3919756
Fuel Drain Tube
Cummins®

Introduction

The Cummins 3919756 Fuel Drain Tube is a specialized component designed for use in the fuel systems of commercial trucks. Its primary function is to facilitate the draining of fuel from the system, which is essential for maintenance procedures and ensuring the integrity of the fuel system. This part is integral to the operation of commercial trucks, contributing to the efficient and safe management of the fuel system.

Purpose and Function

The Fuel Drain Tube plays a role in the fuel system by allowing for the controlled release of fuel. This function is vital for several reasons: it enables the removal of water or contaminants that may have accumulated in the fuel tank, it assists in the changeover of fuel filters, and it helps in preparing the system for repairs or inspections. By providing a means to drain fuel, the tube helps maintain the overall efficiency and reliability of the truck’s fuel system ¹.

Key Features

This Cummins part is constructed with materials that are resistant to the corrosive effects of fuel, ensuring durability and longevity. It features a design that allows for a secure connection to the fuel system, typically through threaded or barbed fittings. The tube may also include a valve mechanism that enables the user to control the flow of fuel during the draining process. These design elements contribute to the tube’s performance and ease of use ².

Benefits

Using the Fuel Drain Tube offers several advantages. It enhances the reliability of the fuel system by allowing for regular maintenance and the removal of contaminants. The tube’s design facilitates ease of maintenance, reducing the time and effort required for fuel system servicing. Additionally, it is compatible with Cummins engines, ensuring that it meets the stringent quality standards set by the manufacturer for engine components ³.

Installation Process

Installing the Fuel Drain Tube requires following a series of steps to ensure proper fitting and function. The process typically involves locating the drain point in the fuel system, attaching the tube using the appropriate fittings, and securing it in place. Tools such as wrenches may be required to tighten connections. It is important to consult the vehicle’s service manual for specific instructions and to ensure that all connections are secure and leak-free.

Maintenance and Troubleshooting

Maintaining the Fuel Drain Tube involves regular inspection for signs of wear or damage, ensuring that connections remain tight, and verifying that the valve mechanism operates correctly. Common issues may include leaks at connection points or a malfunctioning valve. Troubleshooting steps include checking for loose fittings, inspecting the tube for damage, and ensuring that the valve is not obstructed. Addressing these issues promptly can prevent more significant problems within the fuel system.

Safety Considerations

When working with the Fuel Drain Tube, it is important to follow safety practices to protect oneself and others. This includes handling fuel with care to avoid spills and ensuring that the fuel system is depressurized before performing maintenance. Wearing appropriate personal protective equipment, such as gloves and safety glasses, is also recommended. Additionally, working in a well-ventilated area helps to mitigate the risks associated with fuel vapors.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established itself as a trusted name in the commercial truck industry. The company is committed to quality and innovation, consistently delivering engine components that meet the demanding requirements of commercial applications. Cummins’ dedication to excellence is reflected in its wide range of products, including the 3919756 Fuel Drain Tube, which is designed to enhance the performance and reliability of commercial truck fuel systems.

Conclusion

The Cummins 3919756 Fuel Drain Tube is a vital component in the maintenance and operation of commercial truck fuel systems. Its design and function contribute to the efficient and safe management of fuel, ensuring the reliability and performance of the engine. Regular maintenance and proper installation are essential to maximize the benefits of this part.