3693900
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3693900 Fuel Supply Tube is a critical component in the fuel system of heavy-duty trucks, ensuring efficient and reliable fuel delivery from the tank to the engine ¹. This part is essential for maintaining the performance and efficiency of the vehicle, contributing significantly to the overall functionality of the truck’s powertrain.

Purpose and Function

The primary role of the Cummins 3693900 Fuel Supply Tube is to facilitate the transfer of fuel from the storage tank to the engine ². Positioned within the fuel system, it provides a direct and unobstructed pathway for fuel flow, ensuring the engine receives a consistent supply of fuel necessary for combustion and power generation. Its function is vital for the smooth operation of the truck.

Key Features

The Cummins 3693900 Fuel Supply Tube is designed to meet the demanding requirements of heavy-duty applications ³. Constructed from durable materials resistant to fuel corrosion, it features a precise internal diameter to maintain fuel flow efficiency and robust connections for a secure fit within the fuel system.

Benefits

This Cummins part offers several advantages, including improved fuel efficiency by ensuring a steady and uninterrupted fuel supply to the engine ⁴. Its reliable construction supports the longevity of the fuel system, reducing the likelihood of failures. Additionally, its design enhances the overall reliability of the truck’s fuel delivery system, leading to consistent engine performance.

Installation and Compatibility

Proper installation of the Cummins 3693900 Fuel Supply Tube is crucial for its effective operation ⁵. It should be fitted according to the manufacturer’s guidelines to ensure it is correctly integrated into the truck’s fuel system. This component is designed to be compatible with specific Cummins engine models, ensuring a precise fit and function within the intended applications.

Maintenance and Troubleshooting

Regular maintenance of the Cummins 3693900 Fuel Supply Tube is recommended to preserve its function and longevity ⁶. This includes checking for signs of wear or damage and ensuring all connections are secure. Common issues may include fuel leaks or reduced fuel flow, which can often be addressed by inspecting and tightening connections or replacing worn components as necessary.

Safety Considerations

When handling and working with the Cummins 3693900 Fuel Supply Tube, it is important to follow safety protocols to prevent fuel leaks and ensure safe operation ⁷. This includes working in a well-ventilated area, using appropriate personal protective equipment, and adhering to all manufacturer-recommended safety practices during installation, maintenance, and troubleshooting procedures.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and related technologies ⁸. With a strong reputation in the automotive and heavy-duty truck industry, Cummins is known for its commitment to quality, innovation, and customer satisfaction. The company’s extensive product range and technical expertise make it a trusted partner for those in need of reliable and high-performance power solutions.

Compatibility with Engine Models

The Cummins Fuel Supply Tube part number 3693900 is designed to fit seamlessly with several engine models, ensuring optimal fuel delivery and engine performance. This part is engineered to meet the specific requirements of the following Cummins engines:

X12 CM2350

The X12 CM2350 engine is a robust and reliable power unit, often utilized in heavy-duty applications. The Fuel Supply Tube 3693900 is meticulously crafted to integrate with the X12 CM2350, providing a secure and efficient fuel pathway. This ensures that the engine receives the necessary fuel supply to maintain its operational efficiency and longevity.

X119B

The X119B engine is another high-performance model in the Cummins lineup, known for its durability and power. The Fuel Supply Tube 3693900 is specifically designed to fit the X119B, ensuring that the fuel supply is uninterrupted and consistent. This compatibility is crucial for maintaining the engine’s performance and reliability, especially in demanding environments.

Grouping of Engines

While the X12 CM2350 and X119B engines are distinct models, they share a common requirement for a reliable fuel supply system. The Fuel Supply Tube 3693900 is engineered to meet these needs, providing a seamless fit and ensuring that both engines operate at their best. This part’s design takes into account the unique specifications of each engine, ensuring that it functions effectively within the engine’s overall system.

Role in Engine Systems

The 3693900 Fuel Supply Tube is an essential component in the fuel system, facilitating the smooth and efficient delivery of fuel from the fuel tank to the engine ⁹. This tube is engineered to withstand the pressures and temperatures associated with fuel transport, ensuring a reliable fuel supply.

Integration with the Primer System

In systems equipped with a primer, the Fuel Supply Tube plays a significant role. The primer is used to fill the fuel lines with fuel and purge any air that may have entered the system. This is particularly important during the initial start-up of the engine or after the fuel system has been serviced. The Fuel Supply Tube ensures that the primed fuel is efficiently delivered to the engine, allowing for a quicker and more reliable start.

Function within the Fuel System

Within the broader fuel system, the 3693900 Fuel Supply Tube connects to various components such as the fuel pump, fuel filter, and fuel injectors. Its primary function is to maintain a consistent flow of fuel under varying engine loads and operating conditions. The tube is designed to handle the dynamic pressures generated by the fuel pump and to deliver fuel at the precise moment it is needed by the engine.

The Fuel Supply Tube also interfaces with the fuel regulator, which maintains the correct fuel pressure within the system. This ensures that the fuel injectors receive a consistent supply of fuel, optimizing combustion efficiency and engine performance.

Conclusion

In summary, the Cummins 3693900 Fuel Supply Tube is a vital link in the fuel delivery chain, ensuring that the engine receives a steady and reliable supply of fuel for optimal operation. Its design, compatibility with specific engine models, and role within the fuel system make it an indispensable component for the performance and efficiency of heavy-duty trucks.