3929036
Engine Crankshaft
Cummins®

Introduction

The Fuel Injector Supply Tube, identified by part number 3929036, is a component manufactured by Cummins, a well-established name in the automotive and heavy-duty truck industry. This tube plays a significant role in the fuel system of heavy-duty trucks, facilitating the delivery of fuel to the injectors. Cummins is renowned for its commitment to producing high-quality components that enhance the performance and reliability of engines ¹.

Basic Concepts

Fuel injector supply tubes are integral to the fuel delivery system in heavy-duty trucks. They serve as conduits that transport fuel from the fuel rail to the injectors. The efficient operation of these tubes is vital for maintaining the precise fuel delivery required for optimal engine performance. By ensuring a consistent and reliable fuel supply, these tubes contribute to the overall efficiency and effectiveness of the fuel system ².

Purpose and Function

The 3929036 Fuel Injector Supply Tube is designed to deliver fuel to the injectors in a controlled and efficient manner. Its purpose is to maintain the integrity of the fuel delivery system by providing a secure and leak-free connection between the fuel rail and the injectors. This ensures that the engine receives the correct amount of fuel at the right time, which is crucial for maintaining engine performance and efficiency ³.

Key Features

The 3929036 Fuel Injector Supply Tube is constructed from high-quality materials that offer durability and resistance to the harsh conditions encountered in heavy-duty truck applications. Key features include a robust design that ensures a secure fit, precision engineering for accurate fuel delivery, and materials that resist corrosion and wear. These characteristics enhance the tube’s performance and longevity, making it a reliable component in the fuel system ¹.

Benefits

Utilizing the 3929036 Fuel Injector Supply Tube offers several benefits. It contributes to improved fuel efficiency by ensuring that fuel is delivered to the injectors with minimal loss or leakage. This precise fuel delivery helps enhance engine performance, providing consistent power and responsiveness. Additionally, the tube’s durable construction and reliable operation ensure that it can withstand the demanding conditions of heavy-duty truck use, offering reliability and peace of mind to operators ².

Installation and Compatibility

Proper installation of the 3929036 Fuel Injector Supply Tube is crucial for ensuring its effective operation. Installation procedures should follow manufacturer guidelines to ensure a secure and leak-free connection. Compatibility with Cummins engines is a key consideration, as the tube is designed to meet the specific requirements of these engines, ensuring optimal performance and reliability ³.

Maintenance and Troubleshooting

Routine maintenance of the 3929036 Fuel Injector Supply Tube is important for ensuring its continued reliable operation. This includes regular inspections for signs of wear, corrosion, or damage, and addressing any issues promptly to prevent potential failures. Common troubleshooting tips include checking for leaks at the connections, ensuring the tube is securely fitted, and verifying that there are no obstructions or blockages in the fuel delivery path ¹.

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 spanning over a century, Cummins has built a reputation for innovation, quality, and reliability. The company’s commitment to manufacturing high-quality automotive components is evident in its extensive range of products, which are designed to meet the demanding requirements of various industries, including heavy-duty trucking ¹.

Cummins Fuel Injector Supply Tube (Part 3929036) Compatibility

The Cummins Fuel Injector Supply Tube, identified by part number 3929036, is a critical component in the fuel delivery system of various Cummins engines. This part ensures the efficient and reliable transfer of fuel from the fuel pump to the fuel injectors, maintaining the engine’s performance and fuel efficiency ³.

Compatibility with Specific Engine Models

• 4B3.9 and B3.9 G Engines

The 3929036 Fuel Injector Supply Tube is designed to fit seamlessly with the 4B3.9 and B3.9 G engines. These engines are known for their robust performance and reliability, often used in various industrial and commercial applications. The supply tube’s precise fit ensures that fuel is delivered consistently, supporting the engine’s operational demands ¹.

• QSB3.9 30 CM550 Engine

The QSB3.9 30 CM550 engine is another model that benefits from the 3929036 Fuel Injector Supply Tube. This engine is part of the QSB series, which is renowned for its versatility and durability in heavy-duty applications. The supply tube’s design aligns perfectly with the engine’s specifications, ensuring optimal fuel flow and performance ².

Importance of the Fuel Injector Supply Tube

The 3929036 Fuel Injector Supply Tube is essential for maintaining the integrity of the fuel delivery system. It prevents fuel leaks, which can lead to performance issues and potential safety hazards. By ensuring a secure and leak-free connection, this part contributes to the overall efficiency and longevity of the engine ³.

Installation and Maintenance

Proper installation of the 3929036 Fuel Injector Supply Tube is crucial for the engine’s performance. Technicians should follow the manufacturer’s guidelines to ensure the tube is correctly aligned and securely fastened. Regular maintenance checks can help identify any wear or damage, allowing for timely replacements and preventing potential engine issues ¹.

Role of Part 3929036 Fuel Injector Supply Tube in Engine Systems

The Fuel Injector Supply Tube, identified by part number 3929036, is integral to the efficient operation of various engine components. It facilitates the delivery of fuel from the fuel rail to the individual fuel injectors, ensuring a consistent and precise fuel supply. This part interfaces directly with the cylinder block and the short block, which encompass the engine block, crankshaft, and cylinders.

In the context of the assembly crankshaft and engine crankshaft, the Fuel Injector Supply Tube ensures that each cylinder receives the appropriate amount of fuel, synchronized with the piston’s movement. This precise fuel delivery is essential for optimal combustion and engine performance.

When considering the engine block and short block kit, the Fuel Injector Supply Tube plays a supportive role by maintaining fuel pressure and distribution. It works in conjunction with the service block to uphold the engine’s operational integrity. The tube’s design allows for seamless integration with the fuel rail and fuel injectors, promoting efficient fuel atomization and combustion within each cylinder.

Overall, the Fuel Injector Supply Tube is a key component in the fuel delivery system, enhancing the performance and reliability of the engine by ensuring consistent fuel supply to the injectors ².

Conclusion

The 3929036 Fuel Injector Supply Tube is a critical component in the fuel delivery system of Cummins engines, ensuring efficient and reliable fuel transfer from the fuel pump to the injectors. Its robust design, precise engineering, and compatibility with specific engine models contribute to the overall performance and longevity of the engine. Proper installation, regular maintenance, and timely troubleshooting are essential for maximizing the benefits of this Cummins part ¹²³.