3966130
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3966130 Fuel Supply Tube is a critical component in the fuel delivery system of heavy-duty trucks. It ensures the consistent transfer of fuel from the tank to the engine, contributing to optimal performance and efficiency. This part is essential for the reliable operation of the vehicle’s fuel system.

Purpose and Function

This Cummins part plays a significant role in the fuel delivery system by providing a direct pathway for fuel to travel from the tank to the engine. It ensures that the engine receives a steady and uninterrupted supply of fuel, which is necessary for consistent engine performance. The tube is engineered to withstand the pressures and conditions within the fuel system, maintaining the integrity of the fuel supply under various operating conditions ¹.

Key Features

The 3966130 is characterized by its robust design and the quality materials used in its construction. It is made from durable materials that resist corrosion and wear, ensuring longevity and reliable performance. The tube’s design includes features that enhance its ability to maintain a secure connection within the fuel system, reducing the risk of leaks and ensuring efficient fuel delivery ².

Benefits

Utilizing the 3966130 offers several advantages. It contributes to improved fuel efficiency by ensuring a consistent fuel supply, which can lead to better overall engine performance. The tube’s durable construction and reliable operation enhance the longevity of the fuel system, reducing the need for frequent replacements or repairs. Additionally, its design supports the system’s reliability, minimizing the risk of fuel delivery issues ³.

Installation Process

Installing the Fuel Supply Tube requires careful attention to ensure a proper fit and secure connection within the fuel system. The process involves disconnecting the old tube, cleaning the connection points, and attaching the new tube using the appropriate tools and equipment. It is important to follow manufacturer guidelines to ensure the tube is correctly installed and functions as intended within the system.

Common Issues and Troubleshooting

Issues with the 3966130 may include leaks or blockages, which can affect the fuel delivery to the engine. Troubleshooting these problems involves inspecting the tube and connections for signs of wear or damage, and addressing any issues promptly to restore the fuel system’s integrity. Regular maintenance and inspections can help identify potential problems before they lead to significant issues.

Maintenance Tips

To keep the 3966130 in optimal condition, regular maintenance is recommended. This includes periodic inspections for signs of wear, corrosion, or damage, and cleaning the tube and connections as necessary. Following the manufacturer’s maintenance schedule and guidelines can help ensure the tube remains in good working condition, contributing to the overall efficiency and reliability of the fuel system.

Safety Considerations

When working with the 3966130, it is important to observe safety practices related to fuel handling and system pressure. This includes ensuring the fuel system is depressurized before beginning any work, using appropriate personal protective equipment, and following all safety guidelines to prevent accidents or injuries.

Cummins Overview

Cummins Inc. is a well-established manufacturer with a history of producing high-quality automotive components, particularly for heavy-duty trucks. The company is known for its commitment to innovation, quality, and reliability, making it a trusted name in the industry for those seeking durable and efficient parts for their vehicles.

Compatibility

The Fuel Supply Tube part number 3966130 is designed to fit a variety of engine models. Here is a detailed breakdown of its compatibility:

ISC Series Engines

• ISC CM2150: Ensures proper fuel delivery to the engine, maintaining optimal performance.
• ISC CM850: Fits the part 3966130, crucial for the efficient operation of the engine.

ISL Series Engines

• ISL CM2150: Utilizes the part 3966130, essential for the fuel system’s integrity.
• ISL9 CM2150 SN: Compatible with the part 3966130, ensuring the engine receives the correct fuel flow.

QSC and QSL Series Engines

• QSC8.3 CM850 (CM2850): Compatible with the part 3966130, critical for maintaining the engine’s fuel delivery system.
• QSL8.9 CM2150 L141: Fits the part 3966130, essential for ensuring the engine operates smoothly.
• QSL9 CM850 (CM2850): Compatible with the part 3966130, vital for the engine’s fuel system.

Role in Engine Systems

The 3966130 is an integral component in the fuel delivery system of various engine setups. Its primary function is to transport fuel from the fuel tank to the engine’s fuel injection system or carburetor, ensuring a consistent and reliable fuel supply.

Integration with Plumbing Components

When integrating the Fuel Supply Tube with the engine’s plumbing system, it connects to the fuel tank at one end and to the fuel filter or directly to the fuel injection system at the other. This connection is vital for maintaining the integrity of the fuel line, preventing leaks, and ensuring that fuel is delivered under the correct pressure and flow rate. The tube is often secured in place using clamps or brackets, which are part of the engine’s plumbing setup, to withstand the vibrations and movements inherent in engine operation.

Interaction with the Fuel Filter

The Fuel Supply Tube also plays a significant role in the filtration process of the fuel system. It is typically connected to the fuel filter, which is designed to remove impurities and contaminants from the fuel before it reaches the engine. The tube must be compatible with the filter’s connection points to ensure a secure and leak-free seal. This interaction is essential for maintaining the cleanliness of the fuel, which directly impacts engine performance and longevity.

Conclusion

In summary, the Fuel Supply Tube (part 3966130) is a key component that facilitates the smooth and efficient transfer of fuel within the engine system, working in conjunction with plumbing components and the fuel filter to ensure optimal engine function.