3966320
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3966320 Fuel Supply Tube is a critical component in the fuel systems of heavy-duty trucks. Its primary function is to transport fuel from the tank to the engine, ensuring a consistent and reliable fuel supply. This component is essential for maintaining the performance and efficiency of the vehicle’s engine.

Purpose and Function

This Cummins part facilitates the delivery of fuel from the tank to the engine. It ensures that fuel is supplied under consistent pressure and flow, which is vital for the engine’s combustion process. By maintaining a steady fuel supply, the tube contributes to the engine’s overall performance and efficiency ¹.

Key Features

The 3966320 Fuel Supply Tube is constructed from durable materials that are resistant to the corrosive effects of fuel. Its design includes features that enhance its longevity and reliability, such as reinforced connections and a robust structure. These attributes ensure that the tube can withstand the demanding conditions of heavy-duty truck operations ².

Benefits

Utilizing the 3966320 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 also enhance the longevity of the fuel system, reducing the need for frequent replacements or repairs ³.

Installation and Compatibility

Proper installation of the 3966320 involves following manufacturer guidelines to ensure a secure and leak-free connection. This may require specific tools and additional components, depending on the truck model and engine type. Ensuring compatibility with the vehicle’s fuel system is crucial for optimal performance.

Maintenance and Troubleshooting

Regular maintenance of the 3966320 includes inspecting for signs of wear or damage and ensuring all connections are secure. Common issues may include leaks or blockages, which can be addressed by cleaning or replacing the tube as necessary. Adhering to a maintenance schedule helps ensure the tube’s efficiency and longevity.

Safety Considerations

When working with the 3966320, it is important to observe safety practices. This includes handling fuel with care to avoid spills and ensuring that the fuel system is properly pressurized. Following safety guidelines helps prevent accidents and ensures the safe operation of the vehicle.

Environmental Impact

The efficient design of the 3966320 contributes to reduced fuel consumption and lower emissions. By ensuring a consistent fuel supply, the tube helps the engine operate more efficiently, aligning with environmental standards and regulations aimed at reducing the carbon footprint of heavy-duty trucks.

Cummins Corporation Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history of innovation and a commitment to sustainability, Cummins serves customers in approximately 190 countries and territories, providing reliable and efficient solutions for the diesel engine and components industry.

Cummins Fuel Supply Tube Part 3966320 Compatibility

The Cummins part number 3966320, known as the Fuel Supply Tube, is designed to fit a variety of Cummins engine models. This part is crucial for maintaining the integrity of the fuel delivery system, ensuring that fuel is efficiently and safely transported from the fuel tank to the engine.

ISC Series Engines

The Fuel Supply Tube part 3966320 is compatible with several ISC series engines, including:

• ISC CM2150
• ISC CM850
• ISC8.3 CM2250

These engines are known for their robust performance and reliability, often used in heavy-duty applications.

ISL Series Engines

The part also fits various ISL series engines, such as:

• ISL CM2150
• ISL9 CM2150 SN
• ISL9 CM2250
• ISL9.5 CM2880 L138

These engines are typically found in a range of applications, from construction equipment to power generation units.

QSC and QSL Series Engines

The Fuel Supply Tube part 3966320 is also compatible with the following QSC and QSL series engines:

• QSC8.3 CM850 (CM2850)
• QSC9 CM2250 / QSL9 CM2250
• QSL8.9 CM2150 L141
• QSL9 CM2250
• QSL9 CM2350 L102
• QSL9 CM850 (CM2850)

These engines are often used in agricultural and industrial applications, known for their durability and efficiency.

Summary

The Cummins Fuel Supply Tube part 3966320 is a versatile component that fits a wide range of Cummins engines, including the ISC, ISL, QSC, and QSL series. Ensuring the proper fitment of this part is essential for maintaining the performance and reliability of these engines.

Role of Part 3966320 Fuel Supply Tube in Engine Systems

The part 3966320 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 transfer pump, ensuring a consistent and reliable fuel supply to the engine.

Integration with Fuel Transfer Pump

The Fuel Supply Tube connects directly to the fuel transfer pump, which is tasked with moving fuel from the tank to the engine’s high-pressure fuel pump. This tube ensures that fuel is delivered under the correct pressure and flow rate, which is vital for the efficient operation of the fuel transfer pump. The secure fitting of the Fuel Supply Tube to the pump prevents fuel leaks and maintains system integrity.

Ensuring Consistent Fuel Delivery

By providing a dedicated pathway for fuel, the Fuel Supply Tube helps maintain a steady fuel supply, which is essential for the consistent performance of the engine. This component works in harmony with the fuel transfer pump to ensure that the engine receives the precise amount of fuel needed for optimal combustion, thereby supporting overall engine efficiency and performance.

Conclusion

The Cummins 3966320 Fuel Supply Tube is a vital component in the fuel systems of heavy-duty trucks, ensuring a consistent and reliable fuel supply to the engine. Its durable construction, compatibility with various Cummins engines, and role in maintaining engine performance and efficiency make it an essential part of the fuel delivery system.