3969867
Fuel Drain Tube
Cummins®

Introduction

The Cummins 3969867 Fuel Drain Tube is a critical component in the fuel systems of heavy-duty trucks. It is designed to facilitate the safe and efficient drainage of fuel, which is essential for routine maintenance and emergency situations where rapid fuel removal is necessary ¹.

Purpose and Function

This Cummins part allows for the controlled release of fuel from the system. It is particularly important during maintenance procedures such as filter changes or when the fuel is contaminated. The tube ensures that the drainage process is conducted safely and efficiently, minimizing the risk of fuel spillage ².

Key Features

The Fuel Drain Tube is constructed from high-quality materials that resist the corrosive effects of diesel fuel. It features secure connection types that ensure a tight seal, preventing leaks. The design includes a smooth interior for easy fuel flow and a robust exterior to withstand heavy-duty use ³.

Benefits

Using the 3969867 offers several advantages. It simplifies fuel system maintenance by providing a dedicated path for fuel drainage, leading to more efficient service procedures and reduced downtime. The tube enhances safety by containing the fuel within the system until it is ready to be released into a suitable container. Its compatibility with Cummins engines ensures seamless integration with the fuel system, maintaining engine integrity and performance ⁴.

Installation and Usage

Proper installation of the Fuel Drain Tube is crucial for its effective operation. The installation process involves securing the tube to the fuel system using the provided fittings, ensuring that all connections are tight and free from leaks. When using the tube for fuel drainage, it is important to follow the manufacturer’s guidelines to ensure safety and efficiency. This includes ensuring that the drainage area is well-ventilated and that the fuel is collected in an appropriate container ¹.

Troubleshooting and Maintenance

Common issues with the Fuel Drain Tube may include leaks or blockages. Troubleshooting steps should begin with a visual inspection of the tube and its connections for any signs of damage or wear. If a leak is detected, the connections should be tightened or the tube replaced if necessary. Regular maintenance, such as checking for corrosion and ensuring that connections remain secure, can help prevent issues and ensure the longevity of the component ².

Safety Considerations

When using the Cummins 3969867, it is important to adhere to safety practices to prevent accidents and ensure the well-being of personnel. This includes handling fuel with care to avoid spills and ensuring that the work area is well-ventilated during fuel drainage. Proper personal protective equipment should be worn, and all safety guidelines provided by Cummins should be followed ³.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has established itself as a trusted name in the automotive industry, particularly in the production of diesel engines and components. The company’s commitment to innovation and quality has made it a preferred choice for heavy-duty applications, where reliability and performance are paramount ⁴.

Conclusion

The Cummins 3969867 Fuel Drain Tube is an essential component for the maintenance and operational efficiency of heavy-duty truck fuel systems. Its design and features ensure safe, efficient, and reliable fuel drainage, contributing to the overall performance and longevity of Cummins engines.