3689169
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3689169 Fuel Supply Tube is a component designed for use in the fuel systems of heavy-duty trucks. Its primary role is to facilitate the transfer of fuel from the tank to the engine, ensuring a consistent and reliable fuel supply that is vital for the operation of the vehicle ¹.

Purpose and Function

This part plays a role in the fuel system by delivering fuel from the tank to the engine. It is integral to maintaining the efficiency and performance of the truck’s fuel system. By providing a direct and unobstructed pathway for fuel, it helps ensure that the engine receives the necessary fuel volume and pressure to operate effectively ².

Key Features

The Cummins 3689169 is constructed with materials that offer durability and resistance to the corrosive effects of fuel. Its design includes features that enhance its performance, such as precise engineering to maintain fuel flow integrity and compatibility with high-pressure fuel systems. The tube’s construction is tailored to withstand the rigors of heavy-duty truck operation, ensuring longevity and reliability ³.

Benefits

Utilizing this Cummins part offers several advantages. It contributes to improved fuel delivery, which can lead to enhanced engine performance. The tube’s reliable design supports the overall efficiency of the fuel system, potentially leading to better fuel economy and reduced maintenance needs ⁴.

Installation and Compatibility

Proper installation of the Fuel Supply Tube is important to ensure it functions as intended. It is designed to be compatible with specific Cummins engine models, and it is important to follow manufacturer guidelines to ensure correct fitting and operation within the truck’s fuel system.

Maintenance and Troubleshooting

Regular maintenance of the Fuel Supply Tube is recommended to ensure its efficient operation and longevity. 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.

Safety Considerations

When handling and installing the Fuel Supply Tube, it is important to observe safety practices. This includes working in a well-ventilated area, avoiding smoking or open flames near fuel systems, and wearing appropriate personal protective equipment. Additionally, ensuring the fuel system is depressurized before beginning any work is a critical safety step.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has established a reputation for quality and innovation in the automotive industry, particularly in the production of diesel engines and components. The company’s commitment to excellence is reflected in its wide range of products, which are designed to meet the demanding requirements of various applications, including heavy-duty trucking.

Cummins Engine Compatibility with Fuel Supply Tube Part 3689169

The Cummins Fuel Supply Tube part number 3689169 is a component in the fuel delivery system for several of their engine models. This part is designed to ensure a reliable and efficient transfer of fuel from the fuel tank to the engine, maintaining optimal performance and fuel efficiency.

ISX15 Series Engines

The ISX15 CM2250 SN and ISX15 CM2350 X101 engines are part of the ISX15 series, which is known for its robust performance and reliability. The Fuel Supply Tube part 3689169 fits seamlessly into these engines, ensuring that the fuel supply remains uninterrupted and consistent.

QSX15 Series Engines

Similarly, the QSX15 CM2250 and QSX15 CM2350 X105 engines, which belong to the QSX15 series, also utilize the Cummins Fuel Supply Tube part 3689169. This part is engineered to fit perfectly within the fuel delivery system of these engines, ensuring that the fuel supply is maintained at the required pressure and flow rate.

X15 Series Engine

The X15 CM2350 X116B engine, part of the X15 series, also benefits from the use of the Cummins Fuel Supply Tube part 3689169. This part is designed to integrate flawlessly with the fuel system of this engine, providing a reliable and efficient fuel supply.

Overall, the Cummins Fuel Supply Tube part 3689169 is a versatile and essential component that is compatible with a range of Cummins engine models. Its design ensures that it fits perfectly within the fuel delivery systems of these engines, providing a reliable and efficient fuel supply that is crucial for maintaining optimal engine performance.

Role of Part 3689169 Fuel Supply Tube in Engine Systems

The part 3689169 Fuel Supply Tube is an integral component within the fuel system, facilitating the seamless transfer of fuel from the fuel tank to various engine components. Its primary function is to ensure a consistent and reliable supply of fuel, which is essential for the engine’s performance and efficiency.

Integration with the Fuel Filter

The Fuel Supply Tube connects to the fuel filter, which plays a vital role in removing impurities and contaminants from the fuel before it reaches the engine. This connection ensures that only clean fuel passes through, protecting the engine from potential damage caused by debris or particles.

Connection to the Fuel Primer

In systems equipped with a fuel primer, the Fuel Supply Tube is linked to this component as well. The fuel primer is used to purge air from the fuel lines and ensure that the fuel system is properly pressurized before engine start-up. This connection is essential for maintaining the integrity of the fuel supply and ensuring that the engine receives the necessary fuel pressure for optimal operation.

Role within the Overall Fuel System

Within the broader fuel system, the Fuel Supply Tube works in conjunction with fuel pumps, injectors, and regulators to maintain a balanced and efficient fuel delivery system. It ensures that fuel is delivered at the correct pressure and flow rate, which is critical for the engine’s combustion process.

The consistent fuel supply provided by the Fuel Supply Tube allows the engine to operate smoothly, enhancing both performance and fuel efficiency. Additionally, it helps in reducing the risk of fuel starvation, which can lead to engine misfires or stalling.

Conclusion

In summary, the part 3689169 Fuel Supply Tube is a key component that ensures the reliable and efficient delivery of fuel throughout the engine system, contributing to the overall performance and longevity of the engine.