3964142
Injector Fuel Supply Tube
Cummins®

The Cummins Injector Fuel Supply Tube, part number 3964142, is a critical component designed to facilitate the efficient delivery of fuel within heavy-duty truck engines. This part is essential for the proper functioning of these vehicles, ensuring that fuel is accurately channeled to the injectors, thereby supporting engine performance. Cummins, a renowned name in the engine manufacturing industry, is known for its commitment to quality and innovation, making the 3964142 a reliable choice for truck operators ¹.

Basic Concepts of Injector Fuel Supply Tubes

An Injector Fuel Supply Tube is a conduit within the fuel system that directs fuel from the fuel rail to the injectors. Its primary function is to maintain a consistent fuel supply, which is essential for the precise operation of fuel injectors. By ensuring a steady flow of fuel, the tube contributes to the engine’s overall performance, including its power output and fuel efficiency ².

Role of the Injector Fuel Supply Tube in Truck Operation

The Injector Fuel Supply Tube plays a significant role in the fuel delivery system of a truck. It is responsible for ensuring that fuel is delivered to the injectors under the correct pressure and at the right time. This precise delivery is essential for the injectors to atomize the fuel effectively, which in turn supports combustion efficiency and engine performance ³.

Key Features of the 3964142 Injector Fuel Supply Tube

The 3964142 Injector Fuel Supply Tube is characterized by several key features that enhance its performance and durability. It is constructed from high-quality materials that are resistant to the corrosive effects of fuel, ensuring a long service life. The design of the tube includes specific elements that facilitate easy installation and maintenance, while also ensuring a secure fit within the fuel system. Additionally, the tube is engineered to withstand the high pressures and temperatures typical of heavy-duty truck engines ⁴.

Benefits of Using the 3964142 Injector Fuel Supply Tube

Utilizing the 3964142 Injector Fuel Supply Tube offers several advantages. It contributes to improved fuel efficiency by ensuring that fuel is delivered to the injectors with minimal loss or leakage. This efficient fuel delivery also enhances engine performance, allowing for more consistent power output. Furthermore, the durability and reliability of the tube reduce the likelihood of fuel system failures, contributing to the overall reliability of the truck ⁵.

Installation and Compatibility

Proper installation of the 3964142 Injector Fuel Supply Tube is important to ensure its effective operation. Installation procedures should follow manufacturer guidelines to maintain the integrity of the fuel system. Compatibility with various Cummins engine models is a key consideration, ensuring that the tube fits and functions correctly within the specific engine configuration ⁶.

Troubleshooting Common Issues

Identifying and addressing common issues with the Injector Fuel Supply Tube can help maintain engine performance. Issues such as leaks, blockages, or performance declines may arise and can often be traced back to the fuel supply tube. Regular inspections and maintenance can help identify these issues early, allowing for timely repairs or replacements ⁷.

Maintenance Tips

Regular maintenance of the 3964142 Injector Fuel Supply Tube is important for its longevity and optimal performance. This includes periodic inspections for signs of wear or damage, as well as cleaning procedures to remove any buildup that could affect fuel flow. Adhering to recommended inspection intervals and maintenance practices will help ensure the tube continues to function effectively ⁸.

Cummins: A Brief Overview

Cummins Inc. is a leader in the engine manufacturing industry, with a history of innovation and quality. The company offers a wide range of products, including engines, filtration, and power generation equipment, serving various industries. Cummins’ reputation in the heavy-duty truck sector is built on its commitment to producing reliable and efficient engine components, such as the 3964142 Injector Fuel Supply Tube ⁹.

Cummins Injector Fuel Supply Tube (Part 3964142) Compatibility

The Cummins Injector Fuel Supply Tube, part number 3964142, is designed to fit a variety of Cummins engines, ensuring a reliable and efficient fuel delivery system. This part is crucial for maintaining the performance and longevity of the engine by ensuring that fuel is properly supplied to the injectors ¹⁰.

Compatibility with Specific Engine Models

• ISC CM2150 and ISL9 CM2150 SN: These engines benefit from the precise fuel delivery facilitated by the 3964142 part. The injector fuel supply tube is engineered to withstand the high pressures and demands of these models, ensuring consistent performance.

• ISC CM850 and QSL8.9 CM2150 L141: For these engines, the injector fuel supply tube plays a vital role in maintaining the efficiency of the fuel injection system. The design of this part ensures that fuel is delivered smoothly and accurately, which is essential for the optimal operation of these engines.

• QSC8.3 CM850 (CM2850) and QSL9 CM850 (CM2850): These engines also rely on the injector fuel supply tube to ensure that fuel is delivered in a controlled and efficient manner. The part’s compatibility with these models is critical for maintaining the engine’s performance and reliability.

The injector fuel supply tube is a key component in the fuel delivery system of these Cummins engines, ensuring that fuel is delivered to the injectors in a manner that supports the engine’s performance and efficiency ¹¹.

Understanding the Role of Part 3964142 Injector Fuel Supply Tube in Engine Systems

The 3964142 Injector Fuel Supply Tube is an integral component in the fuel delivery system of an engine. It facilitates the precise and efficient transfer of fuel from the fuel manifold to the injectors, ensuring optimal engine performance.

Integration with Key Engine Components

1. Fuel Manifold: The 3964142 tube connects directly to the fuel manifold, which is responsible for distributing fuel to each cylinder. This connection ensures a consistent fuel supply, which is essential for maintaining engine efficiency and power output.

2. Injector Plumbing: This tube is a vital link in the injector plumbing system. It routes fuel from the manifold to the individual injectors, allowing for precise fuel metering. Proper installation and maintenance of this tube are essential to prevent fuel leaks and ensure consistent fuel pressure.

3. Injectors: The primary role of the 3964142 tube is to supply fuel to the injectors. Each injector sprays a fine mist of fuel into the combustion chamber, where it mixes with air and is ignited by the spark plug. The efficiency of this process directly impacts engine performance and fuel economy.

4. Cylinder Head: Positioned above the cylinder, the cylinder head houses the injectors and plays a key role in the combustion process. The 3964142 tube ensures that each injector receives the correct amount of fuel, contributing to even combustion across all cylinders.

5. Camshaft and Valvetrain: Although not directly connected, the camshaft and valvetrain work in tandem with the fuel supply system. Proper fuel delivery, facilitated by the 3964142 tube, ensures that the air-fuel mixture is optimal when the valves open, allowing for efficient combustion.

6. Connecting Rod and Piston: The efficiency of the fuel delivery system, including the 3964142 tube, directly affects the performance of the connecting rod and piston. Consistent fuel supply leads to more reliable combustion, which in turn drives the piston down with greater force, enhancing engine power and smoothness.

Importance in Engine Performance

The 3964142 Injector Fuel Supply Tube is a small yet significant part of the engine’s fuel system. Its role in ensuring a steady and precise fuel supply to the injectors is fundamental to achieving optimal engine performance. Engineers and mechanics must pay close attention to this component during maintenance and upgrades to ensure the engine operates at its best ¹².

Conclusion

The 3964142 Injector Fuel Supply Tube is a vital component in the fuel delivery system of Cummins engines. Its role in ensuring a consistent and precise fuel supply to the injectors is crucial for maintaining engine performance and efficiency. Proper installation, regular maintenance, and understanding its integration with other engine components are essential for maximizing the benefits of this part. Cummins’ commitment to quality and innovation ensures that the 3964142 is a reliable and efficient choice for heavy-duty truck operators.