3286420
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3286420 Fuel Supply Tube is a vital component in the fuel systems of heavy-duty trucks. It ensures the consistent transfer of fuel from the tank to the engine, maintaining performance and efficiency under varying operational conditions. This part is essential for the reliable operation of the engine’s fuel delivery system.

Purpose and Function

This Cummins part facilitates the transfer of fuel from the tank to the engine, ensuring a consistent pressure and flow rate. This consistent delivery is crucial for the engine’s combustion process, helping maintain performance and efficiency across different load conditions ¹.

Key Features

The Fuel Supply Tube is constructed from high-quality, corrosion-resistant materials, ensuring durability in demanding environments. It features secure connection types to prevent leaks and maintain a tight seal. Additionally, reinforced sections withstand high pressure, and flexible segments accommodate movement within the vehicle’s fuel system ².

Benefits

The 3286420 offers improved fuel efficiency through consistent fuel delivery, enhancing engine operation. Its durable construction reduces the likelihood of fuel system failures, and its compatibility with Cummins engines ensures seamless integration and optimal performance ³.

Installation and Compatibility

Proper installation of this part is crucial for a secure and leak-free connection. It is compatible with various Cummins engine models, ensuring it can be used in a wide range of heavy-duty truck applications. Following manufacturer guidelines during installation helps avoid common errors ⁴.

Maintenance and Troubleshooting

Regular maintenance of the Fuel Supply Tube is important for its longevity and performance. This includes periodic inspections for wear or damage, ensuring secure connections, and replacing the tube if necessary. Common issues such as leaks or reduced fuel flow can often be resolved through thorough inspection and maintenance practices.

Safety Considerations

When working with the Fuel Supply Tube, it is important to handle fuel system components with care to avoid spills and leaks. Ensuring proper ventilation during maintenance procedures and following all manufacturer safety guidelines are crucial. Additionally, using appropriate personal protective equipment (PPE) is recommended when performing maintenance on the fuel system.

Cummins Overview

Cummins Inc. is a leading manufacturer of diesel engines and related components for commercial vehicles. The company’s commitment to quality is evident in its wide range of products, including the 3286420 Fuel Supply Tube, designed to meet the demanding requirements of heavy-duty truck applications.

Cummins Fuel Supply Tube 3286420 Compatibility

The Cummins Fuel Supply Tube, part number 3286420, ensures a steady and efficient flow of fuel from the fuel pump to the engine’s fuel injectors. Its compatibility spans across several engine models, ensuring it can be utilized in a range of applications.

Engine Compatibility

• 6B5.9 Series

  • The 6B5.9 engine series benefits from the precision engineering of the 3286420. This part is designed to fit seamlessly within the engine’s architecture, providing a reliable conduit for fuel delivery.

• Other Cummins Engines

  • The 3286420 is also compatible with other Cummins engine models. Its design adheres to Cummins’ stringent quality standards, ensuring it can be used across various engine types without compromising performance.

Installation and Functionality

The installation of the 3286420 is straightforward, designed to integrate easily into the existing fuel system. Its robust construction ensures durability and resistance to wear and tear, which is crucial for maintaining optimal engine performance over time. This part is engineered to withstand the high pressures and temperatures typical in engine environments, ensuring a consistent and reliable fuel supply.

Role of Part 3286420 Fuel Supply Tube in Engine Systems

The 3286420 is an integral component in the fuel delivery system of an engine. Its primary function is to transport fuel from the fuel tank to the fuel filter and subsequently to the fuel injectors or carburetor.

Integration with Fuel Filter Plumbing

In the fuel filter plumbing system, the Fuel Supply Tube connects the fuel tank to the fuel filter. This connection ensures a continuous and unobstructed flow of fuel. The tube is designed to withstand the pressure variations within the fuel system, providing a reliable pathway for fuel to travel from the tank to the filter. The filter, in turn, removes impurities and contaminants from the fuel, ensuring that only clean fuel proceeds to the engine’s fuel injectors or carburetor.

Connection to Fuel Injectors or Carburetor

Post filtration, the Fuel Supply Tube plays a pivotal role in delivering the filtered fuel to the fuel injectors in fuel-injected engines or to the carburetor in carbureted engines. In fuel-injected systems, the tube connects to the fuel rail, which distributes fuel to individual injectors. Each injector then meters the precise amount of fuel required for combustion. In carbureted systems, the tube delivers fuel to the carburetor, where it is mixed with air before entering the combustion chamber.

Ensuring System Integrity

The Fuel Supply Tube is engineered to maintain the integrity of the fuel delivery system. It is constructed from materials resistant to fuel corrosion and capable of withstanding the operational pressures and temperatures within the engine compartment. This durability ensures that the fuel supply remains consistent, supporting optimal engine performance.

Role in Fuel Pressure Regulation

Additionally, the Fuel Supply Tube works in conjunction with the fuel pump and pressure regulator to maintain the correct fuel pressure within the system. Consistent fuel pressure is essential for the efficient operation of fuel injectors and carburetors, directly influencing engine performance and fuel efficiency.

Conclusion

The 3286420 Fuel Supply Tube is a key component in the fuel delivery system, facilitating the smooth and efficient transport of fuel from the tank to the engine’s combustion components. Its reliable performance is fundamental to the overall functionality and efficiency of the engine system.