4927499
Injector Fuel Supply Tube
Cummins®

The Cummins Injector Fuel Supply Tube, part number 4927499, is a component designed to facilitate the delivery of fuel to the injectors in diesel engines. Fuel supply tubes are integral to the fuel system, ensuring that fuel is transported efficiently from the fuel tank to the injectors, where it is atomized and combusted to produce power.

Basic Concepts of Injector Fuel Supply Tubes

An Injector Fuel Supply Tube is a conduit within the fuel system that carries fuel from the fuel pump to the injectors. Its function is to provide a consistent and pressurized flow of fuel, which is essential for the injectors to operate correctly. The supply tube is part of a system that includes the fuel tank, fuel pump, filters, and injectors, all working together to deliver fuel under precise conditions for combustion ¹.

Purpose of the Cummins Injector Fuel Supply Tube

The Cummins Injector Fuel Supply Tube plays a specific role in the operation of a truck’s engine by ensuring that fuel is delivered to the injectors under the correct pressure and at the right time. This consistent delivery is vital for the injectors to atomize the fuel properly, which in turn affects the combustion process and the overall performance of the engine.

Key Features

The Cummins Injector Fuel Supply Tube is constructed from high-quality materials that are resistant to the corrosive effects of diesel fuel. Its design includes features that enhance its durability and performance, such as reinforced connections and a smooth interior to reduce flow resistance. These characteristics contribute to the tube’s ability to withstand the high pressures and temperatures within the fuel system.

Benefits

Using the Cummins Injector Fuel Supply Tube can lead to improved fuel efficiency, as it ensures that fuel is delivered to the injectors with minimal loss of pressure. This can result in more complete combustion and better engine performance. Additionally, the tube’s robust construction and design contribute to increased reliability and longevity of the fuel system components.

Installation Process

Installing the Cummins Injector Fuel Supply Tube requires careful attention to detail. The process involves disconnecting the old tube, ensuring the fuel system is depressurized, and then fitting the new tube with the appropriate tools. Safety precautions, such as wearing protective gear and working in a well-ventilated area, should be observed throughout the installation.

Troubleshooting Common Issues

Common issues with the Cummins Injector Fuel Supply Tube may include leaks or blockages. To troubleshoot these problems, one should inspect the tube for signs of wear or damage, check the connections for tightness, and ensure that there are no obstructions in the fuel path. Addressing these issues promptly can prevent more significant problems within the fuel system.

Maintenance Tips

To ensure the longevity and optimal performance of the Cummins Injector Fuel Supply Tube, regular maintenance is recommended. This includes periodic inspections for signs of wear or corrosion, cleaning the tube to remove any deposits, and replacing it according to the manufacturer’s guidelines or as part of routine engine servicing.

Cummins: A Brief 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 a commitment to quality, Cummins has established a strong reputation in the commercial truck industry. The company’s product range includes a variety of engine components, all designed to meet the demanding requirements of heavy-duty applications.

Cummins Injector Fuel Supply Tube (Part 4927499) Compatibility

The Cummins Injector Fuel Supply Tube (Part 4927499) is a component in the fuel delivery system of certain Cummins engines. This part ensures the efficient and reliable transfer of fuel from the fuel pump to the injectors, which is essential for the engine’s performance and longevity.

Compatibility with Specific Engine Models

QSK38 Engines

• QSK38 CM2150 MCRS
• QSK38 CM850 MCRS

QSK50 Engines

• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108

Importance of the Injector Fuel Supply Tube

The injector fuel supply tube is a critical component in the fuel delivery system of these engines. It ensures that fuel is delivered to the injectors at the correct pressure and flow rate, which is essential for the engine’s performance and efficiency. Any issues with the fuel supply tube can lead to engine performance problems, reduced efficiency, and potential damage to the engine over time.

Ensuring Compatibility and Performance

When replacing or maintaining the injector fuel supply tube in any of the listed engine models, it is crucial to use the correct part number (4927499) to ensure compatibility and performance. This part is specifically designed to fit the QSK38 and QSK50 series engines, providing a reliable and efficient fuel delivery system.

Role of Part 4927499 Injector Fuel Supply Tube in Engine Systems

The Cummins Injector Fuel Supply Tube, identified by part number 4927499, is an integral component in the fuel delivery system of an engine. It is responsible for channeling pressurized fuel from the fuel supply plumbing to the injectors. This ensures a consistent and reliable fuel supply to the combustion chambers.

Integration with Key Engine Components

1. Fuel Plumbing and Fuel Supply Plumbing: The Injector Fuel Supply Tube is a vital link in the fuel delivery chain. It connects the high-pressure fuel supply plumbing to the injectors, ensuring that fuel is delivered at the precise pressure and volume required for optimal engine performance.

2. Cylinder Head: Positioned above the cylinder head, the Injector Fuel Supply Tube delivers fuel directly to the injectors mounted on the cylinder head. This proximity ensures minimal fuel line resistance and maintains fuel pressure integrity.

3. Camshaft and Gear, Camshaft Cover: While the camshaft and its associated components primarily deal with the timing of valve operation, the Injector Fuel Supply Tube works in harmony to ensure that fuel injection is synchronized with the engine’s combustion cycle. The camshaft cover protects these timing components and provides a sealed environment, which is essential for the precise operation of the fuel injection system.

4. Connecting Rod and Piston: The efficient operation of the connecting rod and piston assembly relies on precise fuel delivery. The Injector Fuel Supply Tube ensures that the injectors receive fuel at the correct pressure and timing, allowing for optimal combustion and power delivery to the connecting rod and piston.

5. Performance Parts: In high-performance engine setups, the Injector Fuel Supply Tube plays a significant role. It must be capable of handling increased fuel flow rates and pressures without leaks or restrictions. This ensures that performance parts, such as upgraded injectors or fuel pumps, function correctly and deliver the expected performance gains.

Conclusion

The Cummins Injector Fuel Supply Tube (part 4927499) is a key component that ensures the reliable and efficient delivery of fuel to the engine’s injectors, supporting the overall performance and functionality of the engine system. Regular maintenance and proper installation are essential to ensure the longevity and optimal performance of this Cummins part.