3943376
Fuel Supply Tube
Cummins®

Introduction

The Cummins 3943376 Fuel Supply Tube is a vital component for heavy-duty trucks equipped with Cummins engines. It ensures a consistent and adequate fuel supply for combustion, contributing to the vehicle’s performance and reliability.

Basic Concepts of Fuel Supply Tubes

A fuel supply tube, like the Cummins 3943376, is a conduit in a truck’s fuel system that carries fuel from the storage tank to the engine. It must withstand pressures and temperatures, resist corrosion, and maintain a consistent fuel supply for engine operation ¹.

Purpose and Function of the 3943376 Fuel Supply Tube

This Cummins part ensures a steady fuel flow from the tank to the engine, crucial for maintaining engine performance under varying loads. It is designed for heavy-duty applications, providing a reliable fuel pathway that supports engine power output and efficiency ².

Key Features

The 3943376 is characterized by materials resistant to diesel fuel corrosion, designed to withstand high pressures and temperatures. It may include reinforced sections or specialized coatings for improved resilience, ensuring consistent fuel flow in demanding conditions ³.

Benefits

Using the 3943376 can lead to improved fuel efficiency and enhanced engine performance due to a consistent fuel supply. It also contributes to engine reliability, reducing the likelihood of fuel-related issues that could cause downtime ⁴.

Troubleshooting and Maintenance

Common issues with fuel supply tubes include leaks, blockages, or wear. Troubleshooting involves inspecting for damage, checking connections, and ensuring no obstructions. Maintenance tips include regular inspection for wear, secure connections, and replacing the tube if damage is detected ⁵.

Cummins Engine Compatibility with Fuel Supply Tube Part 3943376

The Cummins Fuel Supply Tube part number 3943376 is designed for specific Cummins engine models, ensuring efficient and reliable fuel delivery. It is compatible with ISB CM550 and ISC CM554 engines, integrating smoothly with existing fuel lines and connectors to maintain precise fuel pressure and flow ⁶.

Installation and Maintenance

Proper installation of the 3943376 is crucial for engine health and efficiency. Regular maintenance checks should be performed to inspect for wear, leaks, or damage, ensuring the fuel system’s performance ⁷.

Role of Part 3943376 Fuel Supply Tube in Engine Systems

The 3943376 Fuel Supply Tube is integral to the fuel delivery system, facilitating the transfer of fuel from the fuel pump to the fuel transfer system. It ensures a consistent and reliable fuel supply, supporting system efficiency and reliability ⁸.

Conclusion

The Cummins 3943376 Fuel Supply Tube is a critical component in the fuel system of Cummins engines, ensuring efficient and reliable fuel delivery. Its design and features contribute to engine performance, reliability, and longevity, making it essential for the operation of heavy-duty trucks.