4988666
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4988666 Fuel Supply Tube is a critical component in the fuel systems of heavy-duty trucks. It ensures a consistent and reliable fuel supply to the engine under various operating conditions.

Purpose and Function

This Cummins part facilitates the transfer of fuel from the tank to the engine, maintaining a steady fuel flow essential for engine performance and efficiency. It operates under varying temperatures and pressures to ensure optimal engine operation ¹.

Key Features

Constructed with high-quality materials, the Fuel Supply Tube is designed to withstand the rigors of heavy-duty truck operations. Its robust construction ensures longevity and reliability, minimizing the risk of fuel leaks and ensuring secure connections within the fuel system ².

Benefits

Using this part contributes to improved fuel efficiency by ensuring a consistent fuel supply. Its durable construction enhances the reliability of the fuel system, promoting longevity and reducing the need for frequent replacements and maintenance ³.

Installation and Compatibility

Proper installation is crucial for the effective operation of the Fuel Supply Tube. Following installation guidelines ensures a leak-free connection. Compatibility information is available to confirm suitability for specific truck models and engine types, ensuring optimal performance and integration within the fuel system.

Maintenance and Troubleshooting

Regular maintenance is recommended to ensure continued efficiency and reliability. This includes periodic inspections for wear or damage and ensuring all connections are secure. Common issues such as fuel leaks or reduced fuel flow can often be addressed by inspecting and tightening connections or replacing worn components.

Safety Considerations

When handling and maintaining the Fuel Supply Tube, it is important to follow safety practices to avoid fuel leaks and ensure safe operation. This includes working in a well-ventilated area, using appropriate personal protective equipment, and ensuring that all connections are secure to prevent fuel spills. Awareness of the potential hazards associated with fuel systems is crucial to mitigate risks.

Cummins Overview

Cummins Inc. is a leading manufacturer in the commercial truck industry, known for its commitment to quality and innovation in automotive components. The company’s dedication to advancing technology and improving efficiency is evident in its wide range of products, including the Cummins 4988666 Fuel Supply Tube.

Compatibility

The Cummins Fuel Supply Tube part number 4988666 is designed to fit a variety of Cummins engines, ensuring proper fuel delivery and system integrity. Here is a detailed breakdown of the engines with which this part is compatible:

ISC Series

• ISC CM2150
• ISC8.3 CM2250

ISL Series

• ISL CM2150
• ISL9 CM2150 SN
• ISL9 CM2250

QSC/QSL Series

• QSC9 CM2250/QSL9 CM2250
• QSL8.9 CM2150 L141
• QSL9 CM2250
• QSL9 CM2350 L102
• QSL9 CM850 (CM2850)

This part is engineered to meet the specific needs of these engines, ensuring a secure and reliable connection for fuel supply. It is essential to verify the compatibility of this part with the specific engine model to ensure proper fitment and performance.

Role in Engine Systems

The 4988666 Fuel Supply Tube is integral to the efficient operation of engine systems, particularly in the context of plumbing and the Engine Control Module (ECM).

In the realm of plumbing, the Fuel Supply Tube ensures a consistent and reliable flow of fuel from the tank to the engine. This steady supply is essential for maintaining the engine’s performance under varying operational conditions. The tube’s design allows it to withstand the pressures and temperatures associated with fuel transport, ensuring that the fuel reaches the engine in optimal condition.

Regarding the Engine Control Module (ECM), the Fuel Supply Tube plays a supportive role in the overall fuel management system. The ECM relies on a stable fuel supply to execute its functions effectively. It monitors and adjusts the fuel-air mixture to optimize engine performance, emissions, and fuel efficiency. The Fuel Supply Tube, by providing a consistent fuel flow, enables the ECM to make precise adjustments, leading to enhanced engine operation.

Conclusion

The Cummins 4988666 Fuel Supply Tube is a key component in the fuel delivery system of heavy-duty trucks. Its robust construction, reliable performance, and compatibility with various Cummins engines make it an essential part for ensuring efficient and consistent fuel supply to the engine. Proper installation, regular maintenance, and adherence to safety practices are crucial for maximizing the benefits of this part.