4941153
Injector Fuel Supply Tube
Cummins®

The Fuel Injector Supply Tube, identified by the part number 4941153, is a component manufactured by Cummins, a well-established name in the automotive industry, particularly in the heavy-duty truck sector. This tube is integral to the fuel system of heavy-duty trucks, ensuring efficient and reliable fuel delivery to the injectors.

Basic Concepts of Fuel Injector Supply Tube

The Fuel Injector Supply Tube operates on fundamental principles that facilitate the delivery of fuel to the injectors. It serves as a conduit that transports fuel from the fuel tank or fuel pump to the injectors under pressure. This ensures that the injectors receive a consistent and adequate fuel supply, which is crucial for the combustion process in the engine ¹.

Purpose and Function

This Cummins part plays a significant role in the operation of a truck’s fuel system. It ensures that fuel is delivered to the injectors at the correct pressure and flow rate. This consistent delivery is vital for maintaining engine performance, ensuring that the fuel-air mixture is optimal for combustion. The tube also helps in reducing fuel leaks and maintaining system integrity ².

Key Features

The Fuel Injector Supply Tube is designed with several key features that enhance its performance and durability. It is typically made from high-quality materials that can withstand the high pressures and temperatures within the fuel system. The design may include reinforced sections to prevent kinking or damage, ensuring a reliable fuel path. Additionally, the tube may feature precise fittings and connections to ensure a secure and leak-free installation.

Benefits

The advantages provided by the 4941153 include improved fuel efficiency, enhanced engine performance, and increased reliability. By ensuring a consistent and pressurized fuel supply to the injectors, the tube contributes to more efficient combustion, which can lead to better fuel economy. Additionally, the reliable delivery of fuel helps maintain engine performance over time, reducing the likelihood of misfires or other fuel-related issues ³.

Installation Process

Installing this part requires careful attention to detail to ensure proper function and safety. The process typically involves disconnecting the old tube, cleaning the fuel lines, and connecting the new tube with the appropriate fittings. Tools such as wrenches and fuel line disconnect tools may be required. It is important to follow the manufacturer’s instructions to ensure a secure and leak-free installation.

Maintenance Tips

To ensure the longevity and optimal performance of the Fuel Injector Supply Tube, regular maintenance is recommended. This includes periodic inspections for signs of wear, leaks, or damage. Cleaning the tube and its connections can help prevent buildup and ensure a smooth fuel flow. Additionally, following the manufacturer’s guidelines for replacement intervals can help maintain system reliability.

Troubleshooting Common Issues

Common problems associated with the Fuel Injector Supply Tube may include leaks or blockages. If a leak is detected, it is important to identify the source and repair or replace the affected section. Blockages can be addressed by cleaning the tube or, if necessary, replacing it. Regular inspections and maintenance can help prevent these issues.

Compatibility and Applications

The 4941153 is designed for use in specific types of engines and truck models. Its compatibility ensures that it fits seamlessly into the fuel system, providing reliable performance. The tube’s widespread application across various Cummins-powered vehicles highlights its versatility and effectiveness in different operating conditions.

Cummins: A Brief Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including engines, filtration, and emissions control technologies. With a strong reputation in the automotive industry, particularly in the heavy-duty truck sector, Cummins is known for its innovative products and commitment to quality. The company’s extensive product range and focus on customer satisfaction have established it as a trusted name in the industry.

Cummins Fuel Injector Supply Tube 4941153 Compatibility

The Cummins Fuel Injector Supply Tube part number 4941153 is designed to fit seamlessly with several Cummins engine models. This part is crucial for maintaining the integrity of the fuel delivery system, ensuring that fuel is efficiently and accurately supplied to the injectors.

QSB3.3 CM2150 Engines

The QSB3.3 CM2150 engine series is one of the many applications where the 4941153 is utilized. This engine is known for its robust performance and reliability, making it a popular choice in various industrial and commercial applications. The supply tube in this context plays a vital role in the engine’s operation by providing a stable and leak-free connection between the fuel pump and the injectors.

Grouping of Compatible Engines

While the QSB3.3 CM2150 is a specific example, the 4941153 is also compatible with other Cummins engines within the same engine family. These engines share similar design and operational characteristics, ensuring that the supply tube fits perfectly and functions as intended. The compatibility extends to other models that share the same fuel system architecture, ensuring that the part can be used interchangeably across various engine types within the same family.

Role of Part 4941153 Fuel Injector Supply Tube in Engine Systems

The Fuel Injector Supply Tube, part 4941153, is an essential component in the fuel delivery system of an engine. It facilitates the precise delivery of fuel from the fuel rail to the fuel injectors, ensuring that each cylinder receives the correct amount of fuel for combustion.

In the context of the connecting rod and piston, the role of the Fuel Injector Supply Tube becomes particularly significant. The connecting rod translates the linear motion of the piston into rotational motion of the crankshaft. For the piston to perform its function efficiently, the air-fuel mixture within the cylinder must be optimally combusted. This is where the Fuel Injector Supply Tube plays a key role.

By ensuring a consistent and regulated fuel supply to the injectors, the tube helps maintain the correct air-fuel ratio. This, in turn, supports the efficient operation of the piston as it moves up and down within the cylinder, driven by the combustion process. The seamless interaction between the Fuel Injector Supply Tube and the fuel injectors directly influences the performance and durability of the connecting rod and piston, contributing to the overall efficiency and reliability of the engine.

Conclusion

The Fuel Injector Supply Tube, part number 4941153, is a critical component in the fuel delivery system of Cummins engines. Its role in ensuring a consistent and reliable fuel supply to the injectors is vital for maintaining engine performance and efficiency. Regular maintenance and proper installation are key to maximizing the benefits of this part, ensuring optimal engine operation and longevity.