4935650
Throttle Control
Cummins®

Introduction

The Cummins 4935650 Fuel Supply Tube is a critical component in the fuel systems of heavy-duty trucks. Its primary function is to facilitate the transfer of fuel from the tank to the engine, ensuring a consistent and reliable fuel supply. This component is essential for maintaining the performance and efficiency of the vehicle’s engine.

Purpose and Function

This Cummins part plays a role in the fuel delivery system by transporting fuel from the tank to the engine. It ensures that fuel is delivered at the correct pressure and flow rate, which is necessary for the engine to operate efficiently. Consistent fuel flow is vital for maintaining engine performance and preventing issues such as stalling or reduced power output ¹.

Key Features

The 4935650 is constructed from durable materials that are resistant to the corrosive effects of diesel fuel. Its design includes features that enhance its longevity and reliability, such as reinforced connections and a smooth interior to reduce flow resistance. These attributes contribute to the tube’s ability to withstand the demands of heavy-duty applications ².

Benefits

Using the 4935650 offers several advantages. It contributes to improved fuel efficiency by ensuring that fuel is delivered to the engine without unnecessary losses. The tube’s robust construction and design also enhance the reliability and longevity of the fuel system, reducing the need for frequent replacements or repairs ³.

Installation and Compatibility

Proper installation of this part involves following manufacturer guidelines to ensure a secure and leak-free connection. This may require specific tools and additional components, depending on the vehicle’s make and model. It is important to consult the vehicle’s service manual for detailed instructions and to verify compatibility with the specific truck model and engine type.

Maintenance and Troubleshooting

Regular maintenance of the 4935650 is important to ensure optimal performance. This includes inspecting the tube for signs of wear or damage and ensuring that all connections are secure. Common issues may include fuel leaks or reduced fuel flow, which can often be addressed by tightening connections or replacing worn components.

Safety Considerations

When handling and installing the 4935650, 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 properly sealed to prevent fuel spills.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes diesel and natural gas engines, as well as related technologies. With a history spanning over a century, Cummins has established a reputation for producing high-quality engines and components for heavy-duty applications, including trucks, construction equipment, and power generation systems.

Cummins Engine Compatibility with Fuel Supply Tube Part 4935650

The Cummins Fuel Supply Tube part number 4935650 is designed to fit seamlessly with a variety of Cummins engines, ensuring efficient fuel delivery and optimal performance. This part is compatible with the following engines:

QSB5.9 CM850 and QSB6.7 M CM2250

Both the QSB5.9 CM850 and QSB6.7 M CM2250 engines benefit from the precise engineering of the Fuel Supply Tube part 4935650. This component is integral to maintaining the integrity of the fuel system, ensuring that fuel is delivered consistently and accurately to the engine’s combustion chambers. The design of this part allows for easy installation and compatibility with the robust architecture of these engines.

QSC8.3 CM850 (CM2850)

The QSC8.3 CM850 (CM2850) engine also integrates the Fuel Supply Tube part 4935650 effectively. This part is engineered to withstand the high demands of this engine, providing a reliable fuel supply that supports the engine’s performance and longevity. The compatibility ensures that the fuel system operates smoothly, contributing to the overall efficiency and power of the engine.

QSM11 CM570

The QSM11 CM570 engine is another beneficiary of the Fuel Supply Tube part 4935650. This part is designed to fit the specific requirements of this engine, ensuring that the fuel supply is both efficient and reliable. The integration of this component is crucial for maintaining the engine’s performance and ensuring that it operates at peak efficiency.

Role of Part 4935650 Fuel Supply Tube in Engine Systems

The 4935650 Fuel Supply Tube is an essential component in the fuel delivery system of an engine, ensuring a steady and reliable flow of fuel from the fuel tank to the engine’s fuel injectors or carburetor. Its integration with various engine components is pivotal for optimal engine performance.

Integration with the Control System

The Fuel Supply Tube interfaces with the engine’s control system, which monitors and regulates fuel delivery. This system uses sensors to detect the engine’s operational parameters, such as load, speed, and temperature, and adjusts the fuel supply accordingly. The 4935650 Fuel Supply Tube ensures that the fuel is delivered at the correct pressure and volume, allowing the control system to maintain efficient combustion and power output.

Interaction with the Electrical Throttle Lever

In modern engines equipped with electronic throttle control (ETC), the Electrical Throttle Lever plays a significant role in regulating airflow into the engine. The 4935650 Fuel Supply Tube works in tandem with the ETC system by providing the necessary fuel to match the airflow controlled by the throttle lever. This synchronization ensures that the air-fuel mixture remains within optimal parameters, enhancing engine responsiveness and fuel efficiency.

Coordination with the Throttle Control

The Throttle Control, whether mechanical or electronic, governs the amount of air entering the engine. The 4935650 Fuel Supply Tube must deliver fuel in precise amounts corresponding to the throttle position. This coordination is vital for maintaining the correct air-fuel ratio, which is essential for efficient combustion, reduced emissions, and smooth engine operation. The Fuel Supply Tube’s consistent delivery helps the Throttle Control system achieve desired performance levels under varying driving conditions.

Conclusion

The Cummins 4935650 Fuel Supply Tube is a vital component in the fuel delivery system of heavy-duty trucks. Its robust construction, precise engineering, and compatibility with various Cummins engines ensure efficient and reliable fuel delivery. Proper installation, regular maintenance, and adherence to safety practices are essential for maximizing the performance and longevity of this component.