4331966
Injector Fuel Supply Tube
Cummins®

Introduction

The Cummins Injector Fuel Supply Tube, identified by part number 4331966, is a critical component in the fuel system of heavy-duty trucks. Manufactured by Cummins Inc., a leader in the diesel engine and component industry, this part ensures the efficient operation of the fuel injection system. Its role is essential in maintaining the performance and reliability of Cummins engines, which are widely used in various heavy-duty applications.

Function and Operation

The Injector Fuel Supply Tube operates within the fuel injection system by facilitating the delivery of fuel from the fuel rail to the injector. This tube acts as a conduit, ensuring that fuel is consistently and precisely supplied to the injector, which then atomizes the fuel into the combustion chamber. The efficient operation of this tube is fundamental to the overall performance of the fuel injection system, as it directly influences the timing and quantity of fuel delivered to the engine ¹.

Purpose of the Injector Fuel Supply Tube

The specific role of the Injector Fuel Supply Tube in the operation of a truck is to contribute to efficient fuel delivery and engine performance. By providing a reliable pathway for fuel to travel from the fuel rail to the injector, it ensures that the engine receives the necessary fuel at the correct pressure and timing. This consistent fuel delivery is crucial for optimal engine operation, including power output, fuel efficiency, and emissions control ².

Key Features

The Cummins Injector Fuel Supply Tube is designed with several primary features that enhance its functionality. These include a durable material composition that resists corrosion and wear, ensuring longevity in demanding operating conditions. The design elements of the tube are tailored to maintain fuel pressure and prevent leaks, which are critical for the efficient operation of the fuel injection system. Additionally, the tube may incorporate unique characteristics such as reinforced sections or specialized coatings to further improve its performance and durability ³.

Benefits

The advantages provided by the Cummins Injector Fuel Supply Tube include improved fuel efficiency, enhanced engine performance, and reliability in demanding conditions. By ensuring consistent and precise fuel delivery, the tube contributes to the overall efficiency of the engine, allowing for better fuel economy and reduced emissions. Furthermore, its robust design and construction enhance the reliability of the fuel injection system, making it suitable for use in heavy-duty applications where durability and performance are paramount.

Installation and Compatibility

Proper installation of the Injector Fuel Supply Tube is crucial for its effective operation. The installation process may require specific tools or equipment to ensure that the tube is securely fitted and sealed within the fuel injection system. Compatibility with various Cummins engine models is an important consideration, as the tube must be designed to fit and function correctly within the specific fuel injection system of the engine it is intended for.

Common Issues and Troubleshooting

Typical problems associated with the Injector Fuel Supply Tube may include leaks or blockages, which can affect the performance of the fuel injection system. Troubleshooting these issues may involve inspecting the tube for signs of wear or damage, checking for proper sealing at connection points, and ensuring that the fuel pressure within the system is maintained at the correct levels. Addressing these issues promptly can help maintain the efficiency and reliability of the engine.

Maintenance Tips

Routine maintenance practices are recommended to ensure the longevity and optimal performance of the Injector Fuel Supply Tube. These may include regular inspection intervals to check for signs of wear, corrosion, or damage, and cleaning procedures to remove any buildup that may affect the tube’s operation. Following these maintenance tips can help prevent common issues and ensure that the fuel injection system operates efficiently over the life of the engine.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has established a reputation for innovation, quality, and reliability in the automotive industry, particularly in the realm of diesel engines and components. The company’s product range includes engines, filtration systems, powertrain components, and emission solutions, all designed to meet the demanding requirements of various industries and applications.

Cummins Injector Fuel Supply Tube (Part 4331966) Compatibility

The Cummins Injector Fuel Supply Tube, identified by part number 4331966, is a critical component in the fuel delivery system of certain Cummins engines. This part is designed to ensure a reliable and efficient transfer of fuel from the fuel supply system to the injectors, maintaining optimal engine performance.

Engine Compatibility

The Injector Fuel Supply Tube (4331966) is compatible with the following Cummins engines:

• QSK95 CM2350 K111
• QSK95 CM2350 K113

These engines are part of the Cummins QSK series, known for their robust design and high performance in various industrial and power generation applications. The compatibility of the Injector Fuel Supply Tube with these specific models ensures that the fuel supply system functions correctly, preventing leaks and maintaining fuel pressure integrity.

Installation and Functionality

When installing the Injector Fuel Supply Tube (4331966) in the QSK95 CM2350 K111 and QSK95 CM2350 K113 engines, it is essential to follow the manufacturer’s guidelines to ensure a proper fit and function. This part interfaces with the engine’s fuel injectors and the fuel supply manifold, requiring precise alignment and secure connections to avoid any disruptions in fuel flow.

Proper installation of this component is crucial for maintaining the engine’s efficiency and longevity. It ensures that the fuel is delivered to the injectors at the correct pressure and flow rate, which is vital for the engine’s combustion process. Any discrepancies in the installation of the Injector Fuel Supply Tube can lead to performance issues, reduced fuel efficiency, and potential engine damage.

Maintenance Considerations

Regular inspection and maintenance of the Injector Fuel Supply Tube (4331966) are recommended to prevent wear and ensure continued reliability. Checking for leaks, cracks, or signs of wear is essential during routine engine maintenance. If any damage is detected, the part should be replaced promptly to avoid compromising the engine’s performance.

Conclusion

In summary, the Cummins Injector Fuel Supply Tube (4331966) is a vital component for the QSK95 CM2350 K111 and QSK95 CM2350 K113 engines, ensuring the efficient and reliable delivery of fuel to the injectors. Proper installation and regular maintenance are key to maintaining the engine’s performance and longevity.