4055108
Fuel Shutoff Valve
Cummins®

Introduction

The Cummins 4055108 Fuel Shutoff Valve is a critical component in the fuel system of commercial trucks, designed to control the flow of fuel to the engine. This part ensures the operational integrity and safety of the truck’s engine system by enabling precise control over fuel delivery for starting, running, and stopping the engine under various conditions.

Basic Concepts of Fuel Shutoff Valves

A Fuel Shutoff Valve regulates the flow of fuel to an engine by opening and closing to allow or restrict fuel flow. This control is essential for safe and efficient engine operation, facilitating precise fuel delivery which is vital for engine performance, efficiency, and safety ¹.

Purpose of the Cummins 4055108 Fuel Shutoff Valve

This Cummins part is specifically designed to modulate fuel delivery to the engine in commercial trucks. Its function is crucial for starting the engine, maintaining operation, and facilitating a smooth shutdown, contributing to the engine’s performance, efficiency, and safety.

Key Features

The Cummins 4055108 Fuel Shutoff Valve is known for its robust design and high-quality materials, ensuring durability and reliability. Features include a precision-machined body, corrosion-resistant components, and a design that ensures a tight seal to prevent fuel leaks, enhancing its performance and reliability in demanding applications.

Benefits

This part offers improved engine control through precise modulation of fuel flow, contributing to better engine performance and efficiency. It incorporates enhanced safety features for secure operation and may also contribute to reduced emissions and improved fuel efficiency.

Installation and Integration

Proper installation of the Fuel Shutoff Valve within a truck’s fuel system is crucial for its effective operation. Guidelines include ensuring a secure fit, verifying tight connections to prevent leaks, and following manufacturer recommendations for integration with the engine’s control system. Precautions should be taken to avoid damage during installation.

Troubleshooting and Maintenance

Common issues with the Fuel Shutoff Valve may involve checking for leaks, ensuring proper operation, and verifying that the valve responds correctly to control signals. Diagnostic procedures can include visual inspections, testing for proper fuel flow, and checking electrical connections if applicable. Regular maintenance practices, such as cleaning and inspecting for wear, can help ensure optimal performance and longevity of the valve.

Safety Considerations

When working with the Cummins 4055108 Fuel Shutoff Valve, it is important to follow safety protocols. This includes handling the valve with care to avoid damage, being aware of potential hazards such as fuel leaks, and understanding emergency shutdown procedures. Proper training and adherence to safety guidelines are essential when performing maintenance or repairs on the fuel system.

Cummins Overview

Cummins Inc. is a global leader in designing, manufacturing, and distributing engines, filtration, and power generation products. With a history of innovation and a broad product range, Cummins has established a reputation for quality and reliability in the commercial truck industry. The company’s commitment to excellence is reflected in its products, including the Cummins 4055108 Fuel Shutoff Valve.

Compatibility

The Cummins Fuel Shutoff Valve 4055108 is designed to fit seamlessly with a variety of Cummins engines, ensuring reliable operation and maintenance. This valve is crucial for controlling the flow of fuel to the engine, providing a fail-safe mechanism to shut off fuel supply in case of emergency or malfunction.

Compatibility with Specific Engine Models

• 15N CM2380 M104B: This engine benefits from the valve’s precision and reliability, ensuring that fuel supply can be controlled with utmost accuracy.
• K19, K38, K50: These engines, commonly used in industrial settings, also rely on the valve’s quick response and dependable shutoff capability to maintain safety and efficiency.

Role of the Cummins 4055108 Fuel Shutoff Valve in Engine Systems

The 4055108 Fuel Shutoff Valve is an integral component within the fuel system of an engine, ensuring precise control over the fuel supply. This valve operates in conjunction with several key components to maintain efficient and safe engine performance.

Integration with Fuel System Components

• Fuel Transfer Pump: The Fuel Shutoff Valve works in tandem with the Fuel Transfer Pump to regulate the flow of fuel from the tank to the engine. When the valve is open, it allows the pump to draw fuel, ensuring a consistent supply to the engine. Conversely, when the valve is closed, it halts the fuel flow, which is essential for engine shutdown procedures or in emergency situations.
• Primer: In systems equipped with a primer, the Fuel Shutoff Valve ensures that the priming process is controlled. During priming, the valve allows fuel to pass through, filling the fuel lines and preparing the system for engine start-up. Once primed, the valve can be adjusted to maintain the desired fuel pressure.
• Pump: The valve interacts directly with the main fuel pump by controlling the fuel supply. This interaction is vital for maintaining the correct fuel pressure and flow rate, which are critical for optimal engine performance.

Coordination with Engine Accessories

• Accessories: Various engine accessories, such as fuel filters and sensors, rely on a stable and controlled fuel supply. The Fuel Shutoff Valve ensures that these accessories receive a consistent fuel flow, enhancing their efficiency and reliability.
• G.T. Starting System: For engines with a G.T. (glow plug) starting system, the Fuel Shutoff Valve plays a role in ensuring that fuel is available when needed during the start-up process. This is particularly important in cold-weather operations where precise fuel control can significantly impact starting efficiency.

Safety and Operational Control

The 4055108 Fuel Shutoff Valve is designed to provide operators with manual control over the fuel system. This allows for intentional shutdowns, emergency cut-offs, and maintenance procedures without the need for complex interventions. Its role in these operations underscores the importance of reliable fuel management in engine systems.

Conclusion

The Cummins 4055108 Fuel Shutoff Valve is a vital component in the fuel system of commercial trucks, offering precise control over fuel delivery to ensure engine performance, efficiency, and safety. Its robust design, compatibility with various Cummins engines, and integration with key fuel system components highlight its importance in maintaining reliable and safe engine operation.