3009846
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3009846 Fuel Supply Tube is a component designed for use in the fuel systems of heavy-duty trucks. Its purpose is to facilitate the delivery of fuel from the tank to the engine, ensuring that the engine receives a consistent and reliable supply of fuel for combustion. This component is integral to the efficient operation of diesel engines, contributing to their performance and longevity ¹.

Basic Concepts of Fuel Supply Tubes

A fuel supply tube is a conduit within the fuel system that transports fuel from the tank to the engine. It plays a role in maintaining the pressure and flow rate necessary for optimal engine performance. In diesel engines, the fuel supply tube ensures that fuel is delivered at the correct pressure and volume, which is crucial for the engine’s combustion process and overall efficiency ².

Purpose of the Cummins 3009846 Fuel Supply Tube

The Cummins 3009846 Fuel Supply Tube is specifically designed to ensure a consistent flow of fuel to the engine. It connects various components within the fuel system, allowing for the uninterrupted transfer of fuel. This tube helps maintain the required fuel pressure and flow, which are vital for the engine’s combustion process and overall performance.

Key Features

The Cummins 3009846 Fuel Supply Tube is constructed from durable materials that are resistant to the corrosive effects of diesel fuel. Its design includes features that enhance its performance and longevity, such as reinforced connections and a smooth interior to reduce flow resistance. These attributes contribute to the tube’s reliability and efficiency within the fuel system.

Benefits of Using the Cummins 3009846 Fuel Supply Tube

Utilizing the Cummins 3009846 Fuel Supply Tube offers several advantages. It contributes to improved fuel efficiency by ensuring a consistent and reliable fuel flow. The tube’s durable construction and design elements enhance its reliability and longevity, reducing the need for frequent replacements. Additionally, its compatibility with Cummins engines ensures optimal performance and integration within the fuel system.

Installation and Integration

Installing the Cummins 3009846 Fuel Supply Tube requires careful consideration of the fuel system’s layout and components. It is important to follow manufacturer guidelines for installation to ensure proper integration. Tools such as wrenches and sealants may be necessary to secure connections and prevent leaks. Proper installation is key to maintaining the fuel system’s integrity and efficiency.

Common Issues and Troubleshooting

Typical problems that may arise with the Cummins 3009846 Fuel Supply Tube include leaks and blockages. Leaks can occur at connections or due to material degradation, while blockages may result from debris or fuel contaminants. Troubleshooting methods include inspecting connections for tightness, checking for signs of wear or damage, and ensuring the fuel system is clean and free of contaminants.

Maintenance Tips

To ensure the optimal performance of the Cummins 3009846 Fuel Supply Tube, regular maintenance is recommended. This includes inspecting the tube and its connections for signs of wear, leaks, or blockages. Cleaning the fuel system to remove contaminants and replacing the tube if significant wear or damage is detected are also important maintenance practices. Adhering to these tips helps maintain the efficiency and reliability of the fuel system.

Cummins Company 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 and heavy-duty truck industries. The company’s product range includes engines, powertrains, and related components, all designed to meet the demanding requirements of various applications.

Cummins Fuel Supply Tube (Part 3009846) Compatibility

The Cummins Fuel Supply Tube, part number 3009846, is designed to fit seamlessly within a range of engine models, ensuring optimal fuel delivery and engine performance. This part is integral to the fuel system, facilitating the transfer of fuel from the fuel tank to the engine’s fuel injection system.

N14 Mechanical Engines

In the N14 Mechanical engines, the Fuel Supply Tube (3009846) is a critical component that connects the fuel tank to the fuel injection pump. This tube ensures a steady and uninterrupted flow of fuel, which is essential for maintaining engine efficiency and performance. Proper installation and maintenance of this part are crucial to prevent fuel leaks and ensure the engine operates smoothly.

NH/NT 855 Engines

For the NH/NT 855 engines, the Fuel Supply Tube (3009846) serves a similar purpose, connecting the fuel tank to the fuel injection system. Given the robust design of these engines, the fuel supply tube must be able to withstand high pressures and temperatures. This part is engineered to meet these demands, ensuring reliable fuel delivery and contributing to the overall durability and efficiency of the engine.

Installation and Maintenance

While the specific installation procedures may vary between engine models, the general approach to fitting the Fuel Supply Tube (3009846) remains consistent. It is essential to follow the manufacturer’s guidelines to ensure the tube is correctly aligned and securely fastened. Regular inspections and maintenance checks are recommended to detect any signs of wear or damage, which could compromise the fuel system’s integrity.

Role of Part 3009846 Fuel Supply Tube in Engine Systems

The part 3009846 Fuel Supply Tube is an essential component in the fuel delivery system of various engine setups. It is responsible for transporting fuel from the fuel tank to the fuel injection system or carburetor, ensuring a consistent and reliable fuel supply to the engine.

Integration with Fuel System Components

1. Fuel Tank: The Fuel Supply Tube connects directly to the fuel tank, where it draws fuel through a pickup tube. This connection is typically secured with a fitting that prevents leaks and ensures a tight seal.

2. Fuel Filter: Before reaching the engine, the fuel passes through a fuel filter. The Fuel Supply Tube is designed to connect to the inlet side of the fuel filter, allowing clean, debris-free fuel to proceed further into the system.

3. Fuel Pump: In systems equipped with an electric fuel pump, the Fuel Supply Tube is connected to the pump’s outlet. This setup ensures that pressurized fuel is delivered efficiently to the engine components.

4. Fuel Rail or Carburetor: The tube extends from the fuel filter or pump to the fuel rail in fuel-injected engines or directly to the carburetor in older engine designs. This connection point is critical for distributing fuel to the injectors or carburetor jets.

5. Plumbing and Routing: The Fuel Supply Tube is often routed through the engine bay, necessitating careful planning to avoid heat sources and moving parts. Proper insulation and secure mounting are essential to maintain the integrity of the fuel line.

6. Connections and Fittings: Various fittings and connectors are used to join the Fuel Supply Tube to other components. These may include barbed fittings, quick-connect couplings, and flare fittings, depending on the specific application and manufacturer’s design.

Functional Aspects

• Pressure Regulation: The Fuel Supply Tube works in conjunction with the fuel pressure regulator to maintain the correct pressure levels within the fuel system. This ensures optimal engine performance and fuel efficiency.

• Thermal Expansion: The material of the Fuel Supply Tube is chosen to withstand thermal expansion and contraction, which occur due to the heat generated in the engine compartment. This prevents leaks and maintains a consistent fuel flow.

• Emission Control: By ensuring a steady and clean fuel supply, the Fuel Supply Tube indirectly supports the engine’s emission control systems, helping to meet regulatory standards for pollutants.

Conclusion

In summary, the part 3009846 Fuel Supply Tube is a vital link in the fuel delivery chain, interacting with multiple components to ensure the engine receives the precise amount of fuel needed for efficient operation. Its durable construction, reliable performance, and seamless integration with Cummins engines make it an essential component for maintaining engine efficiency and longevity.