4061860
High Pressure Fuel Fitting
Cummins®

Introduction

The High-Pressure Fuel Connector (Part #4061860) manufactured by Cummins is a vital component in the fuel system of heavy-duty trucks. It ensures efficient engine performance by maintaining the integrity and pressure of the fuel as it travels from the fuel tank to the engine. This part is integral to the overall functionality of the fuel delivery system, contributing to the smooth operation and reliability of the vehicle.

Basic Concepts of High-Pressure Fuel Connectors

High-pressure fuel connectors are components designed to link various parts of the fuel system, ensuring a continuous and secure flow of fuel under high pressure. These connectors play a role in maintaining fuel integrity by preventing leaks and ensuring consistent pressure throughout the system. Their design and construction are important for the efficient operation of the fuel system, directly impacting the performance and efficiency of the engine ¹.

Purpose of the 4061860 High-Pressure Fuel Connector

The 4061860 High-Pressure Fuel Connector is specifically engineered to facilitate the connection between different segments of the fuel delivery system in heavy-duty trucks. It ensures a reliable and secure connection, allowing for the efficient transfer of fuel under high pressure. This part contributes to engine performance by maintaining optimal fuel pressure and flow, which are important for the engine’s combustion process and overall efficiency.

Key Features

The 4061860 High-Pressure Fuel Connector boasts several key features that enhance its performance and durability. It is constructed from high-quality materials that resist corrosion and wear, ensuring longevity in demanding environments. The design incorporates precise engineering to provide a secure fit and seal, minimizing the risk of leaks. Additionally, it features robust connections that can withstand the high pressures typical in modern fuel systems.

Benefits

Utilizing the 4061860 High-Pressure Fuel Connector offers several advantages. It contributes to improved fuel efficiency by ensuring a consistent and leak-free fuel delivery system. This part also enhances engine performance by maintaining optimal fuel pressure, which is important for efficient combustion. Furthermore, its reliable construction ensures durability across a range of operating conditions, providing peace of mind to truck operators.

Installation Process

Installing the 4061860 High-Pressure Fuel Connector requires careful attention to detail to ensure a secure and effective fit. The process involves disconnecting the old connector, cleaning the connection points, and then attaching the new connector with the appropriate tools. It is important to follow manufacturer guidelines to avoid damage and ensure proper sealing. Regular checks should be performed to confirm the connection is secure and leak-free.

Troubleshooting Common Issues

Common issues with the 4061860 High-Pressure Fuel Connector may include leaks or pressure inconsistencies. These problems can often be traced back to improper installation, wear and tear, or damage to the connector. Troubleshooting steps include inspecting the connection points for signs of wear or damage, ensuring the connector is properly seated, and checking for any obstructions in the fuel line that could affect pressure.

Maintenance Tips

To prolong the lifespan of the 4061860 High-Pressure Fuel Connector, regular maintenance is recommended. This includes periodic inspections for signs of wear or damage, cleaning the connection points to remove any debris, and ensuring the connector remains securely fastened. Replacement should be considered if any significant wear is observed or if performance issues arise that cannot be resolved through maintenance.

Compatibility with Cummins Engines

The High-Pressure Fuel Connector part number 4061860, manufactured by Cummins, is designed to fit seamlessly with several of their engine models. This part is important for maintaining the integrity of the fuel system, ensuring that high-pressure fuel is delivered efficiently and safely to the engine components.

ISC CM850 and QSC8.3 CM850 (CM2850)

The ISC CM850 and QSC8.3 CM850 (CM2850) engines are part of Cummins’ lineup that benefit from the 4061860 High-Pressure Fuel Connector. These engines are known for their robust performance and reliability, often used in heavy-duty applications. The connector’s design ensures a secure and leak-proof connection, which is vital for the operational efficiency of these engines.

ISL9 CM2150 SN and QSL8.9 CM2150 L141

The ISL9 CM2150 SN and QSL8.9 CM2150 L141 engines also utilize the 4061860 High-Pressure Fuel Connector. These engines are typically found in medium-duty applications, where they provide a balance of power and fuel efficiency. The connector’s compatibility with these engines ensures that the high-pressure fuel system operates without any disruptions, contributing to the overall performance and longevity of the engine.

QSL9 CM850 (CM2850)

The QSL9 CM850 (CM2850) engine is another model that is compatible with the 4061860 High-Pressure Fuel Connector. This engine is often used in various industrial and commercial applications, where it is required to deliver consistent power and efficiency. The connector’s design is tailored to fit this engine, ensuring that the fuel system functions optimally under different operating conditions.

Role of Part 4061860 High-Pressure Fuel Connector in Engine Systems

The part 4061860 High-Pressure Fuel Connector is an integral component in the fuel delivery system of modern engines. It facilitates the secure and efficient transfer of high-pressure fuel from the fuel pump assembly to the fuel injection pump and subsequently to the injector plumbing.

Integration with Key Components

1. Fuel Pump Assembly: The High-Pressure Fuel Connector interfaces directly with the fuel pump assembly, ensuring a robust connection that can withstand the high pressures generated during fuel delivery. This connection is vital for maintaining the integrity of the fuel supply line and preventing leaks.

2. Fuel Injection Pump: Once the fuel is pressurized by the fuel pump, the connector directs it to the fuel injection pump. This pump further increases the pressure to the levels required for efficient fuel atomization in the combustion chamber. The connector’s role here is to provide a seamless transition between these two high-pressure components.

3. Fuel Pump Head: In systems where the fuel pump head is a distinct component, the High-Pressure Fuel Connector ensures a reliable link between the pump head and the injection pump. This connection is essential for consistent fuel pressure and flow.

4. Injector Plumbing: The connector plays a significant role in the injector plumbing by ensuring that high-pressure fuel is delivered efficiently to each injector. This is particularly important in performance parts where precise fuel delivery can enhance engine performance and efficiency.

5. Accumulator: In systems equipped with an accumulator, the High-Pressure Fuel Connector helps manage the dampening of pressure fluctuations. This ensures a stable fuel supply to the injection system, contributing to smoother engine operation.

By effectively linking these components, the part 4061860 High-Pressure Fuel Connector ensures that the fuel delivery system operates smoothly, enhancing both the performance and reliability of the engine.

Conclusion

The 4061860 High-Pressure Fuel Connector is a critical component for several Cummins engine models, ensuring that the high-pressure fuel system operates efficiently and reliably. Its compatibility with the ISC CM850, QSC8.3 CM850 (CM2850), ISL9 CM2150 SN, QSL8.9 CM2150 L141, and QSL9 CM850 (CM2850) engines underscores its importance in maintaining the performance and longevity of these engines.