: This part is also compatible with the QSB5.9 30 CM550 engine, providing a secure fit that helps maintain proper oil levels.
• QSB5.9 44 CM550: The 3934130 Oil Filler Tube fits the QSB5.9 44 CM550 engine, ensuring that oil is added correctly and efficiently.
• QSB6.7 CM850 (CM2850): This part is designed to fit the QSB6.7 CM850 (CM2850) engine, providing a reliable seal and ensuring that oil is added correctly.
• QSB7 CM2880 B117: The 3934130 Oil Filler Tube is compatible with the QSB7 CM2880 B117 engine, offering a precise fit that aligns with the engine’s design specifications.

Grouping Engines for Compatibility

• QSB Series Engines: The 3934130 Oil Filler Tube is compatible with multiple QSB series engines, including the QSB3.9 30 CM550, QSB5.9 30 CM550, QSB5.9 44 CM550, and QSB6.7 CM850 (CM2850). This grouping ensures that users can easily find a compatible part for their specific QSB engine model.
• B Series Engines: The 3934130 Oil Filler Tube fits the B4.5 engine, providing a reliable seal and ensuring that oil is added correctly.

By understanding the compatibility of the Cummins Oil Filler Tube 3934130 with various engine models, users can ensure that they are using the correct part for their specific engine, maintaining optimal performance and reliability.

Role of Part 3934130 Oil Filler Tube in Engine Systems

The 3934130 Oil Filler Tube is an essential component in the lubrication system of an engine, facilitating the proper flow and distribution of oil to various engine parts. Its integration with other components ensures the engine operates smoothly and efficiently.

Integration with the Oil Fill System

The Oil Filler Tube is directly connected to the oil fill system, allowing for the addition of oil into the engine. This tube guides the oil from the fill cap to the cylinder block, ensuring that the oil reaches its intended destination without spillage or contamination. The design of the tube often includes features that prevent air from being drawn into the system, maintaining the integrity of the oil supply.

Connection to the Cylinder Block

Once the oil passes through the Oil Filler Tube, it enters the cylinder block. The cylinder block houses the cylinders, pistons, and other moving parts that require lubrication. The Oil Filler Tube’s role is to ensure a consistent and uncontaminated oil flow into the block, which is vital for the lubrication of these components. Proper lubrication reduces friction, wear, and heat generation, contributing to the overall efficiency and longevity of the engine.

Relationship with the Engine Cover

The Oil Filler Tube is also positioned in relation to the engine cover. The cover protects the internal components of the engine and often includes the oil fill cap, which is connected to the tube. The arrangement ensures that the tube is securely fastened and aligned correctly, preventing leaks and ensuring that the oil fill process is straightforward and mess-free.

Overall Arrangement

The arrangement of the Oil Filler Tube within the engine system is designed to optimize the lubrication process. It works in concert with the oil fill system, cylinder block, and engine cover to ensure that oil is efficiently distributed throughout the engine. This systematic approach to lubrication is fundamental to the engine’s performance and durability.

Conclusion

In summary, the Cummins Oil Filler Tube Part #3934130 is a vital component in the lubrication system of Cummins engines. Understanding its function, integration into the engine system, and maintenance requirements is essential for ensuring optimal engine performance. By using high-quality parts and following recommended maintenance practices, mechanics and engineers can contribute to the efficiency and longevity of commercial truck engines. Implementing the troubleshooting and maintenance tips provided will help maintain the integrity of the oil filler tube and, by extension, the engine it serves.