3649426
Fuel Supply Tube
Cummins®

The Cummins 3649426 Fuel Supply Tube is a critical component in the fuel delivery system of commercial trucks. It ensures efficient transfer of fuel from the tank to the engine, contributing to the vehicle’s performance and reliability.

Purpose and Function

The Fuel Supply Tube facilitates the transfer of fuel within the truck’s fuel delivery system, ensuring a consistent and reliable flow necessary for the engine’s combustion process. It connects the fuel tank to the engine’s fuel injection system, maintaining the required pressure and flow rate for optimal engine performance ¹.

Key Features

Constructed from durable materials resistant to fuel corrosion, the Fuel Supply Tube includes reinforced connections and a smooth interior to reduce flow resistance. It is engineered to withstand high pressures and temperatures, ensuring reliable operation under various conditions ².

Benefits

Using the Fuel Supply Tube offers advantages such as improved fuel efficiency through consistent fuel flow, increased longevity due to durable construction, and enhanced reliability of the fuel delivery system ³.

Installation and Compatibility

Proper installation involves securing the tube with appropriate fittings and ensuring tight connections to prevent leaks. It is compatible with specific Cummins engine models, and verifying compatibility before installation is crucial. The process may require standard tools and additional components for a secure fit.

Maintenance and Troubleshooting

Regular maintenance includes checking for wear or damage and ensuring secure connections. Common issues like fuel leaks or decreased fuel flow can often be addressed by inspecting the tube and connections. Routine checks help identify potential problems before they escalate.

Safety Considerations

Following safety practices when handling and installing the Fuel Supply Tube is important to avoid fuel leaks and ensure proper system pressure. This includes working in a well-ventilated area, using correct tools, and adhering to manufacturer guidelines for installation and maintenance.

Environmental Impact

The efficient design of the Fuel Supply Tube contributes to reduced fuel consumption and lower emissions by ensuring a consistent and reliable fuel flow, optimizing engine performance, and aligning with environmental regulations and standards.

Cummins Overview

Cummins Inc. is renowned for its quality and innovation in diesel engines. The company’s commitment to producing reliable and efficient engine components, including the Fuel Supply Tube, ensures optimal performance and reliability in various applications.

Cummins Engine Compatibility with Fuel Supply Tube Part 3649426

The Fuel Supply Tube part number 3649426 is designed for specific Cummins engines, ensuring optimal fuel delivery and engine performance. It is compatible with:

• QSK50 CM2150 K107
• QSK50 CM2150 MCRS

For the QSK50 CM2150 K107 engine, the Fuel Supply Tube ensures efficient fuel delivery, maintaining necessary pressure and flow rates. For the QSK50 CM2150 MCRS engine, it guarantees a reliable connection between fuel supply components, contributing to engine efficiency and durability.

Role of Part 3649426 Fuel Supply Tube in Engine Systems

The Fuel Supply Tube is vital in the fuel delivery system, transporting fuel from the tank to the engine’s fuel filter and injectors or carburetor. In fuel-injected engines, it ensures a consistent and pressurized flow to the fuel filter, which then delivers clean fuel to the injectors for combustion. In carbureted engines, it delivers fuel to the carburetor for mixing with air before combustion.

Conclusion

The Cummins 3649426 Fuel Supply Tube is a crucial component in the fuel delivery system of commercial trucks. Its durable construction, efficient design, and compatibility with specific Cummins engines ensure reliable and consistent fuel delivery, contributing to engine performance, fuel efficiency, and environmental sustainability.