3964168
Fuel Supply Tube
Cummins®

AVAILABLE

Cummins®

Ships within 1-3 business days

$51.95 $61.82

This truck part is made by Cummins®. We guarantee that all of our parts are from the OEM (original equipment manufacturer), ensuring a proper fit and quality manufacturing.


DESCRIPTION

The Cummins 3964168 Fuel Supply Tube is a critical component in the fuel systems of heavy-duty trucks, designed to transport fuel from the tank to the engine. This ensures a consistent and reliable fuel supply, which is vital for the engine’s operation. Engineered to meet the demanding requirements of heavy-duty applications, this Cummins part provides a durable and efficient solution for fuel delivery 3.

Basic Concepts of Fuel Supply Tubes

A fuel supply tube is a conduit within the fuel system that facilitates the transfer of fuel from the storage tank to the engine. Its primary function is to ensure that fuel is delivered under the correct pressure and in the right quantity to support engine performance. The tube must withstand the pressures and temperatures encountered within the fuel system, as well as resist corrosion and wear from the fuel it carries. Proper fuel delivery is fundamental to the engine’s combustion process, making the fuel supply tube a significant component in the overall efficiency and reliability of the vehicle 2.

Purpose of the Cummins 3964168 Fuel Supply Tube

The Cummins 3964168 is specifically designed to enhance the fuel delivery process in heavy-duty trucks. It ensures that fuel flows smoothly from the tank to the engine, maintaining the necessary pressure and volume for optimal engine performance. This tube is integral to the fuel system, directly influencing the engine’s ability to operate efficiently and consistently 1.

Key Features

The Cummins 3964168 boasts several key features that contribute to its performance and durability. It is constructed from high-quality materials resistant to the corrosive effects of diesel fuel. The design includes precise engineering to ensure a secure fit within the fuel system, minimizing the risk of leaks. Additionally, the tube may feature reinforced sections to withstand the high pressures typical in heavy-duty applications, ensuring longevity and reliability 3.

Benefits

Utilizing the Cummins 3964168 offers several advantages. It contributes to improved fuel efficiency by ensuring a consistent and unimpeded flow of fuel to the engine. The tube’s robust construction and design enhance the reliability of the fuel system, reducing the likelihood of failures or disruptions. Furthermore, its compatibility with Cummins engines ensures that it integrates seamlessly with the existing fuel system, providing a tailored solution for optimal performance 3.

Installation and Integration

When installing the Cummins 3964168, it is important to follow manufacturer guidelines to ensure proper integration within the truck’s fuel system. This includes verifying that all connections are secure and that the tube is correctly positioned to avoid kinks or obstructions that could impede fuel flow. Precautions should be taken to ensure that the fuel system is clean and free of contaminants before installation to maintain the integrity of the fuel delivery process 1.

Troubleshooting and Maintenance

To maintain the Cummins 3964168 and address potential issues, regular inspections are recommended. Look for signs of wear, such as cracks or leaks, which may indicate the need for replacement. Maintenance should include checking the connections for tightness and ensuring that the tube remains free of obstructions. Addressing these aspects can help prolong the lifespan of the tube and ensure consistent engine performance 3.

Cummins Overview

Cummins Inc. is a global power leader that designs, manufactures, and distributes a wide range of power solutions, including diesel engines and related technologies. With a history of innovation and a strong reputation in the automotive industry, Cummins is known for its commitment to quality and performance. The company’s product range includes engines, filtration, emissions solutions, and power systems, all designed to meet the needs of various industries, particularly in the realm of heavy-duty applications 1.

Role of Part 3964168 Fuel Supply Tube in Engine Systems

The Fuel Supply Tube (part 3964168) is an integral component in the fuel delivery system of an engine. Its primary function is to transport fuel from the fuel tank to the engine’s fuel injection system or carburetor. This ensures a consistent and reliable fuel supply, which is essential for the engine’s performance and efficiency 2.

When integrated with an Overhaul Kit, the Fuel Supply Tube plays a significant role in maintaining the integrity of the fuel system during engine maintenance. The overhaul kit typically includes various gaskets, seals, and other components necessary for a comprehensive engine rebuild. The Fuel Supply Tube, in this context, ensures that the newly overhauled engine receives a clean and uninterrupted fuel flow, which is vital for the engine’s longevity and performance post-overhaul 3.

In terms of Plumbing, the Fuel Supply Tube is a key element that connects various fuel system components. It interfaces with the fuel pump, fuel filter, and fuel injectors, creating a seamless pathway for fuel delivery. Proper installation and maintenance of the Fuel Supply Tube are essential to prevent fuel leaks and ensure optimal engine operation 2.

The Fuel Filter is another component that works in conjunction with the Fuel Supply Tube. The filter removes impurities and contaminants from the fuel before it reaches the engine. The Fuel Supply Tube delivers the filtered fuel to the engine, ensuring that only clean fuel is used, which helps in maintaining engine efficiency and preventing damage to the fuel injectors and other sensitive components 3.

Overall, the Fuel Supply Tube (part 3964168) is a fundamental component that ensures the smooth and efficient operation of the engine’s fuel system, working in harmony with other components to deliver reliable performance 3.

Conclusion

The Cummins 3964168 Fuel Supply Tube is a vital component in the fuel systems of heavy-duty trucks, ensuring a consistent and reliable fuel supply to the engine. Its robust construction, precise engineering, and compatibility with Cummins engines make it an essential part for maintaining optimal engine performance and efficiency. Regular maintenance and proper installation are key to ensuring the longevity and reliability of this part within the fuel system.


  1. Cummins Inc. Operation and Maintenance Manual. Bulletin Number 5504576, 2023.

  2. Brach, R. Matthew. SAE International’s Dictionary of Vehicle Accident Reconstruction and Automotive Safety. SAE International, 2023.

  3. Dempsey, Paul. Troubleshooting and Repairing Diesel Engines, 5th Edition. McGraw-Hill, 2018.

SPECIFICATIONS

Package Dimensions
8.25 x 2.63 x 4.0 in
Weight
0.3 lbs
* This information is provided as is and may be out of date. Please contact us or the manufacturer to verify warranty coverage.
* Variable geometry turbocharger and electronic actuator repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after October 1, 2018.
* Diesel Oxidation Catalyst (DOC), Diesel Particulate Filter (DPF), Selective Catalyst Reduction (SCR) catalyst, and Electronic Control Module (ECM) repairs are not eligible to be claimed as over-the-counter under New or ReCon parts warranty for parts installed after January 1, 2020.
* These restrictions are only applicable to New parts and ReCon parts coverages for the components listed above sold to a customer in the US or Canada. All other coverages are excluded. All other regions are excluded.