3691512
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3691512 Fuel Supply Tube is a component designed for use in the fuel systems of commercial trucks. Its purpose is to facilitate the transfer of fuel from the tank to the engine, ensuring that the engine receives a consistent and reliable supply of fuel for combustion ¹.

Basic Concepts of Fuel Supply Tubes

A Fuel Supply Tube is a conduit within the fuel system that delivers fuel from the tank to the engine. It operates by maintaining a continuous flow of fuel under pressure, which is crucial for the engine’s operation. The tube must be capable of withstanding the pressures and temperatures within the fuel system while remaining resistant to corrosion and wear ².

Purpose of the Cummins 3691512 Fuel Supply Tube

This Cummins part plays a role in the operation of a truck by ensuring a consistent fuel supply to the engine. It is designed to handle the specific demands of commercial truck engines, which require a reliable and efficient fuel delivery system to maintain performance and efficiency ³.

Key Features

The Cummins 3691512 Fuel Supply Tube is constructed from materials that offer durability and resistance to the elements within the fuel system. Its design includes features that enhance its performance, such as precise engineering to ensure a proper fit and function within the fuel system. The tube may also incorporate elements that reduce the risk of leaks and improve the overall efficiency of fuel delivery.

Benefits

This part provides several advantages, including improved fuel delivery efficiency. Its durable construction ensures longevity and reliability in various operating conditions, which is vital for the demanding environments in which commercial trucks often operate.

Installation Considerations

When installing the Cummins 3691512 Fuel Supply Tube, it is important to follow guidelines and best practices to ensure proper function and safety. This may include specific requirements or recommendations from Cummins regarding the installation process, such as torque specifications for fittings and the use of appropriate sealants.

Maintenance and Troubleshooting

Routine maintenance of the Cummins 3691512 Fuel Supply Tube is important to ensure its continued reliable operation. This may involve periodic inspections for signs of wear or damage, and addressing any issues such as leaks or blockages promptly to prevent more significant problems.

Compatibility and Application

This Cummins part is designed for use in specific types of trucks and engines. It is important to verify compatibility with the particular make and model of the truck to ensure proper fit and function.

Safety Considerations

When working with the Cummins 3691512 Fuel Supply Tube, it is important to observe safety practices and precautions. This includes proper handling of fuel, adherence to installation procedures, and awareness of the potential hazards associated with fuel systems.

Cummins Overview

Cummins Inc. is a manufacturer of diesel engines and related technologies, with a history of innovation and quality in the industry. The company’s development and production of components like the 3691512 Fuel Supply Tube reflect its commitment to providing reliable and efficient solutions for the commercial truck market.

Compatibility Summary

The Cummins Fuel Supply Tube part number 3691512 is engineered to fit the following engines:

• ISX15 CM2350 X101
• X15 CM2350 X116B
• X15 CM2450 X134B

By ensuring a proper fit and function, this part helps maintain the integrity and performance of these engines, providing a dependable solution for fuel supply needs.

Role of Part 3691512 Fuel Supply Tube in Engine Systems

The Part 3691512 Fuel Supply Tube is an integral component within the fuel system, facilitating the seamless transfer of fuel from the fuel tank to the engine’s fuel injection system. 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 Primer

In systems equipped with a primer, the Fuel Supply Tube works in conjunction to enhance the fuel delivery process. The primer, often a small pump or valve, is used to build up fuel pressure within the system before engine start-up. The Fuel Supply Tube channels the pressurized fuel from the primer to the fuel injectors, ensuring that the engine receives an immediate and adequate fuel supply upon ignition. This collaboration is particularly important in cold starts or in systems where fuel delivery needs to be optimized for performance.

Contribution to the Fuel System

Within the broader fuel system, the Fuel Supply Tube is a vital link between the fuel tank and the fuel injectors. It is responsible for transporting fuel under pressure, ensuring that the injectors receive a steady flow of fuel to atomize and inject into the combustion chamber. The tube’s design and material are selected to withstand the pressures and temperatures within the fuel system, ensuring durability and reliability.

The Fuel Supply Tube also plays a role in maintaining the integrity of the fuel as it travels from the tank to the injectors. It is designed to prevent fuel leaks and to resist corrosion from the fuel it carries, which is essential for the safety and efficiency of the fuel system. Additionally, the tube’s path is carefully routed to avoid interference with other engine components and to minimize the risk of damage from heat or mechanical stress.

Conclusion

In summary, the Part 3691512 Fuel Supply Tube is a key component that ensures the efficient and reliable operation of the fuel system. Its integration with the primer and its role within the fuel system underscore its importance in maintaining engine performance and fuel delivery efficiency.