3958923
Fuel Drain Tube
Cummins®

The Cummins 3958923 Fuel Drain Tube is a component designed for use in commercial trucks. Its purpose is to facilitate the removal of contaminants and water from the fuel system, ensuring that the fuel delivered to the engine is clean and of high quality. This part plays a role in maintaining the efficiency and reliability of the truck’s fuel system ¹.

Basic Concepts and Functionality

Fuel drain tubes operate on the principle of gravity and pressure differentials within a truck’s fuel system. They are designed to allow for the periodic removal of sediment, water, and other impurities that may accumulate in the fuel tank. By providing a means to drain these contaminants, fuel drain tubes help maintain fuel quality and protect the integrity of the fuel system components, such as filters and injectors ².

Purpose and Role in Truck Operation

The Cummins 3958923 Fuel Drain Tube serves a specific function within the fuel system of commercial trucks. It enables the efficient management of fuel quality by allowing operators to remove impurities that could otherwise lead to engine performance issues or damage. This component contributes to the overall performance of the truck by ensuring that the engine receives clean fuel, which is vital for optimal combustion and efficiency ³.

Key Features

The Cummins 3958923 Fuel Drain Tube is characterized by several design elements that enhance its functionality. It is constructed from durable materials that can withstand the corrosive nature of fuel and the pressures within the fuel system. The tube is designed for easy access and operation, allowing for straightforward draining procedures. Additionally, it may incorporate features such as filters or strainers to capture larger particles before they enter the drain system.

Benefits

The use of the Cummins 3958923 Fuel Drain Tube offers several advantages. It improves fuel filtration by providing a means to remove contaminants that standard fuel filters may not capture. This leads to reduced maintenance requirements, as cleaner fuel results in less frequent filter changes and lower risk of engine damage. Furthermore, the tube enhances system reliability by preventing the buildup of water and sediment, which can cause corrosion and blockages within the fuel system.

Troubleshooting and Maintenance

Common issues with fuel drain tubes may include blockages, leaks, or malfunctions due to wear and tear. Troubleshooting steps involve checking for obstructions, ensuring proper installation, and inspecting for signs of damage or corrosion. Maintenance practices include regular draining of the fuel system to remove accumulated contaminants, inspecting the tube for wear, and replacing it as necessary to prevent potential problems and maintain system integrity.

Cummins Overview

Cummins Inc. is a well-established manufacturer in the automotive industry, known for its high-quality components for commercial vehicles. With a history of innovation and a strong reputation for reliability, Cummins is committed to producing parts that meet the demanding requirements of commercial truck operations. The company’s dedication to quality and performance is evident in its wide range of products, including the Cummins 3958923 Fuel Drain Tube.

Cummins Fuel Drain Tube (Part 3958923) Compatibility

The Cummins Fuel Drain Tube, identified by part number 3958923, is designed to facilitate the removal of water and sediment from the fuel system. This part is engineered to ensure the smooth operation of the engine by preventing contaminants from entering the fuel lines and potentially causing damage.

ISB CM850

The ISB CM850 engine is one of the models compatible with the Fuel Drain Tube 3958923. This engine is known for its robust performance and reliability, often used in various industrial and commercial applications. The fuel drain tube in this engine ensures that any water or sediment present in the fuel is effectively removed, maintaining the engine’s efficiency and longevity.

QSB6.7 CM850 (CM2850)

The QSB6.7 CM850 (CM2850) engine also utilizes the Cummins Fuel Drain Tube 3958923. This engine variant is designed for applications requiring high power output and durability. The fuel drain tube in this engine is crucial for maintaining the fuel system’s cleanliness, which is essential for the engine’s optimal performance. By ensuring that contaminants are removed, the fuel drain tube helps in preventing potential issues such as engine stalling or reduced fuel efficiency.

Grouping for Efficiency

Both the ISB CM850 and QSB6.7 CM850 (CM2850) engines benefit from the use of the same fuel drain tube, 3958923. This commonality allows for easier inventory management and maintenance, as the same part can be used across different engine models. This design choice by Cummins not only simplifies the maintenance process but also ensures that the same high standards of quality and performance are maintained across their engine lineup.

Role of Part 3958923 Fuel Drain Tube in Engine Systems

The part 3958923 Fuel Drain Tube is an essential component in the fuel system of an engine, facilitating the safe and efficient management of fuel flow. This component is integrated into the fuel plumbing network, where it plays a significant role in ensuring the system’s integrity and performance.

In the fuel system, the Fuel Drain Tube is positioned to allow for the controlled release of fuel from the system. This is particularly important during maintenance procedures or when the system needs to be purged of contaminants. The tube is connected to various points within the fuel plumbing, such as the fuel tank, fuel lines, and fuel filter housing.

When connected to the fuel tank, the Fuel Drain Tube provides a pathway for fuel to be drained out, which is necessary for tank inspections or replacements. Similarly, when attached to the fuel lines, it allows for the isolation of specific sections of the plumbing for repair or replacement without the need to drain the entire system.

The integration of the Fuel Drain Tube with the fuel filter housing is also noteworthy. By allowing fuel to be drained from the housing, it ensures that the filter can be serviced or replaced without the risk of fuel spillage, enhancing safety and efficiency during maintenance operations.

Overall, the Fuel Drain Tube is a vital element in the fuel system, contributing to the seamless operation and maintenance of engine systems by providing a controlled means of fuel drainage.

Conclusion

The Cummins 3958923 Fuel Drain Tube is a critical component in the maintenance and operation of commercial truck fuel systems. By facilitating the removal of contaminants and water, it ensures that the fuel delivered to the engine is clean and of high quality. This part contributes to the efficiency, reliability, and longevity of the truck’s fuel system, making it an essential element for operators and maintenance personnel.