3939033
Oil Filler Tube
Cummins®

The Cummins 3939033 Oil Filler Tube is a critical component designed for heavy-duty trucks, ensuring the proper addition and maintenance of engine oil levels. This part is integral to the engine’s lubrication system, contributing to its performance and longevity ¹.

Basic Concepts of Oil Filler Tubes

An oil filler tube is a component within the engine lubrication system that allows for the addition of engine oil. Its function is to provide a pathway for oil to be introduced into the engine, ensuring that lubrication levels are maintained. This is vital for the engine’s performance, as proper lubrication reduces friction between moving parts, minimizes wear, and helps in dissipating heat ².

Purpose of the Cummins 3939033 Oil Filler Tube

The Cummins 3939033 Oil Filler Tube is specifically designed to facilitate the addition of engine oil in heavy-duty trucks. It ensures that oil is introduced into the engine in a controlled manner, maintaining the necessary lubrication levels for optimal engine operation. This part is engineered to integrate seamlessly with the truck’s engine system, providing a reliable means for oil addition and helping to sustain engine performance over time ³.

Key Features

The Cummins 3939033 Oil Filler Tube is constructed with high-quality materials to ensure durability and performance. Its design includes features that enhance its functionality, such as a secure fitting mechanism to prevent leaks and a robust build to withstand the demanding conditions of heavy-duty truck operation. These characteristics contribute to the tube’s effectiveness in maintaining engine lubrication.

Benefits

The Cummins 3939033 Oil Filler Tube offers several advantages. It provides an improved ease of use for oil addition, features enhanced sealing properties to prevent leaks, and contributes to engine efficiency and reliability by ensuring consistent lubrication levels. These benefits make it a valuable component for maintaining the performance and longevity of heavy-duty truck engines.

Installation Process

Installing the Cummins 3939033 Oil Filler Tube requires following a series of steps to ensure a secure and effective fit. Preparatory steps include ensuring the engine is cool and the old oil filler tube, if present, is removed. The necessary tools for installation may include wrenches and sealant. Best practices involve carefully aligning the new tube with the engine’s oil filler neck, applying sealant if required, and tightening it to the manufacturer’s specified torque to ensure a leak-free connection.

Troubleshooting Common Issues

Common issues with oil filler tubes can include leaks or blockages. To address leaks, it is important to inspect the connection for proper sealing and ensure there is no damage to the tube or the fitting. Blockages can be resolved by cleaning the tube or, if necessary, replacing it. Regular inspections and maintenance can help identify and resolve these issues before they lead to more significant problems.

Maintenance Tips

To prolong the life of the Cummins 3939033 Oil Filler Tube, regular maintenance practices are recommended. This includes routine inspections for signs of wear or damage, cleaning the tube to remove any debris that could cause blockages, and monitoring for leaks. If any issues are detected, prompt action should be taken to address them, which may involve repair or replacement of the tube.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a history of innovation and a commitment to quality, Cummins has established a strong reputation in the automotive and heavy-duty truck industry. The company’s product range is designed to meet the demanding requirements of various applications, ensuring reliability and performance.

Compatibility of Oil Filler Tube Part 3939033 with Cummins Engines

The Oil Filler Tube part 3939033, manufactured by Cummins, is designed to fit a range of Cummins engines. This part is crucial for maintaining proper oil levels and ensuring the engine operates smoothly. Below is a detailed description of its compatibility with various Cummins engines:

QSC8.3 Series

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

The Oil Filler Tube part 3939033 is compatible with both the QSC8.3 CM554 and QSC8.3 CM850 (CM2850) engines. This part ensures that the oil filling process is efficient and secure, preventing leaks and maintaining optimal oil levels.

QSC9 and QSL9 Series

• QSC9 CM2250 / QSL9 CM2250
• QSL8.9 CM2150 L141
• QSL9 CM2250
• QSL9 CM2350 L102
• QSL9 CM554
• QSL9 CM850 (CM2850)

The Oil Filler Tube part 3939033 is also compatible with the QSC9 CM2250 and QSL9 CM2250 engines. Additionally, it fits the QSL8.9 CM2150 L141, QSL9 CM2250, QSL9 CM2350 L102, QSL9 CM554, and QSL9 CM850 (CM2850) engines. This part is engineered to fit seamlessly with these engines, ensuring that the oil filling process is both effective and reliable.

The Oil Filler Tube part 3939033 is a versatile component that can be used across multiple Cummins engine models, providing a standardized solution for maintaining proper oil levels and ensuring engine efficiency.

Role of Part 3939033 Oil Filler Tube in Engine Systems

The part 3939033 Oil Filler Tube is an essential component in the arrangement of various engine systems, facilitating the proper functioning and maintenance of these systems.

In the context of the oil fill system, the Oil Filler Tube serves as a conduit for introducing lubricant into the engine. This tube is strategically positioned to allow for easy access during routine maintenance, ensuring that the oil fill process is both efficient and straightforward.

The tube is designed to align with the engine’s oil fill cap, creating a secure pathway for oil to flow into the crankcase. This alignment is vital for preventing spills and ensuring that the oil reaches its intended destination without contamination.

Additionally, the Oil Filler Tube interacts with the engine’s ventilation system, helping to maintain proper pressure levels within the crankcase. This interaction is important for the overall health of the engine, as it aids in the removal of contaminants and moisture that can accumulate during operation.

The design of the Oil Filler Tube also considers the arrangement of surrounding components, such as the valve cover and various sensor housings. This thoughtful placement minimizes the risk of oil leaks and ensures that the tube does not interfere with the operation of adjacent parts.

Overall, the integration of the Oil Filler Tube within the engine system enhances the reliability and efficiency of the oil fill process, contributing to the sustained performance of the engine.

Conclusion

The Cummins 3939033 Oil Filler Tube is a vital component for maintaining engine lubrication in heavy-duty trucks. Its design, compatibility with various Cummins engines, and role in the engine system ensure efficient and reliable oil addition, contributing to the overall performance and longevity of the engine.