3093683
Injector Fuel Supply Tube
Cummins®

The Injector Fuel Supply Tube, identified by Part #3093683, is a component manufactured by Cummins, a well-established name in the automotive industry. This tube is integral to the fuel system of heavy-duty truck engines, ensuring efficient and reliable fuel delivery to the injectors.

Basic Concepts

Injector fuel supply tubes are fundamental components within the fuel system of diesel engines. Their primary role is to transport fuel from the fuel tank or fuel pump to the injectors. This process is vital for maintaining the engine’s performance, as it ensures that the injectors receive a consistent and adequate supply of fuel under varying operating conditions. The efficiency of this component directly influences the engine’s combustion process, fuel economy, and overall performance ¹.

Purpose and Function

The Injector Fuel Supply Tube plays a significant role in the operation of a truck by facilitating the delivery of fuel to the injectors. It is designed to maintain consistent fuel pressure, which is crucial for the precise operation of the injectors. This consistent pressure ensures that the fuel is atomized correctly during injection, leading to efficient combustion and optimal engine performance. The tube also helps in reducing fuel leaks and maintaining the integrity of the fuel system ².

Key Features

The Cummins Injector Fuel Supply Tube is characterized by several notable features that enhance its performance and durability. It is typically made from high-quality materials that are resistant to corrosion and wear, ensuring longevity even in demanding operating environments. The design of the tube includes precise engineering to maintain fuel pressure and flow rates. Additionally, it may feature reinforced connections to withstand high pressures and vibrations common in heavy-duty applications ³.

Benefits

Utilizing the Cummins Injector Fuel Supply Tube offers several advantages. One of the primary benefits is improved fuel efficiency, as the consistent fuel pressure and flow contribute to more efficient combustion. This results in better overall engine performance and reduced fuel consumption. Additionally, the robust construction of the tube ensures reliability in demanding operating conditions, minimizing the risk of fuel leaks and system failures. The enhanced durability also contributes to lower maintenance costs and increased uptime for heavy-duty trucks ⁴.

Troubleshooting and Maintenance

To ensure the optimal performance and longevity of the Injector Fuel Supply Tube, it is important to be aware of common issues and perform regular maintenance. Common problems may include fuel leaks, inconsistent fuel pressure, or blockages within the tube. Diagnostic procedures should involve checking for visible signs of wear or damage, testing fuel pressure with appropriate tools, and inspecting connections for tightness and integrity. Regular maintenance practices include cleaning the tube and connections, replacing worn-out components, and ensuring that the fuel system is free from contaminants.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes engines, filtration, and power generation products. With a history spanning over a century, Cummins has built a reputation for innovation, quality, and reliability in the automotive industry. The company is committed to advancing technology and providing solutions that meet the evolving needs of its customers, ensuring that their components, like the Injector Fuel Supply Tube, deliver exceptional performance and durability.

Cummins Injector Fuel Supply Tube (Part 3093683) Compatibility

The Cummins Injector Fuel Supply Tube, part number 3093683, is a critical component in the fuel delivery system of various engines. This part ensures the efficient and reliable transfer of fuel from the fuel supply system to the injectors, maintaining optimal engine performance.

Compatibility with Cummins Engines

QST30 CM552 Engines

The Injector Fuel Supply Tube is specifically designed to fit seamlessly with the QST30 CM552 engines. This compatibility ensures that the fuel supply system operates smoothly, reducing the risk of fuel leaks and ensuring consistent engine performance. The precise fitment of this part is crucial for maintaining the integrity of the fuel delivery system in these engines.

Other Cummins Engines

While the primary focus here is on the QST30 CM552 engines, it is important to note that the Injector Fuel Supply Tube (part number 3093683) is also compatible with a range of other Cummins engines. This versatility makes it a valuable component for technicians and engineers working with multiple engine types. Ensuring the correct fitment of this part across different engine models is essential for maintaining the efficiency and reliability of the fuel delivery system.

Role of Part 3093683 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, specifically part 3093683, is an essential component in the fuel delivery system of an engine. Its primary function is to transport fuel from the fuel rail to the fuel injectors. This ensures that each injector receives a consistent and precise amount of fuel, which is vital for the engine’s performance and efficiency.

Integration with Fuel Rail

The Injector Fuel Supply Tube connects directly to the fuel rail, which is a manifold that distributes fuel to each injector. This tube ensures a steady flow of fuel under pressure, allowing the injectors to atomize the fuel effectively when they open. Proper atomization is key to achieving efficient combustion within the engine cylinders.

Interaction with Fuel Injectors

Each fuel injector is supplied with fuel via the Injector Fuel Supply Tube. The tube’s design ensures minimal fuel leakage and maintains fuel pressure integrity. This consistent pressure is necessary for the injectors to operate correctly, spraying fuel into the intake tract in a fine mist that mixes well with air before entering the combustion chamber.

Contribution to Engine Performance

The performance of an engine is significantly influenced by the efficiency of its fuel delivery system. Part 3093683 plays a role in enhancing engine performance by ensuring that fuel is delivered consistently and under the correct pressure. This leads to better fuel economy, increased power output, and reduced emissions.

Role in Performance Parts

When considering performance parts, the Injector Fuel Supply Tube is often upgraded to handle higher fuel pressures and flow rates. This is particularly important in high-performance engines where fuel demand is greater. An upgraded tube can support more aggressive fuel injectors and higher engine RPMs, contributing to overall engine performance enhancements.

Maintenance and Upgrades

Regular maintenance of the Injector Fuel Supply Tube is essential to prevent fuel leaks and ensure optimal engine performance. In performance applications, upgrading to a higher-quality tube can provide benefits such as improved fuel flow, reduced restriction, and enhanced durability under high-stress conditions.

Conclusion

In summary, the Injector Fuel Supply Tube (part number 3093683) is a fundamental component in the fuel delivery system, interacting closely with the fuel rail and injectors to ensure efficient and consistent fuel delivery, which is essential for engine performance and reliability.