4927495
Injector Fuel Supply Tube
Cummins®

The Cummins Injector Fuel Supply Tube, identified by Part #4927495, is a critical component in the fuel system of heavy-duty trucks. It facilitates the delivery of fuel from the fuel tank to the injectors, ensuring a consistent and precise fuel supply to the engine. This component is essential for maintaining the efficiency and performance of the truck’s engine, especially under demanding operational conditions.

Basic Concepts

Injector fuel supply tubes are fundamental components within the fuel injection system of diesel engines. They serve as conduits for fuel, transporting it from the fuel tank to the injectors. The efficiency of these tubes directly influences engine performance, as they must deliver fuel at the correct pressure and volume to ensure optimal combustion. This, in turn, affects the engine’s power output, fuel efficiency, and emissions levels ¹.

Purpose and Function

The Cummins Injector Fuel Supply Tube plays a pivotal role in the operation of a truck by ensuring the seamless delivery of fuel from the fuel tank to the injectors. This component is designed to withstand the high pressures and temperatures associated with diesel fuel systems, facilitating the precise injection of fuel into the engine’s combustion chambers. Its function is crucial for maintaining the engine’s performance, efficiency, and reliability ².

Key Features

The Cummins Injector Fuel Supply Tube is characterized by several key features that enhance its performance and durability. Constructed from high-quality materials, it is designed to resist corrosion and wear, ensuring longevity in harsh operating environments. Its design includes precise engineering to maintain fuel pressure and flow, contributing to the overall efficiency of the fuel injection system. Additionally, the tube’s compatibility with various engine configurations underscores its versatility and reliability.

Benefits

Utilizing the Cummins 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 precision in fuel delivery enhances engine performance, allowing for more efficient combustion and power output. Furthermore, the tube’s robust construction and design increase the reliability of the fuel system, particularly in demanding operating conditions, thereby reducing the likelihood of fuel-related issues ³.

Installation and Compatibility

Proper installation of the Cummins Injector Fuel Supply Tube is vital for ensuring its effectiveness and the overall performance of the fuel system. Installation procedures should adhere to manufacturer guidelines to ensure compatibility with specific truck models and engine configurations. Attention to detail during installation, including correct alignment and secure fastening, is necessary to prevent fuel leaks and ensure optimal performance.

Maintenance and Troubleshooting

Regular maintenance of the Cummins Injector Fuel Supply Tube is recommended to ensure its continued performance and durability. This includes periodic inspections for signs of wear, corrosion, or damage. Troubleshooting common issues, such as fuel leaks or inconsistent fuel delivery, may involve checking the tube’s connections, inspecting for blockages, and ensuring that it is securely installed. Addressing these issues promptly can prevent more significant problems and maintain the efficiency of the fuel system.

Cummins 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 a strong reputation in the automotive industry, Cummins is committed to producing high-quality components for commercial vehicles. Their dedication to excellence and customer satisfaction is evident in the design and performance of components like the Cummins Injector Fuel Supply Tube, which are engineered to meet the demanding requirements of heavy-duty applications.

Cummins Injector Fuel Supply Tube (Part 4927495) Compatibility

The Cummins Injector Fuel Supply Tube, part number 4927495, is a critical component in the fuel delivery system of various Cummins engines. This part is designed to ensure a reliable and efficient fuel supply to the injectors, which is essential for maintaining optimal engine performance.

Compatibility with QSK38 Engines

The Injector Fuel Supply Tube is compatible with the following QSK38 engines:

• QSK38 CM2150 MCRS
• QSK38 CM850 MCRS

These engines are part of the QSK38 series, which is known for its robust design and high performance. The injector fuel supply tube ensures that the fuel is delivered consistently and accurately to the injectors, which is crucial for the smooth operation of these engines.

Compatibility with QSK50 Engines

The Injector Fuel Supply Tube also fits the following QSK50 engines:

• QSK50 CM2150 K107
• QSK50 CM2150 MCRS
• QSK50 CM2350 K108

The QSK50 series engines are designed for heavy-duty applications and require a reliable fuel delivery system to handle the increased demands. The injector fuel supply tube plays a vital role in ensuring that the fuel is delivered to the injectors without any interruptions, which is essential for maintaining the performance and efficiency of these engines.

Grouping by Engine Series

The compatibility of the injector fuel supply tube can be grouped by the engine series:

• QSK38 Series:

  • QSK38 CM2150 MCRS
  • QSK38 CM850 MCRS

• QSK50 Series:

  • QSK50 CM2150 K107
  • QSK50 CM2150 MCRS
  • QSK50 CM2350 K108

By grouping the engines in this manner, it becomes easier to understand the specific applications where the injector fuel supply tube is used. This ensures that the correct part is selected for maintenance and repair purposes, thereby maintaining the integrity and performance of the engines.

Role of Part 4927495 Injector Fuel Supply Tube in Engine Systems

The injector fuel supply tube, specifically part 4927495, is an essential component in the fuel delivery system of an engine. It is responsible for transporting fuel from the fuel supply plumbing to the injectors, ensuring a consistent and reliable fuel flow to the combustion chambers.

Integration with Engine Components

• Fuel Plumbing and Fuel Supply Plumbing: Part 4927495 interfaces directly with the fuel plumbing and fuel supply plumbing. It acts as a conduit, transferring fuel under pressure from the fuel supply system to the injectors. This ensures that the injectors receive a steady supply of fuel, which is vital for maintaining engine performance.

• Cylinder Head: The injector fuel supply tube is typically mounted on the cylinder head, where it delivers fuel to the injectors located within or on the cylinder head. This proximity allows for efficient fuel distribution to each cylinder, enhancing combustion efficiency and overall engine performance.

• Camshaft and Gear, Camshaft Cover: Although the injector fuel supply tube does not directly interact with the camshaft and gear or the camshaft cover, the proper functioning of the fuel system is interdependent with the timing and operation of the camshaft. Accurate fuel delivery is essential for optimal combustion, which in turn affects the performance and durability of the camshaft and related components.

• Connecting Rod and Piston: Efficient fuel delivery via the injector fuel supply tube directly impacts the combustion process within the cylinders. Proper fuel-air mixture combustion drives the pistons, which are connected to the crankshaft via the connecting rods. This sequence of events is fundamental to the engine’s power output and overall efficiency.

• Performance Parts: In high-performance engine setups, the injector fuel supply tube plays a significant role. It must be capable of handling increased fuel flow rates and pressures associated with performance modifications. Ensuring that the fuel supply tube is up to the task is essential for maintaining the reliability and performance of the engine.

Conclusion

In summary, the Cummins Injector Fuel Supply Tube (Part 4927495) is a key component in the fuel delivery system, working in concert with various engine components to ensure efficient and reliable fuel supply to the injectors. This, in turn, supports the overall performance and durability of the engine.