10 Best Extended Generator Fuel Tank of 2025

Tested and Reviewed: Top 10 Extended Generator Fuel Tank deals with expert ratings from 8.1 to a perfect 10

June 2025 Edition

Editor's Choice

9.7

Bergs System

Bergs System HND1.2000ID Bergs II Dual System W/Tank Cap

Editor's bottom line:

“This extended generator fuel tank is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Product type :AUTO ACCESSORY
Package dimensions :51.435 cm L x37.465 cm W x24.765 cm H
country of origin :United States
package weight :7.25lbs
Designed for use with Honda EU1000i/EU2000i generators

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Picked by 296 people today

9.5

Save 7%

HOgardenME

Fuel Gas Cap with Brass Hose for Honda EU2200i EU1000i EU2000i EU3000i, Extended Run Fuel Gas Cap Brass Hose, Gas Tank Cap Generator Parts

7% Off

Main Highlights

- Quality Material: Made of CNC billet aluminum with a stylish anodized red-coated finish, this extended run fuel gas cap is designed to provide excellent durability. The brass hose fittings offer protection against rust, , low and high temperatures, ensuring long-lasting performance.
- Upgraded Gas Cap with Machined Port: The extended gas cap features a machined 1/4" NPT port on top, allowing for easy installation. It comes with a 1/8" thick Nitrile N fuel resistant sealing gasket, ensuring a secure and leak-proof connection. The 1/4" hose ID x 1/4" male NPT brass hose fittings provide a positive connection, enhancing safety and containment.
- Extended Air Cap with Brass Hose Connector: The upgraded extended air cap is equipped with a brass hose connector, known for its resistance, anti-vibration performance, high temperature ductility, and low magnetic permeability. Combined with the aluminum gas cap, this accessory is a perfect addition to your generator setup.
- Convenient Auxiliary Air Tank Connection: With this custom air cap adapter, you can easily connect an auxiliary air tank to supply the main generator air tank, allowing for extended run time. Experience the convenience and functionality of this accessory, specifically designed for Honda alternators.
- Wide Compatibility: This extended run fuel gas cap is compatible with various for Honda models, including EU1000i, EU2000i, EU2200i, EU2200ic, Handi, for Champion 2000watt, EU20i, and EU10i. Upgrade your generator and enjoy extended run time with this brass hose fitting and aluminum gas cap combination.

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9.5

Stopsad

Stopsad Universal 5 Gallon Generator Gas Fuel Tanks, Compatible with Honda EC2500 and More(The Fittings is Where You Unscrew The Petrol Cap)

Main Highlights

Build to LastHigh-quality iron and baked paint finish ensure this generator fuel tank durability and appeal, reducing the need for frequent replacements.
Large Capacity DesignBoasting an outstanding 5 gallon capacity, this 5 gallon generator fuel tank empowers your generator to operate continuously for long durations. It significantly augments the convenience during outdoor activities and substantially elevates the operational efficiency, enabling you to complete your tasks without frequent refueling interruptions.
ConvenientEquipped with a user - friendly fuel switch(The fuel switch is where you unscrew the petrol cap) and a 2.32inch fuel inlet, refueling becomes an effortless task. It effectively prevents fuel from spilling and leaking, thus providing you with a completely hassle - free and smooth experience.
Thoughtful DesignThis generator gas tanks is furnished with a highly practical filter(The filter is where you unscrew the petrol cap) which can effectively trap dust and debris. By doing so, it successfully prevents clogging.
Easy InstallationThis 5 gallon generator gas fuel tank is designed with the utmost simplicity. Its straightforward structure, along with the comprehensive set of accessories provided, facilitates rapid installation. As a result, you can start using it in the shortest possible time without any complications.

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9.2

Winfire

Winfire 18.9L Durable 5-Gallon Generator Gas Fuel Tank with Built-In Filter, Easy Operation and Large Capacity for Extended Use, Anti-clogging design, and Simple Installation

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Main Highlights

Built to Last: Constructed from high-quality iron with a durable paint-baked finish, this gas tank is designed to resist wear and tear, ensuring long-lasting performance and reliability
Efficient Fuel Supply: The advanced air leakage system and strategically placed inlet/outlet holes ensure a smooth, consistent fuel supply, enhancing the overall performance
Large Capacity: The 5-Gallon fuel capacity minimizes the need for frequent refills, allowing for extended operation and improved efficiency during outdoor tasks
Efficient Fuel Supply: The advanced air leakage system and strategically placed inlet/outlet holes ensure a smooth, consistent fuel supply, enhancing the overall performance
Enhanced Filtration: The built-in filter effectively removes impurities, preventing blockages and ensuring the engine runs smoothly while extending the tanks lifespan

