
Jeep Wrangler owners looking to replace their fuel tank with a larger one may be disappointed to learn that it's not a simple task. While some companies offer custom-built tanks, it's not a cost-effective solution for most manufacturers due to the need for EPA testing and certification. As a result, auxiliary tanks, which require fuel transfer, are a more common option. However, these aren't true replacements in the traditional sense. For those seeking a permanent solution, the Genright tank is an option, albeit an expensive one.
| Characteristics | Values |
|---|---|
| Can you replace the Wrangler JL fuel tank for a larger one? | It is possible to replace the Wrangler JL fuel tank with a larger one, but it may be difficult to find a replacement "gas" tank. You are more likely to find a transfer tank or an auxiliary tank. |
| Options for larger fuel tanks | Auxiliary tanks are available from companies such as Long Range America (17 gallons) and ARB (20 gallons for four-door Wranglers). You can also find companies that will build custom gas tanks to your specifications. |
| Installation | It is recommended that installation of an auxiliary or replacement tank is undertaken by an experienced, well-equipped workshop. |
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What You'll Learn

Auxiliary fuel tanks are available for Jeep Wranglers
Auxiliary tanks are available, but you have to transfer the fuel from and into your stock gas tank. These are not larger gas tanks in the traditional sense.
One example of an auxiliary tank is the Long Range America 17-gallon auxiliary fuel tank. This tank is constructed from 2mm aluminized steel and is fully baffled internally, so a separate guard is not required. Long Range America sells and services all parts and components in their current range.
Another option is to have a custom tank made. You can give a company the dimensions and where you want the spout, and they will build one to fit.
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You can manufacture a tank for a diesel
If you want to replace your Wrangler JL fuel tank with a larger one, you have a few options. You can find companies that will make a custom gas tank to your specifications. Alternatively, you can install an auxiliary fuel tank, such as the Long Range America 17-gallon tank. This option is best undertaken by an experienced, well-equipped workshop. You can also look into the ARB Long Ranger 20-gallon aux tank for four-door Wranglers.
If you're handy and want to attempt to install a larger tank yourself, you can brace the back of the frame with 1/4-inch steel channel and make a bumper from 4-inch Schedule 40 Steel pipe. However, keep in mind that this is a significant undertaking and may not be feasible for everyone.
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You can find companies that will build a custom tank
It is possible to replace the Wrangler JL fuel tank with a larger one, but it is not a straightforward process. You may find a transfer tank, but it is unlikely that you will find a larger replacement gas tank. This is because gas tanks are part of the emissions system, and they are not for diesels. It is possible to manufacture a tank for a diesel, but it is not cost-effective for manufacturers to build and certify a larger gas tank.
Another option is to install an auxiliary tank, which you can transfer fuel from and into your stock gas tank. These are available from companies such as Rotopax and ARB, which sells an aux tank called the Long Ranger. However, this is not a larger gas tank in the traditional sense, and it requires filling up, which defeats the purpose.
It is important to note that the installation of an auxiliary or replacement tank is best undertaken by an experienced and well-equipped workshop.
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Jeep Wrangler JL long-range gas tanks are available
You will find auxiliary tanks that you have to transfer the fuel from and into your stock gas tank, but it's not really a larger gas tank in the traditional sense. One option is to install a Long Range America 17-gallon auxiliary fuel tank, which is constructed from 2mm aluminized steel and fully baffled internally. Another option is to find a company that can manufacture a custom gas tank to your specifications.
If you are considering adding an auxiliary fuel tank to your Jeep Wrangler JL, it is recommended that you have it installed by an experienced and well-equipped workshop.
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Genright offers a permanent solution
Jeep Wrangler owners have discussed the possibility of replacing the standard fuel tank with a larger one. However, it seems that this is not a straightforward task. One user on a Jeep Wrangler forum explained that they had planned to replace their tank with a larger one, but after a lot of work, they never got around to installing it. They also mentioned that they found a company that could custom-build a gas tank to their specifications.
Another user on the same forum suggested that it might be possible to find a transfer tank or an auxiliary tank, but a true replacement gas tank is unlikely due to the cost of manufacturing and certifying such a tank. Auxiliary tanks are available from companies like Long Range America and ARB, which offer 17- and 20-gallon tanks, respectively. These tanks are designed to be used in conjunction with the stock tank and are not true replacements.
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Frequently asked questions
You may be able to find a transfer tank, but it is unlikely that you will find a larger replacement gas tank. This is because gas tanks are part of the emissions system, and so manufacturers have to pass EPA testing and certification to build them, which is costly. You can find auxiliary tanks that you have to transfer the fuel from and into your stock gas tank, but it's not a larger gas tank in the traditional sense.
Auxiliary tanks are tanks that you have to transfer the fuel from and into your stock gas tank. You can find 17-gallon auxiliary tanks for Wrangler JL vehicles.
Long Range America sells 17-gallon auxiliary tanks for Wrangler JL vehicles. They are located in Boise, Idaho.
The only permanent larger fuel tank for Wrangler JL vehicles that we could find is the Genright tank.











































