4011829
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4011829 Fuel Supply Tube is a critical component in the fuel systems of heavy-duty trucks. It ensures a consistent and reliable fuel supply from the tank to the engine, which is essential for the engine’s efficiency and performance.

Purpose and Function

This Cummins part is integral to the fuel delivery system, transporting fuel from the tank to the engine. It ensures a steady and pressurized flow of fuel, which is vital for the engine’s combustion process and directly influences the truck’s performance and efficiency ¹.

Key Features

The Fuel Supply Tube is constructed from high-quality materials, typically metal or high-durability plastic, to withstand the demanding conditions within a heavy-duty truck’s fuel system. Its design includes reinforced connections and a smooth interior to minimize fuel flow resistance ².

Benefits

Using this Cummins part offers several advantages. It contributes to improved fuel efficiency by ensuring a consistent fuel supply, leading to better overall engine performance. The tube’s reliable construction also enhances the longevity of the fuel system, reducing the need for frequent replacements and maintenance ³.

Installation and Compatibility

Proper installation of the Fuel Supply Tube is crucial for its effective function. It is compatible with various Cummins engine models and can also be used with other truck makes and models, depending on the specific requirements. While some may attempt a DIY installation, it is generally recommended to have a professional perform this task to ensure correct fitting and function ⁴.

Maintenance and Troubleshooting

Regular maintenance of the Fuel Supply Tube is important to ensure optimal performance. This includes checking for leaks, inspecting for blockages, and ensuring all connections are secure. Common issues such as leaks or blockages can often be resolved through routine inspections and timely replacements, following recommended intervals ⁵.

Safety Considerations

When working with the Fuel Supply Tube, it is important to follow safety protocols. This includes proper handling and storage of fuel to prevent spills and contamination. Taking precautions to avoid fuel spills is crucial, as fuel is a flammable substance that requires careful management ⁶.

Compatibility with QSV81G and QSV91G Engines

The Fuel Supply Tube 4011829 is compatible with the following Cummins engines:

• QSV81G
• QSV91G

These engines are part of Cummins’ range of high-performance diesel engines, known for their durability and efficiency. The fuel supply tube is engineered to fit seamlessly within the fuel systems of these engines, ensuring optimal performance and reliability ⁷.

Installation and Functionality

When installed, the Fuel Supply Tube 4011829 connects the fuel tank to the fuel injection system, allowing for a steady and uninterrupted flow of fuel. This is crucial for maintaining engine performance and preventing issues such as fuel starvation or contamination ⁸.

Importance of Proper Fitment

Ensuring that the Fuel Supply Tube 4011829 is correctly installed is essential for the overall health of the engine. Any misalignment or improper fitment can lead to fuel leaks, reduced efficiency, and potential engine damage. Therefore, it is important to follow the manufacturer’s guidelines and specifications when installing this component ⁹.

Maintenance Considerations

Regular inspection and maintenance of the Fuel Supply Tube 4011829 are recommended to ensure its longevity and proper function. This includes checking for any signs of wear, corrosion, or damage, and replacing the part if necessary to prevent any potential issues with the engine’s fuel delivery system ¹⁰.

Role in Engine Systems

The Fuel Supply Tube is an integral component in the fuel delivery system of various engine setups. It facilitates the transfer of fuel from the gas pipes to the engine’s fuel control module. This tube ensures a consistent and regulated flow of fuel, which is essential for the engine’s performance and efficiency.

In systems where the gas module operates at 1.25 bar, the Fuel Supply Tube connects to the gas module, allowing it to receive a steady supply of fuel. This connection is vital for maintaining the module’s pressure requirements and ensuring optimal fuel delivery.

Similarly, in configurations with a gas module operating at 1.8 bar, the Fuel Supply Tube plays a key role in delivering fuel under the specified pressure conditions. This ensures that the module can function effectively within its designed parameters.

For modules operating at 3 bar, the Fuel Supply Tube is responsible for supplying fuel at higher pressure. This is particularly important in high-performance engines where precise fuel delivery is necessary to meet the engine’s demands.

The Fuel Supply Tube also interfaces with the fuel control module, which regulates the fuel flow based on the engine’s needs. This integration ensures that the engine receives the correct amount of fuel at all times, contributing to smooth operation and efficient combustion ¹¹.

Conclusion

The Cummins 4011829 Fuel Supply Tube is a fundamental component in the fuel delivery system, ensuring that fuel is supplied consistently and under the correct pressure to various modules within the engine system. Its reliable construction, compatibility with various engine models, and role in maintaining engine performance make it an essential part of heavy-duty truck fuel systems.