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9.0

YOOWEE

YOOWEE Single System Clam Kit HND1.2CS, Fit for EU1000i & EU2000i Generators, Replacement for HND1.2CS Single System Clam Kit, Extended Fuel Kit for Generator EU1000i & EU2000i

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Main Highlights

Note: the generator and fuel tank are not included
Application: Works with EU1000i/EU2000i. Replace for HND1.2CS B.E.R.G. I Single System Clam Kit
Function: with this HND1.2CS single system clam kit, helps to extend the runtime of the generator without having to constantly check the fuel levels
Material: the extended fuel kit is made of superior material with steel, brass, aluminum alloy, which is long lasting and durable
Professional Tool: If you own one of these generators, this fuel system you must have. What a difference not to have to fill the little one gallon tank all the time! No need to be elevated above the generator, it is a vacuum draw system (the fuel pump in your generator will actually draw the fuel from the tank without having to elevate)
Package List: Includes gas tank cap *1, fuel hose*1, elbow fitting *1, teflon tape *1, female coupler *1

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8.8

usvehj

Single System Clam Kit, Fit for Honda EU1000i & EU2000i Generators, Single System Clam Assembly Replace for HND1.2CS Single System Clam Kit

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Main Highlights

Specific ApplicationThe Single System Clam Kit is fit for Honda EU1000i & EU2000i Generators. Give you the option of buying replacement for HND1.2CS Single System Clam Kit without the Attwood gas tank included.
Strong FunctionReplace for HND1.2CS Single System Clam Kit. Help to extend the runtime of the generator without having to constantly check the fuel levels, and the aluminum cover maintains a good seal.
Superior MaterialMade of exceptional performance and longer life steel, copper, aluminum alloy and rubber, with strong durability, ultimate corrosion resistance and anti-rust performance. High-quality materials allow it to be used for a long time.
Package IncludesThe Single System Clam Kit includes 1 x Gas tank cap, 1 x Fuel hose, 1 x Elbow fitting, 1 x Teflon tape, and 1 x Female coupler. 5 Pieces in total.
100% Satisfaction GuaranteeWe are committed to providing excellent products and the best service for our customers. If you are not satisfied with the product, you can simply return it. We support a 30-day refund on return and a 12-month warranty.

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8.6

Sunluway

HND1.2CD Dual System Extended Run Generator Fuel Kit For Honda EU1000i EU2000i EU2200i Polaris P1000i Champion 2000 Generac and Kipor Generators (Fuel Tank Not Included)

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Main Highlights

Perfect Fitment: The HND1.2CD dual system extended run generator fuel kit is specially designed for generators such as Honda EU1000i, EU2000i, EU2200i / Polaris P1000i / Champion 2000 / Generac 800,1600,1400 / Kipor Generators 770, 1000, 2000, 2600. Note: Fuel Tank is NOT included.
Effortless Refueling Experience: Save you from refueling the generator in the middle of the night. The HND1.2CD extended run generator fuel system provides a reliable connection between an external fuel tank and two generators extending the run time of both generators. The vacuum draw technology ensures a seamless flow of fuel from the system to the generator. With a drop tube, you can use your gas tank of any size to keep it running for a longer or shorter period.
Durable & Strong Material: The ND1.2CD dual system extended run generator fuel kit is made with Aerospace grade material that will not be damaged by gas, freeze in the cold, or fade in the sun. It has a flexible and wear-resistance rubber hose and all of its systems have a very easy, non-invasive set-up.
Easy Setup & Time-Saving: The extended-run generator fuel kit with plug and play design, which makes the installation quick and effortless. Simply screw the T-connector to the tank and connect the fuel line to the T-connector. Fit the piping connector to the cap and connect the coupler adapter to the cap tightly. Then Screw the cap on the generator. Lock the hose with a quick connection to the coupler adapter and Done! Note: Please add Teflon on all the threaded male fitting before screwing.
After-Sale Service: If you have any problems with this Dual System Extended Run Generator Fuel Kit, please feel free to contact us. We are more than happy to help. Note: Please carefully check your machine model and required product size before purchasing.
Package Includes 2 x Fuel Lines, 2 x Caps, 2 x Piping Connector, 2 x Coupler Adapter, 2 x Teflon Tapes, 1 x T-Connector, 1 x Connector.

