4939242
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4939242 Fuel Supply Line is a component designed for use in commercial trucks. It plays a role in the fuel delivery system, ensuring that fuel is transported efficiently from the tank to the engine. This part is integral to maintaining the operational efficiency and reliability of the vehicle.

Basic Concepts of Fuel Supply Lines

A fuel supply line is a conduit that facilitates the transfer of fuel from the storage tank to the engine. Its function is vital in the fuel system, as it ensures a consistent and reliable flow of fuel, which is necessary for the engine’s combustion process. The line operates under pressure, regulated by the fuel pump, to deliver fuel at the required rate and pressure for optimal engine performance ¹.

Purpose of the Cummins 4939242 Fuel Supply Line

The Cummins 4939242 Fuel Supply Line is designed to play a role in the truck’s fuel delivery system by providing a secure and efficient pathway for fuel to travel from the tank to the engine. It ensures that the engine receives a steady supply of fuel, which is important for consistent performance and power output. The line is engineered to withstand the pressures and conditions within the fuel system, contributing to the overall reliability of the truck’s operation.

Key Features

The Cummins 4939242 Fuel Supply Line is characterized by several key features that enhance its performance and durability. It is constructed from materials that are resistant to the corrosive effects of fuel and the high pressures within the system. The design includes reinforced sections to prevent kinking and ensure a smooth flow of fuel. Additionally, the line may feature connectors that are specifically engineered to provide a secure and leak-free connection to other components in the fuel system.

Benefits

The use of the Cummins 4939242 Fuel Supply Line can lead to improved fuel efficiency, as it ensures that fuel is delivered to the engine without unnecessary loss or leakage. This can result in enhanced engine performance, as the engine receives a consistent and clean supply of fuel. Furthermore, the line’s robust construction and design contribute to increased reliability, allowing the truck to operate effectively in various conditions.

Installation and Compatibility

Proper installation of the Cummins 4939242 Fuel Supply Line is important to ensure its effective function within the truck’s fuel system. Installation procedures should follow manufacturer guidelines to ensure a secure and effective fit. Specific requirements may include the use of compatible fittings and the correct routing of the line to avoid damage or interference with other components.

Maintenance and Troubleshooting

Routine maintenance of the Cummins 4939242 Fuel Supply Line involves inspection for signs of wear, damage, or leaks. Common issues to watch for include cracks, abrasions, or loose connections. Troubleshooting tips may include checking for proper line routing, ensuring connections are tight, and verifying that the line is free from obstructions that could impede fuel flow.

Safety Considerations

When working with the Cummins 4939242 Fuel Supply Line, it is important to follow safety precautions and best practices. This includes wearing appropriate personal protective equipment, ensuring proper ventilation when working with fuel, and having safety equipment on hand in case of spills or leaks. Emergency response protocols should be in place to address any incidents involving fuel.

Environmental Impact

The Cummins 4939242 Fuel Supply Line contributes to reducing emissions and conserving fuel by ensuring efficient fuel delivery to the engine. This can lead to lower fuel consumption and reduced emissions, promoting more sustainable transportation practices. The design and materials used in the line are also considered in terms of their environmental impact, with efforts to minimize waste and use recyclable materials where possible ².

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions solutions. With a history of innovation and quality, Cummins is committed to providing reliable and efficient products for the commercial truck industry. The company’s product offerings are designed to meet the demanding requirements of commercial applications, with a focus on performance, durability, and environmental responsibility.

Cummins Engine Compatibility with Fuel Supply Line Part 4939242

The Cummins Fuel Supply Line part number 4939242 is designed to fit seamlessly with several engine models, ensuring optimal fuel delivery and performance. This part is integral to the engine’s fuel system, facilitating the transfer of fuel from the tank to the engine.

ISB6.7 CM2250 and ISB6.7 CM2350 B101

The ISB6.7 CM2250 and ISB6.7 CM2350 B101 engines both benefit from the precise engineering of the 4939242 fuel supply line. This part ensures that the engines receive a consistent and reliable fuel supply, which is important for maintaining performance and efficiency. The compatibility of this fuel supply line with these engines underscores its versatility and importance in the engine’s overall operation.

QSB6.7 CM2250

Similarly, the QSB6.7 CM2250 engine is designed to work with the 4939242 fuel supply line. This engine, like its counterparts, relies on the integrity of the fuel supply line to deliver fuel efficiently and effectively. The use of this part in the QSB6.7 CM2250 ensures that the engine operates smoothly, with minimal disruptions in fuel flow.

By integrating the 4939242 fuel supply line into these engines, Cummins ensures that the fuel system is robust and reliable, contributing to the overall performance and longevity of the engines.

Role of Part 4939242 Fuel Supply Line in Engine Systems

The 4939242 Fuel Supply Line is an important component in the fuel delivery system of an engine. It is responsible for transporting fuel from the fuel tank to the fuel injectors or carburetor, ensuring a consistent and reliable fuel supply for combustion.

Integration with Fuel System Components

1. Fuel Tank: The Fuel Supply Line connects directly to the fuel tank, where it draws fuel through a fuel pump. This connection is typically secured with a fitting that ensures a leak-free seal.

2. Fuel Pump: Positioned either inside the fuel tank or along the Fuel Supply Line, the fuel pump pressurizes the fuel, allowing it to flow through the line toward the engine. The Fuel Supply Line must be robust enough to withstand the pressure exerted by the fuel pump.

3. Fuel Filter: Before reaching the engine, the fuel passes through a fuel filter. The Fuel Supply Line connects to both sides of the fuel filter, ensuring that contaminants are removed from the fuel before it reaches the engine components.

4. Fuel Rail: In fuel-injected engines, the Fuel Supply Line delivers fuel to the fuel rail, a distribution manifold that supplies fuel to each injector. The connection between the Fuel Supply Line and the fuel rail is important for maintaining fuel pressure and distribution efficiency.

5. Fuel Injectors: The Fuel Supply Line indirectly supports the operation of fuel injectors by ensuring a steady fuel flow. Each injector is supplied with pressurized fuel via the fuel rail, allowing for precise fuel delivery into the combustion chamber.

6. Carburetor: In carbureted engines, the Fuel Supply Line delivers fuel to the carburetor, where it is mixed with air before entering the combustion chamber. The connection must be secure to prevent fuel leaks and ensure proper fuel-air mixture.

Interaction with Plumbing Components

1. Fittings and Connectors: The Fuel Supply Line utilizes various fittings and connectors to interface with other components in the fuel system. These include barbed fittings, quick-connect couplings, and threaded connectors, each designed to create a secure and leak-free connection.

2. Hoses and Tubing: The Fuel Supply Line may incorporate sections of flexible hose or rigid tubing to navigate the engine compartment. These materials must be compatible with fuel to prevent degradation and ensure longevity.

3. Clamps and Fasteners: To secure the Fuel Supply Line in place and maintain integrity under engine vibrations, clamps and fasteners are employed. These components ensure that the Fuel Supply Line remains firmly attached throughout the engine’s operation.

By understanding the role and integration of the 4939242 Fuel Supply Line within these systems, engineers and mechanics can ensure optimal performance and reliability of the engine’s fuel delivery system.

Conclusion

The Cummins 4939242 Fuel Supply Line is a critical component in the fuel delivery system of commercial trucks, ensuring efficient and reliable fuel transport from the tank to the engine. Its robust design, compatibility with various Cummins engines, and integration with fuel system components contribute to the overall performance and reliability of the vehicle. Proper installation, maintenance, and adherence to safety protocols are essential to maximize the benefits of this part.