4937406
Fuel Supply Tube
Cummins®

The Cummins Fuel Supply Tube, part number 4937406, is a component designed to facilitate the transfer of fuel from the tank to the engine in heavy-duty trucks. This part is integral to the fuel delivery system, ensuring that the engine receives a consistent and reliable supply of fuel, which is vital for optimal performance and efficiency ¹.

Purpose and Function

This Cummins part plays a role in the fuel system by providing a conduit for fuel to travel from the tank to the engine. It is engineered to withstand the pressures and temperatures associated with fuel transfer, ensuring that fuel is delivered efficiently and without interruption. Consistent fuel delivery is important for maintaining engine performance, as fluctuations or interruptions can lead to inefficient combustion and reduced power output ⁴.

Key Features

The Fuel Supply Tube 4937406 is constructed from materials that offer durability and resistance to the corrosive effects of fuel. Its design includes features that enhance its performance and reliability, such as reinforced connections and a smooth interior to minimize flow resistance. These attributes contribute to the tube’s ability to deliver fuel consistently under various operating conditions ².

Benefits

The use of the Fuel Supply Tube 4937406 can lead to improved fuel efficiency, as it ensures that fuel is delivered to the engine in a steady stream, reducing the likelihood of fuel starvation or over-fueling. Additionally, the tube’s design reduces the risk of fuel leaks, which can be hazardous and lead to increased maintenance costs. Enhanced engine performance is another benefit, as a reliable fuel supply contributes to consistent power output and engine longevity ³.

Installation and Compatibility

Proper installation of the Fuel Supply Tube is important to ensure its effectiveness and longevity. This involves following manufacturer guidelines for securing the tube in place and ensuring all connections are tight and secure. The tube is designed to be compatible with a range of Cummins engine models, and it may also fit other truck makes and models, depending on the specific fuel system configuration.

Maintenance and Troubleshooting

Regular maintenance of the Fuel Supply Tube is important to ensure its continued efficiency and reliability. This includes checking for signs of wear or damage, such as cracks or leaks, and replacing the tube if necessary. Common issues that may arise include fuel leaks or blockages, which can often be resolved by inspecting and cleaning the tube or its connections.

Safety Considerations

When handling and working with the Fuel Supply Tube, it is important to follow safety guidelines to avoid fuel spills and ensure personal safety. This includes wearing appropriate personal protective equipment and having emergency procedures in place in case of fuel leaks. Proper handling and storage of the tube are also important to prevent damage and ensure its longevity.

Environmental Impact

The use of a high-quality Fuel Supply Tube, such as the 4937406 by Cummins, can contribute to reduced fuel consumption and lower emissions. Efficient fuel delivery systems play a role in promoting sustainable trucking operations by ensuring that fuel is used effectively and minimizing waste. This not only benefits the environment but can also lead to cost savings for operators ⁴.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes diesel and natural gas engines, as well as related technologies. With a history of innovation and a commitment to quality, Cummins serves a variety of industries, including transportation, construction, and power generation. The company is known for its approach to customer service and its dedication to developing products that meet the evolving needs of its customers.

Application in Cummins Engines

• 4B3.9 Series: The 4937406 Fuel Supply Tube is integral to the 4B3.9 engine series, facilitating the transfer of fuel from the tank to the engine. This ensures that the engine receives the necessary fuel to operate smoothly and efficiently.

• Group Compatibility: The part is compatible with a range of Cummins engines, including but not limited to the 4B3.9 series. Its design allows it to fit seamlessly into the fuel delivery systems of these engines, ensuring a secure and reliable connection.

• Durability and Performance: The 4937406 Fuel Supply Tube is engineered to withstand the rigors of engine operation, providing durability and reliability. This is crucial for maintaining the performance of the engine over time.

• Installation and Maintenance: Proper installation of the 4937406 Fuel Supply Tube is essential for the efficient operation of the engine. Regular maintenance checks should be performed to ensure that the tube is free from leaks and damage, which could affect fuel delivery and engine performance.

Role of Part 4937406 Fuel Supply Tube in Engine Systems

The Fuel Supply Tube is an essential component in the fuel delivery system of various engine setups. It facilitates the seamless transfer of fuel from the fuel tank to the fuel pump, ensuring a consistent and reliable fuel supply to the engine.

Integration with Fuel Pump

In engine systems, the Fuel Supply Tube connects directly to the fuel pump. This connection is vital for the pump to draw fuel efficiently from the tank. The tube’s design allows for a steady flow of fuel, minimizing any disruptions that could affect the pump’s performance. This consistent fuel flow is necessary for the pump to maintain optimal pressure levels, which are essential for the engine’s combustion process.

Coordination with Fuel Transfer System

The Fuel Supply Tube also plays a significant role in the fuel transfer system. It acts as a conduit that ensures fuel is transferred smoothly from the tank to the pump. This is particularly important in systems where fuel is transferred between multiple tanks or in setups requiring precise fuel management. The tube’s robust construction and precise fitting help prevent leaks and ensure that fuel is delivered without contamination, maintaining the integrity of the fuel supply.

Ensuring System Efficiency

By providing a reliable pathway for fuel, the Fuel Supply Tube contributes to the overall efficiency of the engine system. It helps in maintaining the correct fuel pressure and flow rate, which are essential for the engine to operate smoothly. This component is designed to withstand the pressures and temperatures within the fuel system, ensuring long-lasting performance and reliability.

Conclusion

In summary, the Fuel Supply Tube 4937406 is a key element in the fuel delivery process, working in tandem with the fuel pump and transfer system to ensure a consistent and efficient fuel supply to the engine. Its robust construction, precise fitting, and reliable performance make it an essential component for maintaining the efficiency and longevity of Cummins engines.