4090126
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4090126 Fuel Supply Tube is a component designed for use in heavy-duty trucks. It serves a significant role in the fuel delivery system, ensuring that the engine receives a consistent and reliable supply of fuel. This part is integral to maintaining the performance and efficiency of the truck’s engine ².

Basic Concepts of Fuel Supply Tubes

A fuel supply tube is a conduit within the fuel system that transports fuel from the tank to the engine. Its function is vital for the engine’s operation, as it ensures that fuel is delivered under the correct pressure and in the right quantity. The performance of a truck’s engine is directly influenced by the efficiency of its fuel supply system, making the fuel supply tube a key component ³.

Purpose of the Cummins 4090126 Fuel Supply Tube

The Cummins 4090126 Fuel Supply Tube plays a role in the fuel delivery system by providing a pathway for fuel to travel from the fuel tank to the engine. It is designed to maintain a consistent flow of fuel, which is necessary for the engine to operate efficiently. This tube helps in regulating the fuel pressure and ensuring that the engine receives the precise amount of fuel required for combustion ⁴.

Key Features

The Cummins 4090126 Fuel Supply Tube is constructed with materials that offer durability and resistance to the corrosive effects of fuel. Its design includes features that enhance its performance, such as reinforced connections to prevent leaks and a smooth interior to facilitate fuel flow. These characteristics contribute to the tube’s longevity and reliability in demanding applications ¹.

Benefits

Utilizing the Cummins 4090126 Fuel Supply Tube can lead to improved fuel efficiency, as it ensures that fuel is delivered to the engine without unnecessary loss or restriction. This can result in enhanced engine performance, as the engine operates with a stable fuel supply. Additionally, the reliability of the tube contributes to the overall dependability of the truck’s fuel system ².

Installation Process

Installing the Cummins 4090126 Fuel Supply Tube requires careful attention to detail to ensure a secure and proper fit. The process involves disconnecting the old tube, cleaning the fuel system, and connecting the new tube with the appropriate fittings. Tools such as wrenches and fuel line disconnect tools may be necessary. It is important to follow the manufacturer’s instructions to avoid damage to the tube or the fuel system ³.

Troubleshooting Common Issues

Common issues with fuel supply tubes 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 can help in early detection of these issues, allowing for timely maintenance ⁴.

Maintenance Tips

To prolong the lifespan of the Cummins 4090126 Fuel Supply Tube, regular inspections should be conducted to check for signs of wear or damage. Cleaning the tube and its connections can prevent buildup that may lead to blockages. Following the manufacturer’s recommended replacement intervals can also ensure that the tube remains in optimal condition ¹.

About Cummins

Cummins Inc. is a corporation known for its diesel engines, related technologies, and power generation equipment. The company has a history of providing reliable and high-performance components for the automotive industry, particularly in the segment of heavy-duty trucks. Cummins is recognized for its commitment to quality and innovation in engine technology ².

Cummins Fuel Supply Tube 4090126 Compatibility with Engine Models

The Cummins Fuel Supply Tube part number 4090126 is designed to fit seamlessly with several engine models, ensuring optimal fuel delivery and engine performance. This part is integral to the fuel system of these engines, facilitating the transfer of fuel from the fuel tank to the engine’s fuel injection system ³.

G855 and GTA855 CM558 (CM2358)

The G855 and GTA855 CM558 (CM2358) engines are part of Cummins’ robust lineup, known for their reliability and efficiency. The Fuel Supply Tube 4090126 is engineered to integrate with these engines, ensuring a consistent and reliable fuel supply. This compatibility is crucial for maintaining the high performance and durability that these engines are recognized for ⁴.

G101

The G101 engine, another member of Cummins’ extensive engine family, also benefits from the use of the Fuel Supply Tube 4090126. This part is specifically designed to fit the G101 engine, ensuring that the fuel supply is uninterrupted and efficient. The integration of this tube is vital for the engine’s operation, contributing to its overall efficiency and reliability ¹.

N14 G

The N14 G engine, known for its power and efficiency, is another engine model that is compatible with the Cummins Fuel Supply Tube 4090126. This part is designed to fit the N14 G engine, ensuring that the fuel supply is maintained at optimal levels. The compatibility of this tube with the N14 G engine is essential for its performance, providing a reliable and efficient fuel delivery system ².

Role of Part 4090126 Fuel Supply Tube in Engine Systems

The 4090126 Fuel Supply Tube is an integral component in the fuel delivery system of various engine configurations. It is responsible for transporting fuel from the fuel tank to the fuel control module, ensuring a consistent and reliable fuel supply to the engine ³.

Integration with the Fuel Control Module

The Fuel Supply Tube interfaces directly with the Fuel Control Module, which regulates the fuel flow to the engine’s combustion chambers. This module relies on a steady fuel supply to maintain optimal performance and efficiency. The tube’s precise fit and secure connection ensure that fuel is delivered without leaks or interruptions, supporting the module’s ability to modulate fuel delivery based on engine demand ⁴.

Ensuring Consistent Fuel Delivery

Within the engine system, the Fuel Supply Tube works in conjunction with other components to maintain a consistent fuel supply. It is designed to withstand the pressures and temperatures within the fuel system, providing a durable and reliable connection between the fuel tank and the Fuel Control Module. This reliability is essential for the engine’s performance, as any inconsistency in fuel delivery can lead to inefficient combustion and reduced engine efficiency ¹.

Supporting Engine Performance

The role of the Fuel Supply Tube extends beyond mere fuel transportation. It supports the engine’s overall performance by ensuring that the Fuel Control Module receives a stable fuel supply. This stability allows the module to fine-tune fuel delivery, enhancing engine responsiveness and efficiency. Additionally, the tube’s design helps in reducing fuel line noise and vibrations, contributing to a smoother engine operation ².

Facilitating Maintenance and Repairs

The Fuel Supply Tube is also designed with maintenance and repairs in mind. Its straightforward installation and removal process facilitate easy access to other components within the fuel system. This design consideration not only simplifies maintenance tasks but also reduces the likelihood of damage to surrounding components during repairs ³.

Conclusion

The Cummins 4090126 Fuel Supply Tube plays a significant role in the engine’s fuel delivery system by ensuring a consistent and reliable fuel supply to the Fuel Control Module, supporting engine performance, and facilitating maintenance and repairs. Its compatibility with various engine models and its durable design make it a crucial component for the efficient operation of heavy-duty trucks ⁴.