4067802
Injector Fuel Supply Tube
Cummins®

The Cummins Injector Fuel Supply Tube, part number 4067802, is a critical component in the fuel system of commercial truck engines. Cummins, a leader in engine manufacturing, is renowned for its commitment to quality and innovation. This Cummins part is designed to enhance the efficiency and reliability of diesel engines, playing a significant role in the overall performance of commercial trucks.

Basic Concepts of Injector Fuel Supply Tubes

An Injector Fuel Supply Tube is a component within the fuel system that facilitates the delivery of fuel from the fuel tank to the injectors. Its primary function is to ensure a consistent and reliable flow of fuel, which is essential for the combustion process in diesel engines ¹. The tube connects various parts of the fuel system, allowing for precise fuel delivery to each injector, thereby contributing to the engine’s overall operation and efficiency.

Role of the 4067802 Injector Fuel Supply Tube in Truck Operation

The Injector Fuel Supply Tube 4067802 is integral to the fuel delivery system in trucks. It ensures that fuel is delivered to the injectors at the correct pressure and volume, which is essential for optimal engine performance. By maintaining a steady fuel flow, the tube helps in achieving efficient combustion, which in turn enhances the truck’s power output and fuel efficiency ².

Key Features of the 4067802 Injector Fuel Supply Tube

The Injector Fuel Supply Tube 4067802 is engineered with high-quality materials to ensure durability and performance. Its design includes robust construction that can withstand the high pressures and temperatures within the fuel system. The tube is also crafted to provide a secure connection to other fuel system components, minimizing the risk of leaks and ensuring a reliable fuel supply.

Benefits of Using the 4067802 Injector Fuel Supply Tube

Utilizing the Injector Fuel Supply Tube 4067802 offers several advantages. It contributes to improved fuel efficiency by ensuring that fuel is delivered efficiently to the injectors. This results in better engine performance and reduced fuel consumption. Additionally, the tube’s durable construction enhances the reliability of the fuel system, making it suitable for demanding conditions typically encountered in commercial trucking.

Installation and Compatibility

Proper installation of the Injector Fuel Supply Tube 4067802 is crucial for its effective operation. It is designed to be compatible with various Cummins engine models, ensuring a seamless integration into the fuel system. During installation, it is important to follow the manufacturer’s guidelines to ensure that all connections are secure and that the tube is properly aligned within the system.

Maintenance and Troubleshooting

Regular maintenance of the Injector Fuel Supply Tube 4067802 is necessary to ensure its longevity and optimal performance. This includes periodic inspections for signs of wear or damage, and ensuring that all connections remain tight. Common issues may include leaks or blockages, which can be addressed by cleaning or replacing the tube as necessary.

Performance Under Various Conditions

The Injector Fuel Supply Tube 4067802 is designed to perform reliably under a range of operating conditions. Whether the truck is under high load, experiencing extreme temperatures, or using varying fuel qualities, the tube is built to maintain consistent fuel delivery. This ensures that the engine operates efficiently and reliably, regardless of the conditions.

Comparison with Other Fuel Supply Tubes

When compared to similar components from other manufacturers, the Injector Fuel Supply Tube 4067802 stands out for its design, performance, and durability. Its high-quality construction and precise engineering provide a reliable fuel delivery solution that meets the demanding requirements of commercial truck engines.

Cummins: A Brief Overview

Cummins Inc. is a global leader in the design, manufacture, and distribution of engines and related technologies. With a rich history of innovation and quality, Cummins has established a strong reputation in the commercial truck industry. The company’s commitment to excellence is evident in its wide range of engine components, including the Injector Fuel Supply Tube 4067802, which exemplifies Cummins’ dedication to providing reliable and high-performing solutions for the trucking industry.

Cummins Injector Fuel Supply Tube (Part 4067802) Compatibility

The Cummins Injector Fuel Supply Tube, identified by part number 4067802, is a critical component in the fuel delivery system of several Cummins engines. This part ensures that fuel is efficiently and accurately supplied to the injectors, which is essential for maintaining optimal engine performance and efficiency.

QST30 CM552 Engines

For the QST30 CM552 engines, the injector fuel supply tube is designed to fit seamlessly into the engine’s fuel system architecture. This tube is engineered to withstand the high pressures and temperatures typical of diesel engines, ensuring durability and reliability over time. The precise fitment of this part is crucial for maintaining the integrity of the fuel delivery system, preventing leaks, and ensuring that the injectors receive the correct amount of fuel for combustion.

Grouping of Compatible Engines

The Cummins Injector Fuel Supply Tube (4067802) is also compatible with a broader range of Cummins engines beyond the QST30 CM552. This part is often used in various models where similar fuel delivery systems are employed. The commonality in design and function allows for interchangeability across certain engine types, making it easier for technicians and fleet managers to source and install the necessary components.

Key Considerations

• Precision Fitment: The injector fuel supply tube must fit precisely to ensure proper fuel delivery and prevent leaks.
• Durability: Designed to withstand the harsh conditions within the engine, ensuring longevity and reliability.
• Compatibility: While primarily used in the QST30 CM552 engines, this part is also compatible with other Cummins engines with similar fuel systems.

Understanding the Role of Part 4067802 Injector Fuel Supply Tube in Engine Systems

The Injector Fuel Supply Tube, identified by part number 4067802, is an essential component in the fuel delivery system of an engine. This tube is responsible for transporting fuel from the fuel rail to the individual fuel injectors. Its role is significant in ensuring 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 and Injectors

The Injector Fuel Supply Tube connects directly to the fuel rail, which is a pressurized conduit that distributes fuel to the injectors. The fuel rail is typically a metal tube that runs along the top of the engine’s cylinder head(s). The Injector Fuel Supply Tube extends from the fuel rail to each injector, ensuring a direct and unobstructed path for fuel delivery. This setup allows for uniform fuel distribution, which is essential for balanced combustion across all cylinders.

Contribution to Engine Performance

In terms of performance, the Injector Fuel Supply Tube plays a supportive yet significant role. By ensuring a steady and reliable fuel supply to each injector, it helps maintain the engine’s power output and responsiveness. In high-performance engines, where fuel delivery precision is paramount, the integrity and efficiency of the Injector Fuel Supply Tube become even more important. Any restriction or leak in the tube can lead to uneven fuel distribution, potentially causing misfires, reduced power, and increased emissions.

Interaction with Performance Parts

When upgrading an engine with performance parts, the Injector Fuel Supply Tube may need to be reconsidered. High-flow fuel injectors, for example, require a commensurate increase in fuel supply to operate effectively. In such cases, the existing Injector Fuel Supply Tube might be replaced with a higher-capacity version to ensure that the increased fuel demand is met without any bottlenecks. This upgrade can significantly enhance the engine’s performance, allowing it to handle the increased fuel flow required by performance injectors and other high-output components.

Role in Fuel System Integrity

Beyond performance, the Injector Fuel Supply Tube also contributes to the overall integrity of the fuel system. It must be resistant to the corrosive effects of fuel and the high pressures within the fuel rail. Additionally, it must be able to withstand the thermal stresses of the engine environment. A well-designed Injector Fuel Supply Tube will maintain its structural integrity and sealing properties over the life of the engine, ensuring reliable fuel delivery under all operating conditions.

Conclusion

The Injector Fuel Supply Tube (part 4067802) is a fundamental component in the fuel delivery system, ensuring consistent and precise fuel supply to each injector. Its proper function is essential for engine performance, especially in high-performance applications where fuel delivery precision is critical. When upgrading engine components, consideration of the Injector Fuel Supply Tube’s capacity and integrity is necessary to maintain optimal fuel system performance.