4938410
Oil Filler Tube
Cummins®

Introduction

The Cummins 4938410 Oil Filler Tube is a component designed for use in heavy-duty trucks. It plays a role in the engine’s lubrication system, contributing to the maintenance and operational efficiency of these vehicles. Understanding its function and significance can help ensure the proper functioning and longevity of the truck’s engine.

Basic Concepts of Oil Filler Tubes

An oil filler tube is 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 be introduced into the engine’s lubrication system. This ensures that all moving parts within the engine are adequately lubricated, which is vital for the engine’s performance and durability. Proper lubrication reduces friction, minimizes wear, and helps in dissipating heat, all of which contribute to the engine’s overall efficiency and lifespan ¹.

Purpose of the 4938410 Oil Filler Tube

This Cummins part facilitates the addition of oil to the engine, ensuring that the engine maintains the correct oil level. This is necessary for optimal lubrication of engine components. It is integral to the routine maintenance of heavy-duty trucks, allowing for easy and efficient oil changes or top-ups, ensuring the engine operates within its designed parameters ².

Key Features

The Cummins 4938410 Oil Filler Tube is constructed with materials that offer durability and resistance to the harsh conditions found in heavy-duty truck engines. Its design includes features that enhance its performance and longevity, such as a secure fitting mechanism that prevents leaks and ensures a tight seal. The build quality reflects Cummins’ commitment to producing reliable components for demanding applications ³.

Benefits

Using the Cummins 4938410 Oil Filler Tube offers several advantages. It contributes to improved engine performance by ensuring consistent and adequate lubrication. The design of the tube makes it user-friendly, simplifying the process of adding oil to the engine. Its reliability under various operating conditions makes it a valuable component for maintaining the efficiency and longevity of heavy-duty truck engines.

Installation Process

Installing the 4938410 Oil Filler Tube requires following a series of steps to ensure a secure and effective fit. The process involves preparing the engine area, aligning the tube with the engine’s oil fill port, and securing it in place. Tools required may include wrenches for tightening connections and possibly a torque wrench to ensure proper tension. Best practices include checking for any obstructions before installation and ensuring all connections are tight to prevent leaks.

Maintenance and Care

Routine maintenance of the 4938410 Oil Filler Tube includes regular inspection for signs of wear or damage, cleaning around the tube to prevent debris accumulation, and ensuring it remains securely fastened. Replacement guidelines suggest monitoring the tube’s condition during regular oil changes and replacing it if any signs of degradation or leakage are observed. Proper care of this component ensures the continued efficient operation of the engine’s lubrication system.

Troubleshooting Common Issues

Common issues with oil filler tubes may include leaks or blockages. Troubleshooting these problems involves inspecting the tube and its connections for any signs of damage or misalignment. Addressing leaks may require tightening connections or replacing the tube if it is damaged. Blockages can often be resolved by cleaning the tube or, in some cases, replacing it to ensure unobstructed oil flow.

Cummins Corporation Overview

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 quality, Cummins serves customers in approximately 190 countries and territories worldwide. The company is renowned for its commitment to producing reliable and efficient power solutions for various industries, including automotive and heavy-duty trucking.

Cummins Engine Compatibility with Oil Filler Tube Part 4938410

The Cummins Oil Filler Tube part number 4938410 is designed to fit a variety of Cummins engines, ensuring a proper seal and functionality across different models. Here is a detailed breakdown of the engine compatibility for this part:

Small Bore Engines

• QSB3.9 30 CM550
• QSB3.9 CM2880 B138
• QSB4.5 CM2250 EC
• QSB4.5 CM850 (CM2850)
• QSB5.9 30 CM550
• QSB5.9 44 CM550
• QSB5.9G
• QSB6.7 CM2250
• QSB6.7 CM2350 B105
• QSB6.7 CM850 (CM2850)
• QSB7 CM2880 B117

These engines, all part of the QSB series, benefit from the 4938410 Oil Filler Tube due to their similar design and specifications. This part ensures that the oil filling process is efficient and secure, maintaining the integrity of the engine’s lubrication system.

Medium Bore Engines

• QSB3.9
• QSB4.5
• QSB5.9
• QSB6.7

The medium bore engines also utilize the 4938410 Oil Filler Tube. This part is engineered to fit seamlessly with these models, providing a reliable method for oil addition and preventing leaks.

Large Bore Engines

• 4B3.9
• 6B5.9
• B3.9 G
• B4.5
• G5.9
• G5.9 CM558
• ISB CM550

For the larger bore engines, the 4938410 Oil Filler Tube is designed to accommodate the increased size and power of these models. This part ensures that the oil filling process remains efficient and secure, even under higher pressures and temperatures.

By ensuring compatibility across a wide range of Cummins engines, the 4938410 Oil Filler Tube provides a reliable and versatile solution for maintaining the engine’s lubrication system.

Role of Part 4938410 Oil Filler Tube in Engine Systems

The 4938410 Oil Filler Tube is a component in the lubrication system of an engine. It is strategically positioned to facilitate the smooth and efficient filling of oil into the engine’s lubrication system.

In the context of the arrangement of engine components, the Oil Filler Tube is typically located on the cylinder block or connected to the oil fill port. This placement ensures that oil can be introduced directly into the crankcase, where it is distributed to various moving parts within the engine.

The tube is often connected to the oil fill cap, which is secured by a gasket to ensure a tight seal. This seal is vital to prevent oil leaks and maintain the integrity of the lubrication system. The Oil Filler Tube also interacts with the cover of the engine, which may include the valve cover or timing cover, depending on the engine design. This interaction ensures that the oil is directed to the appropriate areas within the engine, enhancing the overall efficiency of the lubrication process.

By integrating the 4938410 Oil Filler Tube into these components, the engine’s lubrication system is able to maintain optimal performance, reducing friction and wear on critical engine parts. This, in turn, contributes to the longevity and reliability of the engine.

Conclusion

The Cummins 4938410 Oil Filler Tube is a critical component in the maintenance and efficiency of heavy-duty truck engines. Its design and features ensure reliable oil addition, contributing to the engine’s performance and durability. Proper installation, maintenance, and troubleshooting of this part are essential for the continued efficient operation of the engine’s lubrication system.