3094878
Injector Fuel Supply Tube
Cummins®

The Cummins Injector Fuel Supply Tube, part number 3094878, is a critical component designed to facilitate the delivery of fuel within diesel engines. Cummins, a prominent manufacturer in the automotive industry, produces this part to ensure efficient and reliable fuel supply to the injectors, which is essential for the optimal performance of diesel engines ¹.

Basic Concepts

Injector Fuel Supply Tubes are integral to the fuel system of diesel engines. Their primary function is to transport fuel from the fuel rail to the injectors. This ensures that each injector receives a consistent and precise amount of fuel, which is vital for combustion efficiency and overall engine performance ². The tubes must withstand high pressure and temperature, making their design and material selection critical.

Purpose and Role

The Injector Fuel Supply Tube plays a significant role in the operation of a truck by delivering fuel to the injectors and maintaining consistent fuel pressure. This consistent pressure is necessary for the injectors to atomize the fuel properly, which enhances combustion efficiency and ensures smooth engine operation ³. The tube’s design helps in reducing fuel leakage and maintaining the integrity of the fuel system.

Key Features

The Cummins Injector Fuel Supply Tube is characterized by several key features that enhance its performance and durability. These include a robust construction that can withstand the high pressures and temperatures within the fuel system. The tube is precisely engineered to ensure accurate fuel delivery and is designed to be compatible with Cummins engines, ensuring seamless integration and optimal performance ⁴.

Benefits

Using the Cummins Injector Fuel Supply Tube offers several benefits. It contributes to improved fuel efficiency by ensuring that fuel is delivered consistently and precisely to the injectors. This results in more efficient combustion and reduced fuel consumption. Additionally, the tube’s reliable operation under demanding conditions helps maintain engine performance and longevity. The durable construction and precise engineering also minimize the risk of fuel leaks and other common issues ⁵.

Installation and Compatibility

Proper installation of the Injector Fuel Supply Tube is vital for its effective operation. It should be installed according to the manufacturer’s guidelines to ensure it fits securely and functions correctly within the fuel system. The tube is compatible with various Cummins engine models, making it a versatile component for different applications. Ensuring compatibility with the specific engine model is important for optimal performance and reliability ⁶.

Maintenance and Troubleshooting

Regular maintenance of the Injector Fuel Supply Tube is important to ensure its continued reliable operation. This includes periodic inspection for signs of wear or damage, cleaning to remove any contaminants, and replacement according to the manufacturer’s recommended intervals. Troubleshooting common issues such as fuel leaks or decreased engine performance may involve checking the tube for cracks or blockages and ensuring it is properly installed and secured ⁷.

Cummins Overview

Cummins Inc. is a leading manufacturer in the automotive industry, known for its high-quality engines and components. Founded in 1919, Cummins has a long history of innovation and excellence. The company offers a wide range of products, including engines, filtration systems, and power generation equipment. Cummins is renowned for its commitment to quality, reliability, and performance, making it a trusted name in the industry ⁸.

Cummins Injector Fuel Supply Tube 3094878 Compatibility

The Cummins Injector Fuel Supply Tube part number 3094878 is designed to fit seamlessly with several engine models, ensuring optimal fuel delivery and engine performance. This component is crucial for maintaining the integrity of the fuel system, and its compatibility spans across various engine configurations.

QST30 CM552 Engines

The Injector Fuel Supply Tube 3094878 is specifically engineered to integrate with the QST30 CM552 engines. This part ensures that the fuel supply system operates efficiently, providing the necessary fuel to the injectors under various operating conditions. The design of this tube is critical for maintaining the pressure and flow of fuel, which is essential for the engine’s performance and longevity ⁹.

Grouped Engine Compatibility

While the primary focus is on the QST30 CM552 engines, it is important to note that the Injector Fuel Supply Tube 3094878 is also compatible with other Cummins engines within the same family. These engines share similar design principles and operational requirements, making the part interchangeable across different models. This compatibility ensures that users can maintain their engines with confidence, knowing that the fuel supply tube is designed to fit and function correctly ¹⁰.

Role of Part 3094878 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, designated as part 3094878, is an integral component within the fuel delivery system of an engine. It serves as a conduit that facilitates the precise delivery of fuel from the fuel rail to the injector. This ensures that each cylinder receives the correct amount of fuel at the optimal time, which is essential for efficient combustion and overall engine performance ¹¹.

When the fuel pump pressurizes the fuel within the fuel rail, the Injector Fuel Supply Tube directs this pressurized fuel to the injector. The injector, in turn, atomizes the fuel into a fine mist, which is then sprayed into the combustion chamber. This process is synchronized with the camshaft and gear mechanism, which controls the opening and closing of the intake and exhaust valves. Proper timing between fuel injection and valve operation is vital for maximizing engine efficiency and power output ¹².

Moreover, the Injector Fuel Supply Tube works in conjunction with performance parts to enhance engine capabilities. Upgrading to high-flow injectors or a more efficient fuel rail can significantly improve the engine’s performance, provided the Injector Fuel Supply Tube can handle the increased fuel flow without restriction ¹³.

Additionally, the system includes a vent tube, which allows for the release of any excess pressure or vapor within the fuel rail. This vent tube ensures that the fuel system operates within safe pressure limits, preventing damage to sensitive components and maintaining consistent fuel delivery ¹⁴.

Conclusion

The Cummins Injector Fuel Supply Tube, part number 3094878, plays a significant role in ensuring that fuel is delivered efficiently and effectively to the injectors, contributing to the overall performance and reliability of the engine system. Its robust construction, precise engineering, and compatibility with various Cummins engines make it a vital component for maintaining optimal engine performance and fuel efficiency ¹⁵.