4990847
Oil Filler Tube
Cummins®

Introduction

The Cummins 4990847 Oil Filler Tube is a component designed for use in commercial trucks. It serves a specific function within the engine’s lubrication system, ensuring that the engine operates efficiently and maintains optimal performance. Understanding its purpose and significance can help in maintaining the overall health and longevity of the truck’s engine.

Basic Concepts of Oil Filler Tubes

An Oil Filler Tube is a part of the engine system that allows for the addition of oil to the engine. Its primary function is to provide a pathway for oil to enter the engine, ensuring that the lubrication system remains adequately filled. This contributes to the engine’s performance by maintaining proper oil levels, which are crucial for reducing friction between moving parts, cooling the engine, and cleaning internal components ¹.

Purpose of the Cummins 4990847 Oil Filler Tube

This Cummins part facilitates the addition of oil to the engine, ensuring that the lubrication system maintains the correct oil level, which is vital for the engine’s efficiency and durability. By allowing for easy oil addition, it helps in keeping the engine well-lubricated, thereby supporting its overall performance and longevity.

Key Features

The 4990847 is constructed from durable materials, designed to withstand the rigors of commercial truck use. Its design includes features that enhance its performance and durability, such as a secure fitting mechanism to prevent oil leaks and a robust construction that resists wear and corrosion. These attributes ensure that the tube can endure the demanding conditions of truck operation while maintaining its functionality ².

Benefits

Using this part offers several benefits. It contributes to improved engine performance by ensuring consistent oil levels, which aids in reducing wear on engine components. The design of the tube also makes it easy to use, simplifying the process of adding oil to the engine. Additionally, its durable construction promotes longevity, reducing the need for frequent replacements and contributing to the overall efficiency of truck maintenance.

Installation Process

Installing the 4990847 involves several steps to ensure proper fitting. Begin by locating the existing oil filler tube on the engine and removing it, taking care to avoid spills. Next, align the new tube with the fitting on the engine and secure it in place, ensuring a tight seal to prevent leaks. Tools required may include a socket wrench for removal and installation, and a torque wrench to ensure the tube is fastened to the manufacturer’s specifications.

Maintenance Tips

To ensure the optimal performance of the 4990847, regular maintenance is recommended. This includes inspecting the tube for signs of wear or damage during routine engine checks. Cleaning the area around the tube can prevent debris from entering the engine during oil changes. Additionally, ensuring the tube is securely fastened after each use can help maintain a leak-free seal, contributing to the engine’s efficiency and longevity.

Troubleshooting Common Issues

Common issues with Oil Filler Tubes may include leaks, difficulty in adding oil, or corrosion. To address these problems, first, ensure the tube is correctly installed and securely fastened. If leaks persist, inspect the tube for damage and replace it if necessary. Corrosion can be mitigated by cleaning the tube and its surroundings regularly and applying a protective coating if recommended by the manufacturer.

Cummins Engine Oil Filler Tube Compatibility

The 4990847 is designed to fit specific models within the Cummins engine lineup. This part is integral for maintaining proper oil levels and ensuring the engine operates smoothly.

B3.3 Engines

The Oil Filler Tube 4990847 is compatible with the B3.3 engine series. This engine model is known for its reliability and efficiency, often used in various applications where consistent performance is crucial.

QSB3.3 CM2150 Engines

Similarly, the Oil Filler Tube 4990847 is also suitable for the QSB3.3 CM2150 engine. This particular engine model is part of the QSB series, which is recognized for its robust construction and adaptability to different operational environments.

Grouping of Engines

The Oil Filler Tube 4990847 is designed to fit both the B3.3 and QSB3.3 CM2150 engines, indicating a shared design or requirement in these engine models. This compatibility ensures that users can easily find and install the correct part for their specific engine needs.

Role of Part 4990847 Oil Filler Tube in Engine Systems

The 4990847 is an essential component in the arrangement of an engine’s lubrication system. It facilitates the process of adding oil to the engine, ensuring that the lubrication system maintains optimal oil levels.

In the oil fill arrangement, the Oil Filler Tube serves as the primary conduit for introducing oil into the engine. It is typically connected to the oil tank or reservoir and extends to the engine’s oil sump or crankcase. This tube allows for easy and controlled addition of oil, which is necessary for the proper functioning of the engine’s moving parts.

The Oil Filler Tube also often incorporates a breather function, allowing air to escape from the crankcase as oil is added. This prevents a vacuum from forming, which could impede the oil flow and affect engine performance. Additionally, the tube may include a filter or screen to prevent contaminants from entering the engine oil during the filling process, thereby maintaining the integrity of the lubrication system ³.

Conclusion

In summary, the 4990847 plays a significant role in the oil fill arrangement by providing a reliable and clean pathway for oil to enter the engine, supporting the overall efficiency and longevity of the engine’s lubrication system.