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8.3

sixcow

HND1.2CD Dual System Extended Run Generator Fuel Kit for Honda EU1000i, EU2000i, EU2200i, Polaris P1000i, Champion 2000, Generac and Kipor Generators (Without Fuel Tank)

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Main Highlights

Great Compatibility HND1.2CD Dual System Extended Run Generator Fuel Kit works with Honda EU1000i, EU2000i, EU2200i / Polaris P1000i / Champion 2000 / Generac 800,1600,1400 / Kipor Generators 770, 1000, 2000, 2600
Refueling HelperFree you from waking up in the middle of the night for refueling the generators. Allow you use one extended tank to feed both generators at the same time. Therefore, extend the power out-put of your generator.
Built to Last Caps are anodized and made with aircraft grade aluminum. Features anti-corrosion, high-temperature resistance and not easy to fade. Rubber hose provides excellent flexibility and wear resistance. Solid and durable to ensure long-lasting use.
Easy to Use HND1.2CD Dual System Extended Run Generator Fuel Kit. Plug and play system takes a breeze to install. Simply screw the T-connector to the tank and connect fuel line to the T-connector. Then, Fit the piping connector to the cap tightly and connect the coupler adapter to the cap tightly. Screw the cap on the generator. Lock the hose with quick connect to the coupler adapter and youre ready to go. Note: Please add teflon on all the threaded male fitting before screwing.
What You Get HND1.2CD Dual System Extended Run Generator Fuel Kit includes all the things you need when installing. 12 Pcs include Fuel Lines X2, Caps X2, Piping Connector X2, Coupler Adapter X2, Teflon Tapes X2, T-Connector X1, Connector X1
100% Satisfaction Guarantee Your satisfaction is our priority. We strive to give our customers excellent service. All Sixcow products support 30-Day money-back guarantee, 12-Month warranty for quality-related issues. Simply return it for your warranty.

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Best Value

8.1

Save 14%

maXpeedingrods

maXpeedingrods 12V DC Gasoline Electric Fuel Pump, Automatically Pump Fuel, Extended Running Time for Generator Without Stopping, Precise Control and No Fuel Leak

14% OffFree Shipping

Main Highlights

Automatic Fuel Level SensorThe sensor inside the electronic fuel pump will always monitor the fuel level in the fuel tank and automatically pump fuel, and auto stop the flowing when fuel tank full, precise control and no fuel leak.
Extend Running Time of GeneratorAuto-sense and pump fuel, no need to shut down the generator to refuel, meet your requirements of continuous long running time.
Easy OperationThe operation is simple and can be opened with one click to start monitoring.The quick connect fuel port, easy and reliable connection to the external fuel tank.(The fuel tank needs to be purchased separately)
Two Power Supply MethodsIf your generator has a DC 12V output socket, you can directly use this socket to supply power; if your generator does not have a DC 12V output socket, you can choose to use other DC 12V power supply to power the electric fuel pump.(such as DC 12V battery)
Wide ApplicationsSpecifically designed for our small generators and can fit our following generator models: MXR2300, MXR3500, MXR3500S, MXR4000GT, MXR4000.(Note that if a non-maXpeedingrods inverter generator is used, it is necessary to check that the fuel tank depth and fuel cap thread match the fuel pump.)

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8.1

LWHwareHT

LWHwareHT EXTENDED FUEL KIT for GENERATOR use your 5 G tank, Replacement for HONDA OEM

Main Highlights

We have chain stores in the local area (42 states) that can quickly transport your products, and all products come with a one-year warranty!
This kit works with EU1000, EU2000, and the new EU2200!
1 - 5 ft quick connect fuel line assembly ready to install on your tank. (the first picture details the actual KIT inside a 5 gallon tank (tank not included), the second picture is to show you the generator that it will work with.)
This is a very easy system to use, and it works as well as any other system out there. Simply unscrew your generator gas cap, replace it with this (identical) cap, click the fuel line fittings together and you're ready to go.

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Our Best Overall Choice

Best Choice

9.7

Bergs System

Bergs System HND1.2000ID Bergs II Dual System W/Tank Cap

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

Product type :AUTO ACCESSORY
Package dimensions :51.435 cm L x37.465 cm W x24.765 cm H
country of origin :United States
package weight :7.25lbs
Designed for use with Honda EU1000i/EU2000i generators

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