4067926
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4067926 Fuel Supply Tube is a critical component in the fuel systems of heavy-duty trucks. It ensures a consistent and reliable fuel supply from the tank to the engine, which is essential for maintaining engine performance and efficiency.

Purpose and Function

This Cummins part facilitates the transfer of fuel from the tank to the engine, ensuring consistent fuel pressure and flow. Positioned within the fuel system, it provides a direct and unobstructed path for fuel, which is vital for the engine’s operation. By maintaining a steady fuel supply, the tube contributes to the engine’s ability to operate efficiently under various conditions ¹.

Key Features

The Fuel Supply Tube is constructed from durable materials resistant to the corrosive effects of fuel. It features secure connection types that ensure a tight seal, preventing leaks and maintaining system integrity. Its flexibility and resistance to kinking enhance its performance and durability in the demanding environment of a heavy-duty truck ².

Benefits

Using the Cummins 4067926 Fuel Supply Tube offers several advantages. It contributes to improved fuel efficiency by ensuring a consistent fuel supply to the engine. The tube’s reliable design enhances the overall reliability of the fuel system. Additionally, it is compatible with Cummins engines, ensuring seamless integration and optimal performance ³.

Installation and Compatibility

Proper installation of the Fuel Supply Tube involves following manufacturer guidelines to ensure it is securely connected and functions as intended. Specific tools or procedures may be required for installation, and it is important to refer to the manufacturer’s instructions for detailed steps. The tube is designed to be compatible with various Cummins engine models, facilitating easy integration into the fuel system ⁴.

Maintenance and Troubleshooting

To ensure the longevity and optimal performance of the Fuel Supply Tube, regular maintenance is recommended. This includes inspecting the tube for signs of wear, leaks, or damage. Common issues that may arise include blockages or leaks, which can be addressed through cleaning or replacement as necessary. Regular maintenance helps prevent more significant problems and ensures the fuel system operates efficiently ⁵.

Common Failures and Solutions

Typical failure modes for the Fuel Supply Tube include leaks or blockages. These issues can often be resolved through maintenance or replacement of the affected section. It is important to address these problems promptly to maintain the integrity of the fuel system and ensure the engine operates efficiently ⁶.

Safety Considerations

When working with the Fuel Supply Tube, it is important to follow safety practices to protect against the hazards associated with fuel system components. This includes ensuring proper ventilation when working with fuel, using appropriate personal protective equipment, and following procedures to safely depressurize the fuel system before performing any maintenance or repairs ⁷.

Environmental Impact

The use of the Cummins 4067926 Fuel Supply Tube can contribute to improvements in fuel efficiency and a reduction in emissions. By ensuring a consistent and reliable fuel supply, the tube helps the engine operate more efficiently, which can lead to lower fuel consumption and reduced emissions. This aligns with broader efforts to minimize the environmental impact of heavy-duty vehicles ⁸.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel engines and related technologies. With a history of innovation and a commitment to quality, Cummins serves customers in approximately 190 countries and territories, providing reliable and efficient power solutions for various applications. The company’s product range includes engines, filtration, emissions solutions, and power systems, all designed to meet the demanding requirements of today’s industries ⁹.

Cummins Fuel Supply Tube 4067926 Compatibility

The Cummins Fuel Supply Tube part number 4067926 is designed to fit seamlessly with a variety of Cummins engines, ensuring optimal fuel delivery and performance. This part is crucial for maintaining the integrity of the fuel system, facilitating the transfer of fuel from the tank to the engine.

Compatible Engines

• QST30 CM552
• QSK19 CM552

These engines benefit from the precision engineering of the Cummins Fuel Supply Tube 4067926, which is crafted to meet the stringent requirements of high-performance diesel engines. The compatibility of this part with these specific engine models ensures that users can rely on consistent and reliable fuel supply, which is critical for the engine’s operation.

Grouping of Engines

The Cummins Fuel Supply Tube 4067926 is particularly suited for engines within the QST30 and QSK19 series, specifically those identified by the CM552 designation. This grouping is based on the shared design and operational characteristics of these engines, which necessitate a fuel supply tube that can handle the demands of their fuel systems.

By ensuring that the fuel supply tube is compatible with these engines, Cummins maintains the reliability and efficiency of the fuel delivery system, which is essential for the overall performance and longevity of the engine.

Role of Part 4067926 Fuel Supply Tube in Fuel Plumbing Systems

The part 4067926 Fuel Supply Tube is an integral component in the fuel plumbing system of various engine setups. It facilitates the secure and efficient transfer of fuel from the fuel tank to the engine’s fuel injection system. This tube is designed to withstand the pressures and temperatures associated with fuel delivery, ensuring a consistent fuel supply to the engine.

In the context of fuel plumbing, the 4067926 Fuel Supply Tube connects to the fuel pump, which draws fuel from the tank. It then routes the fuel to the fuel filter, where impurities are removed before the fuel reaches the fuel injectors. The tube’s precise fit and robust construction are essential for maintaining the integrity of the fuel system, preventing leaks, and ensuring that the fuel delivery is uninterrupted.

Additionally, the 4067926 Fuel Supply Tube interfaces with various components such as the fuel rail, which distributes fuel to individual injectors, and the fuel pressure regulator, which maintains consistent fuel pressure within the system. Its role extends to connecting with the return line, allowing excess fuel to be redirected back to the tank, thus completing the fuel circuit.

The integration of the 4067926 Fuel Supply Tube within the fuel plumbing system underscores its importance in maintaining engine performance and reliability. Proper installation and maintenance of this component are vital for the overall efficiency and longevity of the engine’s fuel system.

Conclusion

The Cummins 4067926 Fuel Supply Tube is a vital component in the fuel systems of heavy-duty trucks, ensuring a consistent and reliable fuel supply to the engine. Its durable construction, compatibility with various Cummins engines, and role in the fuel plumbing system make it essential for maintaining engine performance and efficiency. Regular maintenance and proper installation are key to ensuring the longevity and optimal performance of this component.