4900524
Injector Fuel Supply Tube
Cummins®

Introduction

The Injector Fuel Supply Tube (4900524) from Cummins is a vital component in the fuel delivery system of heavy-duty trucks. This part ensures efficient engine performance by facilitating the precise delivery of fuel to the injectors. Its role is crucial in maintaining the overall functionality and reliability of the vehicle’s engine.

Basic Concepts of Injector Fuel Supply Tube

The Injector Fuel Supply Tube operates on fundamental principles within the fuel injection system. Its primary function is to deliver fuel from the fuel tank to the injectors under precise pressure and timing. This tube interacts with various components such as the fuel pump, filters, and injectors to ensure a consistent and clean fuel supply. The efficient operation of this tube is essential for the proper functioning of the fuel injection system ¹.

Purpose and Role in Truck Operation

The Injector Fuel Supply Tube (4900524) plays a significant role in the operation of heavy-duty trucks. It contributes to fuel efficiency by ensuring that fuel is delivered to the injectors in the correct quantity and at the right time. This precise fuel delivery enhances engine performance, allowing the truck to operate smoothly and efficiently. Additionally, the reliability of the fuel supply tube is paramount in maintaining the overall dependability of the vehicle ².

Key Features

The Injector Fuel Supply Tube (4900524) is designed with several key features that enhance its performance and durability. Constructed from high-quality materials, this tube is resistant to corrosion and wear, ensuring long-lasting use. Its design includes precise fittings and connections that facilitate easy installation and maintenance. The tube’s robust construction allows it to withstand the high pressures and temperatures within the fuel system ³.

Benefits

Using the Injector Fuel Supply Tube (4900524) in heavy-duty trucks offers several benefits. It provides improved fuel delivery, ensuring that the engine receives a consistent and clean fuel supply. This results in enhanced engine performance, with smoother operation and increased power. Additionally, the reliability of this tube contributes to the overall durability and longevity of the vehicle’s fuel system.

Troubleshooting and Maintenance

To maintain optimal performance, it is important to be aware of common issues related to the Injector Fuel Supply Tube (4900524). Symptoms of malfunction may include engine misfires, reduced power, or irregular fuel delivery. Diagnostic procedures should involve checking for leaks, blockages, or damage to the tube. Regular maintenance practices, such as inspecting connections and ensuring the tube is free from debris, are recommended to prevent issues and ensure longevity.

Installation and Replacement

Installing or replacing the Injector Fuel Supply Tube (4900524) requires careful attention to detail. Necessary tools include wrenches, fuel line disconnect tools, and possibly a fuel pressure tester. Precautions should be taken to relieve fuel system pressure before beginning work. Step-by-step instructions involve disconnecting the old tube, ensuring all connections are clean and free from debris, and installing the new tube with proper torque specifications. Following best practices ensures proper installation and functionality.

Cummins Overview

Cummins Inc. is a leader in the automotive industry, known for its commitment to innovation, quality, and customer satisfaction. With a rich history of producing reliable and high-performance engines and components, Cummins has established a strong reputation. The company’s product offerings include a wide range of engines, filtration systems, and aftermarket parts, all designed to meet the demanding needs of heavy-duty applications. Cummins’ dedication to excellence is evident in every product they manufacture, including the Injector Fuel Supply Tube (4900524).

Cummins Injector Fuel Supply Tube (Part 4900524) Compatibility

The Cummins Injector Fuel Supply Tube, identified by the part number 4900524, is a critical 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 maintaining optimal engine performance.

Engine Compatibility

The Injector Fuel Supply Tube (4900524) is specifically designed to fit the following Cummins engines:

• A1400 Series
• A1700 Series

This part is engineered to meet the stringent requirements of these engines, ensuring compatibility and reliability. The design and material of the tube are tailored to withstand the high pressures and temperatures associated with diesel engine operations, providing a durable and long-lasting solution.

Installation Considerations

When installing the Injector Fuel Supply Tube (4900524) in the A1400 and A1700 engines, it is important to follow proper installation procedures to ensure a secure and leak-free connection. This includes:

• Proper Alignment: Ensuring the tube is correctly aligned with the injector and fuel pump fittings to prevent misalignment and potential leaks.
• Secure Connections: Using the appropriate fittings and clamps to secure the tube in place, preventing any movement that could lead to fuel leaks or performance issues.
• Regular Inspection: Periodically inspecting the tube for signs of wear, damage, or leaks, and replacing it as necessary to maintain engine performance and reliability.

By adhering to these guidelines, the Injector Fuel Supply Tube (4900524) will function effectively within the A1400 and A1700 engines, contributing to the overall efficiency and longevity of the engine.

Role of Part 4900524 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, identified by part number 4900524, is an integral component in the fuel delivery system of an engine. Its primary function is to transport fuel from the fuel rail to the injectors, ensuring a consistent and reliable fuel supply for combustion.

Integration with Fuel System Components

1. Fuel Rail: The Injector Fuel Supply Tube connects directly to the fuel rail, which is a pressurized conduit that distributes fuel to each injector. This tube ensures that fuel is evenly distributed under pressure, maintaining optimal fuel delivery to all cylinders.

2. Fuel Injectors: Each injector is supplied with fuel through the Injector Fuel Supply Tube. The tube’s design allows for precise fuel metering, which is essential for achieving the correct air-fuel ratio necessary for efficient combustion.

3. Fuel Pump: While not directly connected, the fuel pump creates the pressure needed within the fuel rail. The Injector Fuel Supply Tube relies on this pressure to deliver fuel to the injectors effectively.

4. Fuel Filter: Positioned upstream in the fuel system, the fuel filter removes contaminants from the fuel before it reaches the Injector Fuel Supply Tube. This ensures that only clean fuel is delivered to the injectors, preventing clogging and ensuring smooth operation.

5. Fuel Return Line: In systems with a return line, excess fuel not used by the injectors is sent back to the fuel tank. The Injector Fuel Supply Tube operates within this closed-loop system, contributing to fuel efficiency by recycling unused fuel.

Plumbing Considerations

The Injector Fuel Supply Tube is part of the engine’s plumbing system, which includes all components responsible for fuel transport. Proper installation and maintenance of this tube are essential to prevent fuel leaks and ensure system integrity. The tube must be securely fastened to both the fuel rail and the injectors, with all connections sealed to prevent fuel escape.

Conclusion

In summary, the Injector Fuel Supply Tube (part 4900524) plays a significant role in the fuel delivery process, working in conjunction with the fuel rail, injectors, fuel pump, and fuel filter to ensure efficient and reliable engine performance. Proper maintenance and installation of this part are crucial for the optimal operation of heavy-duty engines.