4314403
Fuel Hose
Cummins®

The Cummins 4314403 Fuel Supply Hose is a component designed for use in commercial trucks. It facilitates the transport of fuel from the tank to the engine, ensuring a consistent and reliable fuel supply for efficient vehicle operation.

Basic Concepts of Fuel Supply Hoses

A fuel supply hose is a conduit within a truck’s fuel system that carries fuel from the storage tank to the engine. It must maintain a secure and leak-free path for fuel, withstanding the pressures and temperatures associated with fuel transport. The hose is typically made from materials resistant to fuel and environmental factors to ensure longevity and performance ¹.

Purpose of the Cummins 4314403 Fuel Supply Hose

This Cummins part is engineered to transport fuel efficiently from the tank to the engine in commercial trucks. It maintains the fuel system’s integrity by providing a durable and flexible connection that accommodates the movement and vibrations inherent in truck operation.

Key Features

The 4314403 boasts several key features that contribute to its effectiveness. It is constructed from materials that offer resistance to fuel and environmental degradation, ensuring durability. The hose is designed with flexibility in mind, allowing it to bend and twist without compromising the fuel flow. Additionally, it meets specific design specifications to fit seamlessly within Cummins engine systems.

Benefits

The use of this part offers several advantages. It contributes to improved fuel efficiency by providing a reliable fuel pathway that minimizes the risk of leaks. Its robust construction enhances the durability of the fuel system, and its design ensures compatibility with Cummins engines, promoting optimal performance.

Installation Considerations

When installing the 4314403, it is important to follow recommended practices to ensure a secure and efficient connection. This includes proper alignment with fuel system components, using the correct fittings, and avoiding over-tightening, which can damage the hose. Careful attention to these details helps prevent installation-related issues.

Troubleshooting Common Issues

Common issues with fuel supply hoses may include leaks, cracks, or blockages. To address these, one should inspect the hose regularly for signs of wear or damage. If a leak is detected, the hose should be replaced promptly to prevent fuel loss and potential safety hazards. Cracks may indicate material fatigue, and blockages could disrupt fuel flow, both of which require immediate attention.

Maintenance Tips

To maintain the 4314403, regular inspections are recommended to check for any signs of wear, cracking, or leaks. Cleaning the hose and its connections can prevent buildup that may lead to blockages. Adhering to a replacement schedule based on the manufacturer’s guidelines or upon detecting signs of degradation will help ensure the hose’s longevity and performance.

Safety Precautions

When working with the 4314403, it is important to observe safety precautions due to the flammable nature of fuel. This includes ensuring proper ventilation when working in enclosed spaces, wearing appropriate personal protective equipment, and following all safety guidelines provided by Cummins to prevent accidents and ensure a safe working environment.

About Cummins

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a rich history of innovation and quality, Cummins is committed to powering a more prosperous world. The company offers a wide range of products and services designed to meet the needs of customers in various industries, including commercial trucking, where reliability and performance are paramount.

Cummins Engine Compatibility with Fuel Supply Hose Part 4314403

The Cummins Fuel Supply Hose part number 4314403 is designed to be compatible with a range of Cummins engines, including the QSK19 CM2350 K105 and QSK19 CM2350 K114 models. This hose is a critical component in the engine’s fuel system, ensuring the efficient and reliable transfer of fuel from the fuel tank to the engine.

QSK19 CM2350 K105 and QSK19 CM2350 K114

Both the QSK19 CM2350 K105 and QSK19 CM2350 K114 engines are part of Cummins’ QSK19 series, which is known for its robust performance and reliability in various applications. The Fuel Supply Hose part 4314403 is engineered to fit seamlessly within the fuel system architecture of these engines, providing a secure and leak-proof connection. This ensures that the engine receives a consistent fuel supply, which is crucial for maintaining optimal performance and efficiency.

The hose is constructed from high-quality materials that can withstand the rigors of continuous use in demanding environments. Its design allows for flexibility and durability, making it suitable for the dynamic conditions these engines often operate under. Proper installation and maintenance of this hose are essential to prevent fuel leaks and ensure the longevity of the engine’s fuel system.

Role of Part 4314403 Fuel Supply Hose in Engine Systems

The 4314403 Fuel Supply Hose is an integral component in the fuel delivery system of an engine, ensuring a steady and reliable flow of fuel from the fuel tank to the engine’s fuel injectors or carburetor. This hose is designed to withstand the pressures and temperatures associated with fuel transport, providing a durable and leak-free connection.

Integration with Plumbing Components

In the context of engine plumbing, the 4314403 connects various components of the fuel system, including the fuel pump, fuel filter, and fuel rail. Its primary function is to deliver fuel under pressure from the fuel pump to the fuel injectors. This ensures that the engine receives a consistent supply of fuel, which is essential for optimal performance and efficiency ².

Connection to Fuel Drain System

The Fuel Supply Hose also plays a role in the fuel drain system. In scenarios where the fuel system needs to be purged or drained—such as during maintenance or when switching fuel types—the hose facilitates the process by providing a pathway for fuel to be safely and efficiently removed from the system. This is particularly important in preventing fuel contamination and ensuring that the engine operates on clean, uncontaminated fuel.

Ensuring System Integrity

By maintaining a secure and pressure-resistant connection between the fuel tank and the engine’s fuel delivery points, the 4314403 helps to prevent fuel leaks, which can be hazardous and lead to engine performance issues. Its robust construction and material properties are tailored to handle the specific demands of fuel transport, contributing to the overall reliability and safety of the engine system ³.

Conclusion

The Cummins 4314403 Fuel Supply Hose is a critical component in the fuel delivery system of commercial trucks, ensuring a consistent and reliable fuel supply. Its design, compatibility with Cummins engines, and role in maintaining system integrity highlight its importance in the efficient operation of commercial vehicles.