4934991
Fuel Supply Tube
Cummins®

Introduction

The Cummins 4934991 Fuel Supply Tube is a critical component in the fuel systems of commercial trucks, designed to facilitate the transfer of fuel from the tank to the engine. This ensures a consistent and adequate fuel supply for combustion, which is essential for the engine’s efficiency and performance.

Basic Concepts of Fuel Supply Tubes

A Fuel Supply Tube serves as a conduit for fuel, carrying it under pressure from the fuel tank to the engine’s fuel injection system. Its role is crucial in maintaining the correct quantity and pressure of fuel delivery, which is vital for the engine’s operation and performance ¹.

Role of the 4934991 Fuel Supply Tube in Truck Operation

This Cummins part ensures efficient fuel delivery to the engine, contributing to engine performance and efficiency by maintaining a steady fuel flow. Proper fuel delivery is essential for the engine’s combustion process, ensuring smooth and efficient truck operation.

Key Features

The 4934991 is engineered to withstand the pressures and temperatures of fuel systems in commercial trucks. Constructed from durable materials, it ensures longevity and reliability. Its design may include specific fittings or connections for seamless integration with other fuel system components, enhancing functionality.

Benefits

This part offers improved fuel delivery to the engine, resulting in enhanced performance. The reliability of the fuel supply tube contributes to the overall reliability of the truck’s fuel system, ensuring efficient engine operation under various conditions.

Troubleshooting and Maintenance

To troubleshoot issues related to the 4934991, check for leaks, blockages, or damage. Regular inspection and maintenance, including checking connections for tightness and ensuring no cracks or leaks, can prevent issues and ensure optimal performance ².

About Cummins

Cummins Inc. is renowned for its diesel engines and related technologies, with a commitment to quality and performance. The company’s reputation is built on its dedication to producing reliable engine components, including fuel system parts like the 4934991.

Cummins Engine Compatibility with Part 4934991

The 4934991, a Fuel Supply Tube, is designed for specific Cummins engine models, ensuring optimal fuel delivery and performance.

QSB6.7 CM850 (CM2850)

This engine model benefits from the 4934991, which ensures uninterrupted and efficient fuel supply, crucial for maintaining engine performance and longevity.

QSB7 CM2880 B117

The QSB7 CM2880 B117 engine, known for its durability and power, is enhanced by the 4934991, providing a reliable fuel supply that supports the engine’s demanding requirements.

Role of Part 4934991 Fuel Supply Tube in Engine Systems

The 4934991 is integral to the fuel delivery system, transporting fuel from the tank to the fuel filter. Its design ensures a consistent and reliable fuel supply to the engine.

Integration with Plumbing

This tube interfaces with the fuel lines, connecting to the fuel pump outlet and extending to the fuel filter assembly. Its secure fitting is essential for maintaining the integrity of the fuel line and preventing leaks.

Connection to Fuel Filter

The Fuel Supply Tube delivers fuel to the fuel filter, where contaminants are removed before the fuel is sent to the engine’s fuel injectors or carburetor. Its design allows for efficient fuel flow, ensuring the filter operates optimally.

Ensuring System Efficiency

By providing a dedicated pathway for fuel, the 4934991 helps maintain the efficiency of the fuel system. Its material and construction are chosen to withstand the pressures and temperatures within the fuel system, contributing to the engine’s reliability.

Conclusion

The Cummins 4934991 Fuel Supply Tube is a vital component in the fuel systems of commercial trucks, ensuring efficient and reliable fuel delivery to the engine. Its design, compatibility with specific Cummins engines, and role in maintaining system efficiency underscore its importance in engine performance and longevity.