4937155
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4937155 Fuel Supply Tube is a component designed for use in the fuel systems of heavy-duty trucks. Its purpose is to facilitate the delivery of fuel from the tank to the engine, ensuring a consistent and reliable fuel supply that is vital for the engine’s operation ¹.

Basic Concepts of Fuel Supply Tubes

A fuel supply tube is a conduit within the fuel system that transports fuel from the tank to the engine. It plays a role in maintaining the fuel pressure required for efficient engine performance. The tube’s design and material are selected to withstand the pressures and temperatures encountered in the fuel system, contributing to the overall reliability and efficiency of the truck’s engine ².

Purpose of the Cummins 4937155 Fuel Supply Tube

This Cummins part is engineered to ensure a steady flow of fuel to the engine. It connects to the fuel tank and routes fuel to the engine’s fuel injection system. The tube’s design helps maintain fuel pressure and prevents fuel starvation, which is important for consistent engine performance.

Key Features

The Fuel Supply Tube is constructed from materials that offer resistance to corrosion and wear, enhancing its durability. Its design includes features that ensure a secure connection to other fuel system components, reducing the risk of leaks. The tube is also designed to accommodate the specific fuel flow requirements of Cummins engines, contributing to efficient fuel delivery.

Benefits

This part provides several advantages, including improved fuel efficiency due to its precise fuel delivery capabilities. Its robust construction contributes to the reliability of the fuel system, and its design promotes longevity, reducing the need for frequent replacements.

Installation and Integration

Installing the Fuel Supply Tube involves connecting it to the fuel tank and the engine’s fuel injection system. It is important to follow manufacturer guidelines for installation to ensure proper fit and function. Tools required may include wrenches and possibly a fuel system cleaner to prepare the connections.

Troubleshooting Common Issues

Common issues with fuel supply tubes can include leaks or blockages. Diagnosing these problems may involve inspecting the tube for signs of wear or damage and checking connections for tightness. Resolving issues typically involves repairing or replacing the affected section of the tube.

Maintenance Tips

To maintain the Fuel Supply Tube, regular inspections for signs of wear or damage are recommended. Cleaning the tube and its connections can help prevent blockages. Following the manufacturer’s maintenance schedule will help ensure the tube continues to function effectively.

Safety Considerations

When working with the fuel supply system, it is important to handle fuel with care due to its flammable nature. Awareness of potential hazards, such as fuel spills or leaks, is necessary to maintain a safe working environment. Proper ventilation and the use of protective equipment are advised when performing maintenance or repairs on the fuel system.

Cummins 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 quality, Cummins is recognized for its diesel engines and related components, including the 4937155 Fuel Supply Tube, which is part of its commitment to providing reliable and efficient power solutions for various industries.

Cummins Engine Compatibility with Fuel Supply Tube Part 4937155

The Cummins Fuel Supply Tube part number 4937155 is designed to fit seamlessly into various engine models, ensuring optimal fuel delivery and performance. This part is engineered to meet the specific needs of the engines it supports, providing a reliable and efficient fuel supply system.

QSB4.5 CM850 (CM2850) and QSB6.7 CM850 (CM2850)

The QSB4.5 CM850 (CM2850) and QSB6.7 CM850 (CM2850) engines share a common fuel system architecture, making the installation of the Fuel Supply Tube part 4937155 straightforward and consistent across both models. This part is crucial for maintaining the integrity of the fuel delivery system, ensuring that the engines receive the precise fuel mixture required for optimal operation.

QSB7 CM2880 B117

The QSB7 CM2880 B117 engine, while part of the Cummins QSB series, features a distinct fuel system design compared to the QSB4.5 and QSB6.7 models. Despite these differences, the Fuel Supply Tube part 4937155 is engineered to fit this engine model as well. This compatibility ensures that the fuel supply tube can be easily integrated into the QSB7 CM2880 B117, providing the necessary fuel flow for efficient engine performance.

By ensuring that the Fuel Supply Tube part 4937155 is compatible with these specific engine models, Cummins maintains a high standard of quality and reliability in their engine components. This compatibility allows for easier maintenance and repair, as technicians can use the same part across multiple engine models, reducing inventory needs and simplifying the repair process.

Role of Part 4937155 Fuel Supply Tube in Engine Systems

The 4937155 Fuel Supply Tube is an integral component in the fuel delivery system of various engine setups. It works in conjunction with several other components to ensure efficient and reliable fuel delivery to the engine.

Integration with Plumbing

In the context of engine plumbing, the 4937155 Fuel Supply Tube serves as a vital conduit. It connects the fuel tank to the fuel filter and subsequently to the fuel injectors or carburetor. This tube is responsible for transporting fuel under pressure from the tank to the engine components that require it. The tube’s design ensures minimal fuel loss and maintains consistent fuel pressure throughout the system. Its placement within the plumbing network is carefully engineered to avoid sharp bends or kinks, which could impede fuel flow or cause leaks.

Interaction with Fuel Filter

The Fuel Supply Tube also plays a significant role when interfacing with the fuel filter. Positioned between the fuel tank and the filter, the tube delivers raw fuel to the filter. The fuel filter’s job is to remove impurities and contaminants from the fuel before it reaches the engine’s combustion chambers. The 4937155 Fuel Supply Tube must be securely connected to the fuel filter to prevent any fuel leaks and to ensure a smooth transition of fuel from the tank to the filter. This connection is often reinforced with clamps or specialized fittings to maintain integrity under varying fuel pressures and temperatures.

By effectively linking these components, the 4937155 Fuel Supply Tube contributes to the overall efficiency and reliability of the fuel delivery system, ensuring that the engine receives clean, pressurized fuel for optimal performance.

Conclusion

The Cummins 4937155 Fuel Supply Tube is a critical component in the fuel delivery system of heavy-duty trucks, ensuring a consistent and reliable fuel supply to the engine. Its design and construction contribute to the efficiency and reliability of the fuel system, providing benefits such as improved fuel efficiency and reduced maintenance needs. Proper installation, maintenance, and safety considerations are essential for the optimal performance of this part.